./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor249946715 <...> Warning: Permanently added '10.128.1.12' (ED25519) to the list of known hosts. execve("./syz-executor249946715", ["./syz-executor249946715"], 0x7ffc2c915360 /* 10 vars */) = 0 brk(NULL) = 0x55558172e000 brk(0x55558172ed00) = 0x55558172ed00 arch_prctl(ARCH_SET_FS, 0x55558172e380) = 0 set_tid_address(0x55558172e650) = 5820 set_robust_list(0x55558172e660, 24) = 0 rseq(0x55558172eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor249946715", 4096) = 27 getrandom("\x42\x70\xb8\xf1\x8f\x02\x2b\xa3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558172ed00 brk(0x55558174fd00) = 0x55558174fd00 brk(0x555581750000) = 0x555581750000 mprotect(0x7f56f6ff0000, 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 executing program write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f56eea00000 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 munmap(0x7f56eea00000, 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 [ 86.590049][ T5820] loop0: detected capacity change from 0 to 32768 [ 86.624970][ T5820] ======================================================= [ 86.624970][ T5820] WARNING: The mand mount option has been deprecated and [ 86.624970][ T5820] and is ignored by this kernel. Remove the mand [ 86.624970][ T5820] option from the mount to silence this warning. [ 86.624970][ T5820] ======================================================= 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 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 86.681405][ T5820] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 4 open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_DIRECT|O_CLOEXEC) = 5 ftruncate(5, 35946491) = 0 [ 86.749024][ T5820] ------------[ cut here ]------------ [ 86.754564][ T5820] kernel BUG at fs/ocfs2/aops.c:1158! [ 86.760095][ T5820] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 86.766353][ T5820] CPU: 0 UID: 0 PID: 5820 Comm: syz-executor249 Not tainted 6.16.0-rc3-syzkaller-00057-g92ca6c498a5e #0 PREEMPT(full) [ 86.778770][ T5820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.789076][ T5820] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 86.795856][ T5820] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 39 e1 9a 8d ba 69 04 00 00 48 c7 c1 00 1f ca 8b e8 58 45 1b 00 90 0f 0b e8 70 65 2a fe 90 <0f> 0b e8 68 65 2a fe 90 0f 0b e8 60 65 2a fe 90 0f 0b e8 58 65 2a [ 86.815456][ T5820] RSP: 0018:ffffc90003d6e9e0 EFLAGS: 00010293 [ 86.821518][ T5820] RAX: ffffffff8395e6b0 RBX: ffff888078416014 RCX: ffff888033f33c00 [ 86.829483][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 86.837446][ T5820] RBP: ffffc90003d6ed10 R08: ffff888073170723 R09: 1ffff1100e62e0e4 [ 86.845409][ T5820] R10: dffffc0000000000 R11: ffffed100e62e0e5 R12: ffff8880340c0000 [ 86.853375][ T5820] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888078416014 [ 86.861339][ T5820] FS: 000055558172e380(0000) GS:ffff888125c83000(0000) knlGS:0000000000000000 [ 86.870259][ T5820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.876835][ T5820] CR2: 000000000066c7e0 CR3: 0000000072ef4000 CR4: 00000000003526f0 [ 86.884806][ T5820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.892767][ T5820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.900730][ T5820] Call Trace: [ 86.904000][ T5820] [ 86.906926][ T5820] ? __pfx___folio_batch_add_and_move+0x10/0x10 [ 86.913160][ T5820] ? __pfx_workingset_update_node+0x10/0x10 [ 86.919050][ T5820] ? __pfx_ocfs2_write_cluster_by_desc+0x10/0x10 [ 86.925459][ T5820] ? filemap_add_folio+0x1af/0x270 [ 86.930565][ T5820] ? folio_mapping+0x16f/0x240 [ 86.935319][ T5820] ? folio_wait_stable+0x6f/0x90 [ 86.940256][ T5820] ? ocfs2_grab_folios_for_write+0xa57/0xd80 [ 86.946250][ T5820] ? __pfx_ocfs2_grab_folios_for_write+0x10/0x10 [ 86.952587][ T5820] ? rcu_is_watching+0x15/0xb0 [ 86.957362][ T5820] ? ocfs2_write_begin_nolock+0xeb9/0x4340 [ 86.963162][ T5820] ? ocfs2_metadata_cache_get_super+0x43/0x80 [ 86.969224][ T5820] ? ocfs2_inode_cache_get_super+0xd/0x40 [ 86.974946][ T5820] ocfs2_write_begin_nolock+0x31a3/0x4340 [ 86.980669][ T5820] ? __pfx_ocfs2_write_begin_nolock+0x10/0x10 [ 86.986729][ T5820] ? __lock_acquire+0xab9/0xd20 [ 86.991578][ T5820] ? __pfx_ocfs2_read_inode_block+0x10/0x10 [ 86.997465][ T5820] ? __pfx_ocfs2_journal_access_di+0x10/0x10 [ 87.003455][ T5820] ? __lock_acquire+0xab9/0xd20 [ 87.008301][ T5820] ? ocfs2_write_begin+0x198/0x310 [ 87.013404][ T5820] ? __pfx_set_normalized_timespec64+0x10/0x10 [ 87.019553][ T5820] ? down_write+0x162/0x1f0 [ 87.024065][ T5820] ? __pfx_down_write+0x10/0x10 [ 87.028908][ T5820] ? __pfx_inode_set_ctime_to_ts+0x10/0x10 [ 87.034705][ T5820] ocfs2_write_begin+0x1bb/0x310 [ 87.039637][ T5820] ? __pfx_ocfs2_write_begin+0x10/0x10 [ 87.045093][ T5820] generic_perform_write+0x2c7/0x910 [ 87.050376][ T5820] ? __pfx_generic_perform_write+0x10/0x10 [ 87.056177][ T5820] ? file_update_time+0x416/0x490 [ 87.061197][ T5820] ? __generic_file_write_iter+0xf9/0x230 [ 87.066917][ T5820] ? ocfs2_file_write_iter+0x1551/0x1d10 [ 87.072546][ T5820] ocfs2_file_write_iter+0x157a/0x1d10 [ 87.077995][ T5820] ? kasan_save_track+0x3e/0x80 [ 87.082839][ T5820] ? __kasan_kmalloc+0x93/0xb0 [ 87.087594][ T5820] ? __kmalloc_noprof+0x27a/0x4f0 [ 87.092614][ T5820] ? __pfx_ocfs2_file_write_iter+0x10/0x10 [ 87.098420][ T5820] ? splice_from_pipe_next+0x608/0x660 [ 87.103872][ T5820] ? __asan_memset+0x22/0x50 [ 87.108456][ T5820] iter_file_splice_write+0x93a/0x1000 [ 87.113911][ T5820] ? __pfx_iter_file_splice_write+0x10/0x10 [ 87.119815][ T5820] ? rcu_read_lock_any_held+0xb3/0x120 [ 87.125274][ T5820] ? __pfx_iter_file_splice_write+0x10/0x10 [ 87.131160][ T5820] direct_splice_actor+0x101/0x160 [ 87.136263][ T5820] splice_direct_to_actor+0x5a5/0xcc0 [ 87.141632][ T5820] ? __pfx_direct_splice_actor+0x10/0x10 [ 87.147258][ T5820] ? __pfx_splice_direct_to_actor+0x10/0x10 [ 87.153148][ T5820] do_splice_direct+0x181/0x270 [ 87.157991][ T5820] ? __pfx_do_splice_direct+0x10/0x10 [ 87.163355][ T5820] ? __pfx_direct_file_splice_eof+0x10/0x10 [ 87.169335][ T5820] ? rw_verify_area+0x258/0x650 [ 87.174179][ T5820] do_sendfile+0x4da/0x7e0 [ 87.178591][ T5820] ? __pfx_do_sendfile+0x10/0x10 [ 87.183527][ T5820] ? _raw_spin_unlock_irq+0x2e/0x50 [ 87.188719][ T5820] ? ptrace_notify+0x22d/0x2c0 [ 87.193479][ T5820] __se_sys_sendfile64+0x13e/0x190 [ 87.198586][ T5820] ? __pfx___se_sys_sendfile64+0x10/0x10 [ 87.204209][ T5820] ? rcu_is_watching+0x15/0xb0 [ 87.208974][ T5820] do_syscall_64+0xfa/0x3b0 [ 87.213476][ T5820] ? lockdep_hardirqs_on+0x9c/0x150 [ 87.218668][ T5820] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.224726][ T5820] ? clear_bhb_loop+0x60/0xb0 [ 87.229398][ T5820] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.235369][ T5820] RIP: 0033:0x7f56f6f796f9 [ 87.239780][ T5820] 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 [ 87.259466][ T5820] RSP: 002b:00007ffc281a9258 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 87.267884][ T5820] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f56f6f796f9 [ 87.275855][ T5820] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 [ 87.283817][ T5820] RBP: 00007f56f6ff0610 R08: 00007ffc281a9428 R09: 00007ffc281a9428 [ 87.291798][ T5820] R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000001 [ 87.299961][ T5820] R13: 00007ffc281a9418 R14: 0000000000000001 R15: 0000000000000001 [ 87.307951][ T5820] [ 87.310969][ T5820] Modules linked in: [ 87.315168][ T5820] ---[ end trace 0000000000000000 ]--- [ 87.326736][ T5820] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 87.333798][ T5820] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 39 e1 9a 8d ba 69 04 00 00 48 c7 c1 00 1f ca 8b e8 58 45 1b 00 90 0f 0b e8 70 65 2a fe 90 <0f> 0b e8 68 65 2a fe 90 0f 0b e8 60 65 2a fe 90 0f 0b e8 58 65 2a [ 87.353739][ T5820] RSP: 0018:ffffc90003d6e9e0 EFLAGS: 00010293 [ 87.360134][ T5820] RAX: ffffffff8395e6b0 RBX: ffff888078416014 RCX: ffff888033f33c00 [ 87.368360][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 87.376362][ T5820] RBP: ffffc90003d6ed10 R08: ffff888073170723 R09: 1ffff1100e62e0e4 [ 87.384620][ T5820] R10: dffffc0000000000 R11: ffffed100e62e0e5 R12: ffff8880340c0000 [ 87.392844][ T5820] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888078416014 [ 87.401498][ T5820] FS: 000055558172e380(0000) GS:ffff888125d83000(0000) knlGS:0000000000000000 [ 87.410670][ T5820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.417295][ T5820] CR2: 0000000000456b30 CR3: 0000000072ef4000 CR4: 00000000003526f0 [ 87.425428][ T5820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.433567][ T5820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.441607][ T5820] Kernel panic - not syncing: Fatal exception [ 87.447972][ T5820] Kernel Offset: disabled [ 87.452301][ T5820] Rebooting in 86400 seconds..