Hello,
syzbot found the following issue on:
HEAD commit: 848acc8ffe1b Merge tag 'fsverity-for-linus' of git://git.k..
git tree: upstream
console output:
https://syzkaller.appspot.com/x/log.txt?x=15b613b9580000
kernel config:
https://syzkaller.appspot.com/x/.config?x=145fa60d73086782
dashboard link:
https://syzkaller.appspot.com/bug?extid=89f5f8143d8e62af2b61
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
syz repro:
https://syzkaller.appspot.com/x/repro.syz?x=17379bb9580000
C reproducer:
https://syzkaller.appspot.com/x/repro.c?x=1073be32580000
Downloadable assets:
disk image (non-bootable):
https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-848acc8f.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/6fb497cc0c8d/vmlinux-848acc8f.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/663ccee34982/bzImage-848acc8f.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+89f5f8...@syzkaller.appspotmail.com
usb 5-1: Product: syz
usb 5-1: Manufacturer: syz
usb 5-1: SerialNumber: syz
------------[ cut here ]------------
URB ffff88803435b300 submitted while active
WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x1689/0x19b0 drivers/usb/core/urb.c:379, CPU#1: kworker/1:0/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0x168c/0x19b0 drivers/usb/core/urb.c:379
Code: 00 48 8b 04 24 48 8b 90 b0 00 00 00 e9 70 ff ff ff bb ed ff ff ff e9 ac f1 ff ff e8 9e ed 89 fa 48 8d 3d a7 6d af 09 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 8e f1 ff ff c7 44 24 30 00 00 00
RSP: 0018:ffffc90000686e38 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803435b300 RCX: 1ffff1100686b7d1
RDX: ffff88801f6c2540 RSI: ffff88803435b300 RDI: ffffffff912fe4f0
RBP: ffff8880350c0c68 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880350c0c38
R13: ffff88802ef4fe00 R14: ffff88803823bcc0 R15: ffff8880350c0c60
FS: 0000000000000000(0000) GS:ffff8880d5ed8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33463fff CR3: 000000003f4ce000 CR4: 0000000000352ef0
Call Trace:
<TASK>
port100_send_frame_async drivers/nfc/port100.c:783 [inline]
port100_send_cmd_async+0x7f7/0xc60 drivers/nfc/port100.c:879
port100_send_cmd_sync drivers/nfc/port100.c:919 [inline]
port100_set_command_type drivers/nfc/port100.c:990 [inline]
port100_probe+0xb4c/0x1190 drivers/nfc/port100.c:1555
usb_probe_interface+0x303/0x8f0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:628 [inline]
really_probe+0x241/0xa60 drivers/base/dd.c:706
__driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
__device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
__device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
bus_probe_device+0x64/0x160 drivers/base/bus.c:620
device_add+0x121d/0x1970 drivers/base/core.c:3772
usb_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:291
call_driver_probe drivers/base/dd.c:628 [inline]
really_probe+0x241/0xa60 drivers/base/dd.c:706
__driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
__device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
__device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
bus_probe_device+0x64/0x160 drivers/base/bus.c:620
device_add+0x121d/0x1970 drivers/base/core.c:3772
usb_new_device.cold+0x685/0x115c drivers/usb/core/hub.c:2695
hub_port_connect drivers/usb/core/hub.c:5567 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
port_event drivers/usb/core/hub.c:5871 [inline]
hub_event+0x30a3/0x4a60 drivers/usb/core/hub.c:5953
process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
process_scheduled_works kernel/workqueue.c:3405 [inline]
worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
----------------
Code disassembly (best guess):
0: 00 48 8b add %cl,-0x75(%rax)
3: 04 24 add $0x24,%al
5: 48 8b 90 b0 00 00 00 mov 0xb0(%rax),%rdx
c: e9 70 ff ff ff jmp 0xffffff81
11: bb ed ff ff ff mov $0xffffffed,%ebx
16: e9 ac f1 ff ff jmp 0xfffff1c7
1b: e8 9e ed 89 fa call 0xfa89edbe
20: 48 8d 3d a7 6d af 09 lea 0x9af6da7(%rip),%rdi # 0x9af6dce
27: 48 89 de mov %rbx,%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: bb f0 ff ff ff mov $0xfffffff0,%ebx
34: e9 8e f1 ff ff jmp 0xfffff1c7
39: c7 .byte 0xc7
3a: 44 24 30 rex.R and $0x30,%al
3d: 00 00 add %al,(%rax)
---
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