Vulnerability-Lookup

GHSA-RJJW-VJJ8-Q96X

Vulnerability from github – Published: 2024-02-21 15:30 – Updated: 2024-06-03 18:55

Details

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.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26584"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-755"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-21T15:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tls: handle backlogging of crypto requests\n\nSince we\u0027re setting the CRYPTO_TFM_REQ_MAY_BACKLOG flag on our\nrequests to the crypto API, crypto_aead_{encrypt,decrypt} can return\n -EBUSY instead of -EINPROGRESS in valid situations. For example, when\nthe cryptd queue for AESNI is full (easy to trigger with an\nartificially low cryptd.cryptd_max_cpu_qlen), requests will be enqueued\nto the backlog but still processed. In that case, the async callback\nwill also be called twice: first with err == -EINPROGRESS, which it\nseems we can just ignore, then with err == 0.\n\nCompared to Sabrina\u0027s original patch this version uses the new\ntls_*crypt_async_wait() helpers and converts the EBUSY to\nEINPROGRESS to avoid having to modify all the error handling\npaths. The handling is identical.",
  "id": "GHSA-rjjw-vjj8-q96x",
  "modified": "2024-06-03T18:55:49Z",
  "published": "2024-02-21T15:30:45Z",
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CVE-2024-26584 (GCVE-0-2024-26584)

Vulnerability from cvelistv5 – Published: 2024-02-21 14:59 – Updated: 2026-05-11 19:59

Title

net: tls: handle backlogging of crypto requests

Summary

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.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/3ade391adc584f17b…
https://git.kernel.org/stable/c/cd1bbca03f3c1d845…
https://git.kernel.org/stable/c/13eca403876bbea37…
https://git.kernel.org/stable/c/ab6397f072e5097f2…
https://git.kernel.org/stable/c/85905414731887410…
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a54667f6728c2714a400f3c884727da74b6d1717 , < 3ade391adc584f17b5570fd205de3ad029090368 (git) Affected: a54667f6728c2714a400f3c884727da74b6d1717 , < cd1bbca03f3c1d845ce274c0d0a66de8e5929f72 (git) Affected: a54667f6728c2714a400f3c884727da74b6d1717 , < 13eca403876bbea3716e82cdfe6f1e6febb38754 (git) Affected: a54667f6728c2714a400f3c884727da74b6d1717 , < ab6397f072e5097f267abf5cb08a8004e6b17694 (git) Affected: a54667f6728c2714a400f3c884727da74b6d1717 , < 8590541473188741055d27b955db0777569438e3 (git)
Linux	Linux	Affected: 4.16 Unaffected: 0 , < 4.16 (semver) Unaffected: 5.15.160 , ≤ 5.15.* (semver) Unaffected: 6.1.84 , ≤ 6.1.* (semver) Unaffected: 6.6.18 , ≤ 6.6.* (semver) Unaffected: 6.7.6 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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GHSA-RJJW-VJJ8-Q96X

CVE-2024-26584 (GCVE-0-2024-26584)

Tags

Sightings

Nomenclature