./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2962353843 <...> Warning: Permanently added '10.128.10.8' (ED25519) to the list of known hosts. execve("./syz-executor2962353843", ["./syz-executor2962353843"], 0x7ffd2145a390 /* 10 vars */) = 0 brk(NULL) = 0x55556d625000 brk(0x55556d625e00) = 0x55556d625e00 arch_prctl(ARCH_SET_FS, 0x55556d625480) = 0 set_tid_address(0x55556d625750) = 287 set_robust_list(0x55556d625760, 24) = 0 rseq(0x55556d625da0, 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-executor2962353843", 4096) = 28 getrandom("\x0f\x18\xac\x37\x46\xfe\xca\x1e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556d625e00 brk(0x55556d646e00) = 0x55556d646e00 brk(0x55556d647000) = 0x55556d647000 mprotect(0x7efd578eb000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7efd57841d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7efd5784aa40}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7efd57841d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7efd5784aa40}, NULL, 8) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556d625750) = 288 ./strace-static-x86_64: Process 288 attached [pid 288] set_robust_list(0x55556d625760, 24) = 0 [pid 288] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 288] setsid() = 1 [pid 288] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 288] unshare(CLONE_NEWNS) = 0 [pid 288] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 288] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 288] unshare(CLONE_NEWCGROUP) = 0 [pid 288] unshare(CLONE_NEWUTS) = 0 [pid 288] unshare(CLONE_SYSVSEM) = 0 [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] getpid() = 1 [pid 288] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0f b6 04 30 84 c0 75 07 8b 03 5b 41 5e 5d c3 89 d9 80 e1 07 80 [ 22.515398][ T288] RSP: 0018:ffffc90000b374b8 EFLAGS: 00010203 [ 22.521277][ T288] RAX: 0000000000000001 RBX: 000000000000000c RCX: ffff888120a20000 [ 22.529087][ T288] RDX: 0000000000000000 RSI: ffffffff8686a330 RDI: 0000000000000000 [ 22.536903][ T288] RBP: ffffc90000b374c8 R08: 0000000000000007 R09: ffffffff81cb18f5 [ 22.544823][ T288] R10: 0000000000000002 R11: ffff888120a20000 R12: dffffc0000000000 [ 22.552646][ T288] R13: 1ffff92000166eb4 R14: dffffc0000000000 R15: ffff88810fdbce60 [ 22.560438][ T288] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 22.569203][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.575627][ T288] CR2: 000056157b3a0048 CR3: 000000010c9eb000 CR4: 00000000003506a0 [ 22.583453][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.591249][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.599058][ T288] Call Trace: [ 22.602194][ T288] ? __die_body+0x62/0xb0 [ 22.606370][ T288] ? die_addr+0x9f/0xd0 [ 22.610346][ T288] ? exc_general_protection+0x3ff/0x490 [ 22.615733][ T288] ? asm_exc_general_protection+0x1e/0x30 [ 22.621285][ T288] ? posix_acl_create+0x135/0x400 [ 22.626144][ T288] ? current_umask+0x49/0x70 [ 22.630569][ T288] ? current_umask+0x16/0x70 [ 22.635008][ T288] posix_acl_create+0x169/0x400 [ 22.639683][ T288] ext4_init_acl+0xf3/0x400 [ 22.644022][ T288] ? __ext4_set_acl+0x5e0/0x5e0 [ 22.648708][ T288] ? prandom_u32+0x24c/0x290 [ 22.653136][ T288] __ext4_new_inode+0x2f6f/0x3ee0 [ 22.657999][ T288] ? ext4_has_group_desc_csum+0x1f0/0x1f0 [ 22.663551][ T288] ? dquot_initialize+0x20/0x20 [ 22.668236][ T288] ? may_create+0x65a/0x900 [ 22.672578][ T288] ext4_mknod+0x267/0x530 [ 22.676745][ T288] ? ext4_rmdir+0xa70/0xa70 [ 22.681082][ T288] ? selinux_inode_mknod+0x7b/0xa0 [ 22.686029][ T288] ? security_inode_mknod+0xc8/0x110 [ 22.691151][ T288] vfs_mknod+0x53f/0x610 [ 22.695235][ T288] ovl_cleanup_and_whiteout+0x1b1/0x580 [ 22.700614][ T288] ovl_do_remove+0x72a/0xc90 [ 22.705036][ T288] ? ovl_set_redirect+0x630/0x630 [ 22.709896][ T288] ? down_write+0xd7/0x150 [ 22.714152][ T288] ? down_read_killable+0x220/0x220 [ 22.719183][ T288] ? selinux_inode_rmdir+0x22/0x30 [ 22.724132][ T288] ovl_rmdir+0x1a/0x20 [ 22.728035][ T288] vfs_rmdir+0x2b7/0x3f0 [ 22.732117][ T288] incfs_kill_sb+0x108/0x220 [ 22.736544][ T288] deactivate_locked_super+0xad/0x110 [ 22.741753][ T288] deactivate_super+0xbe/0xf0 [ 22.746264][ T288] cleanup_mnt+0x45c/0x510 [ 22.750517][ T288] __cleanup_mnt+0x19/0x20 [ 22.754771][ T288] task_work_run+0x129/0x190 [ 22.759194][ T288] do_exit+0xc83/0x2a50 [ 22.763187][ T288] ? put_task_struct+0x80/0x80 [ 22.767787][ T288] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.772822][ T288] ? ptrace_notify+0x24c/0x350 [ 22.777423][ T288] ? do_notify_parent+0xa10/0xa10 [ 22.782285][ T288] ? debug_smp_processor_id+0x17/0x20 [ 22.787490][ T288] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 22.793395][ T288] do_group_exit+0x141/0x310 [ 22.797817][ T288] __x64_sys_exit_group+0x3f/0x40 [ 22.802676][ T288] do_syscall_64+0x34/0x70 [ 22.806931][ T288] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 22.812661][ T288] RIP: 0033:0x7efd57875809 [ 22.816908][ T288] Code: Unable to access opcode bytes at RIP 0x7efd578757df. [ 22.824113][ T288] RSP: 002b:00007ffc09bc6ac8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 22.832362][ T288] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007efd57875809 [ 22.840168][ T288] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 22.847980][ T288] RBP: 00007efd578f12b0 R08: ffffffffffffffb8 R09: 00007efd578c583c [ 22.855794][ T288] R10: 0000000000000000 R11: 0000000000000246 R12: 00007efd578f12b0 [ 22.863607][ T288] R13: 0000000000000000 R14: 00007efd578f2020 R15: 00007efd57843b40 [ 22.871413][ T288] Modules linked in: [ 22.875349][ T288] ---[ end trace 8ec9e32bf0e3dd86 ]--- [ 22.880658][ T288] RIP: 0010:current_umask+0x49/0x70 [ 22.885634][ T288] Code: 81 c3 c0 07 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 b5 a2 e9 ff 48 8b 1b 48 83 c3 0c 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 75 07 8b 03 5b 41 5e 5d c3 89 d9 80 e1 07 80 [ 22.905096][ T288] RSP: 0018:ffffc90000b374b8 EFLAGS: 00010203 [ 22.910989][ T288] RAX: 0000000000000001 RBX: 000000000000000c RCX: ffff888120a20000 [ 22.918786][ T288] RDX: 0000000000000000 RSI: ffffffff8686a330 RDI: 0000000000000000 [ 22.926617][ T288] RBP: ffffc90000b374c8 R08: 0000000000000007 R09: ffffffff81cb18f5 [ 22.934432][ T288] R10: 0000000000000002 R11: ffff888120a20000 R12: dffffc0000000000 [ 22.942244][ T288] R13: 1ffff92000166eb4 R14: dffffc0000000000 R15: ffff88810fdbce60 [ 22.950053][ T288] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 22.958846][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.965259][ T288] CR2: 000056157b3a0048 CR3: 000000000660f000 CR4: 00000000003506a0 [ 22.973066][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.980871][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.988684][ T288] Kernel panic - not syncing: Fatal exception [ 22.994748][ T288] Kernel Offset: disabled [ 22.998870][ T288] Rebooting in 86400 seconds..