🛡️ CVE-2023-40791
🟡 CVSS 6.3 — Medium ⚠️ Exploit Public NVD
6.3
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 6.3
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE N/A
Public Exploit ⚠️ Yes
Source NVD
Published 2023-10-16
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
h300s-firmware
h410s-firmware
h500s-firmware
h700s-firmware
linux-kernel 6.4.12

References

Exploit, Mailing List, Third Party Advisory https://lkml.org/lkml/2023/8/3/323
Exploit, Mailing List, Third Party Advisory https://lkml.org/lkml/2023/8/3/323

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