syzbot


WARNING: ODEBUG bug in ieee80211_led_exit (2)

Status: upstream: reported on 2024/10/23 14:23
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+e84ecca6d1fa09a9b3d9@syzkaller.appspotmail.com
First crash: 47d, last: 3d03h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [wireless?] WARNING: ODEBUG bug in ieee80211_led_exit (2) 0 (1) 2024/10/23 14:23
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING: ODEBUG bug in ieee80211_led_exit wireless usb C 5 601d 783d 0/28 auto-obsoleted due to no activity on 2023/08/12 07:49

Sample crash report:
------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88811ea98630 object type: timer_list hint: tpt_trig_timer+0x0/0x300 net/mac80211/led.c:145
WARNING: CPU: 1 PID: 5215 at lib/debugobjects.c:612 debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Modules linked in:
CPU: 1 UID: 0 PID: 5215 Comm: kworker/1:3 Not tainted 6.13.0-rc1-syzkaller-ge70140ba0d2b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: usb_hub_wq hub_event
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 24 47 87 41 56 4c 89 e6 48 c7 c7 60 19 47 87 e8 6f 4d c0 fe 90 <0f> 0b 90 90 58 83 05 e6 e6 f6 07 01 48 83 c4 18 5b 5d 41 5c 41 5d
RSP: 0018:ffffc90001f4f4e8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffc9000f776000
RDX: 0000000000100000 RSI: ffffffff811f5886 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 000000000016bbb8 R12: ffffffff87472000
R13: ffffffff872aa600 R14: ffffffff86d0aea0 R15: ffffc90001f4f5f8
FS:  0000000000000000(0000) GS:ffff8881f5900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005650a7bbc098 CR3: 0000000117f24000 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:1099 [inline]
 debug_check_no_obj_freed+0x4b7/0x600 lib/debugobjects.c:1129
 slab_free_hook mm/slub.c:2269 [inline]
 slab_free mm/slub.c:4598 [inline]
 kfree+0x294/0x470 mm/slub.c:4746
 ieee80211_led_exit+0x162/0x1c0 net/mac80211/led.c:210
 ieee80211_unregister_hw+0x27e/0x3a0 net/mac80211/main.c:1696
 rt2x00lib_remove_hw drivers/net/wireless/ralink/rt2x00/rt2x00dev.c:1085 [inline]
 rt2x00lib_remove_dev+0x528/0x640 drivers/net/wireless/ralink/rt2x00/rt2x00dev.c:1550
 rt2x00usb_disconnect+0x71/0x240 drivers/net/wireless/ralink/rt2x00/rt2x00usb.c:872
 usb_unbind_interface+0x1e2/0x960 drivers/usb/core/driver.c:458
 device_remove drivers/base/dd.c:569 [inline]
 device_remove+0x122/0x170 drivers/base/dd.c:561
 __device_release_driver drivers/base/dd.c:1273 [inline]
 device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1296
 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576
 device_del+0x396/0x9f0 drivers/base/core.c:3854
 usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1418
 usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2304
 hub_port_connect drivers/usb/core/hub.c:5361 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x1bed/0x4f40 drivers/usb/core/hub.c:5903
 process_one_work+0x9c5/0x1ba0 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 (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/02 17:08 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing e70140ba0d2b b499ea68 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING: ODEBUG bug in ieee80211_led_exit
2024/10/30 17:47 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c67e9601e29a fb888278 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING: ODEBUG bug in ieee80211_led_exit
2024/10/23 09:44 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c6d9e43954bf 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING: ODEBUG bug in ieee80211_led_exit
2024/10/19 13:06 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 07b887f8236e cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING: ODEBUG bug in ieee80211_led_exit
* Struck through repros no longer work on HEAD.