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CVE-2022-49566

crypto: qat - fix memory leak in RSA

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 02:23 AM UTC
Updated: June 17, 2026 at 05:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix memory leak in RSA When an RSA key represented in form 2 (as defined in PKCS #1 V2.1) is used, some components of the private key persist even after the TFM is released. Replace the explicit calls to free the buffers in qat_rsa_exit_tfm() with a call to qat_rsa_clear_ctx() which frees all buffers referenced in the TFM context.

Affected

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

Linux Kernel· Linux
95%
4.8 ≤ v < 5.15.584.8 ≤ v < 5.18.154.8 ≤ v < 5.195.16 ≤ v < 5.18.154.8879f77e9071f029e1c9bd5a75814ecf51370f846
Vendor states this is fixed in 0f967fdc09955221a1951a279481b0bf4d359941 (fixed)
Vendor states this is fixed in 80a52e1ee7757b742f96bfb0d58f0c14eb6583d0 (fixed)
Vendor states this is fixed in a843925e0287eebb4aa808666bf22c664dfe4c53 (fixed)
Vendor states this is fixed in 4.8 (unaffected)
Vendor states this is fixed in 5.15.58 (unaffected)
Vendor states this is fixed in 5.18.15 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0f967fdc09955221a1951a279481b0bf4d359941
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/80a52e1ee7757b742f96bfb0d58f0c14eb6583d0
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a843925e0287eebb4aa808666bf22c664dfe4c53

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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