syzbot


WARNING in netdev_queue_update_kobjects

Status: upstream: reported on 2024/04/18 15:41
Reported-by: syzbot+16094e9764e9c6f4eac0@syzkaller.appspotmail.com
First crash: 16d, last: 2d17h
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in netdev_queue_update_kobjects fs 6 880d 911d 0/26 auto-closed as invalid on 2022/03/06 23:23
upstream WARNING in netdev_queue_update_kobjects (2) fs C error 18 12d 12d 0/26 upstream: reported C repro on 2024/04/22 15:46
linux-6.1 WARNING in netdev_queue_update_kobjects 16 3d14h 16d 0/3 upstream: reported on 2024/04/19 01:14

Sample crash report:
------------[ cut here ]------------
sysfs group 'byte_queue_limits' not found for kobject 'tx-0'
WARNING: CPU: 1 PID: 3827 at fs/sysfs/group.c:281 sysfs_remove_group+0x179/0x2a0 fs/sysfs/group.c:279
Modules linked in:
CPU: 1 PID: 3827 Comm: kbnepd bnep0 Not tainted 5.15.157-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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 8a b7 cc ff 49 8b 14 24 48 c7 c7 c0 bb 99 8a 4c 89 f6 e8 97 87 4e ff <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 51 df 82 ff
RSP: 0000:ffffc90003807928 EFLAGS: 00010246
RAX: e2920465a2feee00 RBX: ffff88807b1efc48 RCX: ffff88807c18d940
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8166862c R09: ffffed1017364f24
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807b1efc18
R13: 1ffffffff16f64b4 R14: ffffffff8b7b2cc0 R15: ffff88801aaf1cb0
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d11922000 CR3: 000000005e910000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 netdev_queue_update_kobjects+0x37c/0x3f0 net/core/net-sysfs.c:1724
 remove_queue_kobjects net/core/net-sysfs.c:1823 [inline]
 netdev_unregister_kobject+0x10d/0x250 net/core/net-sysfs.c:1976
 unregister_netdevice_many+0x13a6/0x18f0 net/core/dev.c:11120
 unregister_netdevice_queue net/core/dev.c:11026 [inline]
 unregister_netdevice include/linux/netdevice.h:3012 [inline]
 unregister_netdev+0x19b/0x210 net/core/dev.c:11152
 bnep_session+0x2ac0/0x2ca0 net/bluetooth/bnep/core.c:524
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
 </TASK>

Crashes (7):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/30 20:36 linux-5.15.y b925f60c6ee7 3ce4924c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in netdev_queue_update_kobjects
2024/04/23 13:30 linux-5.15.y c52b9710c83d 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in netdev_queue_update_kobjects
2024/04/23 12:00 linux-5.15.y c52b9710c83d 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in netdev_queue_update_kobjects
2024/04/18 15:40 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in netdev_queue_update_kobjects
2024/05/02 09:33 linux-5.15.y b925f60c6ee7 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in netdev_queue_update_kobjects
2024/04/30 18:12 linux-5.15.y b925f60c6ee7 3ce4924c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in netdev_queue_update_kobjects
2024/04/30 18:12 linux-5.15.y b925f60c6ee7 3ce4924c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in netdev_queue_update_kobjects
* Struck through repros no longer work on HEAD.