------------[ cut here ]------------ kernel BUG at fs/reiserfs/journal.c:1916! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 6757 Comm: syz-executor Not tainted 6.6.101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:do_journal_release+0x53a/0x550 fs/reiserfs/journal.c:1916 Code: b6 ff e9 49 fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c b9 fc ff ff 4c 89 ff e8 60 c6 b6 ff e9 ac fc ff ff e8 76 80 5f ff <0f> 0b e8 6f 80 5f ff 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 RSP: 0018:ffffc90003237b00 EFLAGS: 00010293 RAX: ffffffff8226151a RBX: ffff88802622c000 RCX: ffff88802d0abc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003237bf8 R08: ffffc90003237b77 R09: 0000000000000000 R10: ffffc90003237b40 R11: fffff52000646f6f R12: ffffc90004c39000 R13: 1ffff92000646f64 R14: ffff88802622c630 R15: 0000000000000000 FS: 0000555593054500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd90291fb8 CR3: 00000000262b8000 CR4: 00000000003506e0 Call Trace: journal_release+0x1f/0x30 fs/reiserfs/journal.c:1971 reiserfs_put_super+0x222/0x480 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+0x429/0x4c0 fs/namespace.c:1250 task_work_run+0x1ce/0x250 kernel/task_work.c:239 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+0xb1/0x140 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+0x61/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f6abf38fe97 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:00007ffd90292218 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f6abf411bdd RCX: 00007f6abf38fe97 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd902922d0 RBP: 00007ffd902922d0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd90293360 R13: 00007f6abf411bdd R14: 0000000000025005 R15: 00007ffd902933a0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:do_journal_release+0x53a/0x550 fs/reiserfs/journal.c:1916 Code: b6 ff e9 49 fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c b9 fc ff ff 4c 89 ff e8 60 c6 b6 ff e9 ac fc ff ff e8 76 80 5f ff <0f> 0b e8 6f 80 5f ff 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 RSP: 0018:ffffc90003237b00 EFLAGS: 00010293 RAX: ffffffff8226151a RBX: ffff88802622c000 RCX: ffff88802d0abc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003237bf8 R08: ffffc90003237b77 R09: 0000000000000000 R10: ffffc90003237b40 R11: fffff52000646f6f R12: ffffc90004c39000 R13: 1ffff92000646f64 R14: ffff88802622c630 R15: 0000000000000000 FS: 0000555593054500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0b00d212c0 CR3: 00000000262b8000 CR4: 00000000003506f0