CVE-2024-26934

2024-05-0100:00:00

ubuntu.com

cve-2024-26934

usb vulnerability

linux kernel

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.6

Confidence

High

EPSS

Percentile

5.1%

JSON

In the Linux kernel, the following vulnerability has been resolved: USB:
core: Fix deadlock in usb_deauthorize_interface() Among the attribute file
callback routines in drivers/usb/core/sysfs.c, the
interface_authorized_store() function is the only one which acquires a
device lock on an ancestor device: It calls usb_deauthorize_interface(),
which locks the interface’s parent USB device. The will lead to deadlock if
another process already owns that lock and tries to remove the interface,
whether through a configuration change or because the device has been
disconnected. As part of the removal procedure, device_del() waits for all
ongoing sysfs attribute callbacks to complete. But
usb_deauthorize_interface() can’t complete until the device lock has been
released, and the lock won’t be released until the removal has finished.
The mechanism provided by sysfs to prevent this kind of deadlock is to use
the sysfs_break_active_protection() function, which tells sysfs not to wait
for the attribute callback. Reported-and-tested by: Yue Sun
<[email protected]> Reported by: xingwei lee <[email protected]>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-227.239UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-189.209UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-116.126UNKNOWN
ubuntu24.04noarchlinux< 6.8.0-35.35UNKNOWN
ubuntu16.04noarchlinux< anyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1170.183UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1128.138UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1065.71UNKNOWN
ubuntu24.04noarchlinux-aws< 6.8.0-1009.9UNKNOWN
ubuntu14.04noarchlinux-aws< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-227.239	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-189.209	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-116.126	UNKNOWN
ubuntu	24.04	noarch	linux	< 6.8.0-35.35	UNKNOWN
ubuntu	16.04	noarch	linux	< any	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1170.183	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1128.138	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1065.71	UNKNOWN
ubuntu	24.04	noarch	linux-aws	< 6.8.0-1009.9	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< any	UNKNOWN