./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2058425184 <...> Warning: Permanently added '10.128.0.170' (ED25519) to the list of known hosts. execve("./syz-executor2058425184", ["./syz-executor2058425184"], 0x7ffe2086df30 /* 10 vars */) = 0 brk(NULL) = 0x5555674ab000 brk(0x5555674abd00) = 0x5555674abd00 arch_prctl(ARCH_SET_FS, 0x5555674ab380) = 0 set_tid_address(0x5555674ab650) = 287 set_robust_list(0x5555674ab660, 24) = 0 rseq(0x5555674abca0, 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-executor2058425184", 4096) = 28 getrandom("\x37\xd0\x37\x27\xc5\x59\x86\x06", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555674abd00 brk(0x5555674ccd00) = 0x5555674ccd00 brk(0x5555674cd000) = 0x5555674cd000 mprotect(0x7feed2cea000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555674ab650) = 288 ./strace-static-x86_64: Process 288 attached [pid 288] set_robust_list(0x5555674ab660, 24) = 0 [pid 288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 288] getppid() = 0 [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) [ 36.983144][ T30] audit: type=1400 audit(1747971813.747:64): avc: denied { execmem } for pid=287 comm="syz-executor205" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 288] getpid() = 1 [pid 288] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 56 53 [ 37.777177][ T288] RSP: 0018:ffffc900007bfb10 EFLAGS: 00010293 [ 37.785330][ T288] RAX: ffffffff81b1c0e1 RBX: ffff888121a28aa0 RCX: ffff888120ba2780 [ 37.797216][ T288] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 37.809319][ T288] RBP: ffffc900007bfb78 R08: 0000000000000004 R09: 0000000000000003 [ 37.822046][ T288] R10: fffff520000f7f44 R11: 1ffff920000f7f44 R12: dffffc0000000000 [ 37.833300][ T288] R13: 0000000000000001 R14: ffff888121a28140 R15: 1ffff11024345154 [ 37.842884][ T288] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 37.855118][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.862294][ T288] CR2: 0000000010892258 CR3: 000000010d21d000 CR4: 00000000003506a0 [ 37.872687][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.881956][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.891165][ T288] Call Trace: [ 37.894890][ T288] [ 37.898212][ T288] vfs_rmdir+0x32/0x460 [ 37.905191][ T288] incfs_kill_sb+0x105/0x220 [ 37.911425][ T288] deactivate_locked_super+0xa0/0x100 [ 37.917991][ T288] deactivate_super+0xaf/0xe0 [ 37.923586][ T288] cleanup_mnt+0x446/0x500 [ 37.928937][ T288] __cleanup_mnt+0x19/0x20 [ 37.935289][ T288] task_work_run+0x127/0x190 [ 37.940844][ T288] do_exit+0xa76/0x27a0 [ 37.946011][ T288] ? ptrace_stop+0x6f4/0xa80 [ 37.951075][ T288] ? put_task_struct+0x90/0x90 [ 37.956713][ T288] ? ptrace_notify+0x1c4/0x250 [ 37.962580][ T288] ? do_notify_parent+0x800/0x800 [ 37.969612][ T288] do_group_exit+0x141/0x310 [ 37.974952][ T288] ? debug_smp_processor_id+0x17/0x20 [ 37.981392][ T288] __x64_sys_exit_group+0x3f/0x40 [ 37.988181][ T288] x64_sys_call+0x832/0x9a0 [ 37.993888][ T288] do_syscall_64+0x4c/0xa0 [ 37.999311][ T288] ? clear_bhb_loop+0x35/0x90 [ 38.005950][ T288] ? clear_bhb_loop+0x35/0x90 [ 38.011621][ T288] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 38.018477][ T288] RIP: 0033:0x7feed2c73fc9 [ 38.023573][ T288] Code: Unable to access opcode bytes at RIP 0x7feed2c73f9f. [ 38.032318][ T288] RSP: 002b:00007ffc676b4f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 38.042561][ T288] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007feed2c73fc9 [ 38.052567][ T288] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 38.061770][ T288] RBP: 00007feed2cf0390 R08: ffffffffffffffb8 R09: 0000000000000006 [ 38.072017][ T288] R10: 0000000000000000 R11: 0000000000000246 R12: 00007feed2cf0390 [ 38.082597][ T288] R13: 0000000000000000 R14: 00007feed2cf1100 R15: 00007feed2c42290 [ 38.092973][ T288] [ 38.099780][ T288] Modules linked in: [ 38.104132][ T288] ---[ end trace 0016eff026a0c83f ]--- [ 38.113912][ T288] RIP: 0010:may_delete+0x701/0x710 [ 38.120919][ T288] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 84 fe ff ff 48 89 df e8 00 54 f5 ff e9 77 fe ff ff e8 e6 e2 b6 ff 0f 0b e8 df e2 b6 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 56 53 [ 38.152987][ T288] RSP: 0018:ffffc900007bfb10 EFLAGS: 00010293 [ 38.160053][ T288] RAX: ffffffff81b1c0e1 RBX: ffff888121a28aa0 RCX: ffff888120ba2780 [ 38.178217][ T288] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 38.194825][ T288] RBP: ffffc900007bfb78 R08: 0000000000000004 R09: 0000000000000003 [ 38.205722][ T288] R10: fffff520000f7f44 R11: 1ffff920000f7f44 R12: dffffc0000000000 [ 38.218825][ T288] R13: 0000000000000001 R14: ffff888121a28140 R15: 1ffff11024345154 [ 38.232168][ T288] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 38.245428][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.254632][ T288] CR2: 0000000010892258 CR3: 000000010d21d000 CR4: 00000000003506a0 [ 38.264591][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.282652][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.294966][ T288] Kernel panic - not syncing: Fatal exception [ 38.304962][ T288] Kernel Offset: disabled [ 38.314851][ T288] Rebooting in 86400 seconds..