./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1867303468 <...> no interfaces have a carrier [ 63.056068][ T5498] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.067754][ T5498] eql: remember to turn off Van-Jacobson compression on your slave devices Starting crond: OK Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.168' (ED25519) to the list of known hosts. execve("./syz-executor1867303468", ["./syz-executor1867303468"], 0x7ffcfa409ca0 /* 10 vars */) = 0 brk(NULL) = 0x55555c618000 brk(0x55555c618d00) = 0x55555c618d00 arch_prctl(ARCH_SET_FS, 0x55555c618380) = 0 set_tid_address(0x55555c618650) = 5837 set_robust_list(0x55555c618660, 24) = 0 rseq(0x55555c618ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1867303468", 4096) = 28 getrandom("\xcd\x9d\xa2\x10\x8e\x44\xea\xab", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555c618d00 brk(0x55555c639d00) = 0x55555c639d00 brk(0x55555c63a000) = 0x55555c63a000 mprotect(0x7f83a576e000, 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) = 0x7f839d200000 write(3, "\x00\x00\x00\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(0x7f839d200000, 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 syzkaller login: [ 91.946409][ T5837] loop0: detected capacity change from 0 to 32768 [ 91.969124][ T5837] ======================================================= [ 91.969124][ T5837] WARNING: The mand mount option has been deprecated and [ 91.969124][ T5837] and is ignored by this kernel. Remove the mand [ 91.969124][ T5837] option from the mount to silence this warning. [ 91.969124][ T5837] ======================================================= [ 92.031770][ T5837] ------------[ cut here ]------------ [ 92.037558][ T5837] kernel BUG at fs/ocfs2/buffer_head_io.c:45! [ 92.044912][ T5837] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 92.051234][ T5837] CPU: 0 UID: 0 PID: 5837 Comm: syz-executor186 Not tainted 6.16.0-rc6-syzkaller-00253-g4871b7cb27f4 #0 PREEMPT(full) [ 92.063682][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 92.073801][ T5837] RIP: 0010:ocfs2_write_block+0x5d2/0x640 [ 92.079605][ T5837] Code: 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ff e8 05 21 8b fe 49 8b 3f 4c 89 ee 48 8b 14 24 e8 16 7f 0f 00 eb 1f e8 6f 3a 2b fe 90 <0f> 0b e8 67 3a 2b fe 90 0f 0b e8 5f 3a 2b fe e9 ce fa ff ff e8 55 [ 92.099251][ T5837] RSP: 0018:ffffc90003f6ef60 EFLAGS: 00010293 [ 92.105351][ T5837] RAX: ffffffff8394ed61 RBX: 1ffff1100ea32a77 RCX: ffff88801e359e00 [ 92.113358][ T5837] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 92.121359][ T5837] RBP: ffffc90003f6f030 R08: ffffffff8fa0acf7 R09: 1ffffffff1f4159e [ 92.129338][ T5837] R10: dffffc0000000000 R11: fffffbfff1f4159f R12: 0000000000000000 [ 92.137323][ T5837] R13: dffffc0000000000 R14: ffff8880751953a0 R15: 0000000000000001 [ 92.145436][ T5837] FS: 000055555c618380(0000) GS:ffff888125c59000(0000) knlGS:0000000000000000 [ 92.154386][ T5837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.160976][ T5837] CR2: 00005575837cc540 CR3: 0000000071dd8000 CR4: 00000000003526f0 [ 92.168954][ T5837] Call Trace: [ 92.172237][ T5837] [ 92.175179][ T5837] ? __pfx_ocfs2_write_block+0x10/0x10 [ 92.180649][ T5837] ? do_raw_spin_unlock+0x122/0x240 [ 92.185856][ T5837] ocfs2_update_disk_slot+0x6c6/0x9c0 [ 92.191239][ T5837] ? __pfx_ocfs2_update_disk_slot+0x10/0x10 [ 92.197142][ T5837] ocfs2_find_slot+0x6bb/0xc30 [ 92.201918][ T5837] ? __pfx_ocfs2_find_slot+0x10/0x10 [ 92.207220][ T5837] ocfs2_fill_super+0x3ef4/0x63d0 [ 92.212260][ T5837] ? unwind_next_frame+0xa5/0x2390 [ 92.217371][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.222140][ T5837] ? __pfx_ocfs2_fill_super+0x10/0x10 [ 92.227522][ T5837] ? unwind_next_frame+0xa5/0x2390 [ 92.232635][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.237403][ T5837] ? __kasan_check_byte+0x12/0x40 [ 92.242431][ T5837] ? is_bpf_text_address+0x26/0x2b0 [ 92.247634][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.252396][ T5837] ? __kasan_check_byte+0x12/0x40 [ 92.257428][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.262194][ T5837] ? lock_release+0x4b/0x3e0 [ 92.266814][ T5837] ? lock_release+0x4b/0x3e0 [ 92.271417][ T5837] ? unwind_next_frame+0xa5/0x2390 [ 92.276527][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.281292][ T5837] ? __kasan_check_byte+0x12/0x40 [ 92.286318][ T5837] ? unwind_next_frame+0xa5/0x2390 [ 92.291447][ T5837] ? unwind_next_frame+0xa5/0x2390 [ 92.296557][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.301326][ T5837] ? __kasan_check_byte+0x12/0x40 [ 92.306356][ T5837] ? is_bpf_text_address+0x26/0x2b0 [ 92.311552][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.316314][ T5837] ? __kasan_check_byte+0x12/0x40 [ 92.321337][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.326105][ T5837] ? lock_release+0x4b/0x3e0 [ 92.330718][ T5837] ? lock_release+0x4b/0x3e0 [ 92.335307][ T5837] ? is_bpf_text_address+0x292/0x2b0 [ 92.340680][ T5837] ? is_bpf_text_address+0x26/0x2b0 [ 92.345881][ T5837] ? kernel_text_address+0xa5/0xe0 [ 92.351006][ T5837] ? __kernel_text_address+0xd/0x40 [ 92.356216][ T5837] ? unwind_get_return_address+0x4d/0x90 [ 92.361865][ T5837] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 92.368055][ T5837] ? arch_stack_walk+0xfc/0x150 [ 92.372948][ T5837] ? __bfs+0x154/0x2a0 [ 92.377026][ T5837] ? __pfx_hlock_conflict+0x10/0x10 [ 92.382235][ T5837] ? __bfs+0x154/0x2a0 [ 92.386308][ T5837] ? __pfx_hlock_conflict+0x10/0x10 [ 92.391542][ T5837] ? check_path+0x21/0x40 [ 92.395917][ T5837] ? check_noncircular+0xe0/0x160 [ 92.400958][ T5837] ? lockdep_unlock+0x89/0x120 [ 92.405740][ T5837] ? validate_chain+0x897/0x2140 [ 92.410703][ T5837] ? __lock_acquire+0xab9/0xd20 [ 92.415570][ T5837] ? __mutex_trylock_common+0x153/0x260 [ 92.421133][ T5837] ? string+0x279/0x2b0 [ 92.425314][ T5837] ? widen_string+0x3b/0x2a0 [ 92.429909][ T5837] ? string+0x279/0x2b0 [ 92.434069][ T5837] ? bdev_name+0x2ce/0x430 [ 92.438484][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.443251][ T5837] ? pointer+0x5f2/0x1190 [ 92.447591][ T5837] ? __pfx_pointer+0x10/0x10 [ 92.452188][ T5837] ? bdev_open+0x91d/0xd30 [ 92.456619][ T5837] ? format_decode+0x5ee/0xe30 [ 92.461398][ T5837] ? snprintf+0xda/0x120 [ 92.465649][ T5837] ? __pfx_snprintf+0x10/0x10 [ 92.470330][ T5837] ? set_blocksize+0x21e/0x500 [ 92.475108][ T5837] ? sb_set_blocksize+0x104/0x180 [ 92.480136][ T5837] ? setup_bdev_super+0x4c1/0x5b0 [ 92.485164][ T5837] get_tree_bdev_flags+0x40b/0x4d0 [ 92.490287][ T5837] ? __pfx_ocfs2_fill_super+0x10/0x10 [ 92.495668][ T5837] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 92.501327][ T5837] ? cap_capable+0x11f/0x460 [ 92.505923][ T5837] ? ocfs2_init_fs_context+0x65/0x260 [ 92.511302][ T5837] ? safesetid_security_capable+0xa9/0x1a0 [ 92.517113][ T5837] vfs_get_tree+0x8f/0x2b0 [ 92.521536][ T5837] do_new_mount+0x24a/0xa40 [ 92.526134][ T5837] __se_sys_mount+0x317/0x410 [ 92.530816][ T5837] ? __pfx___se_sys_mount+0x10/0x10 [ 92.536020][ T5837] ? rcu_is_watching+0x15/0xb0 [ 92.540798][ T5837] ? __x64_sys_mount+0x20/0xc0 [ 92.545565][ T5837] do_syscall_64+0xfa/0x3b0 [ 92.550074][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 92.555275][ T5837] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.561358][ T5837] ? clear_bhb_loop+0x60/0xb0 [ 92.566136][ T5837] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 92.572041][ T5837] RIP: 0033:0x7f83a56f89fa [ 92.576475][ T5837] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 92.596087][ T5837] RSP: 002b:00007ffdf06a5308 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 92.604509][ T5837] RAX: ffffffffffffffda RBX: 00007ffdf06a5320 RCX: 00007f83a56f89fa [ 92.612486][ T5837] RDX: 0000200000004440 RSI: 0000200000000040 RDI: 00007ffdf06a5320 [ 92.620467][ T5837] RBP: 0000200000000040 R08: 00007ffdf06a5360 R09: 0000000000004450 [ 92.628444][ T5837] R10: 00000000010008d0 R11: 0000000000000202 R12: 0000200000004440 [ 92.636427][ T5837] R13: 00007ffdf06a5360 R14: 0000000000000003 R15: 00000000010008d0 [ 92.644417][ T5837] [ 92.647441][ T5837] Modules linked in: [ 92.652068][ T5837] ---[ end trace 0000000000000000 ]--- [ 92.661345][ T5837] RIP: 0010:ocfs2_write_block+0x5d2/0x640 [ 92.667144][ T5837] Code: 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ff e8 05 21 8b fe 49 8b 3f 4c 89 ee 48 8b 14 24 e8 16 7f 0f 00 eb 1f e8 6f 3a 2b fe 90 <0f> 0b e8 67 3a 2b fe 90 0f 0b e8 5f 3a 2b fe e9 ce fa ff ff e8 55 [ 92.691621][ T5837] RSP: 0018:ffffc90003f6ef60 EFLAGS: 00010293 [ 92.697746][ T5837] RAX: ffffffff8394ed61 RBX: 1ffff1100ea32a77 RCX: ffff88801e359e00 [ 92.706036][ T5837] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 92.714225][ T5837] RBP: ffffc90003f6f030 R08: ffffffff8fa0acf7 R09: 1ffffffff1f4159e [ 92.722436][ T5837] R10: dffffc0000000000 R11: fffffbfff1f4159f R12: 0000000000000000 [ 92.730666][ T5837] R13: dffffc0000000000 R14: ffff8880751953a0 R15: 0000000000000001 [ 92.738856][ T5837] FS: 000055555c618380(0000) GS:ffff888125d59000(0000) knlGS:0000000000000000 [ 92.747821][ T5837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.754707][ T5837] CR2: 0000557583809f40 CR3: 0000000071dd8000 CR4: 00000000003526f0 [ 92.763297][ T5837] Kernel panic - not syncing: Fatal exception [ 92.769706][ T5837] Kernel Offset: disabled [ 92.774049][ T5837] Rebooting in 86400 seconds..