./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1868432131 <...> forked to background, child pid 3185 no interfaces have a carrier [ 27.075392][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 27.089529][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.21' (ECDSA) to the list of known hosts. execve("./syz-executor1868432131", ["./syz-executor1868432131"], 0x7ffe809aef70 /* 10 vars */) = 0 brk(NULL) = 0x555555ffa000 brk(0x555555ffac40) = 0x555555ffac40 arch_prctl(ARCH_SET_FS, 0x555555ffa300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1868432131", 4096) = 28 brk(0x55555601bc40) = 0x55555601bc40 brk(0x55555601c000) = 0x55555601c000 mprotect(0x7f94ed0da000, 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 3615 attached , child_tidptr=0x555555ffa5d0) = 3615 [pid 3615] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3615] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3615] setsid() = 1 [pid 3615] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3615] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3615] unshare(CLONE_NEWNS) = 0 [pid 3615] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3615] unshare(CLONE_NEWIPC) = 0 [pid 3615] unshare(CLONE_NEWCGROUP) = 0 [pid 3615] unshare(CLONE_NEWUTS) = 0 [pid 3615] unshare(CLONE_SYSVSEM) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "16777216", 8) = 8 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "536870912", 9) = 9 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "8192", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024", 4) = 4 [pid 3615] close(3) = 0 [pid 3615] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3615] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3615] close(3) = 0 [pid 3615] getpid() = 1 [pid 3615] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 3c 02 00 0f 85 4e 31 00 00 49 81 3e 60 84 51 8f 0f 84 4c f3 ff [ 44.759833][ T3616] RSP: 0018:ffffc9000399f268 EFLAGS: 00010002 [ 44.765903][ T3616] RAX: dffffc0000000000 RBX: 1ffff92000733e7c RCX: 0000000000000001 [ 44.773877][ T3616] RDX: 0000000000000025 RSI: 0000000000000000 RDI: 0000000000000001 [ 44.781849][ T3616] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 44.789826][ T3616] R10: fffffbfff1bbd60a R11: 0000000000000000 R12: 0000000000000000 [ 44.797885][ T3616] R13: ffff888022c8bb00 R14: 0000000000000128 R15: 0000000000000001 [ 44.805861][ T3616] FS: 0000555555ffa300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 44.814799][ T3616] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.821388][ T3616] CR2: 00007f94ed0de140 CR3: 0000000070cb4000 CR4: 00000000003506e0 [ 44.829366][ T3616] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.837425][ T3616] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.845397][ T3616] Call Trace: [ 44.848689][ T3616] [ 44.851626][ T3616] ? lock_chain_count+0x20/0x20 [ 44.856495][ T3616] ? lock_downgrade+0x6e0/0x6e0 [ 44.861370][ T3616] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 44.867366][ T3616] ? lock_release+0x780/0x780 [ 44.872054][ T3616] ? __stack_depot_save+0x23f/0x500 [ 44.877281][ T3616] lock_acquire+0x1ab/0x570 [ 44.881792][ T3616] ? binder_alloc_new_buf+0xa5/0x19e0 [ 44.887175][ T3616] ? lock_release+0x780/0x780 [ 44.891865][ T3616] ? __mutex_lock+0x231/0x1350 [ 44.896647][ T3616] down_read+0x98/0x450 [ 44.900823][ T3616] ? binder_alloc_new_buf+0xa5/0x19e0 [ 44.906202][ T3616] ? rwsem_down_read_slowpath+0xb10/0xb10 [ 44.911938][ T3616] ? find_held_lock+0x2d/0x110 [ 44.916737][ T3616] binder_alloc_new_buf+0xa5/0x19e0 [ 44.921948][ T3616] binder_transaction+0x242e/0x9a80 [ 44.927160][ T3616] ? is_bpf_text_address+0x77/0x170 [ 44.932380][ T3616] ? __lock_acquire+0x166e/0x56d0 [ 44.937412][ T3616] ? binder_deferred_func+0x1150/0x1150 [ 44.942975][ T3616] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 44.948962][ T3616] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 44.954950][ T3616] ? arch_stack_walk+0x93/0xe0 [ 44.959814][ T3616] ? find_held_lock+0x2d/0x110 [ 44.964596][ T3616] ? __might_fault+0xd1/0x170 [ 44.969295][ T3616] ? lock_downgrade+0x6e0/0x6e0 [ 44.974246][ T3616] binder_thread_write+0x8a9/0x3220 [ 44.979464][ T3616] ? binder_transaction+0x9a80/0x9a80 [ 44.984931][ T3616] ? find_held_lock+0x2d/0x110 [ 44.989706][ T3616] ? binder_debug+0xb2/0x160 [ 44.994309][ T3616] ? __traceiter_binder_return+0xa0/0xa0 [ 44.999954][ T3616] ? lock_downgrade+0x6e0/0x6e0 [ 45.004821][ T3616] binder_ioctl+0x3470/0x6d00 [ 45.009508][ T3616] ? tomoyo_path_number_perm+0x24e/0x590 [ 45.015428][ T3616] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 45.021254][ T3616] ? __sanitizer_cov_trace_switch+0x50/0x90 [ 45.027164][ T3616] ? binder_thread_write+0x3220/0x3220 [ 45.032632][ T3616] ? do_vfs_ioctl+0x132/0x15c0 [ 45.037424][ T3616] ? vfs_fileattr_set+0xbe0/0xbe0 [ 45.042458][ T3616] ? find_held_lock+0x2d/0x110 [ 45.047271][ T3616] ? name_to_dev_t+0x760/0x990 [ 45.052048][ T3616] ? lock_downgrade+0x6e0/0x6e0 [ 45.056907][ T3616] ? _raw_spin_unlock_irq+0x1f/0x40 [ 45.062112][ T3616] ? bpf_lsm_file_ioctl+0x5/0x10 [ 45.067061][ T3616] ? binder_thread_write+0x3220/0x3220 [ 45.072530][ T3616] __x64_sys_ioctl+0x193/0x200 [ 45.077301][ T3616] do_syscall_64+0x35/0xb0 [ 45.081772][ T3616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 45.087768][ T3616] RIP: 0033:0x7f94ed06d339 [ 45.092186][ T3616] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 45.111821][ T3616] RSP: 002b:00007ffcb1a92b08 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.120238][ T3616] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f94ed06d339 [ 45.128215][ T3616] RDX: 0000000020000680 RSI: 00000000c0306201 RDI: 0000000000000004 [ 45.136189][ T3616] RBP: 0000000000000000 R08: 00007f94ed0dae40 R09: 00007f94ed0dae40 [ 45.144161][ T3616] R10: 00007f94ed0dae40 R11: 0000000000000246 R12: 00007ffcb1a92b40 [ 45.152136][ T3616] R13: 00007ffcb1a92b30 R14: 00007ffcb1a92b20 R15: 0000000000000000 [ 45.160116][ T3616] [ 45.163133][ T3616] Modules linked in: [ 45.167034][ T3616] ---[ end trace 0000000000000000 ]--- [ 45.172484][ T3616] RIP: 0010:__lock_acquire+0xd83/0x56d0 [ 45.178044][ T3616] Code: 9b 0e 41 bf 01 00 00 00 0f 86 c8 00 00 00 89 05 63 56 9b 0e e9 bd 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 4e 31 00 00 49 81 3e 60 84 51 8f 0f 84 4c f3 ff [ 45.197655][ T3616] RSP: 0018:ffffc9000399f268 EFLAGS: 00010002 [ 45.203723][ T3616] RAX: dffffc0000000000 RBX: 1ffff92000733e7c RCX: 0000000000000001 [ 45.211700][ T3616] RDX: 0000000000000025 RSI: 0000000000000000 RDI: 0000000000000001 [ 45.219671][ T3616] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 45.227643][ T3616] R10: fffffbfff1bbd60a R11: 0000000000000000 R12: 0000000000000000 [ 45.235615][ T3616] R13: ffff888022c8bb00 R14: 0000000000000128 R15: 0000000000000001 [ 45.245063][ T3616] FS: 0000555555ffa300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 45.255135][ T3616] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.261811][ T3616] CR2: 00007f94ed0de140 CR3: 0000000070cb4000 CR4: 00000000003506e0 [ 45.269788][ T3616] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 45.277783][ T3616] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 45.285778][ T3616] Kernel panic - not syncing: Fatal exception [ 45.291997][ T3616] Kernel Offset: disabled [ 45.296322][ T3616] Rebooting in 86400 seconds..