syzbot


WARNING: ODEBUG bug in batadv_nc_mesh_free

Status: closed as dup on 2021/10/22 19:36
Subsystems: batman
[Documentation on labels]
Reported-by: syzbot+1dca817d274a3fb19f2b@syzkaller.appspotmail.com
First crash: 946d, last: 939d
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING: ODEBUG bug in batadv_nc_mesh_free (log)
Repro: C syz .config
  
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING in batadv_nc_mesh_free batman C inconclusive 1 946d 946d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] WARNING: ODEBUG bug in batadv_nc_mesh_free 1 (2) 2021/10/22 19:36
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING: ODEBUG bug in batadv_nc_mesh_free syz error 124 574d 1621d 0/1 upstream: reported syz repro on 2019/12/17 06:17
linux-4.19 WARNING: ODEBUG bug in batadv_nc_mesh_free 1 1478d 1478d 0/1 auto-closed as invalid on 2020/09/05 02:55
linux-4.19 WARNING: ODEBUG bug in batadv_nc_mesh_free (2) C error 73 458d 1018d 0/1 upstream: reported C repro on 2021/08/10 20:05

Sample crash report:
RSP: 002b:00007ffc386addf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f26819811b9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007ffc386ade10 R08: 0000000000000002 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
------------[ cut here ]------------
ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0
WARNING: CPU: 1 PID: 6542 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 1 PID: 6542 Comm: syz-executor634 Not tainted 5.15.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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 80 40 e4 89 4c 89 ee 48 c7 c7 80 34 e4 89 e8 9d 20 15 05 <0f> 0b 83 05 95 18 90 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc90002d6ecc0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000
RDX: ffff88801df15580 RSI: ffffffff815e9d98 RDI: fffff520005add8a
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815e3b3e R11: 0000000000000000 R12: ffffffff898de520
R13: ffffffff89e43b00 R14: ffffffff81659a40 R15: 1ffff920005adda3
FS:  00005555556a5300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f339803d018 CR3: 000000007c281000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 debug_object_assert_init lib/debugobjects.c:895 [inline]
 debug_object_assert_init+0x1f4/0x2e0 lib/debugobjects.c:866
 debug_timer_assert_init kernel/time/timer.c:739 [inline]
 debug_assert_init kernel/time/timer.c:784 [inline]
 del_timer+0x6d/0x110 kernel/time/timer.c:1204
 try_to_grab_pending+0x6d/0xd0 kernel/workqueue.c:1270
 __cancel_work_timer+0xa6/0x570 kernel/workqueue.c:3129
 batadv_nc_mesh_free+0x41/0x120 net/batman-adv/network-coding.c:1869
 batadv_mesh_free+0x7d/0x170 net/batman-adv/main.c:245
 batadv_mesh_init+0x62f/0x710 net/batman-adv/main.c:226
 batadv_softif_init_late+0xad4/0xdd0 net/batman-adv/soft-interface.c:804
 register_netdevice+0x51e/0x1500 net/core/dev.c:10229
 batadv_softif_newlink+0x6e/0x90 net/batman-adv/soft-interface.c:1068
 __rtnl_newlink+0x106d/0x1750 net/core/rtnetlink.c:3458
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3506
 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5572
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2510
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1935
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f26819811b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc386addf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f26819811b9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007ffc386ade10 R08: 0000000000000002 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/10/28 17:14 upstream 1fc596a56b33 be531bb4 .config console log report syz C ci-upstream-kasan-gce WARNING: ODEBUG bug in batadv_nc_mesh_free
2021/10/22 01:43 net-old e0bfcf9c77d9 c5cb7da8 .config console log report syz C ci-upstream-net-this-kasan-gce WARNING: ODEBUG bug in batadv_nc_mesh_free
2021/10/22 05:01 net-next-old ab98bbee072c 55f90bc6 .config console log report syz C ci-upstream-net-kasan-gce WARNING: ODEBUG bug in batadv_nc_mesh_free
2021/10/22 07:41 net-old 397430b50a36 55f90bc6 .config console log report info ci-upstream-net-this-kasan-gce WARNING: ODEBUG bug in batadv_nc_mesh_free
* Struck through repros no longer work on HEAD.