Linux Kernel Memory Management Flaw in Scatterlist Module
CVE-2023-40791

9.1CRITICAL

Key Information:

Vendor

Linux
Status
Linux Kernel
Vendor
CVE Published:
16 October 2023

What is CVE-2023-40791?

A memory management vulnerability in the 'extract_user_to_sg' function within the Linux kernel's 'lib/scatterlist.c' may lead to resources not being properly released under certain conditions. This issue manifests as a warning during attempts to access pinning pages, potentially impacting system stability and performance.

References

https://lkml.org/lkml/2023/8/3/323
https://lore.kernel.org/linux-crypto/20571.1690369076%40w...
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.