syzbot


kernel BUG in clear_inode (3)

Status: upstream: reported C repro on 2024/11/22 00:29
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+fd3c895d1c86f6104539@syzkaller.appspotmail.com
First crash: 286d, last: 18d
Fix commit to backport (bisect log) :
tree: upstream
commit 8c3f9a70d2d4dd6c640afe294b05c6a0a45434d9
Author: Dmitry Antipov <dmantipov@yandex.ru>
Date: Thu Nov 7 05:42:28 2024 +0000

  jfs: reject on-disk inodes of an unsupported type

[report pending]
  
Bug presence (1)
Date Name Commit Repro Result
2025/09/03 upstream (ToT) e6b9dce0aeeb C Didn't crash
Similar bugs (8)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in clear_inode (2) jfs -1 C inconclusive 986 85d 310d 28/29 fixed on 2025/06/10 16:19
linux-6.1 kernel BUG in clear_inode origin:upstream missing-backport -1 C inconclusive 28 18d 832d 0/3 upstream: reported C repro on 2023/05/25 23:24
linux-6.6 kernel BUG in clear_inode origin:upstream missing-backport -1 C inconclusive 6 18d 78d 0/2 upstream: reported C repro on 2025/06/18 00:00
linux-5.15 kernel BUG in clear_inode -1 1 856d 856d 0/3 auto-obsoleted due to no activity on 2023/08/23 09:07
upstream kernel BUG in clear_inode (3) jfs -1 C error 637 2d10h 83d 28/29 upstream: reported C repro on 2025/06/12 11:53
linux-5.15 kernel BUG in clear_inode (2) -1 2 411d 490d 0/3 auto-obsoleted due to no activity on 2024/10/27 05:50
upstream kernel BUG in clear_inode btrfs -1 C 12 318d 460d 28/29 fixed on 2024/10/22 11:57
upstream kernel BUG at fs/inode.c:LINE! (2) fs -1 C done unreliable 322 484d 1832d 25/29 fixed on 2024/05/21 07:00
Last patch testing requests (7)
Created Duration User Patch Repo Result
2025/08/30 11:32 39m retest repro linux-5.15.y OK log
2025/08/12 01:58 11m retest repro linux-5.15.y report log
2025/08/12 01:58 12m retest repro linux-5.15.y report log
2025/08/12 01:58 11m retest repro linux-5.15.y report log
2025/08/12 01:58 12m retest repro linux-5.15.y report log
2025/08/12 01:58 14m retest repro linux-5.15.y report log
2025/07/19 04:15 12m retest repro linux-5.15.y report log
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2025/06/06 21:06 4h54m fix candidate upstream OK (1) job log

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/inode.c:567!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 275 Comm: jfsCommit Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:clear_inode+0x12a/0x150 fs/inode.c:567
Code: 0c bb a3 ff 43 80 7c 25 00 00 74 08 4c 89 f7 e8 bc 93 ed ff 49 c7 06 60 00 00 00 5b 41 5c 41 5d 41 5e 41 5f c3 e8 e6 ba a3 ff <0f> 0b e8 df ba a3 ff 0f 0b e8 d8 ba a3 ff 0f 0b e8 d1 ba a3 ff 0f
RSP: 0018:ffffc90002d27b08 EFLAGS: 00010093
RAX: ffffffff81dcb8ba RBX: 0000000000000001 RCX: ffff88801e355940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002d27cb0 R08: ffffffff81dcb7e4 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807053b4a0 R15: ffff88807053b270
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f10454850f8 CR3: 000000002b2aa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_evict_inode+0xb1/0x440 fs/jfs/inode.c:166
 evict+0x529/0x930 fs/inode.c:622
 txUpdateMap+0x825/0x9e0 fs/jfs/jfs_txnmgr.c:2401
 txLazyCommit fs/jfs/jfs_txnmgr.c:2698 [inline]
 jfs_lazycommit+0x470/0xc30 fs/jfs/jfs_txnmgr.c:2766
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Modules linked in:
---[ end trace 2f243313199e1cca ]---
RIP: 0010:clear_inode+0x12a/0x150 fs/inode.c:567
Code: 0c bb a3 ff 43 80 7c 25 00 00 74 08 4c 89 f7 e8 bc 93 ed ff 49 c7 06 60 00 00 00 5b 41 5c 41 5d 41 5e 41 5f c3 e8 e6 ba a3 ff <0f> 0b e8 df ba a3 ff 0f 0b e8 d8 ba a3 ff 0f 0b e8 d1 ba a3 ff 0f
RSP: 0018:ffffc90002d27b08 EFLAGS: 00010093
RAX: ffffffff81dcb8ba RBX: 0000000000000001 RCX: ffff88801e355940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002d27cb0 R08: ffffffff81dcb7e4 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807053b4a0 R15: ffff88807053b270
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f10454850f8 CR3: 000000002b2aa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (25):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/22 20:19 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/22 18:50 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/22 16:58 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/22 14:58 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/22 13:49 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/28 17:51 linux-5.15.y 0a51d2d4527b 5df23865 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 kernel BUG in clear_inode
2025/08/16 07:11 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/07/28 12:21 linux-5.15.y c79648372d02 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/07/21 09:39 linux-5.15.y c79648372d02 7117feec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/06/13 03:47 linux-5.15.y 1c700860e8bc 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/06/08 08:03 linux-5.15.y 1c700860e8bc 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/06/01 14:54 linux-5.15.y 98f47d0e9b8c 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/04/21 00:37 linux-5.15.y f7347f400572 2a20f901 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/04/20 23:18 linux-5.15.y f7347f400572 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/01/23 15:58 linux-5.15.y 4735586da88e a44b0418 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/01/21 01:13 linux-5.15.y 4735586da88e 6e87cfa2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/12/09 11:19 linux-5.15.y 0a51d2d4527b 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/12/07 02:24 linux-5.15.y 0a51d2d4527b 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/22 03:09 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/22 00:30 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/22 00:28 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2024/11/22 00:28 linux-5.15.y 0a51d2d4527b 4b25d554 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in clear_inode
2025/05/13 05:34 linux-5.15.y 3b8db0e4f263 f6671af7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in clear_inode
2025/02/07 16:11 linux-5.15.y c16c81c81336 53657d1b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in clear_inode
2025/02/04 20:44 linux-5.15.y c16c81c81336 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in clear_inode
* Struck through repros no longer work on HEAD.