Extracting prog: 2m3.332555451s
Minimizing prog: 16m44.285008933s
Simplifying prog options: 0s
Extracting C: 38.728761745s
Simplifying C: 3m5.82710963s


extracting reproducer from 55 programs
testing a last program of every proc
single: executing 13 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): io_setup-mmap$IORING_OFF_SQ_RING-openat$kvm-setresuid-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-fsconfig$FSCONFIG_CMD_CREATE-socket-setsockopt$netlink_NETLINK_TX_RING-syz_emit_ethernet-madvise-mkdir-mremap-setpriority-timer_create-fcntl$lock-mprotect-timer_settime-sendmsg$IPCTNL_MSG_CT_NEW-mmap-mmap$IORING_OFF_SQ_RING-mmap-mremap-syz_mount_image$ext4-prctl$PR_SET_UNALIGN-madvise-clock_gettime-syz_create_resource$futex-futex-futex
detailed listing:
executing program 0:
io_setup(0x482, &(0x7f0000000100))
mmap$IORING_OFF_SQ_RING(0xc00000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000400), 0x0, 0x0)
setresuid(0xee00, 0xee00, 0x0)
r0 = ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x1)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r0, &(0x7f000033d000/0x18000)=nil, &(0x7f0000000440)=[@text32={0x20, 0x0}], 0x1, 0x10, 0x0, 0x0)
fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
r1 = socket(0x15, 0x3, 0x1)
setsockopt$netlink_NETLINK_TX_RING(r1, 0x10e, 0xc, 0x0, 0x0)
syz_emit_ethernet(0x9f, &(0x7f0000000480)={@empty, @broadcast, @void, {@x25={0x805, {0x2, 0x7, 0xfd, "d6f2ab11e77e079829aadc49b80032884116e77f9217e0d70a174eac09bf347268ae079e8d2bba5ecdd71ac2a21e71828be83a84d4bb0561b3134084ef5a856bc8e5ae4a31c584ec09421ef12100a0668e9612b4036b61a7061f5472745bfa82164b27fb57b4ce5ead45cc19d2b6a0dd573960c6fd44a5b5df4c862be981d5987f32cae20c84d3900e0719040d2a"}}}}, 0x0)
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
mkdir(&(0x7f0000000140)='./cgroup/../file0\x00', 0x161)
mremap(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0x400000, 0x3, &(0x7f0000c00000/0x400000)=nil)
setpriority(0x0, 0x0, 0x2a14b58)
timer_create(0x7, &(0x7f00000000c0)={0x0, 0x1d}, &(0x7f0000000300))
fcntl$lock(0xffffffffffffffff, 0x2, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff})
mprotect(&(0x7f00008b0000/0x3000)=nil, 0x3000, 0x1000002)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x0, 0x3938700}}, 0x0)
sendmsg$IPCTNL_MSG_CT_NEW(0xffffffffffffffff, 0x0, 0x0)
mmap(&(0x7f0000001000/0xc00000)=nil, 0xc00000, 0x0, 0xf132, 0xffffffffffffffff, 0x0)
mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x5d0b40cba755cd46, 0x4008032, 0xffffffffffffffff, 0x17177000)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x1000, 0x3, &(0x7f0000fff000/0x1000)=nil)
syz_mount_image$ext4(&(0x7f0000000180)='ext2\x00', &(0x7f0000000540)='./bus\x00', 0x38880, &(0x7f0000000280), 0x1, 0x51a, &(0x7f0000000f00)="$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")
prctl$PR_SET_UNALIGN(0x6, 0x1)
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x15)
clock_gettime(0x0, &(0x7f0000000200))
r2 = syz_create_resource$futex(&(0x7f0000000340)=0x1)
futex(r2, 0x9, 0x1, 0x0, 0x0, 0x1)
futex(r2, 0x9, 0x1, 0x0, r2, 0x2)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-sendmsg$unix-socketpair$unix-sendmmsg$unix-recvmmsg$unix-bpf$BPF_PROG_TEST_RUN-syz_clone3-ioctl$EXT4_IOC_GETFSUUID-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={<r4=>0xffffffffffffffff, <r5=>0xffffffffffffffff})
sendmsg$unix(r4, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=ANY=[@ANYBLOB="14000000000000000100000001000000", @ANYRES32=r5], 0x18, 0x4000840}, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000400)={<r6=>0xffffffffffffffff, <r7=>0xffffffffffffffff})
sendmmsg$unix(r7, &(0x7f0000000440)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)=ANY=[], 0x18, 0x20000010}}], 0x1, 0x40)
recvmmsg$unix(r6, &(0x7f00000004c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x100, 0x0)
bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000280)={r3, 0x18000000000002a0, 0xe, 0x0, &(0x7f0000000300)="76ea090000000000009ba56a88ca", 0x0, 0x6400, 0x60000000, 0x0, 0x0, 0x0, 0x0}, 0x7f)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r8=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r8, 0x40047452, 0x0)
ioctl$FS_IOC_SETFLAGS(r8, 0x40086602, &(0x7f0000000000)=0x4000)

program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work
single: successfully extracted reproducer
found reproducer with 16 syscalls
minimizing guilty program
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-sendmsg$unix-socketpair$unix-sendmmsg$unix-recvmmsg$unix-bpf$BPF_PROG_TEST_RUN-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={<r4=>0xffffffffffffffff, <r5=>0xffffffffffffffff})
sendmsg$unix(r4, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=ANY=[@ANYBLOB="14000000000000000100000001000000", @ANYRES32=r5], 0x18, 0x4000840}, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000400)={<r6=>0xffffffffffffffff, <r7=>0xffffffffffffffff})
sendmmsg$unix(r7, &(0x7f0000000440)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)=ANY=[], 0x18, 0x20000010}}], 0x1, 0x40)
recvmmsg$unix(r6, &(0x7f00000004c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x100, 0x0)
bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000280)={r3, 0x18000000000002a0, 0xe, 0x0, &(0x7f0000000300)="76ea090000000000009ba56a88ca", 0x0, 0x6400, 0x60000000, 0x0, 0x0, 0x0, 0x0}, 0x7f)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r8=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r8, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Write in pppol2tp_release
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-sendmsg$unix-socketpair$unix-sendmmsg$unix-recvmmsg$unix-bpf$BPF_PROG_TEST_RUN-syz_clone3
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={<r4=>0xffffffffffffffff, <r5=>0xffffffffffffffff})
sendmsg$unix(r4, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=ANY=[@ANYBLOB="14000000000000000100000001000000", @ANYRES32=r5], 0x18, 0x4000840}, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000400)={<r6=>0xffffffffffffffff, <r7=>0xffffffffffffffff})
sendmmsg$unix(r7, &(0x7f0000000440)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)=ANY=[], 0x18, 0x20000010}}], 0x1, 0x40)
recvmmsg$unix(r6, &(0x7f00000004c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x100, 0x0)
bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000280)={r3, 0x18000000000002a0, 0xe, 0x0, &(0x7f0000000300)="76ea090000000000009ba56a88ca", 0x0, 0x6400, 0x60000000, 0x0, 0x0, 0x0, 0x0}, 0x7f)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040), 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-sendmsg$unix-socketpair$unix-sendmmsg$unix-recvmmsg$unix-bpf$BPF_PROG_TEST_RUN-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={<r4=>0xffffffffffffffff, <r5=>0xffffffffffffffff})
sendmsg$unix(r4, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=ANY=[@ANYBLOB="14000000000000000100000001000000", @ANYRES32=r5], 0x18, 0x4000840}, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000400)={<r6=>0xffffffffffffffff, <r7=>0xffffffffffffffff})
sendmmsg$unix(r7, &(0x7f0000000440)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)=ANY=[], 0x18, 0x20000010}}], 0x1, 0x40)
recvmmsg$unix(r6, &(0x7f00000004c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x100, 0x0)
bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000280)={r3, 0x18000000000002a0, 0xe, 0x0, &(0x7f0000000300)="76ea090000000000009ba56a88ca", 0x0, 0x6400, 0x60000000, 0x0, 0x0, 0x0, 0x0}, 0x7f)
ioctl$EXT4_IOC_GETFSUUID(0xffffffffffffffff, 0x40047452, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-sendmsg$unix-socketpair$unix-sendmmsg$unix-recvmmsg$unix-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
sendmsg$unix(r3, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=ANY=[@ANYBLOB="14000000000000000100000001000000", @ANYRES32=r4], 0x18, 0x4000840}, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000400)={<r5=>0xffffffffffffffff, <r6=>0xffffffffffffffff})
sendmmsg$unix(r6, &(0x7f0000000440)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)=ANY=[], 0x18, 0x20000010}}], 0x1, 0x40)
recvmmsg$unix(r5, &(0x7f00000004c0)=[{{0x0, 0x0, 0x0}}], 0x1, 0x100, 0x0)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r7=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r7, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-sendmsg$unix-socketpair$unix-sendmmsg$unix-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
sendmsg$unix(r3, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=ANY=[@ANYBLOB="14000000000000000100000001000000", @ANYRES32=r4], 0x18, 0x4000840}, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000400)={0xffffffffffffffff, <r5=>0xffffffffffffffff})
sendmmsg$unix(r5, &(0x7f0000000440)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)=ANY=[], 0x18, 0x20000010}}], 0x1, 0x40)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r6=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r6, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-sendmsg$unix-socketpair$unix-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
sendmsg$unix(r3, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=ANY=[@ANYBLOB="14000000000000000100000001000000", @ANYRES32=r4], 0x18, 0x4000840}, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000400))
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r5=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r5, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Write in pppol2tp_release
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-sendmsg$unix-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={<r3=>0xffffffffffffffff, <r4=>0xffffffffffffffff})
sendmsg$unix(r3, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000140)=ANY=[@ANYBLOB="14000000000000000100000001000000", @ANYRES32=r4], 0x18, 0x4000840}, 0x0)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r5=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r5, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Write in pppol2tp_release
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-socketpair$unix-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0))
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r3=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r3, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-bpf$PROG_LOAD-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
r2 = bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
bpf$PROG_LOAD(0x5, &(0x7f0000000340)={0xc, 0xc, &(0x7f0000000180)=@framed={{0x18, 0x0, 0x0, 0x0, 0x14, 0x0, 0x0, 0x0, 0x2ffff}, [@ringbuf_output={{0x18, 0x5, 0x1, 0x0, r2}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x80080000}, {0x3, 0x3, 0x3, 0xa, 0x5}, {}, {}, {}, {0x7, 0x0, 0xb, 0x4, 0x0, 0x0, 0x6fc938d1eb9f2722}, {0x85, 0x0, 0x0, 0x15}}]}, &(0x7f0000000200)='syzkaller\x00', 0x0, 0x0, 0x0, 0x40f00, 0x0, '\x00', 0x0, @fallback=0x20, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r3=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r3, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Write in pppol2tp_release
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-bpf$MAP_CREATE-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="1b00000000000000000000000080"], 0x50)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-bpf$ENABLE_STATS-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
bpf$ENABLE_STATS(0x20, 0x0, 0x0)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Write in pppol2tp_release
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
socket$pppl2tp(0x18, 0x1, 0x1)
r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendfile(0xffffffffffffffff, r0, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r1=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r1, 0x40047452, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r1=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r1, 0x40047452, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(0xffffffffffffffff, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r0, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r0, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r1=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r1, 0x40047452, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, 0x0, 0x0)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, 0x0, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(0x0, 0x0)
ioctl$EXT4_IOC_GETFSUUID(0xffffffffffffffff, 0x40047452, 0x0)

program did not crash
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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(0xffffffffffffffff, 0x40047452, 0x0)

program did not crash
extracting C reproducer
testing compiled C 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
simplifying C reproducer
testing compiled C program (duration=30s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
testing compiled C program (duration=30s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
testing compiled C program (duration=30s, {Threaded:false Repeat:false 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}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
testing compiled C program (duration=30s, {Threaded:false Repeat:false 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}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
testing compiled C program (duration=30s, {Threaded:false Repeat:false 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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
testing compiled C program (duration=30s, {Threaded:false Repeat:false 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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
testing program (duration=30s, {Threaded:false Repeat:false 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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Write in corrupted
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:false 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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Write in pppol2tp_release
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:false 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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000240)=@pppol2tpin6={0x18, 0x1, {0x0, r1, 0x8, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}}, 0x32)
sendfile(0xffffffffffffffff, r1, &(0x7f0000000040)=0x3, 0xac6)
syz_clone3(&(0x7f0000000900)={0x23800000, &(0x7f0000000040)=<r2=>0xffffffffffffffff, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58)
ioctl$EXT4_IOC_GETFSUUID(r2, 0x40047452, 0x0)

program crashed: KASAN: use-after-free Write in corrupted
validation run: crashed=true
reproducing took 24m20.973058323s
repro crashed as (corrupted=true):
==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: use-after-free in atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline]
BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline]
BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:173 [inline]
BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 kernel/locking/mutex.c:298
Write of size 8 at addr ffff88812713c550 by task syz.2.17/384

CPU: 1 PID: 384 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77

report is corrupted, running repro again
testing compiled C program (duration=30s, {Threaded:false Repeat:false 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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-sendfile-syz_clone3-ioctl$EXT4_IOC_GETFSUUID
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in pppol2tp_sock_to_session+0x1a0/0x1b0 net/l2tp/l2tp_ppp.c:156
Read of size 4 at addr ffff888106394400 by task syz-executor183/288

CPU: 1 PID: 288 Comm: syz-executor183 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x100/0x140 mm/kasan/report.c:452
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
 pppol2tp_sock_to_session+0x1a0/0x1b0 net/l2tp/l2tp_ppp.c:156
 pppol2tp_release+0x150/0x2b0 net/l2tp/l2tp_ppp.c:435
 __sock_release net/socket.c:597 [inline]
 sock_close+0xb8/0x200 net/socket.c:1287
 __fput+0x2dc/0x730 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x127/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xa7c/0x24e0 kernel/exit.c:879
 __do_sys_exit kernel/exit.c:962 [inline]
 __se_sys_exit kernel/exit.c:960 [inline]
 __x64_sys_exit+0x40/0x40 kernel/exit.c:960
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fad997e9d79
Code: Unable to access opcode bytes at RIP 0x7fad997e9d4f.
RSP: 002b:00007ffc8c396398 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 0000200000000040 RCX: 00007fad997e9d79
RDX: 00007fad997fb557 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000023800000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc8c3965b8
R13: 0000000000000002 R14: 00007fad9987aca0 R15: 0000000000000002

Allocated by task 287:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 ____kasan_kmalloc mm/kasan/common.c:509 [inline]
 __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x19f/0x330 mm/slub.c:4038
 kmalloc include/linux/slab.h:560 [inline]
 kzalloc include/linux/slab.h:667 [inline]
 l2tp_session_create+0x39/0xb60 net/l2tp/l2tp_core.c:1616
 pppol2tp_connect+0xbf5/0x1640 net/l2tp/l2tp_ppp.c:772
 __sys_connect_file net/socket.c:1867 [inline]
 __sys_connect+0x3ce/0x450 net/socket.c:1884
 __do_sys_connect net/socket.c:1894 [inline]
 __se_sys_connect net/socket.c:1891 [inline]
 __x64_sys_connect+0x7a/0x90 net/socket.c:1891
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Freed by task 112:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4a/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:362
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370
 kasan_slab_free include/linux/kasan.h:220 [inline]
 slab_free_hook mm/slub.c:1600 [inline]
 slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1626
 slab_free mm/slub.c:3208 [inline]
 kfree+0xc0/0x270 mm/slub.c:4196
 l2tp_session_free net/l2tp/l2tp_core.c:168 [inline]
 l2tp_session_put+0xb2/0x1a0 net/l2tp/l2tp_core.c:193
 l2tp_session_delete+0x3a9/0x4a0 net/l2tp/l2tp_core.c:1589
 l2tp_tunnel_closeall net/l2tp/l2tp_core.c:1235 [inline]
 l2tp_tunnel_del_work+0x180/0x3d0 net/l2tp/l2tp_core.c:1273
 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301
 worker_thread+0xa8e/0x13c0 kernel/workqueue.c:2447
 kthread+0x324/0x3b0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298

The buggy address belongs to the object at ffff888106394400
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 0 bytes inside of
 512-byte region [ffff888106394400, ffff888106394600)
The buggy address belongs to the page:
page:ffffea000418e500 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106394
head:ffffea000418e500 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head)
raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 287, ts 22207522991, free_ts 22198059475
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x176/0x190 mm/page_alloc.c:2462
 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1813 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1874
 new_slab_objects mm/slub.c:2632 [inline]
 ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796
 __slab_alloc+0x63/0xa0 mm/slub.c:2836
 slab_alloc_node mm/slub.c:2918 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 __kmalloc+0x1f9/0x330 mm/slub.c:4034
 kmalloc include/linux/slab.h:560 [inline]
 kzalloc include/linux/slab.h:667 [inline]
 l2tp_session_create+0x39/0xb60 net/l2tp/l2tp_core.c:1616
 pppol2tp_connect+0xbf5/0x1640 net/l2tp/l2tp_ppp.c:772
 __sys_connect_file net/socket.c:1867 [inline]
 __sys_connect+0x3ce/0x450 net/socket.c:1884
 __do_sys_connect net/socket.c:1894 [inline]
 __se_sys_connect net/socket.c:1891 [inline]
 __x64_sys_connect+0x7a/0x90 net/socket.c:1891
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1349 [inline]
 __free_pages_ok+0x80b/0x830 mm/page_alloc.c:1629
 free_the_page mm/page_alloc.c:5445 [inline]
 __free_pages+0xd8/0x390 mm/page_alloc.c:5454
 free_pages+0x82/0x90 mm/page_alloc.c:5465
 __stack_depot_save+0x492/0x4c0 lib/stackdepot.c:359
 kasan_save_stack mm/kasan/common.c:39 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 ____kasan_kmalloc mm/kasan/common.c:509 [inline]
 __kasan_kmalloc+0xe6/0x100 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x19f/0x330 mm/slub.c:4038
 kmalloc include/linux/slab.h:560 [inline]
 sk_prot_alloc+0xb2/0x340 net/core/sock.c:1717
 sk_alloc+0x38/0x4e0 net/core/sock.c:1778
 pppol2tp_create+0x32/0x200 net/l2tp/l2tp_ppp.c:494
 pppox_create+0x124/0x180 drivers/net/ppp/pppox.c:146
 __sock_create+0x38d/0x770 net/socket.c:1437
 sock_create net/socket.c:1488 [inline]
 __sys_socket+0xec/0x190 net/socket.c:1530
 __do_sys_socket net/socket.c:1539 [inline]
 __se_sys_socket net/socket.c:1537 [inline]
 __x64_sys_socket+0x7a/0x90 net/socket.c:1537
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Memory state around the buggy address:
 ffff888106394300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888106394380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888106394400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff888106394480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888106394500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
------------[ cut here ]------------
WARNING: CPU: 0 PID: 288 at net/l2tp/l2tp_ppp.c:156 pppol2tp_sock_to_session+0x167/0x1b0 net/l2tp/l2tp_ppp.c:156
Modules linked in:
CPU: 0 PID: 288 Comm: syz-executor183 Tainted: G    B             syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:pppol2tp_sock_to_session+0x167/0x1b0 net/l2tp/l2tp_ppp.c:156
Code: 5d c3 e8 7c b3 34 fd be 02 00 00 00 eb 0a e8 70 b3 34 fd be 01 00 00 00 4c 89 f7 e8 f3 31 0e fe e9 0f ff ff ff e8 59 b3 34 fd <0f> 0b 48 89 df e8 ef 00 00 00 eb bd e8 48 b3 34 fd 4c 89 f7 be 03
RSP: 0018:ffffc9000092fc40 EFLAGS: 00010293
RAX: ffffffff843003c7 RBX: ffff88810638f000 RCX: ffff88811eed3c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000c04eb7d
RBP: ffffc9000092fc60 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff0dcfa48 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888106394400
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fad997fb4f0 CR3: 000000010d4e4000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 pppol2tp_release+0x150/0x2b0 net/l2tp/l2tp_ppp.c:435
 __sock_release net/socket.c:597 [inline]
 sock_close+0xb8/0x200 net/socket.c:1287
 __fput+0x2dc/0x730 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x127/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xa7c/0x24e0 kernel/exit.c:879
 __do_sys_exit kernel/exit.c:962 [inline]
 __se_sys_exit kernel/exit.c:960 [inline]
 __x64_sys_exit+0x40/0x40 kernel/exit.c:960
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fad997e9d79
Code: Unable to access opcode bytes at RIP 0x7fad997e9d4f.
RSP: 002b:00007ffc8c396398 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 0000200000000040 RCX: 00007fad997e9d79
RDX: 00007fad997fb557 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000023800000
R10: 0000000000000000 R11: 0000000000000246