PT-2024-4115 · Linux+10 · Linux Kernel+10
Xingwei Lee
+1
·
Published
2024-03-26
·
Updated
2025-09-29
·
CVE-2024-26934
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to a deadlock in the
usb deauthorize interface() function, which can occur when another process owns the lock and tries to remove the interface. This happens because the interface authorized store() function acquires a device lock on an ancestor device, calling usb deauthorize interface(), which locks the interface's parent USB device. The deadlock occurs when device del() waits for all ongoing sysfs attribute callbacks to complete, but usb deauthorize interface() cannot complete until the device lock is released, and the lock won't be released until the removal has finished. The sysfs break active protection() function can be used to prevent this kind of deadlock by telling sysfs not to wait for the attribute callback.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu