Assigner | Linux |
Reserved | 2024-02-19 |
Published | 2024-05-01 |
Updated | 2024-07-17 |
Description
In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix incomplete endpoint checking While vmk80xx does have endpoint checking implemented, some things can fall through the cracks. Depending on the hardware model, URBs can have either bulk or interrupt type, and current version of vmk80xx_find_usb_endpoints() function does not take that fully into account. While this warning does not seem to be too harmful, at the very least it will crash systems with 'panic_on_warn' set on them. Fix the issue found by Syzkaller [1] by somewhat simplifying the endpoint checking process with usb_find_common_endpoints() and ensuring that only expected endpoint types are present. This patch has not been tested on real hardware. [1] Syzkaller report: usb 1-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 0 PID: 781 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... Call Trace: <TASK> usb_start_wait_urb+0x113/0x520 drivers/usb/core/message.c:59 vmk80xx_reset_device drivers/comedi/drivers/vmk80xx.c:227 [inline] vmk80xx_auto_attach+0xa1c/0x1a40 drivers/comedi/drivers/vmk80xx.c:818 comedi_auto_config+0x238/0x380 drivers/comedi/drivers.c:1067 usb_probe_interface+0x5cd/0xb00 drivers/usb/core/driver.c:399 ... Similar issue also found by Syzkaller:
Product status
49253d542cc0 before 3a63ae0348d9
49253d542cc0 before a3b8ae7e9297
49253d542cc0 before f15370e31597
49253d542cc0 before b0b268eeb087
49253d542cc0 before ac882d6b21bf
49253d542cc0 before 59f33af97961
49253d542cc0 before 6ec3514a7d35
49253d542cc0 before d1718530e3f6
3.9
Any version before 3.9
4.19.313
5.4.275
5.10.216
5.15.157
6.1.88
6.6.29
6.8.8
6.9
References
https://git.kernel.org/stable/c/3a63ae0348d990e137cca04eced5b08379969ea9
https://git.kernel.org/stable/c/a3b8ae7e9297dd453f2977b011c5bc75eb20e71b
https://git.kernel.org/stable/c/f15370e315976198f338b41611f37ce82af6cf54
https://git.kernel.org/stable/c/b0b268eeb087e324ef3ea71f8e6cabd07630517f
https://git.kernel.org/stable/c/ac882d6b21bffecb57bcc4486701239eef5aa67b
https://git.kernel.org/stable/c/59f33af9796160f851641d960bd93937f282c696
https://git.kernel.org/stable/c/6ec3514a7d35ad9cfab600187612c29f669069d2
https://git.kernel.org/stable/c/d1718530e3f640b7d5f0050e725216eab57a85d8
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html