./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1972401623 <...> Warning: Permanently added '10.128.1.20' (ED25519) to the list of known hosts. execve("./syz-executor1972401623", ["./syz-executor1972401623"], 0x7fffcfd34620 /* 10 vars */) = 0 brk(NULL) = 0x55558ec41000 brk(0x55558ec41d00) = 0x55558ec41d00 arch_prctl(ARCH_SET_FS, 0x55558ec41380) = 0 set_tid_address(0x55558ec41650) = 5849 set_robust_list(0x55558ec41660, 24) = 0 rseq(0x55558ec41ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1972401623", 4096) = 28 getrandom("\x7a\x53\x43\x45\xeb\x7f\x30\x01", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558ec41d00 brk(0x55558ec62d00) = 0x55558ec62d00 brk(0x55558ec63000) = 0x55558ec63000 mprotect(0x7fae10779000, 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) = 0x7fae08200000 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 munmap(0x7fae08200000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 [ 91.434179][ T5849] loop0: detected capacity change from 0 to 736 mount("/dev/loop0", "./file1", "iso9660", MS_RDONLY|MS_NOEXEC|MS_MANDLOCK|MS_NOATIME|MS_NODIRATIME|MS_SILENT, "") = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [ 91.481943][ T5849] ======================================================= [ 91.481943][ T5849] WARNING: The mand mount option has been deprecated and [ 91.481943][ T5849] and is ignored by this kernel. Remove the mand [ 91.481943][ T5849] option from the mount to silence this warning. [ 91.481943][ T5849] ======================================================= chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 91.597003][ T5849] VFS_BUG_ON_INODE(!IS_ANON_FILE(inode)) encountered for inode ffff88807ea40030 [ 91.597287][ T5849] ------------[ cut here ]------------ [ 91.612066][ T5849] kernel BUG at fs/namei.c:3474! [ 91.617068][ T5849] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 91.623326][ T5849] CPU: 1 UID: 0 PID: 5849 Comm: syz-executor197 Not tainted 6.16.0-rc4-next-20250704-syzkaller #0 PREEMPT(full) [ 91.635223][ T5849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 91.645423][ T5849] RIP: 0010:may_open+0x4b1/0x4c0 [ 91.650386][ T5849] Code: 38 c1 0f 8c 1e fd ff ff 4c 89 e7 e8 09 26 ec ff e9 11 fd ff ff e8 3f 89 87 ff 4c 89 f7 48 c7 c6 c0 5c 99 8b e8 60 00 f0 fe 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 91.669990][ T5849] RSP: 0018:ffffc9000421f940 EFLAGS: 00010246 [ 91.676057][ T5849] RAX: 000000000000004d RBX: dffffc0000000000 RCX: 6dad82b3bd77d600 [ 91.684026][ T5849] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 91.691994][ T5849] RBP: 000000000010f842 R08: ffff8880b8724293 R09: 1ffff110170e4852 [ 91.699962][ T5849] R10: dffffc0000000000 R11: ffffed10170e4853 R12: 0000000000000000 [ 91.707933][ T5849] R13: ffffffff8e29bea0 R14: ffff88807ea40030 R15: 0000000000000006 [ 91.715926][ T5849] FS: 000055558ec41380(0000) GS:ffff888125ce7000(0000) knlGS:0000000000000000 [ 91.724886][ T5849] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.731480][ T5849] CR2: 000000000066c7e0 CR3: 0000000070c0a000 CR4: 00000000003526f0 [ 91.739495][ T5849] Call Trace: [ 91.742792][ T5849] [ 91.745736][ T5849] path_openat+0x2d91/0x3830 [ 91.750338][ T5849] ? arch_stack_walk+0xfc/0x150 [ 91.755206][ T5849] ? __pfx_path_openat+0x10/0x10 [ 91.760142][ T5849] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.766213][ T5849] do_filp_open+0x1fa/0x410 [ 91.770714][ T5849] ? __lock_acquire+0xab9/0xd20 [ 91.775592][ T5849] ? __pfx_do_filp_open+0x10/0x10 [ 91.780622][ T5849] ? _raw_spin_unlock+0x28/0x50 [ 91.785491][ T5849] ? alloc_fd+0x64c/0x6c0 [ 91.789893][ T5849] do_sys_openat2+0x121/0x1c0 [ 91.794592][ T5849] ? __pfx_do_sys_openat2+0x10/0x10 [ 91.799802][ T5849] ? rcu_is_watching+0x15/0xb0 [ 91.804566][ T5849] __x64_sys_openat+0x138/0x170 [ 91.809425][ T5849] do_syscall_64+0xfa/0x3b0 [ 91.813945][ T5849] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.819521][ T5849] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.825590][ T5849] ? clear_bhb_loop+0x60/0xb0 [ 91.830268][ T5849] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.836154][ T5849] RIP: 0033:0x7fae10706679 [ 91.840575][ T5849] 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 [ 91.860178][ T5849] RSP: 002b:00007ffd8ca5cbc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 91.868591][ T5849] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fae10706679 [ 91.876560][ T5849] RDX: 0000000000107842 RSI: 0000200000000040 RDI: 00000000ffffff9c [ 91.884533][ T5849] RBP: 00007fae10779610 R08: 00000000000005b3 R09: 0000000000000000 [ 91.892510][ T5849] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 91.900997][ T5849] R13: 00007ffd8ca5cd98 R14: 0000000000000001 R15: 0000000000000001 [ 91.908985][ T5849] [ 91.912016][ T5849] Modules linked in: [ 91.917361][ T5849] ---[ end trace 0000000000000000 ]--- [ 91.923066][ T5849] RIP: 0010:may_open+0x4b1/0x4c0 [ 91.928018][ T5849] Code: 38 c1 0f 8c 1e fd ff ff 4c 89 e7 e8 09 26 ec ff e9 11 fd ff ff e8 3f 89 87 ff 4c 89 f7 48 c7 c6 c0 5c 99 8b e8 60 00 f0 fe 90 <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 91.947797][ T5849] RSP: 0018:ffffc9000421f940 EFLAGS: 00010246 [ 91.954024][ T5849] RAX: 000000000000004d RBX: dffffc0000000000 RCX: 6dad82b3bd77d600 [ 91.962073][ T5849] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 91.970064][ T5849] RBP: 000000000010f842 R08: ffff8880b8724293 R09: 1ffff110170e4852 [ 91.978095][ T5849] R10: dffffc0000000000 R11: ffffed10170e4853 R12: 0000000000000000 [ 91.986252][ T5849] R13: ffffffff8e29bea0 R14: ffff88807ea40030 R15: 0000000000000006 [ 91.994378][ T5849] FS: 000055558ec41380(0000) GS:ffff888125ce7000(0000) knlGS:0000000000000000 [ 92.003380][ T5849] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.009974][ T5849] CR2: 000000000066c7e0 CR3: 0000000070c0a000 CR4: 00000000003526f0 [ 92.018014][ T5849] Kernel panic - not syncing: Fatal exception [ 92.024404][ T5849] Kernel Offset: disabled [ 92.028742][ T5849] Rebooting in 86400 seconds..