syzbot


WARNING: ODEBUG bug in ops_free_list

Status: fixed on 2023/02/24 13:51
Subsystems: net
[Documentation on labels]
Fix commit: 1946014ca3b1 rxrpc: fix a race in rxrpc_exit_net()
First crash: 787d, last: 787d
Discussions (7)
Title Replies (including bot) Last reply
[PATCH 4.19 00/53] 4.19.240-rc1 review 65 (65) 2022/04/30 07:56
[PATCH 5.10 00/86] 5.10.113-rc1 review 96 (96) 2022/04/27 20:32
[PATCH 5.15 000/124] 5.15.36-rc1 review 137 (137) 2022/04/27 11:11
[PATCH 5.4 00/62] 5.4.191-rc1 review 68 (68) 2022/04/27 11:06
[PATCH 5.17 000/146] 5.17.5-rc1 review 156 (156) 2022/04/27 10:01
[PATCH net] rxrpc: Restore removed timer deletion 5 (5) 2022/04/15 10:00
[PATCH net] rxrpc: fix a race in rxrpc_exit_net() 5 (5) 2022/04/12 16:33

Sample crash report:
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: rxrpc_peer_keepalive_timeout+0x0/0xb0
WARNING: CPU: 0 PID: 3660 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 3660 Comm: kworker/u4:6 Not tainted 5.17.0-syzkaller-13993-g88e6c0207623 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 00 1c 26 8a 4c 89 ee 48 c7 c7 00 10 26 8a e8 b1 e7 28 05 <0f> 0b 83 05 15 eb c5 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc9000353fb00 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff888029196140 RSI: ffffffff815efad8 RDI: fffff520006a7f52
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815ea4ae R11: 0000000000000000 R12: ffffffff89ce23e0
R13: ffffffff8a2614e0 R14: ffffffff816628c0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1f2908924 CR3: 0000000043720000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __debug_check_no_obj_freed lib/debugobjects.c:992 [inline]
 debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1023
 kfree+0xd6/0x310 mm/slab.c:3809
 ops_free_list.part.0+0x119/0x370 net/core/net_namespace.c:176
 ops_free_list net/core/net_namespace.c:174 [inline]
 cleanup_net+0x591/0xb00 net/core/net_namespace.c:598
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/04/02 21:05 upstream 88e6c0207623 79a2a8fc .config console log report info ci-upstream-kasan-gce-selinux-root WARNING: ODEBUG bug in ops_free_list
* Struck through repros no longer work on HEAD.