syzbot


WARNING in dpm_sysfs_add (2)

Status: auto-obsoleted due to no activity on 2024/04/11 10:23
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+77ae78646bee8a004136@syzkaller.appspotmail.com
First crash: 246d, last: 134d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in dpm_sysfs_add fs 26 378d 948d 0/26 auto-obsoleted due to no activity on 2023/08/23 09:06

Sample crash report:
sysfs group 'power' not found for kobject 'ueagle-atm!adi930.fw'
WARNING: CPU: 1 PID: 55 at fs/sysfs/group.c:282 sysfs_remove_group+0x12a/0x170 fs/sysfs/group.c:282
Modules linked in:
CPU: 1 PID: 55 Comm: kworker/1:2 Not tainted 6.6.0-rc2-syzkaller-00048-g42dc814987c1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Workqueue: events request_firmware_work_func
RIP: 0010:sysfs_remove_group+0x12a/0x170 fs/sysfs/group.c:282
Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 40 54 a0 8a e8 86 87 37 ff <0f> 0b eb 98 e8 4d 0a c7 ff e9 01 ff ff ff 48 89 df e8 40 0a c7 ff
RSP: 0018:ffffc9000130f980 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffffff8b1271e0 RCX: 0000000000000000
RDX: ffff888014efbb80 RSI: ffffffff814df146 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88803d9cb008
R13: ffffffff8b127780 R14: 1ffff92000261f3f R15: ffff88803d9cb050
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f44dd80e000 CR3: 0000000034825000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 dpm_sysfs_add+0x1e6/0x280 drivers/base/power/sysfs.c:734
 device_add+0x9db/0x1aa0 drivers/base/core.c:3584
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:82 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:158 [inline]
 firmware_fallback_sysfs+0x2e2/0xb90 drivers/base/firmware_loader/fallback.c:234
 _request_firmware+0xe5a/0x12a0 drivers/base/firmware_loader/main.c:909
 request_firmware_work_func+0xeb/0x240 drivers/base/firmware_loader/main.c:1160
 process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
 kthread+0x33c/0x440 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/21 14:18 upstream 42dc814987c1 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in dpm_sysfs_add
2023/09/21 12:50 upstream 42dc814987c1 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dpm_sysfs_add
2023/12/13 22:56 upstream 5bd7ef53ffe5 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in dpm_sysfs_add
2023/12/26 18:42 upstream fbafc3e621c3 fb427a07 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in dpm_sysfs_add
2024/01/12 10:22 upstream 22d29f1112c8 00f3cc59 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in dpm_sysfs_add
2023/09/21 12:44 upstream 42dc814987c1 0b6a67ac .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in dpm_sysfs_add
* Struck through repros no longer work on HEAD.