github - ghsa-f93f-4q67-pcmr

GHSA-F93F-4Q67-PCMR

Vulnerability from github – Published: 2024-02-27 12:31 – Updated: 2024-04-10 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

fs/mount_setattr: always cleanup mount_kattr

Make sure that finish_mount_kattr() is called after mount_kattr was succesfully built in both the success and failure case to prevent leaking any references we took when we built it. We returned early if path lookup failed thereby risking to leak an additional reference we took when building mount_kattr when an idmapped mount was requested.

Severity ?

5.5 (Medium)


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

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  "aliases": [
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    "github_reviewed": false,
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  "id": "GHSA-f93f-4q67-pcmr",
  "modified": "2024-04-10T15:30:32Z",
  "published": "2024-02-27T12:31:09Z",
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    },
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CVE-2021-46923 (GCVE-0-2021-46923)

Vulnerability from cvelistv5 – Published: 2024-02-27 09:43 – Updated: 2025-05-04 07:00

Summary

In the Linux kernel, the following vulnerability has been resolved: fs/mount_setattr: always cleanup mount_kattr Make sure that finish_mount_kattr() is called after mount_kattr was succesfully built in both the success and failure case to prevent leaking any references we took when we built it. We returned early if path lookup failed thereby risking to leak an additional reference we took when building mount_kattr when an idmapped mount was requested.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/47b5d0a7532d39e42…
	https://git.kernel.org/stable/c/012e332286e2bb9f6…

Impacted products

Vendor

Product

Version

Linux

Affected: 9caccd41541a6f7d6279928d9f971f6642c361af , < 47b5d0a7532d39e42a938f81e3904268145c341d (git)
Affected: 9caccd41541a6f7d6279928d9f971f6642c361af , < 012e332286e2bb9f6ac77d195f17e74b2963d663 (git)

Linux

Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.13 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)

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JSON

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-F93F-4Q67-PCMR

CVE-2021-46923 (GCVE-0-2021-46923)

Tags

Sightings

Nomenclature