CVE-2024-26584

Aliases:UBUNTU-CVE-2024-26584DEBIAN-CVE-2024-26584
Advisory lineage Upstream: 0 Downstream: 56
Modified
Published: 21 Feb 2024, 14:59
Last modified:05 Aug 2026, 11:26

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (cve.org)
EPSS Score
0.75% LOW
1% probability +0.71%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

21 Feb 2024, 14:59
Published
Vulnerability first disclosed
05 Aug 2026, 11:26
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
  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.75%• Percentile: 53%

Techniques & Countermeasures

  • CWE-755•Improper Handling of Exceptional Conditions

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

Affected Systems

  • debian•linux

    all | < 6.1.85-1 | < 6.7.7-1 | < 6.7.7-1

  • ubuntu•linux

    < 5.4.0-190.210 | < 5.15.0-112.122

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 5.4.0-1129.139 | < 5.15.0-1063.69

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1063.69~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1129.139~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-fips

    < 5.4.0-1129.139+fips1 | all | < 5.15.0-1063.69+fips1

  • ubuntu•linux-azure

    all | < 5.4.0-1134.141 | < 5.15.0-1066.75

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1065.74~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1134.141~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-6.5

    < 6.5.0-1022.23~22.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1067.76.1 | all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fde-6.8

    all

  • ubuntu•linux-azure-fips

    < 5.4.0-1134.141+fips1 | all | < 5.15.0-1065.74+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1089.96 | < 5.15.0-1044.46

  • ubuntu•linux-fips

    < 5.4.0-1103.113 | all | < 5.15.0-111.121+fips1

  • ubuntu•linux-gcp

    all | < 5.4.0-1133.142 | < 5.15.0-1062.70

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1062.70~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1133.142~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-6.2

    all

  • ubuntu•linux-gcp-6.5

    < 6.5.0-1022.24~22.04.1

  • ubuntu•linux-gcp-fips

    < 5.4.0-1133.142+fips1 | all | < 5.15.0-1062.70+fips1

  • ubuntu•linux-gke

    all | < 5.15.0-1060.66

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    all

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1096.100 | < 5.15.0-1046.53

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1046.53~20.04.1

Showing first 50 affected entries in server-rendered view.

References (32)