syzbot


WARNING in plfxlc_mac_release

Status: upstream: reported C repro on 2025/01/13 19:49
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+7d4f142f6c288de8abfe@syzkaller.appspotmail.com
First crash: 22d, last: 21d
Bug presence (1)
Date Name Commit Repro Result
2025/01/14 upstream (ToT) c45323b7560e C [report] WARNING in plfxlc_mac_release
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in plfxlc_mac_release usb wireless C done 2470 5h29m 190d 0/28 upstream: reported C repro on 2024/07/29 18:50

Sample crash report:
usb 1-1: SerialNumber: syz
plfxlc 1-1:253.132: Firmware Version: 0
plfxlc 1-1:253.132: Unit type is station
plfxlc 1-1:253.132: vendor command failed (-71)
plfxlc 1-1:253.132: FPGA download failed (-22)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 127 at drivers/net/wireless/purelifi/plfxlc/mac.c:106 plfxlc_mac_release+0x7d/0xa0
Modules linked in:
CPU: 0 PID: 127 Comm: kworker/0:2 Not tainted 6.1.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:plfxlc_mac_release+0x7d/0xa0 drivers/net/wireless/purelifi/plfxlc/mac.c:106
Code: ff ff e8 f6 dc 6a 04 89 c3 31 ff 89 c6 e8 4b d4 42 fb 85 db 74 0f e8 e2 d0 42 fb eb 05 e8 db d0 42 fb 5b 5d c3 e8 d3 d0 42 fb <0f> 0b eb f4 48 c7 c1 74 40 9b 8e 80 e1 07 80 c1 03 38 c1 7c a1 48
RSP: 0018:ffffc90002da6988 EFLAGS: 00010293
RAX: ffffffff8647cb2d RBX: 0000000000000000 RCX: ffff88801a7bbb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8647cb15 R09: ffffed100607acb3
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801c6d0000
R13: 00000000ffffffea R14: ffff8880303d0e80 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055af1fe21a80 CR3: 000000002d02c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 probe+0x941/0xbd0 drivers/net/wireless/purelifi/plfxlc/usb.c:694
 usb_probe_interface+0x5c0/0xaf0 drivers/usb/core/driver.c:396
 really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
 __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
 driver_probe_device+0x50/0x420 drivers/base/dd.c:815
 __device_attach_driver+0x2cf/0x510 drivers/base/dd.c:943
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:429
 __device_attach+0x359/0x570 drivers/base/dd.c:1015
 bus_probe_device+0xba/0x1e0 drivers/base/bus.c:489
 device_add+0xb48/0xfd0 drivers/base/core.c:3696
 usb_set_configuration+0x19dd/0x2020 drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0x84/0x140 drivers/usb/core/generic.c:238
 usb_probe_device+0x130/0x260 drivers/usb/core/driver.c:293
 really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
 __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:785
 driver_probe_device+0x50/0x420 drivers/base/dd.c:815
 __device_attach_driver+0x2cf/0x510 drivers/base/dd.c:943
 bus_for_each_drv+0x183/0x200 drivers/base/bus.c:429
 __device_attach+0x359/0x570 drivers/base/dd.c:1015
 bus_probe_device+0xba/0x1e0 drivers/base/bus.c:489
 device_add+0xb48/0xfd0 drivers/base/core.c:3696
 usb_new_device+0xbdd/0x18f0 drivers/usb/core/hub.c:2620
 hub_port_connect drivers/usb/core/hub.c:5477 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5617 [inline]
 port_event drivers/usb/core/hub.c:5773 [inline]
 hub_event+0x2efe/0x5730 drivers/usb/core/hub.c:5855
 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/14 13:10 linux-6.1.y c63962be84ef b1f1cd88 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in plfxlc_mac_release
2025/01/13 19:48 linux-6.1.y c63962be84ef 249ceea9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in plfxlc_mac_release
* Struck through repros no longer work on HEAD.