CVE-2024-26584

Medium

In the Linux kernel, the following vulnerability has been resolved: net: tls: handle backlogging of crypto requests Since we're setting the CRYPTO_TFM_REQ_MAY_BACKLOG flag on our requests to the crypto API, crypto_aead_{encrypt,decrypt} can return -EBUSY instead of -EINPROGRESS in valid situations. For example, when the cryptd queue for AESNI is full (easy to trigger with an artificially low cryptd.cryptd_max_cpu_qlen), requests will be enqueued to the backlog but still processed. In that case, the async callback will also be called twice: first with err == -EINPROGRESS, which it seems we can just ignore, then with err == 0. Compared to Sabrina's original patch this version uses the new tls_*crypt_async_wait() helpers and converts the EBUSY to EINPROGRESS to avoid having to modify all the error handling paths. The handling is identical.

Package Linux Kernel
Published 2024-02-21
Last modified 2025-11-04
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-755

CVE-2024-26584 is classified as CWE-755

See CWE-755 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 4.16 and later are affected. Fixed in 5.15.160, 6.1.84, 6.6.18, 6.7.6, 6.8 and their respective stable series.

Affected from
≥ 4.16
Fixed in
✓ 5.15.160 5.15.x ✓ 6.1.84 6.1.x ✓ 6.6.18 6.6.x ✓ 6.7.6 6.7.x ✓ 6.8

References

6 total
Showing 5 of 6 references View all on NVD

Frequently asked questions

  • What is CVE-2024-26584?

    CVE-2024-26584 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.16 onward and has been patched in 5.15.160, 6.1.84, 6.6.18 and others. CVE-2024-26584 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-26584?

    CVE-2024-26584 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2024-26584?

    Yes. CVE-2024-26584 has been patched. Fixed versions include 5.15.160, 6.1.84, 6.6.18 and others. If you are running Linux kernel 4.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-26584 actively exploited?

    No. CVE-2024-26584 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Back to
All CVEs
View on
NVD / NIST