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CVE-2021-47052

crypto: sa2ul - Fix memory leak of rxd

MEDIUM
5.5
CVSS Score
Published: February 28, 2024 at 08:13 AM UTC
Updated: June 17, 2026 at 04:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: sa2ul - Fix memory leak of rxd There are two error return paths that are not freeing rxd and causing memory leaks. Fix these. Addresses-Coverity: ("Resource leak")

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.10 ≤ v < 5.10.375.10 ≤ v < 5.11.215.10 ≤ v < 5.12.45.10 ≤ v < 5.135.11 ≤ v < 5.11.215.12 ≤ v < 5.12.40c9211f60db2dead16856f81a3e6ab86b31f2755.10
Vendor states this is fixed in 0e596b3734649041ed77edc86a23c0442bbe062b (fixed)
Vendor states this is fixed in 854b7737199848a91f6adfa0a03cf6f0c46c86e8 (fixed)
Vendor states this is fixed in b7bd0657c2036add71981d88a7fae50188150b6e (fixed)
Vendor states this is fixed in dfd6443bf49ac17adf882ca46c40c506a0284bd6 (fixed)
Vendor states this is fixed in 5.10 (unaffected)
Vendor states this is fixed in 5.10.37 (unaffected)
Vendor states this is fixed in 5.11.21 (unaffected)
Vendor states this is fixed in 5.12.4 (unaffected)
Vendor states this is fixed in 5.13 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0e596b3734649041ed77edc86a23c0442bbe062b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/854b7737199848a91f6adfa0a03cf6f0c46c86e8
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b7bd0657c2036add71981d88a7fae50188150b6e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/dfd6443bf49ac17adf882ca46c40c506a0284bd6

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-401

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