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.

Score

CVSS 3.1 5.5 Medium

Status

Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2024-08-26

Last modified

2026-05-11

Weaknesses

CWE-787

Affected products

• Linux Kernel (Linux)

References

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