./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2718398862 <...> Warning: Permanently added '10.128.0.84' (ED25519) to the list of known hosts. execve("./syz-executor2718398862", ["./syz-executor2718398862"], 0x7ffd2fd00140 /* 10 vars */) = 0 brk(NULL) = 0x555583b44000 brk(0x555583b44d00) = 0x555583b44d00 arch_prctl(ARCH_SET_FS, 0x555583b44380) = 0 set_tid_address(0x555583b44650) = 5842 set_robust_list(0x555583b44660, 24) = 0 rseq(0x555583b44ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2718398862", 4096) = 28 getrandom("\xbd\xf5\x7b\x20\x98\x50\xb7\xde", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555583b44d00 brk(0x555583b65d00) = 0x555583b65d00 brk(0x555583b66000) = 0x555583b66000 mprotect(0x7fbdd4e6e000, 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 5843 attached [pid 5843] set_robust_list(0x555583b44660, 24) = 0 [pid 5842] <... clone resumed>, child_tidptr=0x555583b44650) = 5843 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 [pid 5843] close(3) = 0 [pid 5843] write(1, "executing program\n", 18executing program ) = 18 [pid 5843] memfd_create("syzkaller", 0) = 3 [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fbdcc800000 [pid 5843] 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"..., 376832) = 376832 [pid 5843] munmap(0x7fbdcc800000, 138412032) = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5843] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5843] close(3) = 0 [pid 5843] close(4) = 0 [pid 5843] mkdir("./file1", 0777) = 0 [ 87.628546][ T5843] loop0: detected capacity change from 0 to 736 [ 87.668084][ T5843] ======================================================= [ 87.668084][ T5843] WARNING: The mand mount option has been deprecated and [ 87.668084][ T5843] and is ignored by this kernel. Remove the mand [ 87.668084][ T5843] option from the mount to silence this warning. [ 87.668084][ T5843] ======================================================= [pid 5843] mount("/dev/loop0", "./file1", "iso9660", MS_RDONLY|MS_NOEXEC|MS_MANDLOCK|MS_NOATIME|MS_NODIRATIME|MS_SILENT, "") = 0 [pid 5843] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5843] chdir("./file1") = 0 [pid 5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 87.761517][ T5843] VFS_BUG_ON_INODE(!IS_ANON_FILE(inode)) encountered for inode ffff8880730d0568 [ 87.761711][ T5843] ------------[ cut here ]------------ [ 87.777375][ T5843] kernel BUG at fs/namei.c:3483! [ 87.782538][ T5843] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 87.788829][ T5843] CPU: 0 UID: 0 PID: 5843 Comm: syz-executor271 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) [ 87.799500][ T5843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.809564][ T5843] RIP: 0010:may_open+0x4b1/0x4c0 [ 87.814524][ T5843] Code: 38 c1 0f 8c 1e fd ff ff 4c 89 e7 e8 69 25 ec ff e9 11 fd ff ff e8 9f cd 8a ff 4c 89 f7 48 c7 c6 40 40 99 8b e8 70 cb f2 fe 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 87.834221][ T5843] RSP: 0018:ffffc9000405f940 EFLAGS: 00010246 [ 87.840374][ T5843] RAX: 000000000000004d RBX: dffffc0000000000 RCX: 6dc7dd2d1b3f7f00 [ 87.848343][ T5843] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 87.856312][ T5843] RBP: 000000000014b041 R08: ffff8880b8724293 R09: 1ffff110170e4852 [ 87.864292][ T5843] R10: dffffc0000000000 R11: ffffed10170e4853 R12: 0000000000000000 [ 87.872265][ T5843] R13: ffffffff8e29ca80 R14: ffff8880730d0568 R15: 0000000000000002 [ 87.880244][ T5843] FS: 0000555583b44380(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000 [ 87.889180][ T5843] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.895778][ T5843] CR2: 00007f2ab7a64000 CR3: 000000007273c000 CR4: 00000000003526f0 [ 87.903752][ T5843] Call Trace: [ 87.907035][ T5843] [ 87.909973][ T5843] path_openat+0x2d91/0x3830 [ 87.914572][ T5843] ? arch_stack_walk+0xfc/0x150 [ 87.919438][ T5843] ? __pfx_path_openat+0x10/0x10 [ 87.924384][ T5843] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.930457][ T5843] do_filp_open+0x1fa/0x410 [ 87.934964][ T5843] ? __lock_acquire+0xab9/0xd20 [ 87.939815][ T5843] ? __pfx_do_filp_open+0x10/0x10 [ 87.944936][ T5843] ? _raw_spin_unlock+0x28/0x50 [ 87.949796][ T5843] ? alloc_fd+0x64c/0x6c0 [ 87.954132][ T5843] do_sys_openat2+0x121/0x1c0 [ 87.958812][ T5843] ? __pfx_do_sys_openat2+0x10/0x10 [ 87.964015][ T5843] ? rcu_is_watching+0x15/0xb0 [ 87.968783][ T5843] __x64_sys_openat+0x138/0x170 [ 87.973648][ T5843] do_syscall_64+0xfa/0x3b0 [ 87.978165][ T5843] ? lockdep_hardirqs_on+0x9c/0x150 [ 87.983369][ T5843] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.989459][ T5843] ? clear_bhb_loop+0x60/0xb0 [ 87.994140][ T5843] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.000034][ T5843] RIP: 0033:0x7fbdd4dfaad9 [ 88.004481][ T5843] 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 [ 88.024093][ T5843] RSP: 002b:00007ffcdac3c728 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 88.032591][ T5843] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fbdd4dfaad9 [ 88.040562][ T5843] RDX: 0000000000143041 RSI: 00002000000000c0 RDI: 00000000ffffff9c [ 88.048531][ T5843] RBP: 00007fbdd4e6e5f0 R08: 00000000000005b3 R09: 0000555583b454c0 [ 88.056501][ T5843] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcdac3c750 [ 88.064473][ T5843] R13: 00007ffcdac3c978 R14: 431bde82d7b634db R15: 00007fbdd4e4303b [ 88.072448][ T5843] [ 88.075469][ T5843] Modules linked in: [ 88.079558][ T5843] ---[ end trace 0000000000000000 ]--- [ 88.085143][ T5843] RIP: 0010:may_open+0x4b1/0x4c0 [ 88.090116][ T5843] Code: 38 c1 0f 8c 1e fd ff ff 4c 89 e7 e8 69 25 ec ff e9 11 fd ff ff e8 9f cd 8a ff 4c 89 f7 48 c7 c6 40 40 99 8b e8 70 cb f2 fe 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 88.109869][ T5843] RSP: 0018:ffffc9000405f940 EFLAGS: 00010246 [ 88.116026][ T5843] RAX: 000000000000004d RBX: dffffc0000000000 RCX: 6dc7dd2d1b3f7f00 [ 88.124066][ T5843] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 88.132047][ T5843] RBP: 000000000014b041 R08: ffff8880b8724293 R09: 1ffff110170e4852 [ 88.140072][ T5843] R10: dffffc0000000000 R11: ffffed10170e4853 R12: 0000000000000000 [ 88.148088][ T5843] R13: ffffffff8e29ca80 R14: ffff8880730d0568 R15: 0000000000000002 [ 88.156100][ T5843] FS: 0000555583b44380(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000 [ 88.165084][ T5843] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.171675][ T5843] CR2: 00007f2ab7a64000 CR3: 000000007273c000 CR4: 00000000003526f0 [ 88.179691][ T5843] Kernel panic - not syncing: Fatal exception [ 88.186108][ T5843] Kernel Offset: disabled [ 88.190438][ T5843] Rebooting in 86400 seconds..