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CVE-2023-40791

Good to know:

Date: October 15, 2023

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.

Language: C

Severity Score

6.3

Related Resources (9)

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-40791

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

Url: https://lore.kernel.org/linux-crypto/20571.1690369076@warthog.procyon.org.uk/

Url: https://access.redhat.com/security/cve/CVE-2023-40791

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

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

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

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

Url: https://www.mend.io/vulnerability-database/CVE-2023-40791

Severity Score

6.3

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Top Fix

Upgrade Version

Upgrade to version v6.4.12

CVSS v3.1

Base Score:	6.3
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	HIGH
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	HIGH
Availability (A):	HIGH

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