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CVE-2023-40791

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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

Related Resources (9)

https://nvd.nist.gov/vuln/detail/CVE-2023-40791
https://lore.kernel.org/linux-crypto/20571.1690369076%40warthog.procyon.org.uk/
https://lore.kernel.org/linux-crypto/20571.1690369076@warthog.procyon.org.uk/
https://access.redhat.com/security/cve/CVE-2023-40791
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
https://lkml.org/lkml/2023/8/3/323
https://security.netapp.com/advisory/ntap-20231110-0009/
https://www.mend.io/vulnerability-database/CVE-2023-40791

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Top Fix

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Upgrade Version

Upgrade to version linux-libc-headers - 5.14;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68

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CVSS v3.1

Base Score:
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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