syzbot


WARNING in dlfb_submit_urb/usb_submit_urb (2)

Status: fixed on 2023/07/01 16:05
Subsystems: fbdev usb
[Documentation on labels]
Reported-by: syzbot+0e22d63dcebb802b9bc8@syzkaller.appspotmail.com
Fix commit: ed9de4ed3987 fbdev: udlfb: Fix endpoint check
First crash: 345d, last: 345d
Discussions (2)
Title Replies (including bot) Last reply
[PATCH] video: udlfb: Fix endpoint check 2 (2) 2023/05/19 19:51
[syzbot] [fbdev?] [usb?] WARNING in dlfb_submit_urb/usb_submit_urb (2) 9 (12) 2023/05/19 18:40
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in dlfb_submit_urb/usb_submit_urb usb fbdev C done 481 497d 1758d 22/26 fixed on 2023/02/24 13:50
Last patch testing requests (5)
Created Duration User Patch Repo Result
2023/05/18 20:35 20m stern@rowland.harvard.edu patch https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git a4422ff22142 OK log
2023/05/18 17:14 18m deller@gmx.de https://github.com/hdeller/linux.git dlfb-test report log
2023/05/18 10:20 0m deller@gmx.de patch https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error OK
2023/05/18 09:05 0m deller@gmx.de patch https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error OK
2023/05/18 07:34 0m deller@gmx.de patch https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing error OK

Sample crash report:
usb 1-1: Read EDID byte 0 failed: -71
usb 1-1: Unable to get valid EDID from device/display
------------[ cut here ]------------
usb 1-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 0 PID: 9 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504
Modules linked in:
CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.4.0-rc1-syzkaller-00016-ga4422ff22142 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504
Code: 7c 24 18 e8 7c dc 5a fd 48 8b 7c 24 18 e8 42 ca 0b ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 60 34 cc 86 e8 0a fa 25 fd <0f> 0b e9 58 f8 ff ff e8 4e dc 5a fd 48 81 c5 b8 05 00 00 e9 84 f7
RSP: 0018:ffffc9000009ed48 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888103650000 RSI: ffffffff81163677 RDI: 0000000000000001
RBP: ffff88810cb32940 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000003
R13: ffff88810cf426b8 R14: 0000000000000003 R15: ffff888104272100
FS:  0000000000000000(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562147be3b70 CR3: 0000000110380000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dlfb_submit_urb+0x92/0x180 drivers/video/fbdev/udlfb.c:1980
 dlfb_set_video_mode+0x21f0/0x2950 drivers/video/fbdev/udlfb.c:315
 dlfb_ops_set_par+0x2a7/0x8d0 drivers/video/fbdev/udlfb.c:1111
 dlfb_usb_probe+0x149a/0x2710 drivers/video/fbdev/udlfb.c:1743
 usb_probe_interface+0x30f/0x960 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x240/0xca0 drivers/base/dd.c:658
 __driver_probe_device+0x1df/0x4b0 drivers/base/dd.c:800
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830
 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:958
 bus_for_each_drv+0x149/0x1d0 drivers/base/bus.c:457
 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1030
 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532
 device_add+0x112d/0x1a40 drivers/base/core.c:3625
 usb_set_configuration+0x1196/0x1bc0 drivers/usb/core/message.c:2211
 usb_generic_driver_probe+0xcf/0x130 drivers/usb/core/generic.c:238
 usb_probe_device+0xd8/0x2c0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x240/0xca0 drivers/base/dd.c:658
 __driver_probe_device+0x1df/0x4b0 drivers/base/dd.c:800
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830
 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:958
 bus_for_each_drv+0x149/0x1d0 drivers/base/bus.c:457
 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1030
 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532
 device_add+0x112d/0x1a40 drivers/base/core.c:3625
 usb_new_device+0xcb2/0x19d0 drivers/usb/core/hub.c:2575
 hub_port_connect drivers/usb/core/hub.c:5407 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5551 [inline]
 port_event drivers/usb/core/hub.c:5711 [inline]
 hub_event+0x2e3d/0x4ed0 drivers/usb/core/hub.c:5793
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/05/14 04:35 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing a4422ff22142 2b9ba477 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in dlfb_submit_urb/usb_submit_urb
2023/05/14 04:05 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing a4422ff22142 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in dlfb_submit_urb/usb_submit_urb
* Struck through repros no longer work on HEAD.