REISERFS panic (device loop0): 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: 4280 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390 Code: c7 c1 80 53 9e 8a 48 0f 44 c8 4c 0f 44 f0 48 c7 c7 40 54 9e 8a 4c 89 fe 4c 89 f2 49 89 d8 49 c7 c1 c0 2f d7 96 e8 76 83 ff ff <0f> 0b 0f 1f 40 00 53 48 89 fb e8 c7 1d 74 f7 48 c7 c7 c0 5c 9e 8a RSP: 0018:ffffc90004107860 EFLAGS: 00010246 RAX: 0000000000000069 RBX: ffffffff8c5cb729 RCX: 31677acf63ebc200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90004107950 R08: dffffc0000000000 R09: fffff52000820ead R10: fffff52000820ead R11: 1ffff92000820eac R12: ffffffff8a9ea1a0 R13: ffffc90004107880 R14: ffffffff8a9ea180 R15: ffff88807b0886a8 FS: 000055555c848500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2412c9 CR3: 000000005c4a4000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_journal_end+0x3e49/0x4790 fs/reiserfs/journal.c:4153 reiserfs_sync_fs+0xcc/0x150 fs/reiserfs/super.c:78 sync_filesystem+0xe6/0x220 fs/sync.c:56 generic_shutdown_super+0x6b/0x340 fs/super.c:474 kill_block_super+0x7c/0xe0 fs/super.c:1470 deactivate_locked_super+0x93/0xf0 fs/super.c:332 cleanup_mnt+0x463/0x4f0 fs/namespace.c:1182 task_work_run+0x1ca/0x250 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f53f658fed7 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:00007ffe3727a698 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f53f6611c05 RCX: 00007f53f658fed7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe3727a750 RBP: 00007ffe3727a750 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe3727b7e0 R13: 00007f53f6611c05 R14: 00000000000239c3 R15: 00007ffe3727b820 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390 Code: c7 c1 80 53 9e 8a 48 0f 44 c8 4c 0f 44 f0 48 c7 c7 40 54 9e 8a 4c 89 fe 4c 89 f2 49 89 d8 49 c7 c1 c0 2f d7 96 e8 76 83 ff ff <0f> 0b 0f 1f 40 00 53 48 89 fb e8 c7 1d 74 f7 48 c7 c7 c0 5c 9e 8a RSP: 0018:ffffc90004107860 EFLAGS: 00010246 RAX: 0000000000000069 RBX: ffffffff8c5cb729 RCX: 31677acf63ebc200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90004107950 R08: dffffc0000000000 R09: fffff52000820ead R10: fffff52000820ead R11: 1ffff92000820eac R12: ffffffff8a9ea1a0 R13: ffffc90004107880 R14: ffffffff8a9ea180 R15: ffff88807b0886a8 FS: 000055555c848500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcc8e45fe8 CR3: 000000005c4a4000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400