Hello, syzbot found the following issue on: HEAD commit: 61dabacdad4e Merge tag 'sound-6.4' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17d009af280000 kernel config: https://syzkaller.appspot.com/x/.config?x=e74b395fe4978721 dashboard link: https://syzkaller.appspot.com/bug?extid=702d8ffe347fa9623624 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/eba067fe8c35/disk-61dabacd.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6800499a8694/vmlinux-61dabacd.xz kernel image: https://storage.googleapis.com/syzbot-assets/4b4f8a7eda0e/bzImage-61dabacd.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+702d8ffe347fa9623624@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ kernel BUG at fs/reiserfs/journal.c:1108! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5035 Comm: syz-executor.0 Not tainted 6.4.0-rc7-syzkaller-00204-g61dabacdad4e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:flush_commit_list+0x1bc3/0x1bf0 fs/reiserfs/journal.c:1108 Code: ff ff e8 60 49 59 ff 0f 0b e8 59 49 59 ff 0f 0b e8 52 49 59 ff 0f 0b e8 4b 49 59 ff 0f 0b e8 44 49 59 ff 0f 0b e8 3d 49 59 ff <0f> 0b e8 36 49 59 ff 0f 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c RSP: 0018:ffffc9000409f748 EFLAGS: 00010293 RAX: ffffffff82323bb3 RBX: ffff88807b35a0d0 RCX: ffff888028279dc0 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: 0000000000000002 R08: ffffffff82323044 R09: ffffed1011ebcce9 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807b35a01c R13: dffffc0000000000 R14: ffff88803c25c000 R15: 1ffff1100f66b41a FS: 0000555555b4f400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f40f3952000 CR3: 0000000035d67000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> do_journal_end+0x3160/0x4770 fs/reiserfs/journal.c:4300 do_journal_release+0x178/0x4d0 fs/reiserfs/journal.c:1917 journal_release+0x1f/0x30 fs/reiserfs/journal.c:1971 reiserfs_put_super+0x23b/0x4c0 fs/reiserfs/super.c:616 generic_shutdown_super+0x134/0x340 fs/super.c:500 kill_block_super+0x84/0xf0 fs/super.c:1407 deactivate_locked_super+0xa4/0x110 fs/super.c:331 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5255e8d7f7 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 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 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffc16d9fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5255e8d7f7 RDX: 00007fffc16da07b RSI: 000000000000000a RDI: 00007fffc16da070 RBP: 00007fffc16da070 R08: 00000000ffffffff R09: 00007fffc16d9e40 R10: 0000555555b50893 R11: 0000000000000246 R12: 00007f5255ed643b R13: 00007fffc16db130 R14: 0000555555b50810 R15: 00007fffc16db170 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:flush_commit_list+0x1bc3/0x1bf0 fs/reiserfs/journal.c:1108 Code: ff ff e8 60 49 59 ff 0f 0b e8 59 49 59 ff 0f 0b e8 52 49 59 ff 0f 0b e8 4b 49 59 ff 0f 0b e8 44 49 59 ff 0f 0b e8 3d 49 59 ff <0f> 0b e8 36 49 59 ff 0f 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c RSP: 0018:ffffc9000409f748 EFLAGS: 00010293 RAX: ffffffff82323bb3 RBX: ffff88807b35a0d0 RCX: ffff888028279dc0 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: 0000000000000002 R08: ffffffff82323044 R09: ffffed1011ebcce9 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807b35a01c R13: dffffc0000000000 R14: ffff88803c25c000 R15: 1ffff1100f66b41a FS: 0000555555b4f400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f40f3899000 CR3: 0000000035d67000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
