syzbot


kernel BUG in evict

Status: auto-obsoleted due to no activity on 2024/10/10 04:11
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+2d4607167a06f0cd5d67@syzkaller.appspotmail.com
First crash: 215d, last: 126d
Fix commit to backport (bisect log) :
tree: upstream
commit 9b5a04ac3ad9898c4745cba46ea26de74ba56a8e
Author: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Date: Tue May 9 15:29:56 2023 +0000

  nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()

  
Bug presence (2)
Date Name Commit Repro Result
2024/04/20 linux-5.15.y (ToT) c52b9710c83d C [report] kernel BUG in evict
2024/04/20 upstream (ToT) 13a2e429f644 C Didn't crash
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in evict origin:lts-only C done 12 150d 215d 0/3 upstream: reported C repro on 2024/04/20 12:22
upstream kernel BUG in evict fs 1 470d 466d 0/28 auto-obsoleted due to no activity on 2023/11/06 19:12
Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/10/10 03:54 16m retest repro linux-5.15.y OK log
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2024/05/28 11:33 4h37m fix candidate upstream OK (1) job log

Sample crash report:
NILFS (loop3): nilfs_palloc_commit_free_entry (ino=6): entry number 6 already freed
------------[ cut here ]------------
kernel BUG at fs/inode.c:599!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3511 Comm: syz-executor Not tainted 5.15.162-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 d3 ff ec ff e9 d1 fc ff ff e8 f9 30 a3 ff 0f 0b e8 f2 30 a3 ff 0f 0b e8 eb 30 a3 ff <0f> 0b e8 e4 30 a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 d5 30 a3 ff
RSP: 0018:ffffc90002e77ae8 EFLAGS: 00010293
RAX: ffffffff81dd2a75 RBX: 0000000000000064 RCX: ffff8880163f8000
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff8880639381e0 R08: ffffffff81dd2906 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888063938180
R13: ffff8880639381e0 R14: dffffc0000000000 R15: ffff888063938158
FS:  00005555560ca500(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f017ff8 CR3: 0000000067acb000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nilfs_put_root+0x93/0xb0 fs/nilfs2/the_nilfs.c:911
 nilfs_segctor_destroy fs/nilfs2/segment.c:2830 [inline]
 nilfs_detach_log_writer+0x8c7/0xbe0 fs/nilfs2/segment.c:2892
 nilfs_put_super+0x49/0x150 fs/nilfs2/super.c:498
 generic_shutdown_super+0x136/0x2c0 fs/super.c:475
 kill_block_super+0x7a/0xe0 fs/super.c:1414
 deactivate_locked_super+0xa0/0x110 fs/super.c:335
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
 task_work_run+0x129/0x1a0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f81ab784d47
Code: a8 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 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffed7e6c548 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f81ab7f1515 RCX: 00007f81ab784d47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffed7e6c600
RBP: 00007ffed7e6c600 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffed7e6d6c0
R13: 00007f81ab7f1515 R14: 000000000000cb1e R15: 000000000000c782
 </TASK>
Modules linked in:
---[ end trace 15e9cf76dde5a3b2 ]---
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 d3 ff ec ff e9 d1 fc ff ff e8 f9 30 a3 ff 0f 0b e8 f2 30 a3 ff 0f 0b e8 eb 30 a3 ff <0f> 0b e8 e4 30 a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 d5 30 a3 ff
RSP: 0018:ffffc90002e77ae8 EFLAGS: 00010293
RAX: ffffffff81dd2a75 RBX: 0000000000000064 RCX: ffff8880163f8000
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff8880639381e0 R08: ffffffff81dd2906 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888063938180
R13: ffff8880639381e0 R14: dffffc0000000000 R15: ffff888063938158
FS:  00005555560ca500(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f017ff8 CR3: 0000000067acb000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (107):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/07/17 16:56 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 16:48 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 16:39 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:59 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:59 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:59 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:56 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:56 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:56 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:54 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:54 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/07/17 15:54 linux-5.15.y f45bea23c39c 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/25 21:13 linux-5.15.y 4878aadf2d15 04bd2a30 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/24 05:19 linux-5.15.y 4878aadf2d15 edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/24 05:19 linux-5.15.y 4878aadf2d15 edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/24 05:17 linux-5.15.y 4878aadf2d15 edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/24 05:15 linux-5.15.y 4878aadf2d15 edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/06 08:42 linux-5.15.y c61bd26ae81a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/03 18:11 linux-5.15.y c61bd26ae81a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/03 18:09 linux-5.15.y c61bd26ae81a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/03 18:09 linux-5.15.y c61bd26ae81a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/06/03 18:09 linux-5.15.y c61bd26ae81a 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/05/23 05:21 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/05/23 00:54 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/05/23 00:52 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/05/23 00:50 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/05/23 00:48 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/22 14:19 linux-5.15.y c52b9710c83d 36c961ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/22 14:09 linux-5.15.y c52b9710c83d 36c961ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/22 14:09 linux-5.15.y c52b9710c83d 36c961ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/22 14:09 linux-5.15.y c52b9710c83d 36c961ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/22 14:09 linux-5.15.y c52b9710c83d 36c961ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/22 04:32 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/21 15:10 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/20 12:37 linux-5.15.y c52b9710c83d af24b050 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/20 12:22 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/20 12:12 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/20 12:10 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/20 12:10 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/04/20 12:09 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan kernel BUG in evict
2024/05/23 03:52 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in evict
2024/05/23 03:50 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in evict
2024/05/23 03:48 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in evict
2024/05/23 03:46 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 kernel BUG in evict
* Struck through repros no longer work on HEAD.