Hello, syzbot found the following issue on: HEAD commit: cc8ed4d0a848 Merge tag 'drm-fixes-2024-06-01' of https://g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17039cba980000 kernel config: https://syzkaller.appspot.com/x/.config?x=733cc7a95171d8e7 dashboard link: https://syzkaller.appspot.com/bug?extid=ea15576a86ef3f03216a compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-cc8ed4d0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/36abdd995432/vmlinux-cc8ed4d0.xz kernel image: https://storage.googleapis.com/syzbot-assets/5e4e0a6f67db/bzImage-cc8ed4d0.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ea15576a86ef3f03216a@xxxxxxxxxxxxxxxxxxxxxxxxx list_add corruption. prev->next should be next (ffffe8ffad379458), but was ffffe8ffad379546. (prev=ffffe8ffad379458). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:32! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 3 PID: 57 Comm: kworker/3:1 Not tainted 6.10.0-rc1-syzkaller-00267-gcc8ed4d0a848 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Workqueue: xfs-conv/loop2 xfs_end_io RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32 Code: e9 fc 90 0f 0b 48 89 d9 48 c7 c7 20 c0 8f 8b e8 88 50 e9 fc 90 0f 0b 48 89 f1 48 c7 c7 a0 c0 8f 8b 48 89 de e8 73 50 e9 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 20 c1 8f 8b e8 5b 50 e9 RSP: 0000:ffffc9000077f450 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffffe8ffad379458 RCX: ffffffff816f3159 RDX: 0000000000000000 RSI: ffffffff816fbd56 RDI: 0000000000000005 RBP: ffff88804c565d18 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000007 R12: ffffe8ffad379458 R13: ffff88804c565cb0 R14: ffff88804c565d18 R15: ffffe8ffad379440 FS: 0000000000000000(0000) GS:ffff88802c300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000033533000 CR3: 000000004c7bc000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_add_valid include/linux/list.h:88 [inline] __list_add include/linux/list.h:150 [inline] list_add_tail include/linux/list.h:183 [inline] xlog_cil_insert_items fs/xfs/xfs_log_cil.c:675 [inline] xlog_cil_commit+0x125b/0x32d0 fs/xfs/xfs_log_cil.c:1593 __xfs_trans_commit+0x346/0xe90 fs/xfs/xfs_trans.c:1020 xfs_trans_roll+0x1a9/0x430 fs/xfs/xfs_trans.c:1168 xfs_defer_trans_roll+0x1b8/0x610 fs/xfs/libxfs/xfs_defer.c:478 xfs_defer_finish_noroll+0x6b2/0x1490 fs/xfs/libxfs/xfs_defer.c:687 __xfs_trans_commit+0x941/0xe90 fs/xfs/xfs_trans.c:980 xfs_iomap_write_unwritten+0x32e/0x9d0 fs/xfs/xfs_iomap.c:649 xfs_end_ioend+0x3e4/0x530 fs/xfs/xfs_aops.c:131 xfs_end_io+0x217/0x340 fs/xfs/xfs_aops.c:173 process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32 Code: e9 fc 90 0f 0b 48 89 d9 48 c7 c7 20 c0 8f 8b e8 88 50 e9 fc 90 0f 0b 48 89 f1 48 c7 c7 a0 c0 8f 8b 48 89 de e8 73 50 e9 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 20 c1 8f 8b e8 5b 50 e9 RSP: 0000:ffffc9000077f450 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffffe8ffad379458 RCX: ffffffff816f3159 RDX: 0000000000000000 RSI: ffffffff816fbd56 RDI: 0000000000000005 RBP: ffff88804c565d18 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000007 R12: ffffe8ffad379458 R13: ffff88804c565cb0 R14: ffff88804c565d18 R15: ffffe8ffad379440 FS: 0000000000000000(0000) GS:ffff88802c300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000033533000 CR3: 000000004c7bc000 CR4: 0000000000350ef0 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 report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
