linux-kernel - [syzbot] [wireless?] WARNING: ODEBUG bug in __mod

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Message-ID: <677baa6d.050a0220.a40f5.0009.GAE@google.com>
Date: Mon, 06 Jan 2025 02:03:25 -0800
From: syzbot <syzbot+50abac586029cf8758e0@...kaller.appspotmail.com>
To: johannes@...solutions.net, linux-kernel@...r.kernel.org, 
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] [wireless?] WARNING: ODEBUG bug in __mod_timer (2)

Hello,

syzbot found the following issue on:

HEAD commit:    ccb98ccef0e5 Merge tag 'platform-drivers-x86-v6.13-4' of g..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11a2d6df980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=86dd15278dbfe19f
dashboard link: https://syzkaller.appspot.com/bug?extid=50abac586029cf8758e0
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d24eb225cff7/disk-ccb98cce.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/dd81532f8240/vmlinux-ccb98cce.xz
kernel image: https://storage.googleapis.com/syzbot-assets/18b08e4bbf40/bzImage-ccb98cce.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+50abac586029cf8758e0@...kaller.appspotmail.com

------------[ cut here ]------------
ODEBUG: assert_init not available (active state 0) object: ffff888068a59b28 object type: timer_list hint: ieee80211_ibss_timer+0x0/0x90
WARNING: CPU: 0 PID: 7396 at lib/debugobjects.c:612 debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Modules linked in:
CPU: 0 UID: 0 PID: 7396 Comm: kworker/u8:11 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 48 8b 14 dd e0 81 b1 8b 41 56 4c 89 e6 48 c7 c7 60 76 b1 8b e8 5f 4d bc fc 90 <0f> 0b 90 90 58 83 05 c6 4f 7f 0b 01 48 83 c4 18 5b 5d 41 5c 41 5d
RSP: 0000:ffffc900045ef7c8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffffffff815a1789
RDX: ffff88807ea2da00 RSI: ffffffff815a1796 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8bb17d40
R13: ffffffff8b4f81a0 R14: ffffffff8a928850 R15: ffffc900045ef888
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19769f4d58 CR3: 0000000032a52000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 debug_object_assert_init+0x1ee/0x2f0 lib/debugobjects.c:1020
 debug_timer_assert_init kernel/time/timer.c:845 [inline]
 debug_assert_init kernel/time/timer.c:890 [inline]
 __mod_timer+0xae/0xdc0 kernel/time/timer.c:1071
 ieee80211_sta_merge_ibss net/mac80211/ibss.c:1272 [inline]
 ieee80211_ibss_work+0x481/0x14c0 net/mac80211/ibss.c:1672
 ieee80211_iface_work+0xd01/0xf00 net/mac80211/iface.c:1689
 cfg80211_wiphy_work+0x3de/0x560 net/wireless/core.c:440
 process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>


---
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