CVE-2024-44938

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix shift-out-of-bounds in dbDiscardAG When searching for the next smaller log2 block, BLKSTOL2() returned 0, causing shift exponent -1 to be negative. This patch fixes the issue by exiting the loop directly when negative shift is found.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/234e6ea0855cdb5673d54ecaf7dc5c78f3e84630	Patch
https://git.kernel.org/stable/c/4de2c04c3acd5b84f50b0d2f8f09e9b2f42374b9
https://git.kernel.org/stable/c/7063b80268e2593e58bee8a8d709c2f3ff93e2f2	Patch
https://git.kernel.org/stable/c/bb7c605a754823b86dd74f6537ccb9d38a9dec5a
https://git.kernel.org/stable/c/bd04a149e3a29e7f71b7956ed41dba34e42d539e	Issue Tracking
https://git.kernel.org/stable/c/f650148b43949ca9e37e820804bb6026fff404f3	Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

03 Nov 2025, 23:15

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html -

03 Nov 2025, 20:16

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html -

02 May 2025, 07:15

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/4de2c04c3acd5b84f50b0d2f8f09e9b2f42374b9 - () https://git.kernel.org/stable/c/bb7c605a754823b86dd74f6537ccb9d38a9dec5a -

Information

Published : 2024-08-26 12:15

Updated : 2025-11-03 23:15

NVD link : CVE-2024-44938

Mitre link : CVE-2024-44938

CVE.ORG link : CVE-2024-44938

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-787

Out-of-bounds Write

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