CVE-2024-42314

2024-08-1700:00:00

ubuntu.com

linux kernel

btrfs

use-after-free

vulnerability

resolved

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

7.2

Confidence

Low

JSON

In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix extent map use-after-free when adding pages to compressed bio
At add_ra_bio_pages() we are accessing the extent map to calculate
‘add_size’ after we dropped our reference on the extent map, resulting
in a use-after-free. Fix this by computing ‘add_size’ before dropping our
extent map reference.

OSVersionArchitecturePackageVersionFilename
ubuntu24.04noarchlinux< anyUNKNOWN
ubuntu24.04noarchlinux-aws< anyUNKNOWN
ubuntu24.04noarchlinux-azure< anyUNKNOWN
ubuntu24.04noarchlinux-gcp< anyUNKNOWN
ubuntu24.04noarchlinux-gke< anyUNKNOWN
ubuntu22.04noarchlinux-hwe-6.8< anyUNKNOWN
ubuntu24.04noarchlinux-ibm< anyUNKNOWN
ubuntu24.04noarchlinux-intel< anyUNKNOWN
ubuntu24.04noarchlinux-lowlatency< anyUNKNOWN
ubuntu22.04noarchlinux-lowlatency-hwe-6.8< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	24.04	noarch	linux	< any	UNKNOWN
ubuntu	24.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	24.04	noarch	linux-azure	< any	UNKNOWN
ubuntu	24.04	noarch	linux-gcp	< any	UNKNOWN
ubuntu	24.04	noarch	linux-gke	< any	UNKNOWN
ubuntu	22.04	noarch	linux-hwe-6.8	< any	UNKNOWN
ubuntu	24.04	noarch	linux-ibm	< any	UNKNOWN
ubuntu	24.04	noarch	linux-intel	< any	UNKNOWN
ubuntu	24.04	noarch	linux-lowlatency	< any	UNKNOWN
ubuntu	22.04	noarch	linux-lowlatency-hwe-6.8	< any	UNKNOWN