CVE-2024-26584

Advisory lineage Upstream: 0 Downstream: 56
Modified
Published: 21 Feb 2024, 14:59
Last modified:11 May 2026, 19:59

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.03% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

21 Feb 2024, 14:59
Published
Vulnerability first disclosed
11 May 2026, 19:59
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.03%• Percentile: 10%

Techniques & Countermeasures

  • CWE-755•Improper Handling of Exceptional Conditions

    The product does not handle or incorrectly handles an exceptional condition.

Affected Systems

  • linux•linux

    ≥ a54667f6728c2714a400f3c884727da74b6d1717, < 3ade391adc584f17b5570fd205de3ad029090368 | ≥ a54667f6728c2714a400f3c884727da74b6d1717, < cd1bbca03f3c1d845ce274c0d0a66de8e5929f72 | ≥ a54667f6728c2714a400f3c884727da74b6d1717, < 13eca403876bbea3716e82cdfe6f1e6febb38754 | ≥ a54667f6728c2714a400f3c884727da74b6d1717, < ab6397f072e5097f267abf5cb08a8004e6b17694 | ≥ a54667f6728c2714a400f3c884727da74b6d1717, < 8590541473188741055d27b955db0777569438e3 | 4.16

  • linux•linux_kernel

    ≥ 4.16.0, < 6.1.84 | ≥ 6.2.0, < 6.6.18 | ≥ 6.7.0, < 6.7.6

References (6)