CVE-2023-40791

medium

Description

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.

References

https://security.netapp.com/advisory/ntap-20231110-0009/

https://lore.kernel.org/linux-crypto/20571.1690369076%40warthog.procyon.org.uk/

https://lkml.org/lkml/2023/8/3/323

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f443fd5af5dbd531f880d3645d5dd36976cf087f

https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.12

Details

Source: Mitre, NVD

Published: 2023-10-16

Updated: 2024-01-04

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 6.3

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H