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CVE-2022-49938 (GCVE-0-2022-49938)

Vulnerability from cvelistv5 – Published: 2025-06-18 10:54 – Updated: 2026-05-23 15:23
VLAI
Title
cifs: fix small mempool leak in SMB2_negotiate()
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2_negotiate() In some cases of failure (dialect mismatches) in SMB2_negotiate(), after the request is sent, the checks would return -EIO when they should be rather setting rc = -EIO and jumping to neg_exit to free the response buffer from mempool.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 9764c02fcbad40001fd3f63558d918e4d519bb75 , < 9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0 (git)
Affected: 9764c02fcbad40001fd3f63558d918e4d519bb75 , < 38a6b469bf22f153282fbe7d702a24e9eb43f50e (git)
Affected: 9764c02fcbad40001fd3f63558d918e4d519bb75 , < 27893dfc1285f80f80f46b3b8c95f5d15d2e66d0 (git)
Affected: 1ae6f05d4204d3a128bb9ba2c42e2a6c4ac687f1 (git)
Affected: 4.13.5 , < 4.14 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 4.14
Unaffected: 0 , < 4.14 (semver)
Unaffected: 5.15.66 , ≤ 5.15.* (semver)
Unaffected: 5.19.8 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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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