------------[ cut here ]------------ kernel BUG at fs/reiserfs/journal.c:1916! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5761 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:do_journal_release+0x4e6/0x4f0 fs/reiserfs/journal.c:1916 Code: b5 ff e9 a8 fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 06 fd ff ff 4c 89 ff e8 64 e0 b5 ff e9 f9 fc ff ff e8 2a b9 5d ff <0f> 0b e8 23 b9 5d ff 0f 0b 90 66 0f 1f 00 41 57 41 56 53 48 89 f3 RSP: 0000:ffffc9000487fb00 EFLAGS: 00010293 RAX: ffffffff822959f6 RBX: 1ffff9200090ff64 RCX: ffff88807afdbc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000487fbf8 R08: ffffc9000487fb77 R09: 0000000000000000 R10: ffffc9000487fb40 R11: fffff5200090ff6f R12: ffffc9000cd99000 R13: dffffc0000000000 R14: ffff88805d9b6630 R15: 0000000000000000 FS: 00005555807f3500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b34f23ffc CR3: 000000006121d000 CR4: 00000000003506e0 Call Trace: journal_release+0x1f/0x30 fs/reiserfs/journal.c:1971 reiserfs_put_super+0x26b/0x510 fs/reiserfs/super.c:616 generic_shutdown_super+0x134/0x2b0 fs/super.c:693 kill_block_super+0x44/0x90 fs/super.c:1660 deactivate_locked_super+0x97/0x100 fs/super.c:481 cleanup_mnt+0x43b/0x4d0 fs/namespace.c:1259 task_work_run+0x1d4/0x260 kernel/task_work.c:245 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:291 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302 do_syscall_64+0x61/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fb869d9c117 Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd47aa88e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fb869e0471f RCX: 00007fb869d9c117 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd47aa89a0 RBP: 00007ffd47aa89a0 R08: 00007ffd47aa99a0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd47aa9a30 R13: 00007fb869e0471f R14: 0000000000015509 R15: 00007ffd47aa9a70 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_journal_release+0x4e6/0x4f0 fs/reiserfs/journal.c:1916 Code: b5 ff e9 a8 fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 06 fd ff ff 4c 89 ff e8 64 e0 b5 ff e9 f9 fc ff ff e8 2a b9 5d ff <0f> 0b e8 23 b9 5d ff 0f 0b 90 66 0f 1f 00 41 57 41 56 53 48 89 f3 RSP: 0000:ffffc9000487fb00 EFLAGS: 00010293 RAX: ffffffff822959f6 RBX: 1ffff9200090ff64 RCX: ffff88807afdbc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000487fbf8 R08: ffffc9000487fb77 R09: 0000000000000000 R10: ffffc9000487fb40 R11: fffff5200090ff6f R12: ffffc9000cd99000 R13: dffffc0000000000 R14: ffff88805d9b6630 R15: 0000000000000000 FS: 00005555807f3500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b34f23ffc CR3: 000000006121d000 CR4: 00000000003506e0