./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1463480662 <...> no interfaces have a carrier [ 48.474636][ T5511] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.493230][ T5511] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.118' (ED25519) to the list of known hosts. execve("./syz-executor1463480662", ["./syz-executor1463480662"], 0x7fff9e067300 /* 10 vars */) = 0 brk(NULL) = 0x55556746b000 brk(0x55556746bd00) = 0x55556746bd00 arch_prctl(ARCH_SET_FS, 0x55556746b380) = 0 set_tid_address(0x55556746b650) = 5850 set_robust_list(0x55556746b660, 24) = 0 rseq(0x55556746bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1463480662", 4096) = 28 getrandom("\xc7\xcd\xc9\x90\xb2\xd8\x6c\xbe", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556746bd00 brk(0x55556748cd00) = 0x55556748cd00 brk(0x55556748d000) = 0x55556748d000 mprotect(0x7fd76441a000, 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 5851 attached , child_tidptr=0x55556746b650) = 5851 [pid 5851] set_robust_list(0x55556746b660, 24) = 0 [pid 5851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5851] setpgid(0, 0) = 0 [pid 5851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5851] write(3, "1000", 4) = 4 [pid 5851] close(3) = 0 [pid 5851] write(1, "executing program\n", 18executing program ) = 18 [pid 5851] memfd_create("syzkaller", 0) = 3 [pid 5851] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd75bf5c000 [pid 5851] 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 5851] munmap(0x7fd75bf5c000, 138412032) = 0 [pid 5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5851] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5851] close(3) = 0 [pid 5851] close(4) = 0 [pid 5851] mkdir("./file1", 0777) = 0 [pid 5851] 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 syzkaller login: [ 75.061717][ T5851] loop0: detected capacity change from 0 to 32768 [ 75.078762][ T5851] ======================================================= [ 75.078762][ T5851] WARNING: The mand mount option has been deprecated and [ 75.078762][ T5851] and is ignored by this kernel. Remove the mand [ 75.078762][ T5851] option from the mount to silence this warning. [ 75.078762][ T5851] ======================================================= [pid 5851] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5851] chdir("./file1") = 0 [pid 5851] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5851] openat(AT_FDCWD, "memory.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [ 75.117553][ T5851] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [ 75.149980][ T5851] ------------[ cut here ]------------ [ 75.149980][ T5851] ------------[ cut here ]------------ [ 75.149994][ T5851] kernel BUG at fs/ocfs2/aops.c:1159! [ 75.150398][ T5851] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 75.150437][ T5851] CPU: 0 UID: 0 PID: 5851 Comm: syz-executor146 Tainted: G W 6.17.0-rc2-syzkaller-00028-gbe48bcf004f9 #0 PREEMPT_{RT,(full)} [ 75.150469][ T5851] Tainted: [W]=WARN [ 75.150476][ T5851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 75.150489][ T5851] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 75.150525][ T5851] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 f4 64 07 8d ba 6a 04 00 00 48 c7 c1 40 e5 49 8b e8 48 51 1b 00 90 0f 0b e8 40 c4 2f fe 90 <0f> 0b e8 38 c4 2f fe 90 0f 0b e8 30 c4 2f fe 90 0f 0b e8 28 c4 2f [ 75.150542][ T5851] RSP: 0018:ffffc90004af6e60 EFLAGS: 00010293 [ 75.150562][ T5851] RAX: ffffffff838e9700 RBX: ffff8880372d4014 RCX: ffff888026825940 [ 75.150579][ T5851] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 75.150591][ T5851] RBP: ffffc90004af7190 R08: 0000000000000000 R09: 0000000000000000 [ 75.150605][ T5851] R10: dffffc0000000000 R11: fffffbfff1e3a7c7 R12: ffff888037684000 [ 75.150621][ T5851] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880372d4014 [ 75.150636][ T5851] FS: 000055556746b380(0000) GS:ffff8881268c5000(0000) knlGS:0000000000000000 [ 75.150654][ T5851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.150668][ T5851] CR2: 00007fd76441e0f8 CR3: 0000000034836000 CR4: 00000000003526f0 [ 75.150687][ T5851] Call Trace: [ 75.150694][ T5851] [ 75.150710][ T5851] ? lock_release+0x4b/0x3e0 [ 75.150745][ T5851] ? __pfx_ocfs2_write_cluster_by_desc+0x10/0x10 [ 75.150764][ T5851] ? __pfx_lru_add+0x10/0x10 [ 75.150784][ T5851] ? filemap_add_folio+0x1af/0x270 [ 75.150810][ T5851] ? folio_mapping+0x16f/0x240 [ 75.150831][ T5851] ? folio_wait_stable+0x6f/0x90 [ 75.150850][ T5851] ? ocfs2_grab_folios_for_write+0xa49/0xdb0 [ 75.150869][ T5851] ? __pfx_ocfs2_grab_folios_for_write+0x10/0x10 [ 75.150883][ T5851] ? rcu_is_watching+0x15/0xb0 [ 75.150905][ T5851] ? ocfs2_write_begin_nolock+0xeb9/0x4340 [ 75.150929][ T5851] ? ocfs2_metadata_cache_get_super+0x43/0x80 [ 75.150953][ T5851] ? ocfs2_inode_cache_get_super+0xd/0x40 [ 75.150969][ T5851] ocfs2_write_begin_nolock+0x31a3/0x4340 [ 75.151011][ T5851] ? __pfx_ocfs2_write_begin_nolock+0x10/0x10 [ 75.151045][ T5851] ? rcu_is_watching+0x15/0xb0 [ 75.151074][ T5851] ? lock_acquire+0x5f/0x360 [ 75.151103][ T5851] ? rt_mutex_slowunlock+0x493/0x8a0 [ 75.151122][ T5851] ? migrate_disable+0xd5/0x190 [ 75.151145][ T5851] ? ocfs2_read_inode_block+0x11d/0x190 [ 75.151162][ T5851] ? __pfx_ocfs2_read_inode_block+0x10/0x10 [ 75.151180][ T5851] ? domain_dirty_limits+0x320/0x4c0 [ 75.151199][ T5851] ? __pfx_ocfs2_journal_access_di+0x10/0x10 [ 75.151222][ T5851] ? do_raw_spin_lock+0x121/0x290 [ 75.151243][ T5851] ? rcu_is_watching+0x15/0xb0 [ 75.151277][ T5851] ? rcu_is_watching+0x15/0xb0 [ 75.151301][ T5851] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 75.151320][ T5851] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 75.151341][ T5851] ? rt_mutex_pre_schedule+0x7d/0x1d0 [ 75.151357][ T5851] ? rwbase_write_lock+0x56f/0x750 [ 75.151388][ T5851] ocfs2_write_begin+0x1bb/0x310 [ 75.151410][ T5851] ? __pfx_ocfs2_write_begin+0x10/0x10 [ 75.151423][ T5851] ? rcu_is_watching+0x15/0xb0 [ 75.151451][ T5851] generic_perform_write+0x29a/0x8c0 [ 75.151471][ T5851] ? __pfx_generic_perform_write+0x10/0x10 [ 75.151487][ T5851] ? file_update_time+0x41c/0x490 [ 75.151503][ T5851] ? __generic_file_write_iter+0xfc/0x240 [ 75.151518][ T5851] ? ocfs2_file_write_iter+0x1554/0x1d20 [ 75.151542][ T5851] ocfs2_file_write_iter+0x157d/0x1d20 [ 75.151570][ T5851] ? __pfx_ocfs2_file_write_iter+0x10/0x10 [ 75.151591][ T5851] ? do_raw_spin_lock+0x121/0x290 [ 75.151608][ T5851] ? do_raw_spin_lock+0x121/0x290 [ 75.151630][ T5851] ? vfs_write+0x217/0xb40 [ 75.151647][ T5851] ? rcu_is_watching+0x15/0xb0 [ 75.151671][ T5851] ? lock_acquire+0x5f/0x360 [ 75.151690][ T5851] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 75.151712][ T5851] vfs_write+0x5d2/0xb40 [ 75.151731][ T5851] ? __pfx_ocfs2_file_write_iter+0x10/0x10 [ 75.151753][ T5851] ? __pfx_vfs_write+0x10/0x10 [ 75.151778][ T5851] ksys_write+0x14b/0x260 [ 75.151797][ T5851] ? __pfx_ksys_write+0x10/0x10 [ 75.151818][ T5851] do_syscall_64+0xfa/0x3b0 [ 75.151838][ T5851] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.151853][ T5851] ? clear_bhb_loop+0x60/0xb0 [ 75.151869][ T5851] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.151883][ T5851] RIP: 0033:0x7fd7643a2b99 [ 75.151902][ T5851] 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 [ 75.151914][ T5851] RSP: 002b:00007fff87c95478 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 75.151929][ T5851] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd7643a2b99 [ 75.151940][ T5851] RDX: 0000000000032600 RSI: 0000000000000000 RDI: 0000000000000004 [ 75.151949][ T5851] RBP: 00007fd76441a5f0 R08: 000055556746c4c0 R09: 000055556746c4c0 [ 75.151959][ T5851] R10: 0000000000004440 R11: 0000000000000246 R12: 00007fff87c954a0 [ 75.151969][ T5851] R13: 00007fff87c956c8 R14: 431bde82d7b634db R15: 00007fd7643eb03b [ 75.151985][ T5851] [ 75.151990][ T5851] Modules linked in: [ 75.152055][ T5851] ---[ end trace 0000000000000000 ]--- [ 75.157346][ T5851] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 75.157397][ T5851] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 f4 64 07 8d ba 6a 04 00 00 48 c7 c1 40 e5 49 8b e8 48 51 1b 00 90 0f 0b e8 40 c4 2f fe 90 <0f> 0b e8 38 c4 2f fe 90 0f 0b e8 30 c4 2f fe 90 0f 0b e8 28 c4 2f [ 75.157417][ T5851] RSP: 0018:ffffc90004af6e60 EFLAGS: 00010293 [ 75.157438][ T5851] RAX: ffffffff838e9700 RBX: ffff8880372d4014 RCX: ffff888026825940 [ 75.157456][ T5851] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 75.157471][ T5851] RBP: ffffc90004af7190 R08: 0000000000000000 R09: 0000000000000000 [ 75.157485][ T5851] R10: dffffc0000000000 R11: fffffbfff1e3a7c7 R12: ffff888037684000 [ 75.157504][ T5851] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880372d4014 [ 75.157520][ T5851] FS: 000055556746b380(0000) GS:ffff8881268c5000(0000) knlGS:0000000000000000 [ 75.157542][ T5851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.157557][ T5851] CR2: 00007fd76441e0f8 CR3: 0000000034836000 CR4: 00000000003526f0 [ 75.157582][ T5851] Kernel panic - not syncing: Fatal exception [ 75.158126][ T5851] Kernel Offset: disabled