./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3444864722 <...> forked to background, child pid 3185 [ 24.287416][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 24.300386][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices [ 24.526528][ T3270] ssh-keygen (3270) used greatest stack depth: 19280 bytes left Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.119' (ECDSA) to the list of known hosts. execve("./syz-executor3444864722", ["./syz-executor3444864722"], 0x7ffc0cc01820 /* 10 vars */) = 0 brk(NULL) = 0x555555859000 brk(0x555555859c40) = 0x555555859c40 arch_prctl(ARCH_SET_FS, 0x555555859300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3444864722", 4096) = 28 brk(0x55555587ac40) = 0x55555587ac40 brk(0x55555587b000) = 0x55555587b000 mprotect(0x7f6b71a4f000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3607 attached , child_tidptr=0x5555558595d0) = 3607 [pid 3607] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3607] setsid() = 1 [pid 3607] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3607] unshare(CLONE_NEWNS) = 0 [pid 3607] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3607] unshare(CLONE_NEWIPC) = 0 [pid 3607] unshare(CLONE_NEWCGROUP) = 0 [pid 3607] unshare(CLONE_NEWUTS) = 0 [pid 3607] unshare(CLONE_SYSVSEM) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "16777216", 8) = 8 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "536870912", 9) = 9 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "8192", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3607] close(3) = 0 [pid 3607] getpid() = 1 [pid 3607] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 48 c7 c7 e0 56 ec 8a 4c 89 e6 4c 89 f1 31 c0 e8 24 74 eb 05 [ 44.495928][ T122] RSP: 0018:ffffc900028ffc10 EFLAGS: 00010046 [ 44.501978][ T122] RAX: 0000000000000022 RBX: ffffc90002231120 RCX: 9784666ec714c300 [ 44.509944][ T122] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 [ 44.517905][ T122] RBP: ffff8880244a74d8 R08: ffffffff816bd38d R09: ffffed10173467f1 [ 44.525860][ T122] R10: ffffed10173467f1 R11: 1ffff110173467f0 R12: dffffc0000000000 [ 44.533810][ T122] R13: 1ffff92000446224 R14: 0000000000000000 R15: 0000000000000000 [ 44.541760][ T122] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 44.550662][ T122] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.557222][ T122] CR2: 00007f6b71a561d0 CR3: 000000002628c000 CR4: 00000000003506f0 [ 44.565175][ T122] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.573121][ T122] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.581069][ T122] Call Trace: [ 44.584331][ T122] [ 44.587245][ T122] diUpdatePMap+0x5d6/0xda0 [ 44.591731][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 44.597694][ T122] txUpdateMap+0x7c4/0xaa0 [ 44.602102][ T122] ? txCommit+0x6d40/0x6d40 [ 44.606583][ T122] jfs_lazycommit+0x433/0xba0 [ 44.611237][ T122] ? txFreelock+0x580/0x580 [ 44.615717][ T122] ? do_task_dead+0xc0/0xc0 [ 44.620199][ T122] ? _raw_spin_unlock+0x40/0x40 [ 44.625037][ T122] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 44.630997][ T122] ? __kthread_parkme+0x166/0x1c0 [ 44.636005][ T122] kthread+0x266/0x300 [ 44.640050][ T122] ? txFreelock+0x580/0x580 [ 44.644528][ T122] ? kthread_blkcg+0xd0/0xd0 [ 44.649094][ T122] ret_from_fork+0x1f/0x30 [ 44.653490][ T122] [ 44.656485][ T122] Modules linked in: [ 44.660361][ T122] ---[ end trace 0000000000000000 ]--- [ 44.665794][ T122] RIP: 0010:__list_add_valid+0xc7/0x100 [ 44.671319][ T122] Code: 4c 89 f1 31 c0 e8 5a 74 eb 05 0f 0b 48 c7 c7 e0 55 ec 8a 31 c0 e8 4a 74 eb 05 0f 0b 48 c7 c7 80 56 ec 8a 31 c0 e8 3a 74 eb 05 <0f> 0b 48 c7 c7 e0 56 ec 8a 4c 89 e6 4c 89 f1 31 c0 e8 24 74 eb 05 [ 44.690905][ T122] RSP: 0018:ffffc900028ffc10 EFLAGS: 00010046 [ 44.696946][ T122] RAX: 0000000000000022 RBX: ffffc90002231120 RCX: 9784666ec714c300 [ 44.704894][ T122] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 [ 44.712842][ T122] RBP: ffff8880244a74d8 R08: ffffffff816bd38d R09: ffffed10173467f1 [ 44.720790][ T122] R10: ffffed10173467f1 R11: 1ffff110173467f0 R12: dffffc0000000000 [ 44.728745][ T122] R13: 1ffff92000446224 R14: 0000000000000000 R15: 0000000000000000 [ 44.736692][ T122] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 44.745600][ T122] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.752158][ T122] CR2: 00007f6b71a561d0 CR3: 000000002628c000 CR4: 00000000003506f0 [ 44.760108][ T122] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.768056][ T122] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.776006][ T122] Kernel panic - not syncing: Fatal exception [ 45.872488][ T122] Shutting down cpus with NMI [ 45.877362][ T122] Kernel Offset: disabled [ 45.881672][ T122] Rebooting in 86400 seconds..