syzbot


WARNING: ODEBUG bug in __mod_timer (2)

Status: upstream: reported on 2025/01/06 10:03
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+50abac586029cf8758e0@syzkaller.appspotmail.com
First crash: 8d00h, last: 8d00h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [wireless?] WARNING: ODEBUG bug in __mod_timer (2) 0 (1) 2025/01/06 10:03
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING: ODEBUG bug in __mod_timer kernel 1 629d 591d 23/28 fixed on 2023/09/28 17:51

Sample crash report:
------------[ 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>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/01 16:52 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING: ODEBUG bug in __mod_timer
* Struck through repros no longer work on HEAD.