syzbot


WARNING in dpm_sysfs_add

Status: upstream: reported on 2024/08/10 07:52
Reported-by: syzbot+d93f99ae06b8daf80c7c@syzkaller.appspotmail.com
First crash: 66d, last: 8d13h
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in dpm_sysfs_add fs 26 522d 1092d 0/28 auto-obsoleted due to no activity on 2023/08/23 09:06
upstream WARNING in dpm_sysfs_add (2) fs 6 277d 386d 0/28 auto-obsoleted due to no activity on 2024/04/11 10:23

Sample crash report:
usb 2-1: Falling back to sysfs fallback for: ueagle-atm/adi930.fw
------------[ cut here ]------------
sysfs group 'power' not found for kobject 'ueagle-atm!adi930.fw'
WARNING: CPU: 0 PID: 1078 at fs/sysfs/group.c:281 sysfs_remove_group+0x179/0x2a0 fs/sysfs/group.c:279
Modules linked in:
CPU: 0 PID: 1078 Comm: kworker/0:2 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events request_firmware_work_func
RIP: 0010:sysfs_remove_group+0x179/0x2a0 fs/sysfs/group.c:279
Code: 8b 36 4c 89 e0 48 c1 e8 03 80 3c 28 00 74 08 4c 89 e7 e8 5a a3 cc ff 49 8b 14 24 48 c7 c7 c0 bb 99 8a 4c 89 f6 e8 07 83 4e ff <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 11 d9 82 ff
RSP: 0018:ffffc90004dff978 EFLAGS: 00010246
RAX: 87a0ef4f5c0b6300 RBX: ffff8880795b0038 RCX: ffff888021a3bb80
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81668a3c R09: ffffed10172067a8
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880795b0008
R13: 1ffffffff15f609c R14: ffffffff8afb04c0 R15: ffff8880247540e8
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb4c423e000 CR3: 0000000028a38000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dpm_sysfs_add+0x203/0x270 drivers/base/power/sysfs.c:734
 device_add+0x702/0xfd0 drivers/base/core.c:3372
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:507 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:583 [inline]
 firmware_fallback_sysfs+0x3f0/0xc90 drivers/base/firmware_loader/fallback.c:659
 _request_firmware+0xbb1/0x1200 drivers/base/firmware_loader/main.c:848
 request_firmware_work_func+0x126/0x270 drivers/base/firmware_loader/main.c:1097
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/07 07:21 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dpm_sysfs_add
2024/08/10 07:51 linux-5.15.y 7e89efd3ae1c 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in dpm_sysfs_add
* Struck through repros no longer work on HEAD.