Hello, syzbot found the following issue on: HEAD commit: 65d6e954e378 Merge tag 'gfs2-v6.5-rc5-fixes' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=150b1d58680000 kernel config: https://syzkaller.appspot.com/x/.config?x=cbf8b29a87b8a830 dashboard link: https://syzkaller.appspot.com/bug?extid=3b6e67ac2b646da57862 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/a239a86394dd/disk-65d6e954.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/1d7af042d4c5/vmlinux-65d6e954.xz kernel image: https://storage.googleapis.com/syzbot-assets/cdb5df52c1e3/bzImage-65d6e954.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3b6e67ac2b646da57862@xxxxxxxxxxxxxxxxxxxxxxxxx RBP: 00007ffd0d57a210 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd0d57b2d0 R13: 00007fbf640c73b9 R14: 00000000002ca96c R15: 0000000000000003 </TASK> ------------[ cut here ]------------ kernel BUG at fs/gfs2/quota.c:1485! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5074 Comm: syz-executor.4 Not tainted 6.5.0-syzkaller-11938-g65d6e954e378 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:gfs2_quota_cleanup+0x5cc/0x6e0 fs/gfs2/quota.c:1485 Code: ff e8 e8 3b e1 fd e8 73 40 e1 fd 49 8d b7 70 12 00 00 89 ea 48 c7 c7 a0 16 da 8a e8 be 5b c4 fd e9 1b fe ff ff e8 54 40 e1 fd <0f> 0b 4c 89 e7 e8 2a 3d 36 fe e9 ef fd ff ff e8 40 3d 36 fe e9 14 RSP: 0018:ffffc900038bfaf0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888076948200 RSI: ffffffff83a5622c RDI: 0000000000000007 RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000008c8e8 R12: 0000000000000000 R13: 0000000000000000 R14: ffffc900038bfb40 R15: ffff888036950000 FS: 0000555556145480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f68df122866 CR3: 000000003214a000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> gfs2_make_fs_ro+0x11e/0x350 fs/gfs2/super.c:574 gfs2_put_super+0x66a/0x760 fs/gfs2/super.c:606 generic_shutdown_super+0x161/0x3c0 fs/super.c:693 kill_block_super+0x3b/0x70 fs/super.c:1646 gfs2_kill_sb+0x361/0x410 fs/gfs2/ops_fstype.c:1811 deactivate_locked_super+0x9a/0x170 fs/super.c:481 deactivate_super+0xde/0x100 fs/super.c:514 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254 task_work_run+0x14d/0x240 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fbf6407de17 Code: b0 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 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd0d57a158 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbf6407de17 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd0d57a210 RBP: 00007ffd0d57a210 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd0d57b2d0 R13: 00007fbf640c73b9 R14: 00000000002ca96c R15: 0000000000000003 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_quota_cleanup+0x5cc/0x6e0 fs/gfs2/quota.c:1485 Code: ff e8 e8 3b e1 fd e8 73 40 e1 fd 49 8d b7 70 12 00 00 89 ea 48 c7 c7 a0 16 da 8a e8 be 5b c4 fd e9 1b fe ff ff e8 54 40 e1 fd <0f> 0b 4c 89 e7 e8 2a 3d 36 fe e9 ef fd ff ff e8 40 3d 36 fe e9 14 RSP: 0018:ffffc900038bfaf0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888076948200 RSI: ffffffff83a5622c RDI: 0000000000000007 RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000008c8e8 R12: 0000000000000000 R13: 0000000000000000 R14: ffffc900038bfb40 R15: ffff888036950000 FS: 0000555556145480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f68df122866 CR3: 000000003214a000 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 overwrite 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
