CVE-2023-40791

2023-10-1603:15:09

Debian Security Bug Tracker

security-tracker.debian.org

linux kernel

vulnerability

extract_user_to_sg

pages

warning

try_grab_page

6.3 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation, as demonstrated by a WARNING for try_grab_page.

OSVersionArchitecturePackageVersionFilename
Debian12alllinux< 6.1.76-1linux_6.1.76-1_all.deb
Debian11alllinux< 5.10.209-2linux_5.10.209-2_all.deb
Debian10alllinux< 4.19.249-2linux_4.19.249-2_all.deb
Debian999alllinux< 6.4.13-1linux_6.4.13-1_all.deb
Debian13alllinux< 6.4.13-1linux_6.4.13-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	linux	< 6.1.76-1	linux_6.1.76-1_all.deb
Debian	11	all	linux	< 5.10.209-2	linux_5.10.209-2_all.deb
Debian	10	all	linux	< 4.19.249-2	linux_4.19.249-2_all.deb
Debian	999	all	linux	< 6.4.13-1	linux_6.4.13-1_all.deb
Debian	13	all	linux	< 6.4.13-1	linux_6.4.13-1_all.deb