./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2788679699 <...> Warning: Permanently added '10.128.1.232' (ED25519) to the list of known hosts. execve("./syz-executor2788679699", ["./syz-executor2788679699"], 0x7ffed03ef4b0 /* 10 vars */) = 0 brk(NULL) = 0x555562635000 brk(0x555562635d00) = 0x555562635d00 arch_prctl(ARCH_SET_FS, 0x555562635380) = 0 set_tid_address(0x555562635650) = 5820 set_robust_list(0x555562635660, 24) = 0 rseq(0x555562635ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2788679699", 4096) = 28 getrandom("\xdc\xaa\xa3\xf6\xd5\x7c\x8f\x82", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555562635d00 brk(0x555562656d00) = 0x555562656d00 brk(0x555562657000) = 0x555562657000 mprotect(0x7fc849961000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5821 attached , child_tidptr=0x555562635650) = 5821 [pid 5821] set_robust_list(0x555562635660, 24) = 0 [pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5821] setpgid(0, 0) = 0 [pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5821] write(3, "1000", 4) = 4 [pid 5821] close(3executing program ) = 0 [pid 5821] write(1, "executing program\n", 18) = 18 [pid 5821] memfd_create("syzkaller", 0) = 3 [pid 5821] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc841400000 [pid 5821] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5821] munmap(0x7fc841400000, 138412032) = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5821] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5821] close(3) = 0 [pid 5821] close(4) = 0 [pid 5821] mkdir("./file0", 0777) = 0 [pid 5821] mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "iocharset=cp737,umask=0") = 0 [pid 5821] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 78.145036][ T5821] loop0: detected capacity change from 0 to 32768 [pid 5821] chdir("./file0") = 0 [pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5821] renameat2(AT_FDCWD, "./file1", AT_FDCWD, "./bus", 0) = 0 [ 78.228750][ T5821] VFS_BUG_ON_INODE(1) encountered for inode ffff8880777d3b80 [ 78.229226][ T5821] ------------[ cut here ]------------ [ 78.242339][ T5821] kernel BUG at fs/namei.c:3483! [ 78.247457][ T5821] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 78.253722][ T5821] CPU: 0 UID: 0 PID: 5821 Comm: syz-executor278 Not tainted 6.16.0-rc4-syzkaller-00049-gb4911fb0b060 #0 PREEMPT(full) [ 78.266120][ T5821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.276168][ T5821] RIP: 0010:may_open+0x462/0x470 [ 78.281121][ T5821] Code: 38 c1 0f 8c 9b fe ff ff 4c 89 ff e8 d8 26 ec ff e9 8e fe ff ff e8 ee ce 8a ff 4c 89 f7 48 c7 c6 40 3f 99 8b e8 af 95 f2 fe 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 [ 78.300723][ T5821] RSP: 0018:ffffc9000411f940 EFLAGS: 00010246 [ 78.306786][ T5821] RAX: 000000000000003a RBX: dffffc0000000000 RCX: 168d787e49e2e400 [ 78.314749][ T5821] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 78.322728][ T5821] RBP: ffffffff8e29cd00 R08: ffffc9000411f667 R09: 1ffff92000823ecc [ 78.330703][ T5821] R10: dffffc0000000000 R11: fffff52000823ecd R12: ffffc9000411fc20 [ 78.338665][ T5821] R13: 00000000000fffff R14: ffff8880777d3b80 R15: 0000000000000006 [ 78.346630][ T5821] FS: 0000555562635380(0000) GS:ffff888125c84000(0000) knlGS:0000000000000000 [ 78.355549][ T5821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.362126][ T5821] CR2: 00007f031438dd30 CR3: 0000000072dee000 CR4: 00000000003526f0 [ 78.370097][ T5821] Call Trace: [ 78.373366][ T5821] [ 78.376294][ T5821] path_openat+0x2d91/0x3830 [ 78.380884][ T5821] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 78.387225][ T5821] ? __pfx_path_openat+0x10/0x10 [ 78.392160][ T5821] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.398226][ T5821] do_filp_open+0x1fa/0x410 [ 78.402728][ T5821] ? __lock_acquire+0xab9/0xd20 [ 78.407585][ T5821] ? __pfx_do_filp_open+0x10/0x10 [ 78.412611][ T5821] ? _raw_spin_unlock+0x28/0x50 [ 78.417460][ T5821] ? alloc_fd+0x64c/0x6c0 [ 78.421790][ T5821] do_sys_openat2+0x121/0x1c0 [ 78.426472][ T5821] ? __pfx_do_sys_openat2+0x10/0x10 [ 78.431691][ T5821] ? rcu_is_watching+0x15/0xb0 [ 78.436459][ T5821] __x64_sys_open+0x11e/0x150 [ 78.441132][ T5821] do_syscall_64+0xfa/0x3b0 [ 78.445635][ T5821] ? lockdep_hardirqs_on+0x9c/0x150 [ 78.450829][ T5821] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.456885][ T5821] ? clear_bhb_loop+0x60/0xb0 [ 78.461557][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 78.467439][ T5821] RIP: 0033:0x7fc8498e6e99 [ 78.471854][ T5821] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 78.491458][ T5821] RSP: 002b:00007ffd583f6758 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 78.499864][ T5821] RAX: ffffffffffffffda RBX: 00007fc849930095 RCX: 00007fc8498e6e99 [ 78.507837][ T5821] RDX: 0000000000000000 RSI: 0000000000143142 RDI: 0000200000000100 [ 78.515813][ T5821] RBP: 00007fc8499615f0 R08: 00005555626364c0 R09: 00005555626364c0 [ 78.523804][ T5821] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd583f6780 [ 78.531787][ T5821] R13: 00007ffd583f69a8 R14: 431bde82d7b634db R15: 00007fc84993003b [ 78.539794][ T5821] [ 78.542886][ T5821] Modules linked in: [ 78.547190][ T5821] ---[ end trace 0000000000000000 ]--- [ 78.552791][ T5821] RIP: 0010:may_open+0x462/0x470 [ 78.557800][ T5821] Code: 38 c1 0f 8c 9b fe ff ff 4c 89 ff e8 d8 26 ec ff e9 8e fe ff ff e8 ee ce 8a ff 4c 89 f7 48 c7 c6 40 3f 99 8b e8 af 95 f2 fe 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 [ 78.577466][ T5821] RSP: 0018:ffffc9000411f940 EFLAGS: 00010246 [ 78.583570][ T5821] RAX: 000000000000003a RBX: dffffc0000000000 RCX: 168d787e49e2e400 [ 78.591597][ T5821] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 78.599630][ T5821] RBP: ffffffff8e29cd00 R08: ffffc9000411f667 R09: 1ffff92000823ecc [ 78.607647][ T5821] R10: dffffc0000000000 R11: fffff52000823ecd R12: ffffc9000411fc20 [ 78.615665][ T5821] R13: 00000000000fffff R14: ffff8880777d3b80 R15: 0000000000000006 [ 78.623643][ T5821] FS: 0000555562635380(0000) GS:ffff888125c84000(0000) knlGS:0000000000000000 [ 78.632608][ T5821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.639234][ T5821] CR2: 00007f031438dd30 CR3: 0000000072dee000 CR4: 00000000003526f0 [ 78.647244][ T5821] Kernel panic - not syncing: Fatal exception [ 78.653561][ T5821] Kernel Offset: disabled [ 78.657893][ T5821] Rebooting in 86400 seconds..