Extracting prog: 24m32.863123926s
Minimizing prog: 11m23.26291711s
Simplifying prog options: 0s
Extracting C: 1m8.603900409s
Simplifying C: 7m33.516507302s


extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
single: failed to extract reproducer
bisect: bisecting 30 programs with base timeout 30s
testing program (duration=37s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [16, 24, 16, 4, 17, 4, 5, 24, 13, 10, 7, 8, 4, 9, 5, 5, 16, 2, 5, 16, 13, 10, 17, 4, 4, 10, 7, 9, 5, 5]
detailed listing:
executing program 0:
sendmsg$NL80211_CMD_GET_STATION(0xffffffffffffffff, &(0x7f0000000a00)={0x0, 0x0, &(0x7f0000000a40)={0x0}}, 0x14014)
r0 = socket$netlink(0x10, 0x3, 0x0)
setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r0, 0x10e, 0xc, 0x0, 0x0)
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8040000, 0x2000009, 0x401d031, 0xffffffffffffffff, 0x0)
openat(0xffffffffffffff9c, 0x0, 0x40, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000040)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
getpid()
sendmsg$TIPC_NL_BEARER_SET(0xffffffffffffffff, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000940)={&(0x7f0000000740)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x20000d0}, 0x44004)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000140)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000200), 0x651, 0x0)
recvmmsg(r1, &(0x7f0000000240), 0x10106, 0x2, 0x0)
r3 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000300)=ANY=[@ANYBLOB="ac00000000010505000000faff0000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff02000000000000009d0000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffac1e00010800074000000001180006801400040000000000000000000000000000000001"], 0xac}}, 0x0)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000400)={&(0x7f00000004c0)=ANY=[@ANYBLOB="c00000000001050500000000000000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff0200000000000000000000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffffffffff08000740010000012c0006801400040000000000000000000000000000000001"], 0xc0}}, 0x0)
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000300)={<r0=>0x0}, 0x0)
sched_setscheduler(r0, 0x2, &(0x7f0000000240)=0x8)
r1 = getpid()
sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeeb, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={<r2=>0xffffffffffffffff, <r3=>0xffffffffffffffff})
connect$unix(r2, &(0x7f000057eff8)=@file={0x0, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'}, 0x6e)
sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
futex(0x0, 0x6, 0x0, 0x0, 0x0, 0x0)
ppoll(0x0, 0x0, 0x0, 0x0, 0x0)
timerfd_settime(0xffffffffffffffff, 0x3, 0x0, 0x0)
clock_adjtime(0x0, 0x0)
openat$procfs(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/bus/input/devices\x00', 0x0, 0x0)
sendmsg$NFQNL_MSG_CONFIG(0xffffffffffffffff, 0x0, 0x40000)
mkdirat(0xffffffffffffff9c, &(0x7f0000000500)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000540)='./dev\x00', &(0x7f0000000580)='proc\x00', 0x0, 0x0)
r4 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
r5 = syz_open_procfs(0x0, &(0x7f0000000600)='fd/3\x00')
mount$9p_fd(0x0, &(0x7f0000000640)='./dev/kmsg\x00', &(0x7f0000000680), 0x0, &(0x7f00000006c0)={'trans=fd,', {'rfdno', 0x3d, r5}, 0x2c, {'wfdno', 0x3d, r4}})
r6 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$IPT_SO_SET_REPLACE(r6, 0x0, 0x40, &(0x7f0000000000)=@filter={'filter\x00', 0xe, 0x4, 0x298, 0xffffffff, 0x0, 0xd0, 0x168, 0xffffffff, 0xffffffff, 0xd0, 0x168, 0x200, 0xffffffff, 0x4, 0x0, {[{{@uncond, 0x0, 0xa8, 0xd0, 0x0, {}, [@common=@unspec=@time={{0x38}, {0x0, 0x7fffffff, 0x0, 0x1517f, 0xffffffff, 0xfe}}]}, @common=@unspec=@STANDARD={0x28, '\x00', 0x0, 0xfffffffc}}, {{@uncond, 0x0, 0x70, 0x98}, @common=@unspec=@STANDARD={0x28, '\x00', 0x0, 0xffffffff}}, {{@uncond, 0x0, 0x70, 0x98}, @common=@unspec=@STANDARD={0x28, '\x00', 0x0, 0xffffffff}}], {{'\x00', 0x0, 0x70, 0x98}, {0x28, '\x00', 0x0, 0xffffffff}}}}, 0x1000)
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbee2, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0x4e21}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, 0x0, 0x0, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x6)
io_cancel(0x0, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0, 0x3}, 0x0)
r3 = memfd_create(&(0x7f0000000380)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa4q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x00\x98S7\xc9\x00\x00\x00\x00\x00\x00\x00\xf3\xff\x00\x00\x00\x00\xdf8\x9c\xc0T\xd2\xa7\v\x9a\xd2b\x8aL\xdd\x9e\x9d0\xb9\xd8K\x7f\x02\xf0\x19?j\x88l)l\xdbO\x88\r\x9c\xc2\x97m\xe0\xd8\xe4\xaaM4\x92\xca\xd7\x03\x11{\x98-\xb3D\xb8L\a\xdc3\xc8\x19\x9dg\x90\xb5?J\xc8\b=\xc5\b\xd9\x9eG[\xa9\xff]\xdaH\xc1Q\x95T\xfe\x9eRq\xdd[\x90MVb\x122m\xef\xeded#\xaf\xb5\xe3 \x8a\xfa\xf6\xdf\n]KbE\xb7\x9cLL\x93\xe7^\xc7\xde\xd0\xc2\xb5\xfe\v\xc3\xe1\x92[\xdbIq\x81\x00\x9b]\xee\xcbk\"\xdc\x89\x1c\xc3\xa1\x04\xa8\x8fF\xe9y\x0f<\xc0\xac\x06/\x8c\xfcP/\x83\x1f\v\xb8\xf1\xb1T\xdf_\xa1}\xf0)\xb3/_X\x9f\xee\tq\xec\xddG\x82\x95\xfe\x00\x94\xcf\xe1\xbd\x95+\xa4\x95\xf3!\xabu\xe1i', 0x2)
fcntl$addseals(r3, 0x409, 0x7)
r4 = ioctl$UDMABUF_CREATE(0xffffffffffffffff, 0x40187542, &(0x7f0000000000)={r3, 0x0, 0x0, 0x8000})
ioctl$DMA_BUF_IOCTL_SYNC(r4, 0x40086200, &(0x7f0000000080)=0x1)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/block/nullb0/queue/nr_requests\x00', 0x2, 0x0)
write(r0, 0x0, 0x0)
executing program 3:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2)
r1 = getpid()
sched_setscheduler(r1, 0x1, &(0x7f0000000100)=0x5)
r2 = socket(0x10, 0x803, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, 0x0)
sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@ipv6_newaddr={0x2c, 0x14, 0x9535393fea6295b5, 0x40, 0xfffffffc, {0xa, 0x3f, 0x1}, [@IFA_CACHEINFO={0x14, 0x6, {0x0, 0xfffff001, 0x0, 0x6}}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20000080}, 0x810)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000001480)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
connect$unix(r3, &(0x7f00000004c0)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r4, 0x0, 0x0, 0x0)
recvmmsg(r3, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2)
rt_sigtimedwait(0x0, 0x0, 0xffffffffffffffff, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=@getchain={0x24, 0x11, 0x839, 0x70bd25, 0x0, {0x0, 0x0, 0x0, 0x0, {0x1}, {0xf, 0xf}, {0x3, 0x7}}}, 0x24}, 0x1, 0x0, 0x0, 0x4000000}, 0x90)
executing program 4:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
sendto$inet6(r0, &(0x7f0000000300)="8b", 0x34000, 0x0, &(0x7f0000000000)={0xa, 0x0, 0x0, @private1}, 0x1c)
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2)
ppoll(&(0x7f0000000480), 0x0, &(0x7f00000004c0), 0x0, 0x0)
executing program 0:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
r0 = syz_ublk_setup_io_uring(0x6ff2, 0x0, 0x0, &(0x7f0000000300)=<r1=>0x0, &(0x7f0000000340)=<r2=>0x0)
r3 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
syz_io_uring_submit(0x0, r1, r2, &(0x7f0000000380)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, r3, 0x80, &(0x7f0000000100)=@qipcrtr={0x2a, 0x3}, 0x0, 0x0, 0x1})
syz_ublk_add_dev(r0, 0x0, r1, r2, &(0x7f0000000400)={0x2e, 0x5, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x1, 0x9, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x0, 0x0}}, 0x0)
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0)
getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000300)={<r0=>0x0}, 0x0)
sched_setscheduler(r0, 0x2, &(0x7f0000000240)=0x8)
r1 = getpid()
sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeeb, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={<r2=>0xffffffffffffffff, <r3=>0xffffffffffffffff})
connect$unix(r2, &(0x7f000057eff8)=@file={0x0, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'}, 0x6e)
sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
futex(0x0, 0x6, 0x0, 0x0, 0x0, 0x0)
ppoll(0x0, 0x0, 0x0, 0x0, 0x0)
timerfd_settime(0xffffffffffffffff, 0x3, 0x0, 0x0)
clock_adjtime(0x0, 0x0)
openat$procfs(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/bus/input/devices\x00', 0x0, 0x0)
sendmsg$NFQNL_MSG_CONFIG(0xffffffffffffffff, 0x0, 0x40000)
mkdirat(0xffffffffffffff9c, &(0x7f0000000500)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000540)='./dev\x00', &(0x7f0000000580)='proc\x00', 0x0, 0x0)
r4 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
r5 = syz_open_procfs(0x0, &(0x7f0000000600)='fd/3\x00')
mount$9p_fd(0x0, &(0x7f0000000640)='./dev/kmsg\x00', &(0x7f0000000680), 0x0, &(0x7f00000006c0)={'trans=fd,', {'rfdno', 0x3d, r5}, 0x2c, {'wfdno', 0x3d, r4}})
r6 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$IPT_SO_SET_REPLACE(r6, 0x0, 0x40, &(0x7f0000000000)=@filter={'filter\x00', 0xe, 0x4, 0x298, 0xffffffff, 0x0, 0xd0, 0x168, 0xffffffff, 0xffffffff, 0xd0, 0x168, 0x200, 0xffffffff, 0x4, 0x0, {[{{@uncond, 0x0, 0xa8, 0xd0, 0x0, {}, [@common=@unspec=@time={{0x38}, {0x0, 0x7fffffff, 0x0, 0x1517f, 0xffffffff, 0xfe}}]}, @common=@unspec=@STANDARD={0x28, '\x00', 0x0, 0xfffffffc}}, {{@uncond, 0x0, 0x70, 0x98}, @common=@unspec=@STANDARD={0x28, '\x00', 0x0, 0xffffffff}}, {{@uncond, 0x0, 0x70, 0x98}, @common=@unspec=@STANDARD={0x28, '\x00', 0x0, 0xffffffff}}], {{'\x00', 0x0, 0x70, 0x98}, {0x28, '\x00', 0x0, 0xffffffff}}}}, 0x1000)
executing program 2:
socket$nl_route(0x10, 0x3, 0x0)
syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000001c0)={'syzkaller0\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000440)={'syzkaller0\x00', 0x1})
bind$x25(0xffffffffffffffff, &(0x7f0000000480), 0x12)
listen(0xffffffffffffffff, 0x1)
write$tun(r0, &(0x7f00000004c0)=ANY=[@ANYBLOB="000008050000010b"], 0x88)
r2 = accept(0xffffffffffffffff, 0x0, 0x0)
getpeername$packet(r2, &(0x7f0000000500), &(0x7f0000000540)=0x14)
executing program 1:
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000000c0)={'syz_tun\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syz_tun\x00', 0x1})
r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
listen(r2, 0x5)
write$tun(r0, &(0x7f0000000180)=ANY=[@ANYBLOB="000008050010010b"], 0xa)
write$tun(r0, &(0x7f00000001c0)=ANY=[@ANYBLOB="00000805001001"], 0xa)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
r0 = socket$inet6_sctp(0xa, 0x1, 0x84)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e23, 0x0, @empty}, 0x1c)
sendto$inet6(r0, &(0x7f00000000c0)="1a", 0x1, 0x0, &(0x7f0000000100)={0xa, 0x4e23, 0x0, @loopback}, 0x1c)
shutdown(r0, 0x1)
executing program 3:
r0 = gettid()
r1 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000280), 0x440, 0x0)
preadv(r1, &(0x7f00000002c0)=[{&(0x7f0000000300)=""/4096, 0x1000}], 0x1, 0x6, 0x0)
timer_create(0x0, &(0x7f0000001300)={0x0, 0x21, 0x4, @tid=r0}, 0x0)
timer_settime(0x0, 0x1, &(0x7f0000001380)={{0x0, 0x989680}, {0x0, 0x3938700}}, 0x0)
r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000013c0)='blkio.bfq.empty_time\x00', 0x275a, 0x0)
write$binfmt_script(r2, &(0x7f0000001400), 0x208e24b)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xa, 0x28011, r2, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/block/nullb0/queue/nr_requests\x00', 0x2, 0x0)
write(r0, &(0x7f0000000480), 0x0)
executing program 4:
socket$nl_netfilter(0x10, 0x3, 0xc)
fsmount(0xffffffffffffffff, 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='270', 0x3)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./tracefs\x00', 0x1ff)
mount(0x0, &(0x7f0000000340)='./tracefs\x00', &(0x7f0000000380)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000003c0)='./tracefs/instances/foo\x00', 0x1ff)
executing program 1:
r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$TCSETSW2(r0, 0x402c542c, 0x0)
ioctl$EVIOCSFF(0xffffffffffffffff, 0x40304580, &(0x7f0000000300)={0x57, 0x0, 0x8, {0x0, 0x1}, {0x74, 0x2}, @rumble={0x1, 0x8}})
r1 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x822b01)
write$char_usb(r1, &(0x7f0000000040)="e2", 0xff0f)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000240)='1', 0x1)
executing program 4:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbee2, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0x4e21}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
io_cancel(0x0, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0, 0x3}, 0x0)
r3 = memfd_create(&(0x7f0000000380)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa4q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x00\x98S7\xc9\x00\x00\x00\x00\x00\x00\x00\xf3\xff\x00\x00\x00\x00\xdf8\x9c\xc0T\xd2\xa7\v\x9a\xd2b\x8aL\xdd\x9e\x9d0\xb9\xd8K\x7f\x02\xf0\x19?j\x88l)l\xdbO\x88\r\x9c\xc2\x97m\xe0\xd8\xe4\xaaM4\x92\xca\xd7\x03\x11{\x98-\xb3D\xb8L\a\xdc3\xc8\x19\x9dg\x90\xb5?J\xc8\b=\xc5\b\xd9\x9eG[\xa9\xff]\xdaH\xc1Q\x95T\xfe\x9eRq\xdd[\x90MVb\x122m\xef\xeded#\xaf\xb5\xe3 \x8a\xfa\xf6\xdf\n]KbE\xb7\x9cLL\x93\xe7^\xc7\xde\xd0\xc2\xb5\xfe\v\xc3\xe1\x92[\xdbIq\x81\x00\x9b]\xee\xcbk\"\xdc\x89\x1c\xc3\xa1\x04\xa8\x8fF\xe9y\x0f<\xc0\xac\x06/\x8c\xfcP/\x83\x1f\v\xb8\xf1\xb1T\xdf_\xa1}\xf0)\xb3/_X\x9f\xee\tq\xec\xddG\x82\x95\xfe\x00\x94\xcf\xe1\xbd\x95+\xa4\x95\xf3!\xabu\xe1i', 0x2)
fcntl$addseals(r3, 0x409, 0x7)
r4 = ioctl$UDMABUF_CREATE(0xffffffffffffffff, 0x40187542, &(0x7f0000000000)={r3, 0x0, 0x0, 0x8000})
ioctl$DMA_BUF_IOCTL_SYNC(r4, 0x40086200, &(0x7f0000000080)=0x1)
executing program 2:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000880)={{0x14, 0x10, 0x1, 0x0, 0x0, {0x2}}, [], {0x14, 0x11, 0x1, 0x0, 0x0, {0x2}}}, 0x28}}, 0x0)
executing program 1:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
r0 = syz_ublk_setup_io_uring(0x6ff2, 0x0, &(0x7f00000002c0)=<r1=>0x0, 0x0, &(0x7f0000000340)=<r2=>0x0)
r3 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
syz_io_uring_submit(r1, 0x0, r2, &(0x7f0000000380)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, r3, 0x80, &(0x7f0000000100)=@qipcrtr={0x2a, 0x3}, 0x0, 0x0, 0x1})
syz_ublk_add_dev(r0, r1, 0x0, r2, &(0x7f0000000400)={0x2e, 0x5, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x1, 0x9, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x0, 0x0}}, 0x0)
executing program 0:
sendmsg$NL80211_CMD_GET_STATION(0xffffffffffffffff, &(0x7f0000000a00)={0x0, 0x0, &(0x7f0000000a40)={0x0}}, 0x14014)
r0 = socket$netlink(0x10, 0x3, 0x0)
setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r0, 0x10e, 0xc, 0x0, 0x0)
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
openat(0xffffffffffffff9c, 0x0, 0x40, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000040)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
getpid()
sendmsg$TIPC_NL_BEARER_SET(0xffffffffffffffff, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000940)={&(0x7f0000000740)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x20000d0}, 0x44004)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000140)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000200), 0x651, 0x0)
recvmmsg(r1, &(0x7f0000000240), 0x10106, 0x2, 0x0)
r3 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000300)=ANY=[@ANYBLOB="ac00000000010505000000faff0000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff02000000000000009d0000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffac1e00010800074000000001180006801400040000000000000000000000000000000001"], 0xac}}, 0x0)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000400)={&(0x7f00000004c0)=ANY=[@ANYBLOB="c00000000001050500000000000000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff0200000000000000000000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffffffffff08000740010000012c0006801400040000000000000000000000000000000001"], 0xc0}}, 0x0)
executing program 1:
socket$nl_route(0x10, 0x3, 0x0)
syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000001c0)={'syzkaller0\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000440)={'syzkaller0\x00', 0x1})
bind$x25(0xffffffffffffffff, &(0x7f0000000480), 0x12)
listen(0xffffffffffffffff, 0x1)
write$tun(r0, &(0x7f00000004c0)=ANY=[@ANYBLOB="000008050000010b"], 0x88)
r2 = accept(0xffffffffffffffff, 0x0, 0x0)
getpeername$packet(r2, &(0x7f0000000500), &(0x7f0000000540)=0x14)
executing program 2:
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000000c0)={'syz_tun\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syz_tun\x00', 0x1})
r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
listen(r2, 0x5)
write$tun(r0, &(0x7f0000000180)=ANY=[@ANYBLOB="000008050010010b"], 0xa)
write$tun(r0, &(0x7f00000001c0)=ANY=[@ANYBLOB="00000805001001"], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2)
r1 = getpid()
sched_setscheduler(r1, 0x1, &(0x7f0000000100)=0x5)
r2 = socket(0x10, 0x803, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, 0x0)
sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@ipv6_newaddr={0x2c, 0x14, 0x9535393fea6295b5, 0x40, 0xfffffffc, {0xa, 0x3f, 0x1}, [@IFA_CACHEINFO={0x14, 0x6, {0x0, 0xfffff001, 0x0, 0x6}}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20000080}, 0x810)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000001480)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
connect$unix(r3, &(0x7f00000004c0)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r4, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r3, 0x0, 0x0, 0x2, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2)
rt_sigtimedwait(0x0, 0x0, 0xffffffffffffffff, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=@getchain={0x24, 0x11, 0x839, 0x70bd25, 0x0, {0x0, 0x0, 0x0, 0x0, {0x1}, {0xf, 0xf}, {0x3, 0x7}}}, 0x24}, 0x1, 0x0, 0x0, 0x4000000}, 0x90)
executing program 2:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
sendto$inet6(r0, &(0x7f0000000300)="8b", 0x34000, 0x0, &(0x7f0000000000)={0xa, 0x0, 0x0, @private1}, 0x1c)
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2)
ppoll(&(0x7f0000000480)=[{r0, 0xc0}], 0x1, 0x0, 0x0, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/block/nullb0/queue/nr_requests\x00', 0x2, 0x0)
write(r0, &(0x7f0000000480), 0x0)
executing program 3:
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000000c0)={'syz_tun\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syz_tun\x00', 0x1})
r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
listen(r2, 0x5)
write$tun(r0, &(0x7f0000000180)=ANY=[@ANYBLOB="000008050010010b"], 0xa)
write$tun(r0, &(0x7f00000001c0)=ANY=[@ANYBLOB="00000805001001"], 0xa)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
r0 = socket$inet6_sctp(0xa, 0x1, 0x84)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e23, 0x0, @empty}, 0x1c)
sendto$inet6(r0, &(0x7f00000000c0)="1a", 0x1, 0x0, &(0x7f0000000100)={0xa, 0x4e23, 0x0, @loopback}, 0x1c)
shutdown(r0, 0x1)
executing program 3:
socket$nl_netfilter(0x10, 0x3, 0xc)
fsmount(0xffffffffffffffff, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='270', 0x3)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./tracefs\x00', 0x1ff)
mount(0x0, &(0x7f0000000340)='./tracefs\x00', &(0x7f0000000380)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000003c0)='./tracefs/instances/foo\x00', 0x1ff)
executing program 4:
r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$TCSETSW2(r0, 0x402c542c, 0x0)
ioctl$EVIOCSFF(0xffffffffffffffff, 0x40304580, &(0x7f0000000300)={0x57, 0x0, 0x8, {0x0, 0x1}, {0x74, 0x2}, @rumble={0x1, 0x8}})
r1 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x822b01)
write$char_usb(r1, &(0x7f0000000040)="e2", 0xff0f)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program crashed: KASAN: use-after-free Read in nfsd_svc
bisect: bisecting 30 programs
bisect: split chunks (needed=false): <29>
bisect: split chunk #0 of len 29 into 3 parts
bisect: testing without sub-chunk 1/3
testing program (duration=35s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [7, 8, 4, 9, 5, 5, 16, 2, 5, 16, 13, 10, 17, 4, 4, 10, 7, 9, 5, 5]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
r0 = socket$inet6_sctp(0xa, 0x1, 0x84)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e23, 0x0, @empty}, 0x1c)
sendto$inet6(r0, &(0x7f00000000c0)="1a", 0x1, 0x0, &(0x7f0000000100)={0xa, 0x4e23, 0x0, @loopback}, 0x1c)
shutdown(r0, 0x1)
executing program 3:
r0 = gettid()
r1 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000280), 0x440, 0x0)
preadv(r1, &(0x7f00000002c0)=[{&(0x7f0000000300)=""/4096, 0x1000}], 0x1, 0x6, 0x0)
timer_create(0x0, &(0x7f0000001300)={0x0, 0x21, 0x4, @tid=r0}, 0x0)
timer_settime(0x0, 0x1, &(0x7f0000001380)={{0x0, 0x989680}, {0x0, 0x3938700}}, 0x0)
r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000013c0)='blkio.bfq.empty_time\x00', 0x275a, 0x0)
write$binfmt_script(r2, &(0x7f0000001400), 0x208e24b)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xa, 0x28011, r2, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/block/nullb0/queue/nr_requests\x00', 0x2, 0x0)
write(r0, &(0x7f0000000480), 0x0)
executing program 4:
socket$nl_netfilter(0x10, 0x3, 0xc)
fsmount(0xffffffffffffffff, 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='270', 0x3)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./tracefs\x00', 0x1ff)
mount(0x0, &(0x7f0000000340)='./tracefs\x00', &(0x7f0000000380)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000003c0)='./tracefs/instances/foo\x00', 0x1ff)
executing program 1:
r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$TCSETSW2(r0, 0x402c542c, 0x0)
ioctl$EVIOCSFF(0xffffffffffffffff, 0x40304580, &(0x7f0000000300)={0x57, 0x0, 0x8, {0x0, 0x1}, {0x74, 0x2}, @rumble={0x1, 0x8}})
r1 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x822b01)
write$char_usb(r1, &(0x7f0000000040)="e2", 0xff0f)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000240)='1', 0x1)
executing program 4:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbee2, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0x4e21}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
io_cancel(0x0, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0, 0x3}, 0x0)
r3 = memfd_create(&(0x7f0000000380)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa4q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x00\x98S7\xc9\x00\x00\x00\x00\x00\x00\x00\xf3\xff\x00\x00\x00\x00\xdf8\x9c\xc0T\xd2\xa7\v\x9a\xd2b\x8aL\xdd\x9e\x9d0\xb9\xd8K\x7f\x02\xf0\x19?j\x88l)l\xdbO\x88\r\x9c\xc2\x97m\xe0\xd8\xe4\xaaM4\x92\xca\xd7\x03\x11{\x98-\xb3D\xb8L\a\xdc3\xc8\x19\x9dg\x90\xb5?J\xc8\b=\xc5\b\xd9\x9eG[\xa9\xff]\xdaH\xc1Q\x95T\xfe\x9eRq\xdd[\x90MVb\x122m\xef\xeded#\xaf\xb5\xe3 \x8a\xfa\xf6\xdf\n]KbE\xb7\x9cLL\x93\xe7^\xc7\xde\xd0\xc2\xb5\xfe\v\xc3\xe1\x92[\xdbIq\x81\x00\x9b]\xee\xcbk\"\xdc\x89\x1c\xc3\xa1\x04\xa8\x8fF\xe9y\x0f<\xc0\xac\x06/\x8c\xfcP/\x83\x1f\v\xb8\xf1\xb1T\xdf_\xa1}\xf0)\xb3/_X\x9f\xee\tq\xec\xddG\x82\x95\xfe\x00\x94\xcf\xe1\xbd\x95+\xa4\x95\xf3!\xabu\xe1i', 0x2)
fcntl$addseals(r3, 0x409, 0x7)
r4 = ioctl$UDMABUF_CREATE(0xffffffffffffffff, 0x40187542, &(0x7f0000000000)={r3, 0x0, 0x0, 0x8000})
ioctl$DMA_BUF_IOCTL_SYNC(r4, 0x40086200, &(0x7f0000000080)=0x1)
executing program 2:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000880)={{0x14, 0x10, 0x1, 0x0, 0x0, {0x2}}, [], {0x14, 0x11, 0x1, 0x0, 0x0, {0x2}}}, 0x28}}, 0x0)
executing program 1:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
r0 = syz_ublk_setup_io_uring(0x6ff2, 0x0, &(0x7f00000002c0)=<r1=>0x0, 0x0, &(0x7f0000000340)=<r2=>0x0)
r3 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
syz_io_uring_submit(r1, 0x0, r2, &(0x7f0000000380)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, r3, 0x80, &(0x7f0000000100)=@qipcrtr={0x2a, 0x3}, 0x0, 0x0, 0x1})
syz_ublk_add_dev(r0, r1, 0x0, r2, &(0x7f0000000400)={0x2e, 0x5, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x1, 0x9, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x0, 0x0}}, 0x0)
executing program 0:
sendmsg$NL80211_CMD_GET_STATION(0xffffffffffffffff, &(0x7f0000000a00)={0x0, 0x0, &(0x7f0000000a40)={0x0}}, 0x14014)
r0 = socket$netlink(0x10, 0x3, 0x0)
setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r0, 0x10e, 0xc, 0x0, 0x0)
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
openat(0xffffffffffffff9c, 0x0, 0x40, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000040)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
getpid()
sendmsg$TIPC_NL_BEARER_SET(0xffffffffffffffff, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000940)={&(0x7f0000000740)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x20000d0}, 0x44004)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000140)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000200), 0x651, 0x0)
recvmmsg(r1, &(0x7f0000000240), 0x10106, 0x2, 0x0)
r3 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000300)=ANY=[@ANYBLOB="ac00000000010505000000faff0000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff02000000000000009d0000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffac1e00010800074000000001180006801400040000000000000000000000000000000001"], 0xac}}, 0x0)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000400)={&(0x7f00000004c0)=ANY=[@ANYBLOB="c00000000001050500000000000000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff0200000000000000000000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffffffffff08000740010000012c0006801400040000000000000000000000000000000001"], 0xc0}}, 0x0)
executing program 1:
socket$nl_route(0x10, 0x3, 0x0)
syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000001c0)={'syzkaller0\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000440)={'syzkaller0\x00', 0x1})
bind$x25(0xffffffffffffffff, &(0x7f0000000480), 0x12)
listen(0xffffffffffffffff, 0x1)
write$tun(r0, &(0x7f00000004c0)=ANY=[@ANYBLOB="000008050000010b"], 0x88)
r2 = accept(0xffffffffffffffff, 0x0, 0x0)
getpeername$packet(r2, &(0x7f0000000500), &(0x7f0000000540)=0x14)
executing program 2:
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000000c0)={'syz_tun\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syz_tun\x00', 0x1})
r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
listen(r2, 0x5)
write$tun(r0, &(0x7f0000000180)=ANY=[@ANYBLOB="000008050010010b"], 0xa)
write$tun(r0, &(0x7f00000001c0)=ANY=[@ANYBLOB="00000805001001"], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2)
r1 = getpid()
sched_setscheduler(r1, 0x1, &(0x7f0000000100)=0x5)
r2 = socket(0x10, 0x803, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, 0x0)
sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@ipv6_newaddr={0x2c, 0x14, 0x9535393fea6295b5, 0x40, 0xfffffffc, {0xa, 0x3f, 0x1}, [@IFA_CACHEINFO={0x14, 0x6, {0x0, 0xfffff001, 0x0, 0x6}}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20000080}, 0x810)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000001480)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
connect$unix(r3, &(0x7f00000004c0)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r4, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r3, 0x0, 0x0, 0x2, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2)
rt_sigtimedwait(0x0, 0x0, 0xffffffffffffffff, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=@getchain={0x24, 0x11, 0x839, 0x70bd25, 0x0, {0x0, 0x0, 0x0, 0x0, {0x1}, {0xf, 0xf}, {0x3, 0x7}}}, 0x24}, 0x1, 0x0, 0x0, 0x4000000}, 0x90)
executing program 2:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
sendto$inet6(r0, &(0x7f0000000300)="8b", 0x34000, 0x0, &(0x7f0000000000)={0xa, 0x0, 0x0, @private1}, 0x1c)
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2)
ppoll(&(0x7f0000000480)=[{r0, 0xc0}], 0x1, 0x0, 0x0, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/block/nullb0/queue/nr_requests\x00', 0x2, 0x0)
write(r0, &(0x7f0000000480), 0x0)
executing program 3:
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000000c0)={'syz_tun\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syz_tun\x00', 0x1})
r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
listen(r2, 0x5)
write$tun(r0, &(0x7f0000000180)=ANY=[@ANYBLOB="000008050010010b"], 0xa)
write$tun(r0, &(0x7f00000001c0)=ANY=[@ANYBLOB="00000805001001"], 0xa)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
r0 = socket$inet6_sctp(0xa, 0x1, 0x84)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e23, 0x0, @empty}, 0x1c)
sendto$inet6(r0, &(0x7f00000000c0)="1a", 0x1, 0x0, &(0x7f0000000100)={0xa, 0x4e23, 0x0, @loopback}, 0x1c)
shutdown(r0, 0x1)
executing program 3:
socket$nl_netfilter(0x10, 0x3, 0xc)
fsmount(0xffffffffffffffff, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='270', 0x3)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./tracefs\x00', 0x1ff)
mount(0x0, &(0x7f0000000340)='./tracefs\x00', &(0x7f0000000380)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000003c0)='./tracefs/instances/foo\x00', 0x1ff)
executing program 4:
r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$TCSETSW2(r0, 0x402c542c, 0x0)
ioctl$EVIOCSFF(0xffffffffffffffff, 0x40304580, &(0x7f0000000300)={0x57, 0x0, 0x8, {0x0, 0x1}, {0x74, 0x2}, @rumble={0x1, 0x8}})
r1 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x822b01)
write$char_usb(r1, &(0x7f0000000040)="e2", 0xff0f)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program crashed: KASAN: use-after-free Read in nfsd_svc
bisect: the chunk can be dropped
bisect: testing without sub-chunk 2/3
testing program (duration=32s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [13, 10, 17, 4, 4, 10, 7, 9, 5, 5]
detailed listing:
executing program 1:
socket$nl_route(0x10, 0x3, 0x0)
syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0)
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000001c0)={'syzkaller0\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000440)={'syzkaller0\x00', 0x1})
bind$x25(0xffffffffffffffff, &(0x7f0000000480), 0x12)
listen(0xffffffffffffffff, 0x1)
write$tun(r0, &(0x7f00000004c0)=ANY=[@ANYBLOB="000008050000010b"], 0x88)
r2 = accept(0xffffffffffffffff, 0x0, 0x0)
getpeername$packet(r2, &(0x7f0000000500), &(0x7f0000000540)=0x14)
executing program 2:
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000000c0)={'syz_tun\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syz_tun\x00', 0x1})
r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
listen(r2, 0x5)
write$tun(r0, &(0x7f0000000180)=ANY=[@ANYBLOB="000008050010010b"], 0xa)
write$tun(r0, &(0x7f00000001c0)=ANY=[@ANYBLOB="00000805001001"], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2)
r1 = getpid()
sched_setscheduler(r1, 0x1, &(0x7f0000000100)=0x5)
r2 = socket(0x10, 0x803, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, 0x0)
sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=@ipv6_newaddr={0x2c, 0x14, 0x9535393fea6295b5, 0x40, 0xfffffffc, {0xa, 0x3f, 0x1}, [@IFA_CACHEINFO={0x14, 0x6, {0x0, 0xfffff001, 0x0, 0x6}}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20000080}, 0x810)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000001480)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
connect$unix(r3, &(0x7f00000004c0)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r4, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r3, 0x0, 0x0, 0x2, 0x0)
sched_setaffinity(0x0, 0x8, &(0x7f00000002c0)=0x2)
rt_sigtimedwait(0x0, 0x0, 0xffffffffffffffff, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=@getchain={0x24, 0x11, 0x839, 0x70bd25, 0x0, {0x0, 0x0, 0x0, 0x0, {0x1}, {0xf, 0xf}, {0x3, 0x7}}}, 0x24}, 0x1, 0x0, 0x0, 0x4000000}, 0x90)
executing program 2:
r0 = socket$inet6_sctp(0xa, 0x5, 0x84)
sendto$inet6(r0, &(0x7f0000000300)="8b", 0x34000, 0x0, &(0x7f0000000000)={0xa, 0x0, 0x0, @private1}, 0x1c)
close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2)
ppoll(&(0x7f0000000480)=[{r0, 0xc0}], 0x1, 0x0, 0x0, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/block/nullb0/queue/nr_requests\x00', 0x2, 0x0)
write(r0, &(0x7f0000000480), 0x0)
executing program 3:
setns(0xc9, 0x0)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000000c0)={'syz_tun\x00', 0x1})
ioctl$TUNSETLINK(r0, 0x400454cd, 0x10f)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syz_tun\x00', 0x1})
r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0)
listen(r2, 0x5)
write$tun(r0, &(0x7f0000000180)=ANY=[@ANYBLOB="000008050010010b"], 0xa)
write$tun(r0, &(0x7f00000001c0)=ANY=[@ANYBLOB="00000805001001"], 0xa)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
r0 = socket$inet6_sctp(0xa, 0x1, 0x84)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e23, 0x0, @empty}, 0x1c)
sendto$inet6(r0, &(0x7f00000000c0)="1a", 0x1, 0x0, &(0x7f0000000100)={0xa, 0x4e23, 0x0, @loopback}, 0x1c)
shutdown(r0, 0x1)
executing program 3:
socket$nl_netfilter(0x10, 0x3, 0xc)
fsmount(0xffffffffffffffff, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='270', 0x3)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./tracefs\x00', 0x1ff)
mount(0x0, &(0x7f0000000340)='./tracefs\x00', &(0x7f0000000380)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000003c0)='./tracefs/instances/foo\x00', 0x1ff)
executing program 4:
r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$TCSETSW2(r0, 0x402c542c, 0x0)
ioctl$EVIOCSFF(0xffffffffffffffff, 0x40304580, &(0x7f0000000300)={0x57, 0x0, 0x8, {0x0, 0x1}, {0x74, 0x2}, @rumble={0x1, 0x8}})
r1 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x822b01)
write$char_usb(r1, &(0x7f0000000040)="e2", 0xff0f)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
bisect: testing without sub-chunk 3/3
testing program (duration=32s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [7, 8, 4, 9, 5, 5, 16, 2, 5, 16, 5]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
r0 = socket$inet6_sctp(0xa, 0x1, 0x84)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e23, 0x0, @empty}, 0x1c)
sendto$inet6(r0, &(0x7f00000000c0)="1a", 0x1, 0x0, &(0x7f0000000100)={0xa, 0x4e23, 0x0, @loopback}, 0x1c)
shutdown(r0, 0x1)
executing program 3:
r0 = gettid()
r1 = openat$ptp0(0xffffffffffffff9c, &(0x7f0000000280), 0x440, 0x0)
preadv(r1, &(0x7f00000002c0)=[{&(0x7f0000000300)=""/4096, 0x1000}], 0x1, 0x6, 0x0)
timer_create(0x0, &(0x7f0000001300)={0x0, 0x21, 0x4, @tid=r0}, 0x0)
timer_settime(0x0, 0x1, &(0x7f0000001380)={{0x0, 0x989680}, {0x0, 0x3938700}}, 0x0)
r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000013c0)='blkio.bfq.empty_time\x00', 0x275a, 0x0)
write$binfmt_script(r2, &(0x7f0000001400), 0x208e24b)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xa, 0x28011, r2, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/block/nullb0/queue/nr_requests\x00', 0x2, 0x0)
write(r0, &(0x7f0000000480), 0x0)
executing program 4:
socket$nl_netfilter(0x10, 0x3, 0xc)
fsmount(0xffffffffffffffff, 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x4000, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f00000002c0)='270', 0x3)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./tracefs\x00', 0x1ff)
mount(0x0, &(0x7f0000000340)='./tracefs\x00', &(0x7f0000000380)='tracefs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000003c0)='./tracefs/instances/foo\x00', 0x1ff)
executing program 1:
r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$TCSETSW2(r0, 0x402c542c, 0x0)
ioctl$EVIOCSFF(0xffffffffffffffff, 0x40304580, &(0x7f0000000300)={0x57, 0x0, 0x8, {0x0, 0x1}, {0x74, 0x2}, @rumble={0x1, 0x8}})
r1 = syz_open_dev$evdev(&(0x7f00000000c0), 0x0, 0x822b01)
write$char_usb(r1, &(0x7f0000000040)="e2", 0xff0f)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000240)='1', 0x1)
executing program 4:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbee2, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0x4e21}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
io_cancel(0x0, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0, 0x3}, 0x0)
r3 = memfd_create(&(0x7f0000000380)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa4q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x00\x98S7\xc9\x00\x00\x00\x00\x00\x00\x00\xf3\xff\x00\x00\x00\x00\xdf8\x9c\xc0T\xd2\xa7\v\x9a\xd2b\x8aL\xdd\x9e\x9d0\xb9\xd8K\x7f\x02\xf0\x19?j\x88l)l\xdbO\x88\r\x9c\xc2\x97m\xe0\xd8\xe4\xaaM4\x92\xca\xd7\x03\x11{\x98-\xb3D\xb8L\a\xdc3\xc8\x19\x9dg\x90\xb5?J\xc8\b=\xc5\b\xd9\x9eG[\xa9\xff]\xdaH\xc1Q\x95T\xfe\x9eRq\xdd[\x90MVb\x122m\xef\xeded#\xaf\xb5\xe3 \x8a\xfa\xf6\xdf\n]KbE\xb7\x9cLL\x93\xe7^\xc7\xde\xd0\xc2\xb5\xfe\v\xc3\xe1\x92[\xdbIq\x81\x00\x9b]\xee\xcbk\"\xdc\x89\x1c\xc3\xa1\x04\xa8\x8fF\xe9y\x0f<\xc0\xac\x06/\x8c\xfcP/\x83\x1f\v\xb8\xf1\xb1T\xdf_\xa1}\xf0)\xb3/_X\x9f\xee\tq\xec\xddG\x82\x95\xfe\x00\x94\xcf\xe1\xbd\x95+\xa4\x95\xf3!\xabu\xe1i', 0x2)
fcntl$addseals(r3, 0x409, 0x7)
r4 = ioctl$UDMABUF_CREATE(0xffffffffffffffff, 0x40187542, &(0x7f0000000000)={r3, 0x0, 0x0, 0x8000})
ioctl$DMA_BUF_IOCTL_SYNC(r4, 0x40086200, &(0x7f0000000080)=0x1)
executing program 2:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000880)={{0x14, 0x10, 0x1, 0x0, 0x0, {0x2}}, [], {0x14, 0x11, 0x1, 0x0, 0x0, {0x2}}}, 0x28}}, 0x0)
executing program 1:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
r0 = syz_ublk_setup_io_uring(0x6ff2, 0x0, &(0x7f00000002c0)=<r1=>0x0, 0x0, &(0x7f0000000340)=<r2=>0x0)
r3 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
syz_io_uring_submit(r1, 0x0, r2, &(0x7f0000000380)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, r3, 0x80, &(0x7f0000000100)=@qipcrtr={0x2a, 0x3}, 0x0, 0x0, 0x1})
syz_ublk_add_dev(r0, r1, 0x0, r2, &(0x7f0000000400)={0x2e, 0x5, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x1, 0x9, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x0, 0x0}}, 0x0)
executing program 0:
sendmsg$NL80211_CMD_GET_STATION(0xffffffffffffffff, &(0x7f0000000a00)={0x0, 0x0, &(0x7f0000000a40)={0x0}}, 0x14014)
r0 = socket$netlink(0x10, 0x3, 0x0)
setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r0, 0x10e, 0xc, 0x0, 0x0)
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
openat(0xffffffffffffff9c, 0x0, 0x40, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000040)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
getpid()
sendmsg$TIPC_NL_BEARER_SET(0xffffffffffffffff, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000940)={&(0x7f0000000740)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x20000d0}, 0x44004)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000140)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000200), 0x651, 0x0)
recvmmsg(r1, &(0x7f0000000240), 0x10106, 0x2, 0x0)
r3 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000300)=ANY=[@ANYBLOB="ac00000000010505000000faff0000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff02000000000000009d0000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffac1e00010800074000000001180006801400040000000000000000000000000000000001"], 0xac}}, 0x0)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000400)={&(0x7f00000004c0)=ANY=[@ANYBLOB="c00000000001050500000000000000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff0200000000000000000000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffffffffff08000740010000012c0006801400040000000000000000000000000000000001"], 0xc0}}, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program crashed: KASAN: use-after-free Read in nfsd_svc
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <10>
bisect: split chunk #0 of len 10 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=31s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 16, 2, 5, 16, 5]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000240)='1', 0x1)
executing program 4:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbee2, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0x4e21}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
io_cancel(0x0, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0, 0x3}, 0x0)
r3 = memfd_create(&(0x7f0000000380)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa4q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x00\x98S7\xc9\x00\x00\x00\x00\x00\x00\x00\xf3\xff\x00\x00\x00\x00\xdf8\x9c\xc0T\xd2\xa7\v\x9a\xd2b\x8aL\xdd\x9e\x9d0\xb9\xd8K\x7f\x02\xf0\x19?j\x88l)l\xdbO\x88\r\x9c\xc2\x97m\xe0\xd8\xe4\xaaM4\x92\xca\xd7\x03\x11{\x98-\xb3D\xb8L\a\xdc3\xc8\x19\x9dg\x90\xb5?J\xc8\b=\xc5\b\xd9\x9eG[\xa9\xff]\xdaH\xc1Q\x95T\xfe\x9eRq\xdd[\x90MVb\x122m\xef\xeded#\xaf\xb5\xe3 \x8a\xfa\xf6\xdf\n]KbE\xb7\x9cLL\x93\xe7^\xc7\xde\xd0\xc2\xb5\xfe\v\xc3\xe1\x92[\xdbIq\x81\x00\x9b]\xee\xcbk\"\xdc\x89\x1c\xc3\xa1\x04\xa8\x8fF\xe9y\x0f<\xc0\xac\x06/\x8c\xfcP/\x83\x1f\v\xb8\xf1\xb1T\xdf_\xa1}\xf0)\xb3/_X\x9f\xee\tq\xec\xddG\x82\x95\xfe\x00\x94\xcf\xe1\xbd\x95+\xa4\x95\xf3!\xabu\xe1i', 0x2)
fcntl$addseals(r3, 0x409, 0x7)
r4 = ioctl$UDMABUF_CREATE(0xffffffffffffffff, 0x40187542, &(0x7f0000000000)={r3, 0x0, 0x0, 0x8000})
ioctl$DMA_BUF_IOCTL_SYNC(r4, 0x40086200, &(0x7f0000000080)=0x1)
executing program 2:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000880)={{0x14, 0x10, 0x1, 0x0, 0x0, {0x2}}, [], {0x14, 0x11, 0x1, 0x0, 0x0, {0x2}}}, 0x28}}, 0x0)
executing program 1:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
r0 = syz_ublk_setup_io_uring(0x6ff2, 0x0, &(0x7f00000002c0)=<r1=>0x0, 0x0, &(0x7f0000000340)=<r2=>0x0)
r3 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
syz_io_uring_submit(r1, 0x0, r2, &(0x7f0000000380)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, r3, 0x80, &(0x7f0000000100)=@qipcrtr={0x2a, 0x3}, 0x0, 0x0, 0x1})
syz_ublk_add_dev(r0, r1, 0x0, r2, &(0x7f0000000400)={0x2e, 0x5, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x1, 0x9, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x0, 0x0}}, 0x0)
executing program 0:
sendmsg$NL80211_CMD_GET_STATION(0xffffffffffffffff, &(0x7f0000000a00)={0x0, 0x0, &(0x7f0000000a40)={0x0}}, 0x14014)
r0 = socket$netlink(0x10, 0x3, 0x0)
setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r0, 0x10e, 0xc, 0x0, 0x0)
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
openat(0xffffffffffffff9c, 0x0, 0x40, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000040)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
getpid()
sendmsg$TIPC_NL_BEARER_SET(0xffffffffffffffff, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000940)={&(0x7f0000000740)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x20000d0}, 0x44004)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000140)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000200), 0x651, 0x0)
recvmmsg(r1, &(0x7f0000000240), 0x10106, 0x2, 0x0)
r3 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000300)=ANY=[@ANYBLOB="ac00000000010505000000faff0000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff02000000000000009d0000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffac1e00010800074000000001180006801400040000000000000000000000000000000001"], 0xac}}, 0x0)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000400)={&(0x7f00000004c0)=ANY=[@ANYBLOB="c00000000001050500000000000000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff0200000000000000000000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffffffffff08000740010000012c0006801400040000000000000000000000000000000001"], 0xc0}}, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program crashed: kernel BUG in svc_destroy
bisect: the chunk can be dropped
bisect: testing without sub-chunk 2/2
bisect: no need to test this chunk, it's definitely needed
bisect: split chunks (needed=true): <5>
bisect: split chunk #0 of len 5 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 16, 5]
detailed listing:
executing program 1:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
r0 = syz_ublk_setup_io_uring(0x6ff2, 0x0, &(0x7f00000002c0)=<r1=>0x0, 0x0, &(0x7f0000000340)=<r2=>0x0)
r3 = syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
syz_io_uring_submit(r1, 0x0, r2, &(0x7f0000000380)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, r3, 0x80, &(0x7f0000000100)=@qipcrtr={0x2a, 0x3}, 0x0, 0x0, 0x1})
syz_ublk_add_dev(r0, r1, 0x0, r2, &(0x7f0000000400)={0x2e, 0x5, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x1, 0x9, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x0, 0x0}}, 0x0)
executing program 0:
sendmsg$NL80211_CMD_GET_STATION(0xffffffffffffffff, &(0x7f0000000a00)={0x0, 0x0, &(0x7f0000000a40)={0x0}}, 0x14014)
r0 = socket$netlink(0x10, 0x3, 0x0)
setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r0, 0x10e, 0xc, 0x0, 0x0)
syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
openat(0xffffffffffffff9c, 0x0, 0x40, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000040)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8)
getpid()
sendmsg$TIPC_NL_BEARER_SET(0xffffffffffffffff, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000940)={&(0x7f0000000740)={0x14, 0x0, 0x200, 0x70bd2d, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x20000d0}, 0x44004)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000140)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@file={0x0, './file0\x00'}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000200), 0x651, 0x0)
recvmmsg(r1, &(0x7f0000000240), 0x10106, 0x2, 0x0)
r3 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000300)=ANY=[@ANYBLOB="ac00000000010505000000faff0000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff02000000000000009d0000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffac1e00010800074000000001180006801400040000000000000000000000000000000001"], 0xac}}, 0x0)
sendmsg$IPCTNL_MSG_CT_GET(r3, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000400)={&(0x7f00000004c0)=ANY=[@ANYBLOB="c00000000001050500000000000000000a0000003c0002802c00018014000300ff01000000000000000000000000000114000400ff0200000000000000000000000000010c00028005000100000000003c0001800c00028005000100000000002c00018014000300ff0200000000000000000000000000011400040000000000000000000000ffffffffffff08000740010000012c0006801400040000000000000000000000000000000001"], 0xc0}}, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=31s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 16, 2, 5]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000240)='1', 0x1)
executing program 4:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbee2, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0x4e21}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
io_cancel(0x0, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0, 0x3}, 0x0)
r3 = memfd_create(&(0x7f0000000380)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa4q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x00\x98S7\xc9\x00\x00\x00\x00\x00\x00\x00\xf3\xff\x00\x00\x00\x00\xdf8\x9c\xc0T\xd2\xa7\v\x9a\xd2b\x8aL\xdd\x9e\x9d0\xb9\xd8K\x7f\x02\xf0\x19?j\x88l)l\xdbO\x88\r\x9c\xc2\x97m\xe0\xd8\xe4\xaaM4\x92\xca\xd7\x03\x11{\x98-\xb3D\xb8L\a\xdc3\xc8\x19\x9dg\x90\xb5?J\xc8\b=\xc5\b\xd9\x9eG[\xa9\xff]\xdaH\xc1Q\x95T\xfe\x9eRq\xdd[\x90MVb\x122m\xef\xeded#\xaf\xb5\xe3 \x8a\xfa\xf6\xdf\n]KbE\xb7\x9cLL\x93\xe7^\xc7\xde\xd0\xc2\xb5\xfe\v\xc3\xe1\x92[\xdbIq\x81\x00\x9b]\xee\xcbk\"\xdc\x89\x1c\xc3\xa1\x04\xa8\x8fF\xe9y\x0f<\xc0\xac\x06/\x8c\xfcP/\x83\x1f\v\xb8\xf1\xb1T\xdf_\xa1}\xf0)\xb3/_X\x9f\xee\tq\xec\xddG\x82\x95\xfe\x00\x94\xcf\xe1\xbd\x95+\xa4\x95\xf3!\xabu\xe1i', 0x2)
fcntl$addseals(r3, 0x409, 0x7)
r4 = ioctl$UDMABUF_CREATE(0xffffffffffffffff, 0x40187542, &(0x7f0000000000)={r3, 0x0, 0x0, 0x8000})
ioctl$DMA_BUF_IOCTL_SYNC(r4, 0x40086200, &(0x7f0000000080)=0x1)
executing program 2:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000880)={{0x14, 0x10, 0x1, 0x0, 0x0, {0x2}}, [], {0x14, 0x11, 0x1, 0x0, 0x0, {0x2}}}, 0x28}}, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program crashed: KASAN: use-after-free Read in nfsd_svc
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <3>
bisect: split chunk #0 of len 3 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [2, 5]
detailed listing:
executing program 2:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000880)={{0x14, 0x10, 0x1, 0x0, 0x0, {0x2}}, [], {0x14, 0x11, 0x1, 0x0, 0x0, {0x2}}}, 0x28}}, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 16, 5]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000240)='1', 0x1)
executing program 4:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbee2, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0x4e21}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
io_cancel(0x0, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0, 0x3}, 0x0)
r3 = memfd_create(&(0x7f0000000380)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa4q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x00\x98S7\xc9\x00\x00\x00\x00\x00\x00\x00\xf3\xff\x00\x00\x00\x00\xdf8\x9c\xc0T\xd2\xa7\v\x9a\xd2b\x8aL\xdd\x9e\x9d0\xb9\xd8K\x7f\x02\xf0\x19?j\x88l)l\xdbO\x88\r\x9c\xc2\x97m\xe0\xd8\xe4\xaaM4\x92\xca\xd7\x03\x11{\x98-\xb3D\xb8L\a\xdc3\xc8\x19\x9dg\x90\xb5?J\xc8\b=\xc5\b\xd9\x9eG[\xa9\xff]\xdaH\xc1Q\x95T\xfe\x9eRq\xdd[\x90MVb\x122m\xef\xeded#\xaf\xb5\xe3 \x8a\xfa\xf6\xdf\n]KbE\xb7\x9cLL\x93\xe7^\xc7\xde\xd0\xc2\xb5\xfe\v\xc3\xe1\x92[\xdbIq\x81\x00\x9b]\xee\xcbk\"\xdc\x89\x1c\xc3\xa1\x04\xa8\x8fF\xe9y\x0f<\xc0\xac\x06/\x8c\xfcP/\x83\x1f\v\xb8\xf1\xb1T\xdf_\xa1}\xf0)\xb3/_X\x9f\xee\tq\xec\xddG\x82\x95\xfe\x00\x94\xcf\xe1\xbd\x95+\xa4\x95\xf3!\xabu\xe1i', 0x2)
fcntl$addseals(r3, 0x409, 0x7)
r4 = ioctl$UDMABUF_CREATE(0xffffffffffffffff, 0x40187542, &(0x7f0000000000)={r3, 0x0, 0x0, 0x8000})
ioctl$DMA_BUF_IOCTL_SYNC(r4, 0x40086200, &(0x7f0000000080)=0x1)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program crashed: KASAN: use-after-free Read in nfsd_svc
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <2>
bisect: split chunk #0 of len 2 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [16, 5]
detailed listing:
executing program 4:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000240)=0x7)
sendmsg$nl_route_sched(0xffffffffffffffff, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbee2, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs={0x0, 0x0, 0x4e21}, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
io_cancel(0x0, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0, 0x3}, 0x0)
r3 = memfd_create(&(0x7f0000000380)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa4q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x00\x98S7\xc9\x00\x00\x00\x00\x00\x00\x00\xf3\xff\x00\x00\x00\x00\xdf8\x9c\xc0T\xd2\xa7\v\x9a\xd2b\x8aL\xdd\x9e\x9d0\xb9\xd8K\x7f\x02\xf0\x19?j\x88l)l\xdbO\x88\r\x9c\xc2\x97m\xe0\xd8\xe4\xaaM4\x92\xca\xd7\x03\x11{\x98-\xb3D\xb8L\a\xdc3\xc8\x19\x9dg\x90\xb5?J\xc8\b=\xc5\b\xd9\x9eG[\xa9\xff]\xdaH\xc1Q\x95T\xfe\x9eRq\xdd[\x90MVb\x122m\xef\xeded#\xaf\xb5\xe3 \x8a\xfa\xf6\xdf\n]KbE\xb7\x9cLL\x93\xe7^\xc7\xde\xd0\xc2\xb5\xfe\v\xc3\xe1\x92[\xdbIq\x81\x00\x9b]\xee\xcbk\"\xdc\x89\x1c\xc3\xa1\x04\xa8\x8fF\xe9y\x0f<\xc0\xac\x06/\x8c\xfcP/\x83\x1f\v\xb8\xf1\xb1T\xdf_\xa1}\xf0)\xb3/_X\x9f\xee\tq\xec\xddG\x82\x95\xfe\x00\x94\xcf\xe1\xbd\x95+\xa4\x95\xf3!\xabu\xe1i', 0x2)
fcntl$addseals(r3, 0x409, 0x7)
r4 = ioctl$UDMABUF_CREATE(0xffffffffffffffff, 0x40187542, &(0x7f0000000000)={r3, 0x0, 0x0, 0x8000})
ioctl$DMA_BUF_IOCTL_SYNC(r4, 0x40086200, &(0x7f0000000080)=0x1)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000240)='1', 0x1)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program crashed: KASAN: use-after-free Read in nfsd_svc
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <1>
bisect: split chunk #0 of len 1 into 2 parts
bisect: no way to further split the chunk
bisect: 2 programs left: 

executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000240)='1', 0x1)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)


bisect: trying to concatenate
bisect: concatenate 2 entries
minimizing program #0 before concatenation
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 5]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program crashed: KASAN: use-after-free Read in nfsd_svc
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 5]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 5]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 5]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 5]
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r0, &(0x7f0000000240)='1', 0x1)

program did not crash
minimized 5 calls -> 4 calls
minimizing program #1 before concatenation
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 3]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 2]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 1]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 0]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)
executing program 0:

program crashed: kernel BUG in svc_destroy
minimized 5 calls -> 0 calls
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program crashed: kernel BUG in svc_destroy
bisect: concatenation succeeded
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f00000001c0)='tcp 2', 0x5)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
simplifying C reproducer
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./nfsd\x00', &(0x7f0000000140)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2', 0x5)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
reproducing took 47m53.28217626s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at net/sunrpc/svc.c:605!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4538 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : svc_destroy+0x178/0x184 net/sunrpc/svc.c:605
lr : svc_destroy+0x178/0x184 net/sunrpc/svc.c:605
sp : ffff800022057930
x29: ffff800022057930 x28: 1fffe0001a5f8edf x27: ffff0000c7505400
x26: dfff800000000000 x25: ffff70000440af2c x24: ffff800022057960
x23: ffff0000dd491140 x22: dfff800000000000 x21: 0000000000000001
x20: ffff0000cce9ec68 x19: ffff0000cce9ec50 x18: 1fffe00033c1877e
x17: ffff80001641d000 x16: ffff8000082dd38c x15: 000000000004ffff
x14: 0000000000000001 x13: 1fffe00033c188f0 x12: 0000000000000000
x11: ff00800010f3f328 x10: 0000000000000000 x9 : ffff800010f3f328
x8 : ffff0000c7505400 x7 : ffff8000083bb394 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 svc_destroy+0x178/0x184 net/sunrpc/svc.c:605
 kref_put include/linux/kref.h:65 [inline]
 svc_put include/linux/sunrpc/svc.h:123 [inline]
 __write_ports_addxprt fs/nfsd/nfsctl.c:768 [inline]
 __write_ports fs/nfsd/nfsctl.c:794 [inline]
 write_ports+0x850/0x9f0 fs/nfsd/nfsctl.c:847
 nfsctl_transaction_write+0x114/0x164 fs/nfsd/nfsctl.c:114
 vfs_write+0x2a8/0x7c8 fs/read_write.c:582
 ksys_write+0x12c/0x228 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 91026260 97c2d040 17ffffc8 97c2cfd6 (d4210000) 
---[ end trace 0000000000000000 ]---

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at net/sunrpc/svc.c:605!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4538 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : svc_destroy+0x178/0x184 net/sunrpc/svc.c:605
lr : svc_destroy+0x178/0x184 net/sunrpc/svc.c:605
sp : ffff800022057930
x29: ffff800022057930 x28: 1fffe0001a5f8edf x27: ffff0000c7505400
x26: dfff800000000000 x25: ffff70000440af2c x24: ffff800022057960
x23: ffff0000dd491140 x22: dfff800000000000 x21: 0000000000000001
x20: ffff0000cce9ec68 x19: ffff0000cce9ec50 x18: 1fffe00033c1877e
x17: ffff80001641d000 x16: ffff8000082dd38c x15: 000000000004ffff
x14: 0000000000000001 x13: 1fffe00033c188f0 x12: 0000000000000000
x11: ff00800010f3f328 x10: 0000000000000000 x9 : ffff800010f3f328
x8 : ffff0000c7505400 x7 : ffff8000083bb394 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 svc_destroy+0x178/0x184 net/sunrpc/svc.c:605
 kref_put include/linux/kref.h:65 [inline]
 svc_put include/linux/sunrpc/svc.h:123 [inline]
 __write_ports_addxprt fs/nfsd/nfsctl.c:768 [inline]
 __write_ports fs/nfsd/nfsctl.c:794 [inline]
 write_ports+0x850/0x9f0 fs/nfsd/nfsctl.c:847
 nfsctl_transaction_write+0x114/0x164 fs/nfsd/nfsctl.c:114
 vfs_write+0x2a8/0x7c8 fs/read_write.c:582
 ksys_write+0x12c/0x228 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 91026260 97c2d040 17ffffc8 97c2cfd6 (d4210000) 
---[ end trace 0000000000000000 ]---