REISERFS panic (device loop4): journal-2332 do_journal_end: Trying to log block 531, which is a log block ------------[ cut here ]------------ kernel BUG at fs/reiserfs/prints.c:390! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4189 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390 Code: c7 c1 c0 31 1b 8a 48 0f 44 c8 4c 0f 44 f0 48 c7 c7 80 32 1b 8a 4c 89 fe 4c 89 f2 49 89 d8 49 c7 c1 e0 6d 1e 96 e8 16 52 ff ff <0f> 0b 0f 1f 40 00 53 48 89 fb e8 b7 ad d8 f7 48 c7 c7 40 3b 1b 8a RSP: 0018:ffffc90002def9a0 EFLAGS: 00010246 RAX: 0000000000000069 RBX: ffffffff8bbaa165 RCX: 5ea5c4c661738f00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90002defaa0 R08: dffffc0000000000 R09: ffffed10172267a8 R10: ffffed10172267a8 R11: 1ffff110172267a7 R12: ffffffff8a1b7d80 R13: ffffc90002def9c0 R14: ffffffff8a1b7d60 R15: ffff88805aaf66a8 FS: 000055557837a500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000a000 CR3: 0000000061a16000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_journal_end+0x39fb/0x42d0 fs/reiserfs/journal.c:4149 reiserfs_sync_fs+0xcc/0x150 fs/reiserfs/super.c:78 sync_filesystem+0xe6/0x220 fs/sync.c:56 generic_shutdown_super+0x6b/0x300 fs/super.c:448 kill_block_super+0x7c/0xe0 fs/super.c:1427 deactivate_locked_super+0x93/0xf0 fs/super.c:335 cleanup_mnt+0x418/0x4d0 fs/namespace.c:1139 task_work_run+0x125/0x1a0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f1554590f17 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe2c169418 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f1554612c05 RCX: 00007f1554590f17 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2c1694d0 RBP: 00007ffe2c1694d0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe2c16a560 R13: 00007f1554612c05 R14: 000000000001915d R15: 00007ffe2c16a5a0 Modules linked in: ---[ end trace a18ca9bb4259ffa7 ]--- RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390 Code: c7 c1 c0 31 1b 8a 48 0f 44 c8 4c 0f 44 f0 48 c7 c7 80 32 1b 8a 4c 89 fe 4c 89 f2 49 89 d8 49 c7 c1 e0 6d 1e 96 e8 16 52 ff ff <0f> 0b 0f 1f 40 00 53 48 89 fb e8 b7 ad d8 f7 48 c7 c7 40 3b 1b 8a RSP: 0018:ffffc90002def9a0 EFLAGS: 00010246 RAX: 0000000000000069 RBX: ffffffff8bbaa165 RCX: 5ea5c4c661738f00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90002defaa0 R08: dffffc0000000000 R09: ffffed10172267a8 R10: ffffed10172267a8 R11: 1ffff110172267a7 R12: ffffffff8a1b7d80 R13: ffffc90002def9c0 R14: ffffffff8a1b7d60 R15: ffff88805aaf66a8 FS: 000055557837a500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2c2a5f4358 CR3: 0000000061a16000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400