Extracting prog: 1m3.274110193s
Minimizing prog: 58m32.394223628s
Simplifying prog options: 3m53.424787561s
Extracting C: 2m23.903622746s
Simplifying C: 0s


extracting reproducer from 63 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_RESOLVE_IP-write$RDMA_USER_CM_CMD_JOIN_IP_MCAST-socket$nl_netfilter-bpf$MAP_CREATE-sendmsg$IPSET_CMD_CREATE-openat$binderfs-ioctl$BINDER_FREEZE-getsockopt$inet_sctp_SCTP_RECONFIG_SUPPORTED
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_RESOLVE_IP(r3, &(0x7f0000000100)={0x3, 0x40, 0xfa00, {{0xa, 0x9, 0x0, @loopback, 0x20}, {0xa, 0x0, 0xfffffffe, @dev={0xfe, 0x80, '\x00', 0x1c}}, 0xffffffffffffffff, 0x99d}}, 0x48)
write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(r3, 0x0, 0x0)
socket$nl_netfilter(0x10, 0x3, 0xc)
bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0e000000000100"/16, @ANYRES32=0x0, @ANYBLOB="0100"/14, @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB='\x00'/28], 0x50)
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000540)=ANY=[@ANYBLOB="4400000002060108000034e40000000000000000050001000600000005000400000000000900020073797a310025c5d6609500"], 0x44}}, 0x2)
r4 = openat$binderfs(0xffffffffffffff9c, 0x0, 0x2, 0x0)
ioctl$BINDER_FREEZE(r4, 0x400c620e, 0x0)
getsockopt$inet_sctp_SCTP_RECONFIG_SUPPORTED(0xffffffffffffffff, 0x84, 0x75, 0x0, 0x0)

program crashed: KASAN: use-after-free Read in dvb_device_open
single: successfully extracted reproducer
found reproducer with 24 syscalls
minimizing guilty program
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_RESOLVE_IP-write$RDMA_USER_CM_CMD_JOIN_IP_MCAST-socket$nl_netfilter-bpf$MAP_CREATE-sendmsg$IPSET_CMD_CREATE-openat$binderfs-ioctl$BINDER_FREEZE
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_RESOLVE_IP(r3, &(0x7f0000000100)={0x3, 0x40, 0xfa00, {{0xa, 0x9, 0x0, @loopback, 0x20}, {0xa, 0x0, 0xfffffffe, @dev={0xfe, 0x80, '\x00', 0x1c}}, 0xffffffffffffffff, 0x99d}}, 0x48)
write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(r3, 0x0, 0x0)
socket$nl_netfilter(0x10, 0x3, 0xc)
bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0e000000000100"/16, @ANYRES32=0x0, @ANYBLOB="0100"/14, @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB='\x00'/28], 0x50)
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000540)=ANY=[@ANYBLOB="4400000002060108000034e40000000000000000050001000600000005000400000000000900020073797a310025c5d6609500"], 0x44}}, 0x2)
r4 = openat$binderfs(0xffffffffffffff9c, 0x0, 0x2, 0x0)
ioctl$BINDER_FREEZE(r4, 0x400c620e, 0x0)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_RESOLVE_IP-write$RDMA_USER_CM_CMD_JOIN_IP_MCAST-socket$nl_netfilter-bpf$MAP_CREATE-sendmsg$IPSET_CMD_CREATE-openat$binderfs
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_RESOLVE_IP(r3, &(0x7f0000000100)={0x3, 0x40, 0xfa00, {{0xa, 0x9, 0x0, @loopback, 0x20}, {0xa, 0x0, 0xfffffffe, @dev={0xfe, 0x80, '\x00', 0x1c}}, 0xffffffffffffffff, 0x99d}}, 0x48)
write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(r3, 0x0, 0x0)
socket$nl_netfilter(0x10, 0x3, 0xc)
bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0e000000000100"/16, @ANYRES32=0x0, @ANYBLOB="0100"/14, @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB='\x00'/28], 0x50)
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000540)=ANY=[@ANYBLOB="4400000002060108000034e40000000000000000050001000600000005000400000000000900020073797a310025c5d6609500"], 0x44}}, 0x2)
openat$binderfs(0xffffffffffffff9c, 0x0, 0x2, 0x0)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_RESOLVE_IP-write$RDMA_USER_CM_CMD_JOIN_IP_MCAST-socket$nl_netfilter-bpf$MAP_CREATE-sendmsg$IPSET_CMD_CREATE
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_RESOLVE_IP(r3, &(0x7f0000000100)={0x3, 0x40, 0xfa00, {{0xa, 0x9, 0x0, @loopback, 0x20}, {0xa, 0x0, 0xfffffffe, @dev={0xfe, 0x80, '\x00', 0x1c}}, 0xffffffffffffffff, 0x99d}}, 0x48)
write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(r3, 0x0, 0x0)
socket$nl_netfilter(0x10, 0x3, 0xc)
bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0e000000000100"/16, @ANYRES32=0x0, @ANYBLOB="0100"/14, @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB='\x00'/28], 0x50)
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000540)=ANY=[@ANYBLOB="4400000002060108000034e40000000000000000050001000600000005000400000000000900020073797a310025c5d6609500"], 0x44}}, 0x2)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_RESOLVE_IP-write$RDMA_USER_CM_CMD_JOIN_IP_MCAST-socket$nl_netfilter-bpf$MAP_CREATE
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_RESOLVE_IP(r3, &(0x7f0000000100)={0x3, 0x40, 0xfa00, {{0xa, 0x9, 0x0, @loopback, 0x20}, {0xa, 0x0, 0xfffffffe, @dev={0xfe, 0x80, '\x00', 0x1c}}, 0xffffffffffffffff, 0x99d}}, 0x48)
write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(r3, 0x0, 0x0)
socket$nl_netfilter(0x10, 0x3, 0xc)
bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0e000000000100"/16, @ANYRES32=0x0, @ANYBLOB="0100"/14, @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB='\x00'/28], 0x50)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_RESOLVE_IP-write$RDMA_USER_CM_CMD_JOIN_IP_MCAST-socket$nl_netfilter
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_RESOLVE_IP(r3, &(0x7f0000000100)={0x3, 0x40, 0xfa00, {{0xa, 0x9, 0x0, @loopback, 0x20}, {0xa, 0x0, 0xfffffffe, @dev={0xfe, 0x80, '\x00', 0x1c}}, 0xffffffffffffffff, 0x99d}}, 0x48)
write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(r3, 0x0, 0x0)
socket$nl_netfilter(0x10, 0x3, 0xc)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_RESOLVE_IP-write$RDMA_USER_CM_CMD_JOIN_IP_MCAST
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_RESOLVE_IP(r3, &(0x7f0000000100)={0x3, 0x40, 0xfa00, {{0xa, 0x9, 0x0, @loopback, 0x20}, {0xa, 0x0, 0xfffffffe, @dev={0xfe, 0x80, '\x00', 0x1c}}, 0xffffffffffffffff, 0x99d}}, 0x48)
write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(r3, 0x0, 0x0)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID-write$RDMA_USER_CM_CMD_RESOLVE_IP
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)
write$RDMA_USER_CM_CMD_RESOLVE_IP(r3, &(0x7f0000000100)={0x3, 0x40, 0xfa00, {{0xa, 0x9, 0x0, @loopback, 0x20}, {0xa, 0x0, 0xfffffffe, @dev={0xfe, 0x80, '\x00', 0x1c}}, 0xffffffffffffffff, 0x99d}}, 0x48)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm-write$RDMA_USER_CM_CMD_CREATE_ID
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)
write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000005c0)={0x0, 0x18, 0xfa00, {0x4, 0x0, 0x2, 0x2}}, 0x20)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp-openat$rdma_cm
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)
openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000001400), 0x2, 0x0)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp-syz_genetlink_get_family_id$l2tp
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)
syz_genetlink_get_family_id$l2tp(&(0x7f00000008c0), 0xffffffffffffffff)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP-socket$inet6_udp
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)
socket$inet6_udp(0xa, 0x2, 0x0)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY-prctl$PR_SET_MM_MAP
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
r0 = syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r1 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r1, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r2 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r2, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000003000/0x3000)=nil, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000000000/0x4000)=nil, &(0x7f0000000000/0x1000)=nil, &(0x7f0000ff7000/0x1000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffd000/0x2000)=nil, &(0x7f0000ff9000/0x2000)=nil, 0x0, 0x0, r0}, 0x68)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend-ioctl$FE_SET_PROPERTY
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
r1 = syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)
ioctl$FE_SET_PROPERTY(r1, 0x40106f52, &(0x7f0000000100)={0x3, &(0x7f0000000580)=[{0x22, '\x00', @buffer={"5c8310ef19d98ae6b20542f8a6cdd93f8f9fd237ff1bccb2835c73657287807e", 0x20}, 0xe6}, {0x25, '\x00', @st={0x4, [{0x2, @svalue=0x100}, {0x0, @uvalue=0x5}, {0x0, @uvalue=0x1}, {0x2, @svalue=0x80000001}]}, 0x4}, {0x9, '\x00', @buffer={"556074847dff3ec92fd15c5a5ab6e820b94f2a1ade3e311b88351c3481518fff", 0x20}, 0x409}]})

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-writev
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-syz_open_dev$sndmidi-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-openat$sequencer-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
syz_open_procfs$namespace(0x0, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
writev(0xffffffffffffffff, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-syz_open_procfs$namespace-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
syz_open_procfs$namespace(0x0, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-sched_setscheduler-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
sched_setscheduler(0x0, 0x1, &(0x7f0000000200)=0x5)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-setrlimit-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
setrlimit(0xe, &(0x7f0000000340)={0x81, 0x1178})
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-prlimit64-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000380)={0x8, 0x100008b}, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-prctl$PR_SCHED_CORE-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_frontend_release
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_device_open
testing program (duration=1m35.718219592s, {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}}): openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, 0x0, 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(0x0, 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, 0x0, 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{0x0}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(0x0, 0x0, 0x2)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
program did not crash
simplifying guilty program options
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {Threaded:true 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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
validation run: crashed=false
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program did not crash
validation run: crashed=false
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_frontend_release
validation run: crashed=true
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_device_open
validation run: crashed=true
testing program (duration=1m35.718219592s, {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}}): mmap$IORING_OFF_SQ_RING-openat$sequencer-syz_open_dev$sndmidi-writev-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$sequencer(0xffffffffffffff9c, &(0x7f0000000640), 0x80200, 0x0)
r0 = syz_open_dev$sndmidi(&(0x7f00000004c0), 0x2, 0x141102)
writev(r0, &(0x7f0000000840)=[{&(0x7f00000002c0)="94", 0xf000}, {0x0}], 0x2)
syz_open_dev$dvb_frontend(&(0x7f0000000080), 0x0, 0x2)

program crashed: KASAN: use-after-free Read in dvb_frontend_release
validation run: crashed=true
reproducing took 1h16m52.32676195s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in dvb_frontend_release+0x3f5/0x490 drivers/media/dvb-core/dvb_frontend.c:2900
Read of size 4 at addr ffff888029e86a3c by task syz.1.338/5584

CPU: 1 PID: 5584 Comm: syz.1.338 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0xa8/0x210 mm/kasan/report.c:420
 kasan_report+0x10b/0x140 mm/kasan/report.c:524
 dvb_frontend_release+0x3f5/0x490 drivers/media/dvb-core/dvb_frontend.c:2900
 __fput+0x20a/0x8b0 fs/file_table.c:320
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213
 __syscall_exit_to_user_mode_work kernel/entry/common.c:295 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:306
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe672d9e1d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffa13f0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fe673027da0 RCX: 00007fe672d9e1d9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fe673027da0 R08: 00007fe673026128 R09: 0000000000000000
R10: 000000000003fdb8 R11: 0000000000000246 R12: 0000000000034286
R13: 00007fe67302609c R14: 0000000000033fbd R15: 00007fffa13f0c50
 </TASK>

Allocated by task 1:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 dvb_register_device+0x305/0x1dc0 drivers/media/dvb-core/dvbdev.c:478
 dvb_register_frontend+0x629/0x900 drivers/media/dvb-core/dvb_frontend.c:3035
 vidtv_bridge_dvb_init drivers/media/test-drivers/vidtv/vidtv_bridge.c:438 [inline]
 vidtv_bridge_probe+0x9cf/0xf50 drivers/media/test-drivers/vidtv/vidtv_bridge.c:510
 platform_probe+0x137/0x1c0 drivers/base/platform.c:1400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __driver_attach+0x43d/0x6c0 drivers/base/dd.c:1220
 bus_for_each_dev+0x182/0x1f0 drivers/base/bus.c:303
 bus_add_driver+0x324/0x5d0 drivers/base/bus.c:620
 driver_register+0x32d/0x430 drivers/base/driver.c:246
 vidtv_bridge_init+0x45/0x73 drivers/media/test-drivers/vidtv/vidtv_bridge.c:604
 do_one_initcall+0x257/0x800 init/main.c:1271
 do_initcall_level+0x13d/0x1ed init/main.c:1344
 do_initcalls+0x4b/0x8a init/main.c:1360
 kernel_init_freeable+0x401/0x5ab init/main.c:1599
 kernel_init+0x19/0x1b0 init/main.c:1487
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Freed by task 5584:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1f0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x133/0x1b0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 __kmem_cache_free+0xb6/0x200 mm/slub.c:3700
 dvb_free_device drivers/media/dvb-core/dvbdev.c:625 [inline]
 kref_put include/linux/kref.h:65 [inline]
 dvb_device_put drivers/media/dvb-core/dvbdev.c:640 [inline]
 dvb_generic_release+0x11c/0x1b0 drivers/media/dvb-core/dvbdev.c:173
 dvb_frontend_release+0x131/0x490 drivers/media/dvb-core/dvb_frontend.c:2898
 __fput+0x20a/0x8b0 fs/file_table.c:320
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213
 __syscall_exit_to_user_mode_work kernel/entry/common.c:295 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:306
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888029e86a00
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 60 bytes inside of
 256-byte region [ffff888029e86a00, ffff888029e86b00)

The buggy address belongs to the physical page:
page:ffffea0000a7a180 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29e86
head:ffffea0000a7a180 order:1 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888018441b40
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 19009683250, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2560
 prep_new_page mm/page_alloc.c:2567 [inline]
 get_page_from_freelist+0x206b/0x2180 mm/page_alloc.c:4358
 __alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5658
 alloc_page_interleave+0x24/0x1e0 mm/mempolicy.c:2115
 alloc_slab_page+0x5d/0x180 mm/slub.c:1799
 allocate_slab mm/slub.c:1944 [inline]
 new_slab+0x87/0x2d0 mm/slub.c:1997
 ___slab_alloc+0xbc5/0x1240 mm/slub.c:3154
 __slab_alloc mm/slub.c:3240 [inline]
 slab_alloc_node mm/slub.c:3325 [inline]
 __kmem_cache_alloc_node+0x126/0x270 mm/slub.c:3398
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 bus_add_driver+0xdc/0x5d0 drivers/base/bus.c:604
 driver_register+0x32d/0x430 drivers/base/driver.c:246
 usb_register_driver+0x1a6/0x350 drivers/usb/core/driver.c:1064
 do_one_initcall+0x257/0x800 init/main.c:1271
 do_initcall_level+0x13d/0x1ed init/main.c:1344
 do_initcalls+0x4b/0x8a init/main.c:1360
 kernel_init_freeable+0x401/0x5ab init/main.c:1599
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888029e86900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888029e86980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888029e86a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff888029e86a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888029e86b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in dvb_frontend_release+0x3f5/0x490 drivers/media/dvb-core/dvb_frontend.c:2900
Read of size 4 at addr ffff888029e86a3c by task syz.1.338/5584

CPU: 1 PID: 5584 Comm: syz.1.338 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0xa8/0x210 mm/kasan/report.c:420
 kasan_report+0x10b/0x140 mm/kasan/report.c:524
 dvb_frontend_release+0x3f5/0x490 drivers/media/dvb-core/dvb_frontend.c:2900
 __fput+0x20a/0x8b0 fs/file_table.c:320
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213
 __syscall_exit_to_user_mode_work kernel/entry/common.c:295 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:306
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe672d9e1d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffa13f0b48 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fe673027da0 RCX: 00007fe672d9e1d9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fe673027da0 R08: 00007fe673026128 R09: 0000000000000000
R10: 000000000003fdb8 R11: 0000000000000246 R12: 0000000000034286
R13: 00007fe67302609c R14: 0000000000033fbd R15: 00007fffa13f0c50
 </TASK>

Allocated by task 1:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8e/0xa0 mm/kasan/common.c:384
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 dvb_register_device+0x305/0x1dc0 drivers/media/dvb-core/dvbdev.c:478
 dvb_register_frontend+0x629/0x900 drivers/media/dvb-core/dvb_frontend.c:3035
 vidtv_bridge_dvb_init drivers/media/test-drivers/vidtv/vidtv_bridge.c:438 [inline]
 vidtv_bridge_probe+0x9cf/0xf50 drivers/media/test-drivers/vidtv/vidtv_bridge.c:510
 platform_probe+0x137/0x1c0 drivers/base/platform.c:1400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __driver_attach+0x43d/0x6c0 drivers/base/dd.c:1220
 bus_for_each_dev+0x182/0x1f0 drivers/base/bus.c:303
 bus_add_driver+0x324/0x5d0 drivers/base/bus.c:620
 driver_register+0x32d/0x430 drivers/base/driver.c:246
 vidtv_bridge_init+0x45/0x73 drivers/media/test-drivers/vidtv/vidtv_bridge.c:604
 do_one_initcall+0x257/0x800 init/main.c:1271
 do_initcall_level+0x13d/0x1ed init/main.c:1344
 do_initcalls+0x4b/0x8a init/main.c:1360
 kernel_init_freeable+0x401/0x5ab init/main.c:1599
 kernel_init+0x19/0x1b0 init/main.c:1487
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Freed by task 5584:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x126/0x1f0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1729 [inline]
 slab_free_freelist_hook+0x133/0x1b0 mm/slub.c:1755
 slab_free mm/slub.c:3687 [inline]
 __kmem_cache_free+0xb6/0x200 mm/slub.c:3700
 dvb_free_device drivers/media/dvb-core/dvbdev.c:625 [inline]
 kref_put include/linux/kref.h:65 [inline]
 dvb_device_put drivers/media/dvb-core/dvbdev.c:640 [inline]
 dvb_generic_release+0x11c/0x1b0 drivers/media/dvb-core/dvbdev.c:173
 dvb_frontend_release+0x131/0x490 drivers/media/dvb-core/dvb_frontend.c:2898
 __fput+0x20a/0x8b0 fs/file_table.c:320
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213
 __syscall_exit_to_user_mode_work kernel/entry/common.c:295 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:306
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888029e86a00
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 60 bytes inside of
 256-byte region [ffff888029e86a00, ffff888029e86b00)

The buggy address belongs to the physical page:
page:ffffea0000a7a180 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x29e86
head:ffffea0000a7a180 order:1 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888018441b40
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 19009683250, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2560
 prep_new_page mm/page_alloc.c:2567 [inline]
 get_page_from_freelist+0x206b/0x2180 mm/page_alloc.c:4358
 __alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5658
 alloc_page_interleave+0x24/0x1e0 mm/mempolicy.c:2115
 alloc_slab_page+0x5d/0x180 mm/slub.c:1799
 allocate_slab mm/slub.c:1944 [inline]
 new_slab+0x87/0x2d0 mm/slub.c:1997
 ___slab_alloc+0xbc5/0x1240 mm/slub.c:3154
 __slab_alloc mm/slub.c:3240 [inline]
 slab_alloc_node mm/slub.c:3325 [inline]
 __kmem_cache_alloc_node+0x126/0x270 mm/slub.c:3398
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 bus_add_driver+0xdc/0x5d0 drivers/base/bus.c:604
 driver_register+0x32d/0x430 drivers/base/driver.c:246
 usb_register_driver+0x1a6/0x350 drivers/usb/core/driver.c:1064
 do_one_initcall+0x257/0x800 init/main.c:1271
 do_initcall_level+0x13d/0x1ed init/main.c:1344
 do_initcalls+0x4b/0x8a init/main.c:1360
 kernel_init_freeable+0x401/0x5ab init/main.c:1599
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888029e86900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888029e86980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888029e86a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                        ^
 ffff888029e86a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888029e86b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================