./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2888435919 <...> Warning: Permanently added '10.128.10.22' (ED25519) to the list of known hosts. execve("./syz-executor2888435919", ["./syz-executor2888435919"], 0x7fff5186e200 /* 10 vars */) = 0 brk(NULL) = 0x55555f141000 brk(0x55555f141d00) = 0x55555f141d00 arch_prctl(ARCH_SET_FS, 0x55555f141380) = 0 set_tid_address(0x55555f141650) = 5821 set_robust_list(0x55555f141660, 24) = 0 rseq(0x55555f141ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2888435919", 4096) = 28 getrandom("\xab\x43\x74\xb2\xd2\xc8\xdd\x8b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555f141d00 brk(0x55555f162d00) = 0x55555f162d00 brk(0x55555f163000) = 0x55555f163000 mprotect(0x7f1f894af000, 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 write(1, "executing program\n", 18executing program ) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1f80e00000 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 munmap(0x7f1f80e00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 [ 88.991153][ T5821] loop0: detected capacity change from 0 to 32768 mount("/dev/loop0", "./file0", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_POSIXACL|MS_LAZYTIME, "iocharset=cp737,umask=0") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 89.070283][ T5821] VFS_BUG_ON_INODE(1) encountered for inode ffff888078498d68 [ 89.070486][ T5821] ------------[ cut here ]------------ [ 89.083708][ T5821] kernel BUG at fs/namei.c:3474! [ 89.090363][ T5821] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 89.096649][ T5821] CPU: 1 UID: 0 PID: 5821 Comm: syz-executor288 Not tainted 6.15.0-syzkaller-02198-gb1456f6dc167 #0 PREEMPT(full) [ 89.108738][ T5821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 89.118788][ T5821] RIP: 0010:may_open+0x462/0x470 [ 89.123746][ T5821] Code: 38 c1 0f 8c 9b fe ff ff 4c 89 ff e8 78 3f ec ff e9 8e fe ff ff e8 5e 85 8b ff 4c 89 f7 48 c7 c6 c0 22 79 8b e8 6f a8 f3 fe 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 [ 89.143352][ T5821] RSP: 0018:ffffc9000432f940 EFLAGS: 00010246 [ 89.149416][ T5821] RAX: 000000000000003a RBX: dffffc0000000000 RCX: d2735fd466bbdd00 [ 89.157383][ T5821] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 89.165363][ T5821] RBP: ffffffff8e099800 R08: ffff8880b8824293 R09: 1ffff11017104852 [ 89.173327][ T5821] R10: dffffc0000000000 R11: ffffed1017104853 R12: ffffc9000432fc20 [ 89.181289][ T5821] R13: 00000000000fffff R14: ffff888078498d68 R15: 0000000000000006 [ 89.189377][ T5821] FS: 000055555f141380(0000) GS:ffff8881261c7000(0000) knlGS:0000000000000000 [ 89.198310][ T5821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.204891][ T5821] CR2: 000055b1ac59e8a8 CR3: 000000007c32c000 CR4: 00000000003526f0 [ 89.212859][ T5821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.220835][ T5821] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.228896][ T5821] Call Trace: [ 89.232177][ T5821] [ 89.235110][ T5821] path_openat+0x2d91/0x3830 [ 89.240140][ T5821] ? arch_stack_walk+0xfc/0x150 [ 89.245005][ T5821] ? __pfx_path_openat+0x10/0x10 [ 89.249959][ T5821] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.256029][ T5821] do_filp_open+0x1fa/0x410 [ 89.260534][ T5821] ? __lock_acquire+0xab9/0xd20 [ 89.265379][ T5821] ? __pfx_do_filp_open+0x10/0x10 [ 89.270402][ T5821] ? _raw_spin_unlock+0x28/0x50 [ 89.275252][ T5821] ? alloc_fd+0x64c/0x6c0 [ 89.279582][ T5821] do_sys_openat2+0x121/0x1c0 [ 89.284276][ T5821] ? __pfx_do_sys_openat2+0x10/0x10 [ 89.289489][ T5821] ? rcu_is_watching+0x15/0xb0 [ 89.294266][ T5821] __x64_sys_openat+0x138/0x170 [ 89.299119][ T5821] do_syscall_64+0xfa/0x3b0 [ 89.303629][ T5821] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.308824][ T5821] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.314882][ T5821] ? clear_bhb_loop+0x60/0xb0 [ 89.319552][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.325439][ T5821] RIP: 0033:0x7f1f89436a39 [ 89.329860][ T5821] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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 [ 89.349460][ T5821] RSP: 002b:00007ffd0849e768 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 89.357882][ T5821] RAX: ffffffffffffffda RBX: 00007f1f8947f05e RCX: 00007f1f89436a39 [ 89.365844][ T5821] RDX: 00000000000c0342 RSI: 0000200000000100 RDI: 00000000ffffff9c [ 89.373804][ T5821] RBP: 00007f1f894af610 R08: 0000000000006155 R09: 0000000000000000 [ 89.381786][ T5821] R10: 00000000000001ff R11: 0000000000000246 R12: 0000000000000001 [ 89.389749][ T5821] R13: 00007ffd0849e938 R14: 0000000000000001 R15: 0000000000000001 [ 89.397718][ T5821] [ 89.400725][ T5821] Modules linked in: [ 89.404782][ T5821] ---[ end trace 0000000000000000 ]--- [ 89.410304][ T5821] RIP: 0010:may_open+0x462/0x470 [ 89.415260][ T5821] Code: 38 c1 0f 8c 9b fe ff ff 4c 89 ff e8 78 3f ec ff e9 8e fe ff ff e8 5e 85 8b ff 4c 89 f7 48 c7 c6 c0 22 79 8b e8 6f a8 f3 fe 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 [ 89.434913][ T5821] RSP: 0018:ffffc9000432f940 EFLAGS: 00010246 [ 89.441025][ T5821] RAX: 000000000000003a RBX: dffffc0000000000 RCX: d2735fd466bbdd00 [ 89.449093][ T5821] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 89.457095][ T5821] RBP: ffffffff8e099800 R08: ffff8880b8824293 R09: 1ffff11017104852 [ 89.465190][ T5821] R10: dffffc0000000000 R11: ffffed1017104853 R12: ffffc9000432fc20 [ 89.473226][ T5821] R13: 00000000000fffff R14: ffff888078498d68 R15: 0000000000000006 [ 89.481227][ T5821] FS: 000055555f141380(0000) GS:ffff8881261c7000(0000) knlGS:0000000000000000 [ 89.490654][ T5821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.497232][ T5821] CR2: 000055b1ac59e8a8 CR3: 000000007c32c000 CR4: 00000000003526f0 [ 89.505233][ T5821] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.513246][ T5821] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.521258][ T5821] Kernel panic - not syncing: Fatal exception [ 89.527699][ T5821] Kernel Offset: disabled [ 89.532023][ T5821] Rebooting in 86400 seconds..