syzbot


BUG: unable to handle kernel paging request in quarantine_remove_cache

Status: auto-closed as invalid on 2020/09/21 13:58
Reported-by: syzbot+b4dfd24532ebe697bd7a@syzkaller.appspotmail.com
First crash: 771d, last: 766d
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 BUG: unable to handle kernel NULL pointer dereference in quarantine_remove_cache 5 162d 175d 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 551d 551d 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 547d 566d 0/1 auto-closed as invalid on 2021/04/28 15:13
linux-4.19 BUG: unable to handle kernel paging request in quarantine_remove_cache (2) 4 307d 373d 0/1 auto-closed as invalid on 2021/12/23 22:53

Sample crash report:
BUG: unable to handle kernel paging request at 0000000707000000
audit: type=1800 audit(1590328673.249:116): pid=25097 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="bus" dev="sda1" ino=16817 res=0
IP: qlist_move_cache+0x5e/0xb0 mm/kasan/quarantine.c:275
PGD 6013e067 P4D 6013e067 PUD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 5 Comm: kworker/u4:0 Not tainted 4.14.181-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
task: ffff8880a9c7c140 task.stack: ffff8880a9cc8000
RIP: 0010:qlist_move_cache+0x5e/0xb0 mm/kasan/quarantine.c:275
RSP: 0018:ffff8880a9ccfb10 EFLAGS: 00010006
RAX: 0000000000001100 RBX: 0000000707000000 RCX: ffffea0000001a9f
RDX: ffff88808a3e0140 RSI: ffff8880a9ccfb40 RDI: ffff888000100ec0
RBP: ffffffff8a39b0c8 R08: 00000000000001db R09: ffffffff89e55818
R10: ffff8880a9c7cab8 R11: ffff8880a9c7c140 R12: ffff8880a9ccfb40
R13: ffff888093269640 R14: 0000000707000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000707000000 CR3: 000000006013d000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 quarantine_remove_cache+0x63/0xd0 mm/kasan/quarantine.c:317
 shutdown_cache+0xe/0x1b0 mm/slab_common.c:540
 kmem_cache_destroy+0x1cd/0x230 mm/slab_common.c:842
 tipc_server_stop+0x13a/0x171 net/tipc/server.c:637
 tipc_topsrv_stop net/tipc/subscr.c:390 [inline]
 tipc_topsrv_exit_net+0x168/0x28a net/tipc/subscr.c:402
 ops_exit_list.isra.0+0x9d/0x140 net/core/net_namespace.c:142
 cleanup_net+0x3bb/0x820 net/core/net_namespace.c:484
 process_one_work+0x7c0/0x14c0 kernel/workqueue.c:2116
 worker_thread+0x5d7/0x1080 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 00 eb 25 48 83 7d 00 00 8b 40 14 74 60 48 8b 55 08 48 89 1a 48 89 5d 08 48 c7 03 00 00 00 00 48 01 45 10 4d 85 f6 74 3c 4c 89 f3 <4d> 8b 36 48 89 df e8 67 ff ff ff 4c 39 e8 75 c8 49 83 3c 24 00 
RIP: qlist_move_cache+0x5e/0xb0 mm/kasan/quarantine.c:275 RSP: ffff8880a9ccfb10
CR2: 0000000707000000
---[ end trace 4f7adcccf00b3f0d ]---

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/05/24 13:58 linux-4.14.y a41ba30d9df2 ce7ca010 .config log report
ci2-linux-4-14 2020/05/18 18:07 linux-4.14.y ab9dfda23248 24d91142 .config log report