./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1890353788 <...> Warning: Permanently added '10.128.1.137' (ED25519) to the list of known hosts. execve("./syz-executor1890353788", ["./syz-executor1890353788"], 0x7ffcf6b69520 /* 10 vars */) = 0 brk(NULL) = 0x55557b00a000 brk(0x55557b00ad00) = 0x55557b00ad00 arch_prctl(ARCH_SET_FS, 0x55557b00a380) = 0 set_tid_address(0x55557b00a650) = 5839 set_robust_list(0x55557b00a660, 24) = 0 rseq(0x55557b00aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1890353788", 4096) = 28 getrandom("\xd8\x86\x3a\xa3\xf3\xe8\x8a\xf1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557b00ad00 brk(0x55557b02bd00) = 0x55557b02bd00 brk(0x55557b02c000) = 0x55557b02c000 mprotect(0x7f27d02bd000, 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(0x55557b00a660, 24 [pid 5839] <... clone resumed>, child_tidptr=0x55557b00a650) = 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) = 0x7f27c7c00000 [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(0x7f27c7c00000, 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 [ 80.106845][ T5841] loop0: detected capacity change from 0 to 32768 [ 80.130813][ T5841] ======================================================= [ 80.130813][ T5841] WARNING: The mand mount option has been deprecated and [ 80.130813][ T5841] and is ignored by this kernel. Remove the mand [pid 5841] mount("/dev/loop0", "./file1", "ocfs2", MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_LAZYTIME, "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) [ 80.130813][ T5841] option from the mount to silence this warning. [ 80.130813][ T5841] ======================================================= [ 80.185648][ T5841] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [pid 5841] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 0733) = 4 [ 80.209523][ T30] audit: type=1800 audit(1752390615.298:2): pid=5841 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor189" name="file1" dev="loop0" ino=17058 res=0 errno=0 [ 80.239616][ T5841] ------------[ cut here ]------------ [ 80.245165][ T5841] kernel BUG at fs/ocfs2/aops.c:1158! [ 80.250697][ T5841] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 80.256960][ T5841] CPU: 1 UID: 0 PID: 5841 Comm: syz-executor189 Not tainted 6.16.0-rc5-syzkaller-00266-g3f31a806a62e #0 PREEMPT(full) [ 80.269366][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.279417][ T5841] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 80.286182][ T5841] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 ca 4d 9c 8d ba 69 04 00 00 48 c7 c1 80 2a ca 8b e8 58 45 1b 00 90 0f 0b e8 60 5c 2a fe 90 <0f> 0b e8 58 5c 2a fe 90 0f 0b e8 50 5c 2a fe 90 0f 0b e8 48 5c 2a [ 80.305785][ T5841] RSP: 0018:ffffc90003f5e820 EFLAGS: 00010293 [ 80.311843][ T5841] RAX: ffffffff8395d5f0 RBX: ffff88803533a014 RCX: ffff88802b26da00 [ 80.319804][ T5841] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 80.327775][ T5841] RBP: ffffc90003f5eb50 R08: ffff888072824023 R09: 1ffff1100e504804 [ 80.335747][ T5841] R10: dffffc0000000000 R11: ffffed100e504805 R12: ffff888035448000 [ 80.343716][ T5841] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88803533a014 [ 80.351678][ T5841] FS: 000055557b00a380(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 [ 80.360595][ T5841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.367167][ T5841] CR2: 0000200000001200 CR3: 00000000737c4000 CR4: 00000000003526f0 [ 80.375134][ T5841] Call Trace: [ 80.378401][ T5841] [ 80.381325][ T5841] ? __pfx_ocfs2_write_cluster_by_desc+0x10/0x10 [ 80.387663][ T5841] ? jbd2_write_access_granted+0x69/0x310 [ 80.393385][ T5841] ? __ocfs2_journal_access+0x621/0x820 [ 80.398926][ T5841] ? ocfs2_grab_folios_for_write+0xa57/0xd80 [ 80.404905][ T5841] ? __pfx_ocfs2_grab_folios_for_write+0x10/0x10 [ 80.411230][ T5841] ? rcu_is_watching+0x15/0xb0 [ 80.415992][ T5841] ? ocfs2_write_begin_nolock+0xeb9/0x4340 [ 80.421787][ T5841] ? ocfs2_metadata_cache_get_super+0x43/0x80 [ 80.427850][ T5841] ? ocfs2_inode_cache_get_super+0xd/0x40 [ 80.433560][ T5841] ocfs2_write_begin_nolock+0x31a3/0x4340 [ 80.439282][ T5841] ? __pfx_ocfs2_write_begin_nolock+0x10/0x10 [ 80.445339][ T5841] ? __bfs+0x154/0x2a0 [ 80.449492][ T5841] ? check_path+0x21/0x40 [ 80.453833][ T5841] ? check_noncircular+0xe0/0x160 [ 80.458851][ T5841] ? lockdep_unlock+0x89/0x120 [ 80.463615][ T5841] ? validate_chain+0x897/0x2140 [ 80.468545][ T5841] ? __pfx_ocfs2_journal_access_di+0x10/0x10 [ 80.474535][ T5841] ? __lock_acquire+0xab9/0xd20 [ 80.479385][ T5841] ? ocfs2_dio_wr_get_block+0x8ee/0x1770 [ 80.485012][ T5841] ? down_write+0x162/0x1f0 [ 80.489519][ T5841] ? __pfx_down_write+0x10/0x10 [ 80.494356][ T5841] ? __kasan_kmalloc+0x93/0xb0 [ 80.499126][ T5841] ? ocfs2_dio_wr_get_block+0x476/0x1770 [ 80.504754][ T5841] ocfs2_dio_wr_get_block+0xb6f/0x1770 [ 80.510206][ T5841] ? __pfx_ocfs2_dio_wr_get_block+0x10/0x10 [ 80.516089][ T5841] ? iov_iter_advance+0x8b/0x1c0 [ 80.521015][ T5841] ? iov_iter_extract_pages+0x396/0x5e0 [ 80.526546][ T5841] ? __pfx_ocfs2_dio_wr_get_block+0x10/0x10 [ 80.532426][ T5841] __blockdev_direct_IO+0x16da/0x33d0 [ 80.537794][ T5841] ? __pfx___blockdev_direct_IO+0x10/0x10 [ 80.543498][ T5841] ? __pfx_invalidate_inode_pages2_range+0x10/0x10 [ 80.549997][ T5841] ? __pfx_ocfs2_dio_wr_get_block+0x10/0x10 [ 80.555911][ T5841] ? filemap_write_and_wait_range+0x182/0x310 [ 80.561985][ T5841] ? __pfx_filemap_write_and_wait_range+0x10/0x10 [ 80.568408][ T5841] ? __pfx_ocfs2_dio_wr_get_block+0x10/0x10 [ 80.574301][ T5841] ocfs2_direct_IO+0x25f/0x2d0 [ 80.579065][ T5841] generic_file_direct_write+0x1db/0x3e0 [ 80.584693][ T5841] ? file_update_time+0x416/0x490 [ 80.589702][ T5841] __generic_file_write_iter+0x11d/0x230 [ 80.595358][ T5841] ? ocfs2_file_write_iter+0x1551/0x1d10 [ 80.600982][ T5841] ocfs2_file_write_iter+0x157a/0x1d10 [ 80.606435][ T5841] ? __pfx_ocfs2_file_write_iter+0x10/0x10 [ 80.612225][ T5841] ? __lock_acquire+0xab9/0xd20 [ 80.617064][ T5841] ? finish_task_switch+0x18b/0x950 [ 80.622256][ T5841] ? finish_task_switch+0x266/0x950 [ 80.627442][ T5841] ? lockdep_hardirqs_on+0x9c/0x150 [ 80.632634][ T5841] do_iter_readv_writev+0x56b/0x7f0 [ 80.637822][ T5841] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 80.643527][ T5841] ? rcu_read_lock_any_held+0xb3/0x120 [ 80.648974][ T5841] vfs_writev+0x31a/0x960 [ 80.653289][ T5841] ? __pfx_vfs_writev+0x10/0x10 [ 80.658123][ T5841] ? _raw_spin_lock_irq+0xae/0xf0 [ 80.663135][ T5841] ? _raw_spin_unlock_irq+0x2e/0x50 [ 80.668324][ T5841] do_writev+0x14d/0x2d0 [ 80.672553][ T5841] ? __pfx_do_writev+0x10/0x10 [ 80.677301][ T5841] do_syscall_64+0xfa/0x3b0 [ 80.681788][ T5841] ? lockdep_hardirqs_on+0x9c/0x150 [ 80.686977][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 80.693023][ T5841] ? clear_bhb_loop+0x60/0xb0 [ 80.697683][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 80.703559][ T5841] RIP: 0033:0x7f27d0245b19 [ 80.707970][ 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 [ 80.727558][ T5841] RSP: 002b:00007ffd367557e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 80.735957][ T5841] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f27d0245b19 [ 80.743915][ T5841] RDX: 0000000000000001 RSI: 0000200000000140 RDI: 0000000000000004 [ 80.751872][ T5841] RBP: 00007f27d02bd5f0 R08: 000055557b00b4c0 R09: 000055557b00b4c0 [ 80.759830][ T5841] R10: 0000000000004440 R11: 0000000000000246 R12: 00007ffd36755810 [ 80.767785][ T5841] R13: 00007ffd36755a38 R14: 431bde82d7b634db R15: 00007f27d028e03b [ 80.775746][ T5841] [ 80.778746][ T5841] Modules linked in: [ 80.782769][ T5841] ---[ end trace 0000000000000000 ]--- [ 80.788304][ T5841] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 80.795096][ T5841] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 ca 4d 9c 8d ba 69 04 00 00 48 c7 c1 80 2a ca 8b e8 58 45 1b 00 90 0f 0b e8 60 5c 2a fe 90 <0f> 0b e8 58 5c 2a fe 90 0f 0b e8 50 5c 2a fe 90 0f 0b e8 48 5c 2a [ 80.814739][ T5841] RSP: 0018:ffffc90003f5e820 EFLAGS: 00010293 [ 80.820844][ T5841] RAX: ffffffff8395d5f0 RBX: ffff88803533a014 RCX: ffff88802b26da00 [ 80.828854][ T5841] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 80.836874][ T5841] RBP: ffffc90003f5eb50 R08: ffff888072824023 R09: 1ffff1100e504804 [ 80.844838][ T5841] R10: dffffc0000000000 R11: ffffed100e504805 R12: ffff888035448000 [ 80.852841][ T5841] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88803533a014 [ 80.860845][ T5841] FS: 000055557b00a380(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 [ 80.869808][ T5841] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.876394][ T5841] CR2: 0000200000001200 CR3: 00000000737c4000 CR4: 00000000003526f0 [ 80.884482][ T5841] Kernel panic - not syncing: Fatal exception [ 80.890869][ T5841] Kernel Offset: disabled [ 80.895186][ T5841] Rebooting in 86400 seconds..