./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3845632031 <...> Warning: Permanently added '10.128.0.121' (ED25519) to the list of known hosts. execve("./syz-executor3845632031", ["./syz-executor3845632031"], 0x7ffcd3953d90 /* 10 vars */) = 0 brk(NULL) = 0x555557036000 brk(0x555557036d00) = 0x555557036d00 arch_prctl(ARCH_SET_FS, 0x555557036380) = 0 set_tid_address(0x555557036650) = 295 set_robust_list(0x555557036660, 24) = 0 rseq(0x555557036ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3845632031", 4096) = 28 getrandom("\xc2\x8c\xd2\xe3\xb0\xc8\x85\xba", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557036d00 brk(0x555557057d00) = 0x555557057d00 brk(0x555557058000) = 0x555557058000 mprotect(0x7f653cb8e000, 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, child_tidptr=0x555557036650) = 296 ./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x555557036660, 24) = 0 [pid 296] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] setsid() = 1 [pid 296] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 296] unshare(CLONE_NEWNS) = 0 [pid 296] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 296] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 296] unshare(CLONE_NEWCGROUP) = 0 [pid 296] unshare(CLONE_NEWUTS) = 0 [pid 296] unshare(CLONE_SYSVSEM) = 0 [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] getpid() = 1 [pid 296] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 64 ac ff 4c 8d [ 24.751048][ T296] RSP: 0018:ffffc90000ee7a58 EFLAGS: 00010293 [ 24.756937][ T296] RAX: ffffffff81c9210b RBX: ffff88812096ead0 RCX: ffff8881095e3cc0 [ 24.764748][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 24.772649][ T296] RBP: ffffc90000ee7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 24.780466][ T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888120915aa0 [ 24.788270][ T296] R13: 1ffff11024122b54 R14: ffff88810058dce8 R15: dffffc0000000000 [ 24.796247][ T296] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.805444][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.811866][ T296] CR2: 00005586c302e118 CR3: 0000000109af7000 CR4: 00000000003506a0 [ 24.819683][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.827586][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.835400][ T296] Call Trace: [ 24.838530][ T296] [ 24.841302][ T296] ? __die_body+0x62/0xb0 [ 24.845463][ T296] ? die+0x88/0xb0 [ 24.849021][ T296] ? do_trap+0x103/0x330 [ 24.853182][ T296] ? may_delete+0x6eb/0x6f0 [ 24.857529][ T296] ? handle_invalid_op+0x95/0xc0 [ 24.862293][ T296] ? may_delete+0x6eb/0x6f0 [ 24.866635][ T296] ? exc_invalid_op+0x32/0x50 [ 24.871173][ T296] ? asm_exc_invalid_op+0x1b/0x20 [ 24.876016][ T296] ? may_delete+0x7f/0x6f0 [ 24.880267][ T296] ? may_delete+0x6eb/0x6f0 [ 24.884615][ T296] ? may_delete+0x6eb/0x6f0 [ 24.888940][ T296] ? may_delete+0x6eb/0x6f0 [ 24.893379][ T296] vfs_rmdir+0x32/0x500 [ 24.897365][ T296] ? generic_shutdown_super+0x2b8/0x370 [ 24.902918][ T296] incfs_kill_sb+0x113/0x230 [ 24.907348][ T296] deactivate_locked_super+0xad/0x110 [ 24.912566][ T296] deactivate_super+0xbe/0xf0 [ 24.917074][ T296] cleanup_mnt+0x485/0x510 [ 24.921356][ T296] __cleanup_mnt+0x19/0x20 [ 24.925569][ T296] task_work_run+0x24d/0x2e0 [ 24.930079][ T296] ? kmem_cache_free+0x291/0x510 [ 24.934862][ T296] ? task_work_cancel+0x2b0/0x2b0 [ 24.939722][ T296] ? free_nsproxy+0x20d/0x260 [ 24.944232][ T296] ? exit_task_namespaces+0xb4/0xd0 [ 24.949265][ T296] do_exit+0xbd5/0x2b80 [ 24.953260][ T296] ? put_task_struct+0x80/0x80 [ 24.957951][ T296] ? __kasan_check_write+0x14/0x20 [ 24.962890][ T296] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 24.968020][ T296] ? _raw_spin_lock_irqsave+0x210/0x210 [ 24.973522][ T296] ? zap_other_threads+0x29c/0x2d0 [ 24.978576][ T296] do_group_exit+0x21a/0x2d0 [ 24.982996][ T296] __x64_sys_exit_group+0x3f/0x40 [ 24.987858][ T296] do_syscall_64+0x3d/0xb0 [ 24.992207][ T296] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 24.998064][ T296] RIP: 0033:0x7f653cb17e09 [ 25.002295][ T296] Code: Unable to access opcode bytes at 0x7f653cb17ddf. [ 25.009332][ T296] RSP: 002b:00007ffef8ca2148 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.017559][ T296] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f653cb17e09 [ 25.025377][ T296] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 25.035778][ T296] RBP: 00007f653cb94370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 25.044366][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f653cb94370 [ 25.052253][ T296] R13: 0000000000000000 R14: 00007f653cb950e0 R15: 00007f653cae60d0 [ 25.060170][ T296] [ 25.063044][ T296] Modules linked in: [ 25.067200][ T296] ---[ end trace 0000000000000000 ]--- [ 25.072512][ T296] RIP: 0010:may_delete+0x6eb/0x6f0 [ 25.077666][ T296] Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 66 71 f3 ff e9 72 fe ff ff e8 cc 64 ac ff 0f 0b e8 c5 64 ac ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 64 ac ff 4c 8d [ 25.097219][ T296] RSP: 0018:ffffc90000ee7a58 EFLAGS: 00010293 [ 25.103231][ T296] RAX: ffffffff81c9210b RBX: ffff88812096ead0 RCX: ffff8881095e3cc0 [ 25.111281][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.119233][ T296] RBP: ffffc90000ee7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 25.127045][ T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888120915aa0 [ 25.134934][ T296] R13: 1ffff11024122b54 R14: ffff88810058dce8 R15: dffffc0000000000 [ 25.142807][ T296] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.151613][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.158052][ T296] CR2: 00005586c302e118 CR3: 0000000109af7000 CR4: 00000000003506a0 [ 25.165861][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.173640][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.181501][ T296] Kernel panic - not syncing: Fatal exception [ 25.187950][ T296] Kernel Offset: disabled [ 25.192096][ T296] Rebooting in 86400 seconds..