syzbot


BUG: unable to handle kernel paging request in quarantine_remove_cache

Status: auto-closed as invalid on 2021/04/28 15:13
Reported-by: syzbot+d6b8932d12690f43eb56@syzkaller.appspotmail.com
First crash: 1233d, last: 1213d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: unable to handle kernel paging request in quarantine_remove_cache 2 1432d 1438d 0/1 auto-closed as invalid on 2020/09/21 13:58
linux-4.19 BUG: unable to handle kernel NULL pointer dereference in quarantine_remove_cache 5 829d 841d 0/1 auto-closed as invalid on 2022/05/18 10:27
linux-4.14 BUG: unable to handle kernel paging request in quarantine_remove_cache (2) 1 1218d 1218d 0/1 auto-closed as invalid on 2021/04/24 11:49
linux-4.19 BUG: unable to handle kernel paging request in quarantine_remove_cache (2) 4 974d 1040d 0/1 auto-closed as invalid on 2021/12/23 22:53

Sample crash report:
netlink: 'syz-executor.3': attribute type 4 has an invalid length.
BUG: unable to handle kernel paging request at 0000000707000700
PGD 8cb28067 P4D 8cb28067 PUD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8140 Comm: syz-executor.4 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:qlist_move_cache+0x67/0xd0 mm/kasan/quarantine.c:275
Code: 00 00 00 eb 22 49 83 3e 00 74 7d 49 8b 46 08 4c 89 28 4d 89 6e 08 49 c7 45 00 00 00 00 00 49 01 56 10 4d 85 ff 74 56 4d 89 fd <4d> 8b 3f 4c 89 ef e8 be 3e 91 ff 48 c1 e8 0c 48 c1 e0 06 4c 01 e0
RSP: 0018:ffff88808cb4fb78 EFLAGS: 00010006
RAX: ffff888096b06140 RBX: ffff88808cb4fbb0 RCX: ffffea000149df87
RDX: 0000000000001100 RSI: ffffffff812c4f4a RDI: 0000000000000007
RBP: ffff8880a428a300 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: ffffea0000000000
R13: 0000000707000700 R14: ffffffff8d253518 R15: 0000000707000700
FS:  0000000002be3940(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000707000700 CR3: 000000008cb27000 CR4: 00000000001426f0
DR0: fffffffffffffffc DR1: 0000000000000009 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 quarantine_remove_cache+0x73/0x100 mm/kasan/quarantine.c:317
 shutdown_cache+0xe/0x1e0 mm/slab_common.c:570
 kmem_cache_destroy+0x25a/0x2e0 mm/slab_common.c:925
 p9_client_destroy+0x250/0x360 net/9p/client.c:1112
 v9fs_session_close+0x45/0x2c0 fs/9p/v9fs.c:513
 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:233
 deactivate_locked_super+0x94/0x160 fs/super.c:329
 deactivate_super+0x174/0x1a0 fs/super.c:360
 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x460cc7
Code: 64 89 04 25 d0 02 00 00 58 5f ff d0 48 89 c7 e8 2f be ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fffa9302fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000460cc7
RDX: 00000000004032c8 RSI: 0000000000000002 RDI: 00007fffa9303090
RBP: 00000000000e3b51 R08: 0000000000000000 R09: 000000000000000b
R10: 0000000000000005 R11: 0000000000000246 R12: 00007fffa9304140
R13: 0000000002be4a60 R14: 0000000000000000 R15: 00000000000e3985
Modules linked in:
CR2: 0000000707000700
---[ end trace 0bc56188ec52e96d ]---
RIP: 0010:qlist_move_cache+0x67/0xd0 mm/kasan/quarantine.c:275
Code: 00 00 00 eb 22 49 83 3e 00 74 7d 49 8b 46 08 4c 89 28 4d 89 6e 08 49 c7 45 00 00 00 00 00 49 01 56 10 4d 85 ff 74 56 4d 89 fd <4d> 8b 3f 4c 89 ef e8 be 3e 91 ff 48 c1 e8 0c 48 c1 e0 06 4c 01 e0
RSP: 0018:ffff88808cb4fb78 EFLAGS: 00010006
RAX: ffff888096b06140 RBX: ffff88808cb4fbb0 RCX: ffffea000149df87
RDX: 0000000000001100 RSI: ffffffff812c4f4a RDI: 0000000000000007
RBP: ffff8880a428a300 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: ffffea0000000000
R13: 0000000707000700 R14: ffffffff8d253518 R15: 0000000707000700
FS:  0000000002be3940(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000707000700 CR3: 000000008cb27000 CR4: 00000000001426f0
DR0: fffffffffffffffc DR1: 0000000000000009 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/12/29 15:12 linux-4.19.y 13d2ce42de8c 80910769 .config console log report info ci2-linux-4-19
2020/12/10 12:31 linux-4.19.y 4abf26854aad 2a55c22b .config console log report info ci2-linux-4-19
* Struck through repros no longer work on HEAD.