kernel BUG in jffs2_del_ino_cache

Status: upstream: reported C repro on 2024/04/03 08:31
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+93f6bfed6a4a702b48cc@syzkaller.appspotmail.com
First crash: 923d, last: 36m
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2026/10/06 upstream (ToT) 22430ae5d90a C [report] kernel BUG in jffs2_del_ino_cache
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 kernel BUG in jffs2_del_ino_cache origin:upstream -1 syz, C 593 31m 66d 0/2 upstream: reported C repro on 2026/08/07 19:27
upstream kernel BUG in jffs2_del_ino_cache jffs2 prio:normal -1 syz, C error error 10196 41m 922d 0/29 upstream: reported C repro on 2024/04/03 14:13
linux-6.1 kernel BUG in jffs2_del_ino_cache origin:upstream -1 syz, C error 2286 now 923d 0/3 upstream: reported C repro on 2024/04/03 08:31
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2026/05/28 01:57 18m retest repro linux-5.15.y report log
2026/02/20 04:39 9m retest repro linux-5.15.y report log
2025/12/12 04:11 17m retest repro linux-5.15.y report log
2025/10/03 00:19 10m retest repro linux-5.15.y report log
2025/07/24 15:09 1h22m retest repro linux-5.15.y report log
2025/05/08 05:03 10m retest repro linux-5.15.y report log
2025/02/25 07:54 11m retest repro linux-5.15.y report log

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/jffs2/nodelist.c:462!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4303 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:jffs2_del_ino_cache+0x2a9/0x2b0 fs/jffs2/nodelist.c:462
Code: 19 ff e9 60 ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5a fe ff ff 4c 89 e7 e8 81 07 19 ff e9 4d fe ff ff e8 c7 e4 d3 fe <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 10 48
RSP: 0018:ffffc9000304fb38 EFLAGS: 00010293
RAX: ffffffff82a517e9 RBX: ffff888071f8d000 RCX: ffff88802af21dc0
RDX: 0000000000000000 RSI: ffff888071f8d000 RDI: ffff88807b934000
RBP: 0000000000000006 R08: ffff88807b93436b R09: 1ffff1100f72686d
R10: dffffc0000000000 R11: ffffed100f72686e R12: ffff888071f8d000
R13: dffffc0000000000 R14: ffff888071f8d020 R15: ffff88807b934000
FS:  0000555569da4500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555569dbfa38 CR3: 000000007372c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jffs2_do_clear_inode+0x31b/0x390 fs/jffs2/readinode.c:1443
 evict+0x4b6/0x8b0 fs/inode.c:647
 dispose_list fs/inode.c:680 [inline]
 evict_inodes+0x650/0x6e0 fs/inode.c:734
 generic_shutdown_super+0x93/0x300 fs/super.c:454
 kill_mtd_super+0x1f/0x60 drivers/mtd/mtdsuper.c:196
 jffs2_kill_sb+0x92/0xb0 fs/jffs2/super.c:349
 deactivate_locked_super+0x93/0xf0 fs/super.c:335
 cleanup_mnt+0x426/0x4d0 fs/namespace.c:1148
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0157ee0317
Code: a2 c7 05 dc 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffd1ef6f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f0157f75474 RCX: 00007f0157ee0317
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffd1ef7050
RBP: 00007fffd1ef7050 R08: 00007fffd1ef8050 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd1ef80e0
R13: 00007f0157f75474 R14: 000000000001419d R15: 00007fffd1ef8120
 </TASK>
Modules linked in:
---[ end trace c01e97b61a86697f ]---
RIP: 0010:jffs2_del_ino_cache+0x2a9/0x2b0 fs/jffs2/nodelist.c:462
Code: 19 ff e9 60 ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5a fe ff ff 4c 89 e7 e8 81 07 19 ff e9 4d fe ff ff e8 c7 e4 d3 fe <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 10 48
RSP: 0018:ffffc9000304fb38 EFLAGS: 00010293
RAX: ffffffff82a517e9 RBX: ffff888071f8d000 RCX: ffff88802af21dc0
RDX: 0000000000000000 RSI: ffff888071f8d000 RDI: ffff88807b934000
RBP: 0000000000000006 R08: ffff88807b93436b R09: 1ffff1100f72686d
R10: dffffc0000000000 R11: ffffed100f72686e R12: ffff888071f8d000
R13: dffffc0000000000 R14: ffff888071f8d020 R15: ffff88807b934000
FS:  0000555569da4500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555569dbfa38 CR3: 000000007372c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (585):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/08 00:46 linux-5.15.y aabd761612db e4ef95d6 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2024/04/03 09:20 linux-5.15.y 9465fef4ae35 7925100d .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in jffs2_del_ino_cache
2026/10/13 08:37 linux-5.15.y a051a4bf909f 5a1eeac4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/12 23:07 linux-5.15.y a051a4bf909f 745a967f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/12 21:18 linux-5.15.y a051a4bf909f 745a967f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/12 21:16 linux-5.15.y a051a4bf909f 745a967f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/12 02:50 linux-5.15.y a051a4bf909f 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/11 18:36 linux-5.15.y a051a4bf909f 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/11 11:33 linux-5.15.y a051a4bf909f 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/11 00:32 linux-5.15.y a051a4bf909f 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/09 22:22 linux-5.15.y a051a4bf909f 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/09 18:46 linux-5.15.y a051a4bf909f 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/08 21:02 linux-5.15.y a051a4bf909f b2734a59 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/08 18:35 linux-5.15.y a051a4bf909f b2734a59 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/08 10:57 linux-5.15.y a051a4bf909f 4f6a9fcf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/08 06:20 linux-5.15.y a051a4bf909f 4f6a9fcf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/07 11:42 linux-5.15.y a051a4bf909f 6520ecdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/06 01:45 linux-5.15.y a051a4bf909f f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/06 00:48 linux-5.15.y a051a4bf909f f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/05 16:43 linux-5.15.y a051a4bf909f af63e995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/05 13:04 linux-5.15.y a051a4bf909f af63e995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/04 08:55 linux-5.15.y a051a4bf909f 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/04 07:02 linux-5.15.y a051a4bf909f 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/03 12:49 linux-5.15.y a051a4bf909f 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/03 12:05 linux-5.15.y a051a4bf909f 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/03 03:19 linux-5.15.y 0248c33e835e 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/02 23:48 linux-5.15.y 0248c33e835e 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/02 19:35 linux-5.15.y 0248c33e835e 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/02 18:15 linux-5.15.y 0248c33e835e 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/02 06:23 linux-5.15.y 0248c33e835e 6d32eb1f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/02 03:01 linux-5.15.y 0248c33e835e 6d32eb1f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/01 13:37 linux-5.15.y 0248c33e835e f5cdae2f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/10/01 00:24 linux-5.15.y 0248c33e835e 38f7f0d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/30 20:03 linux-5.15.y 0248c33e835e 38f7f0d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/30 19:44 linux-5.15.y 0248c33e835e 38f7f0d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/30 15:03 linux-5.15.y 0248c33e835e 7808aef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/30 12:52 linux-5.15.y 0248c33e835e 7808aef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/30 11:24 linux-5.15.y 0248c33e835e 7808aef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/30 07:40 linux-5.15.y 0248c33e835e 7808aef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/29 23:08 linux-5.15.y 0248c33e835e 328436b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/29 19:04 linux-5.15.y 0248c33e835e 328436b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/29 19:04 linux-5.15.y 0248c33e835e 328436b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/29 10:24 linux-5.15.y 0248c33e835e 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/29 02:31 linux-5.15.y 0248c33e835e 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/28 21:06 linux-5.15.y 0248c33e835e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2026/09/26 03:16 linux-5.15.y 0248c33e835e a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in jffs2_del_ino_cache
2024/04/15 06:19 linux-5.15.y fa3df276cd36 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in jffs2_del_ino_cache
2024/04/03 08:30 linux-5.15.y 9465fef4ae35 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in jffs2_del_ino_cache
* Struck through repros no longer work on HEAD.