syzbot


WARNING in usb_stor_msg_common/usb_submit_urb

Status: upstream: reported syz repro on 2025/12/22 11:12
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+4812ca3fcc494a040a9d@syzkaller.appspotmail.com
First crash: 24d, last: 24d
Bug presence (1)
Date Name Commit Repro Result
2025/12/23 upstream (ToT) b927546677c8 syz [report] WARNING in usb_stor_msg_common/usb_submit_urb
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in usb_stor_msg_common/usb_submit_urb usb usb-storage -1 syz error 26 1h04m 382d 0/29 upstream: reported syz repro on 2024/12/29 09:01

Sample crash report:
------------[ cut here ]------------
URB ffff88814be0fa00 submitted while active
WARNING: CPU: 0 PID: 5927 at drivers/usb/core/urb.c:379 usb_submit_urb+0xf35/0x17d0 drivers/usb/core/urb.c:379
Modules linked in:
CPU: 0 PID: 5927 Comm: usb-storage Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:usb_submit_urb+0xf35/0x17d0 drivers/usb/core/urb.c:379
Code: 4a 8b 44 89 fa e8 ab 67 10 04 e9 28 fc ff ff e8 61 a6 35 fb c6 05 88 df e4 07 01 48 c7 c7 c0 dc 4a 8b 48 89 de e8 7b 22 00 fb <0f> 0b e9 45 f1 ff ff e8 3f a6 35 fb eb 11 e8 38 a6 35 fb bd 80 00
RSP: 0018:ffffc90003487490 EFLAGS: 00010246
RAX: b9ce0b03c204ba00 RBX: ffff88814be0fa00 RCX: ffff88807a849e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc90003487658 R08: ffffc90003487087 R09: 1ffff92000690e10
R10: dffffc0000000000 R11: fffff52000690e11 R12: dffffc0000000000
R13: ffff888025ed8ed0 R14: ffff88814be0fa08 R15: 0000000000000c00
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556e51a898e0 CR3: 0000000030074000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 usb_stor_msg_common+0x27d/0x4b0 drivers/usb/storage/transport.c:143
 usb_stor_bulk_transfer_buf+0x151/0x2a0 drivers/usb/storage/transport.c:395
 ene_send_scsi_cmd+0x10e/0x5f0 drivers/usb/storage/ene_ub6250.c:502
 ene_get_card_type drivers/usb/storage/ene_ub6250.c:1843 [inline]
 ene_init+0x14f/0x370 drivers/usb/storage/ene_ub6250.c:2197
 ene_transport+0x39ad/0x4650 drivers/usb/storage/ene_ub6250.c:2310
 usb_stor_invoke_transport+0xfc/0x1980 drivers/usb/storage/transport.c:611
 usb_stor_control_thread+0x447/0x8d0 drivers/usb/storage/usb.c:380
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/22 11:11 linux-6.6.y 5fa4793a2d2d d6526ea3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in usb_stor_msg_common/usb_submit_urb
* Struck through repros no longer work on HEAD.