5.5

CVE-2024-27001

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:
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Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 3.9 < 4.19.313
LinuxLinux Kernel Version >= 4.20 < 5.4.275
LinuxLinux Kernel Version >= 5.5 < 5.10.216
LinuxLinux Kernel Version >= 5.11 < 5.15.157
LinuxLinux Kernel Version >= 5.16 < 6.1.88
LinuxLinux Kernel Version >= 6.2 < 6.6.29
LinuxLinux Kernel Version >= 6.7 < 6.8.8
LinuxLinux Kernel Version6.9 Updaterc1
LinuxLinux Kernel Version6.9 Updaterc2
LinuxLinux Kernel Version6.9 Updaterc3
LinuxLinux Kernel Version6.9 Updaterc4
DebianDebian Linux Version10.0
FedoraprojectFedora Version38
FedoraprojectFedora Version39
FedoraprojectFedora Version40
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.051
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.