CVE-2021-47654

MEDIUM

Linux Kernel < 5.15.33 - Use-After-Free in Landlock Path List Handling

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: samples/landlock: Fix path_list memory leak Clang static analysis reports this error sandboxer.c:134:8: warning: Potential leak of memory pointed to by 'path_list' ret = 0; ^ path_list is allocated in parse_path() but never freed.

References (4)

Core 4

Core References

Patch

https://git.kernel.org/stable/c/20fbf100f84b9aeb9c91421abe1927bc152bc32b

Patch

https://git.kernel.org/stable/c/49b0d8bf05809df5f87e5c03e26d74bdfdab4571

Patch

https://git.kernel.org/stable/c/017196730299ccd6eed24bbfabed8af4ffd81530

Patch

https://git.kernel.org/stable/c/66b513b7c64a7290c1fbb88e657f7cece992e131

Scores

CVSS v3 5.5

EPSS 0.0024

EPSS Percentile 14.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-401

Status published

Products (11)

Linux/Linux < 5.13

Linux/Linux 5.13

Linux/Linux 5.15.33 - 5.15.*

Linux/Linux 5.16.19 - 5.16.*

Linux/Linux 5.17.2 - 5.17.*

Linux/Linux 5.18

Linux/Linux ba84b0bf5a164f0f523656c1e37568c30f3f3303 - 017196730299ccd6eed24bbfabed8af4ffd81530

Linux/Linux ba84b0bf5a164f0f523656c1e37568c30f3f3303 - 20fbf100f84b9aeb9c91421abe1927bc152bc32b

Linux/Linux ba84b0bf5a164f0f523656c1e37568c30f3f3303 - 49b0d8bf05809df5f87e5c03e26d74bdfdab4571

Linux/Linux ba84b0bf5a164f0f523656c1e37568c30f3f3303 - 66b513b7c64a7290c1fbb88e657f7cece992e131

... and 1 more

Published Feb 26, 2025

Tracked Since Feb 18, 2026