./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor775666756 <...> Warning: Permanently added '10.128.1.111' (ED25519) to the list of known hosts. execve("./syz-executor775666756", ["./syz-executor775666756"], 0x7ffd7577b7f0 /* 10 vars */) = 0 brk(NULL) = 0x55555d309000 brk(0x55555d309d00) = 0x55555d309d00 arch_prctl(ARCH_SET_FS, 0x55555d309380) = 0 set_tid_address(0x55555d309650) = 5840 set_robust_list(0x55555d309660, 24) = 0 rseq(0x55555d309ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor775666756", 4096) = 27 getrandom("\xc1\x27\xc9\x8c\x39\x4a\x5b\x29", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555d309d00 brk(0x55555d32ad00) = 0x55555d32ad00 brk(0x55555d32b000) = 0x55555d32b000 mprotect(0x7f1eea880000, 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 5841 attached [pid 5841] set_robust_list(0x55555d309660, 24 [pid 5840] <... clone resumed>, child_tidptr=0x55555d309650) = 5841 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] write(1, "executing program\n", 18executing program ) = 18 [pid 5841] memfd_create("syzkaller", 0) = 3 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1ee2200000 [pid 5841] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5841] munmap(0x7f1ee2200000, 138412032) = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5841] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5841] close(3) = 0 [pid 5841] close(4) = 0 [pid 5841] mkdir("./file1", 0777) = 0 [ 107.925769][ T5841] loop0: detected capacity change from 0 to 32768 [ 107.958522][ T5841] ======================================================= [ 107.958522][ T5841] WARNING: The mand mount option has been deprecated and [ 107.958522][ T5841] and is ignored by this kernel. Remove the mand [ 107.958522][ T5841] option from the mount to silence this warning. [ 107.958522][ T5841] ======================================================= [pid 5841] mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,nouser_xattr,coherency=full,data=writeback,localalloc=00000000000000000001,acl,no"...) = 0 [pid 5841] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5841] chdir("./file1") = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5841] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 4 [ 108.020834][ T5841] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [ 108.072702][ T5841] ------------[ cut here ]------------ [ 108.078398][ T5841] kernel BUG at fs/ocfs2/aops.c:1158! [ 108.083839][ T5841] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 108.090096][ T5841] CPU: 1 UID: 0 PID: 5841 Comm: syz-executor775 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) [ 108.102514][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 108.112575][ T5841] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 108.119381][ T5841] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 fd d2 9a 8d ba 69 04 00 00 48 c7 c1 80 1c ca 8b e8 58 45 1b 00 90 0f 0b e8 20 77 2a fe 90 <0f> 0b e8 18 77 2a fe 90 0f 0b e8 10 77 2a fe 90 0f 0b e8 08 77 2a [ 108.139085][ T5841] RSP: 0018:ffffc9000430ee60 EFLAGS: 00010293 [ 108.145173][ T5841] RAX: ffffffff8395d6d0 RBX: ffff8880652a0014 RCX: ffff888033f25a00 [ 108.153160][ T5841] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 108.161139][ T5841] RBP: ffffc9000430f190 R08: ffff888076575ca3 R09: 1ffff1100ecaeb94 [ 108.169127][ T5841] R10: dffffc0000000000 R11: ffffed100ecaeb95 R12: ffff88803379c000 [ 108.177105][ T5841] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880652a0014 [ 108.185083][ T5841] FS: 000055555d309380(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000 [ 108.194020][ T5841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.200624][ T5841] CR2: 00007f1eea8840f8 CR3: 0000000077f78000 CR4: 00000000003526f0 [ 108.208606][ T5841] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 108.216608][ T5841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 108.224585][ T5841] Call Trace: [ 108.227866][ T5841] [ 108.230895][ T5841] ? __pfx___folio_batch_add_and_move+0x10/0x10 [ 108.237141][ T5841] ? __pfx_workingset_update_node+0x10/0x10 [ 108.243050][ T5841] ? __pfx_ocfs2_write_cluster_by_desc+0x10/0x10 [ 108.249386][ T5841] ? filemap_add_folio+0x1af/0x270 [ 108.254517][ T5841] ? folio_mapping+0x16f/0x240 [ 108.259285][ T5841] ? folio_wait_stable+0x6f/0x90 [ 108.264275][ T5841] ? ocfs2_grab_folios_for_write+0xa57/0xd80 [ 108.270267][ T5841] ? __pfx_ocfs2_grab_folios_for_write+0x10/0x10 [ 108.276617][ T5841] ? rcu_is_watching+0x15/0xb0 [ 108.281399][ T5841] ? ocfs2_write_begin_nolock+0xeb9/0x4340 [ 108.287208][ T5841] ? ocfs2_metadata_cache_get_super+0x43/0x80 [ 108.293301][ T5841] ? ocfs2_inode_cache_get_super+0xd/0x40 [ 108.299043][ T5841] ocfs2_write_begin_nolock+0x31a3/0x4340 [ 108.304793][ T5841] ? __pfx_ocfs2_write_begin_nolock+0x10/0x10 [ 108.310868][ T5841] ? __bfs+0x154/0x2a0 [ 108.314963][ T5841] ? check_path+0x21/0x40 [ 108.319305][ T5841] ? check_noncircular+0xe0/0x160 [ 108.324340][ T5841] ? lockdep_unlock+0x89/0x120 [ 108.329114][ T5841] ? validate_chain+0x897/0x2140 [ 108.334067][ T5841] ? __pfx_ocfs2_journal_access_di+0x10/0x10 [ 108.340096][ T5841] ? __lock_acquire+0xab9/0xd20 [ 108.344961][ T5841] ? ocfs2_write_begin+0x198/0x310 [ 108.350085][ T5841] ? down_write+0x162/0x1f0 [ 108.354602][ T5841] ? __pfx_down_write+0x10/0x10 [ 108.359462][ T5841] ocfs2_write_begin+0x1bb/0x310 [ 108.364416][ T5841] ? __pfx_ocfs2_write_begin+0x10/0x10 [ 108.369889][ T5841] generic_perform_write+0x2c4/0x910 [ 108.375197][ T5841] ? __pfx_generic_perform_write+0x10/0x10 [ 108.381021][ T5841] ? file_update_time+0x2da/0x490 [ 108.386092][ T5841] ? __generic_file_write_iter+0xf9/0x230 [ 108.391817][ T5841] ? ocfs2_file_write_iter+0x1551/0x1d10 [ 108.397466][ T5841] ocfs2_file_write_iter+0x157a/0x1d10 [ 108.402935][ T5841] ? __pfx_ocfs2_file_write_iter+0x10/0x10 [ 108.408745][ T5841] ? trace_sched_exit_tp+0x38/0x120 [ 108.413949][ T5841] ? __lock_acquire+0xab9/0xd20 [ 108.418812][ T5841] ? rcu_read_lock_any_held+0xb3/0x120 [ 108.424283][ T5841] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 108.430224][ T5841] vfs_write+0x54b/0xa90 [ 108.434482][ T5841] ? __pfx_ocfs2_file_write_iter+0x10/0x10 [ 108.440304][ T5841] ? __pfx_vfs_write+0x10/0x10 [ 108.445078][ T5841] ? _raw_spin_unlock_irq+0x23/0x50 [ 108.450296][ T5841] ? _raw_spin_unlock_irq+0x2e/0x50 [ 108.455516][ T5841] ksys_write+0x145/0x250 [ 108.459849][ T5841] ? __pfx_ksys_write+0x10/0x10 [ 108.464708][ T5841] do_syscall_64+0xfa/0x3b0 [ 108.469213][ T5841] ? lockdep_hardirqs_on+0x9c/0x150 [ 108.474419][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 108.480492][ T5841] ? clear_bhb_loop+0x60/0xb0 [ 108.485183][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 108.491082][ T5841] RIP: 0033:0x7f1eea808b19 [ 108.495509][ T5841] 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 [ 108.515117][ T5841] RSP: 002b:00007ffe91eece28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 108.523574][ T5841] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f1eea808b19 [ 108.531552][ T5841] RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 0000000000000004 [ 108.539526][ T5841] RBP: 00007f1eea8805f0 R08: 000055555d30a4c0 R09: 000055555d30a4c0 [ 108.547519][ T5841] R10: 0000000000004440 R11: 0000000000000246 R12: 00007ffe91eece50 [ 108.555493][ T5841] R13: 00007ffe91eed078 R14: 431bde82d7b634db R15: 00007f1eea85103b [ 108.563564][ T5841] [ 108.566591][ T5841] Modules linked in: [ 108.570655][ T5841] ---[ end trace 0000000000000000 ]--- [ 108.576207][ T5841] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 108.583223][ T5841] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 fd d2 9a 8d ba 69 04 00 00 48 c7 c1 80 1c ca 8b e8 58 45 1b 00 90 0f 0b e8 20 77 2a fe 90 <0f> 0b e8 18 77 2a fe 90 0f 0b e8 10 77 2a fe 90 0f 0b e8 08 77 2a [ 108.602938][ T5841] RSP: 0018:ffffc9000430ee60 EFLAGS: 00010293 [ 108.610052][ T5841] RAX: ffffffff8395d6d0 RBX: ffff8880652a0014 RCX: ffff888033f25a00 [ 108.618147][ T5841] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 108.626666][ T5841] RBP: ffffc9000430f190 R08: ffff888076575ca3 R09: 1ffff1100ecaeb94 [ 108.635048][ T5841] R10: dffffc0000000000 R11: ffffed100ecaeb95 R12: ffff88803379c000 [ 108.643108][ T5841] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880652a0014 [ 108.651475][ T5841] FS: 000055555d309380(0000) GS:ffff888125d86000(0000) knlGS:0000000000000000 [ 108.660566][ T5841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.667213][ T5841] CR2: 00007f1eea8840f8 CR3: 0000000077f78000 CR4: 00000000003526f0 [ 108.675410][ T5841] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 108.683401][ T5841] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 108.691437][ T5841] Kernel panic - not syncing: Fatal exception [ 108.698015][ T5841] Kernel Offset: disabled [ 108.702366][ T5841] Rebooting in 86400 seconds..