CVE-2026-23411 (GCVE-0-2026-23411)

Vulnerability from cvelistv5 – Published: 2026-04-01 08:36 – Updated: 2026-05-11 22:06
VLAI
Title
apparmor: fix race between freeing data and fs accessing it
Summary
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix race between freeing data and fs accessing it AppArmor was putting the reference to i_private data on its end after removing the original entry from the file system. However the inode can aand does live beyond that point and it is possible that some of the fs call back functions will be invoked after the reference has been put, which results in a race between freeing the data and accessing it through the fs. While the rawdata/loaddata is the most likely candidate to fail the race, as it has the fewest references. If properly crafted it might be possible to trigger a race for the other types stored in i_private. Fix this by moving the put of i_private referenced data to the correct place which is during inode eviction.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c961ee5f21b202dea60b63eeef945730d92e46a6 , < a92c5e5086a87d082696245a8607666da3d80554 (git)
Affected: c961ee5f21b202dea60b63eeef945730d92e46a6 , < 667df93769c02ff581c77d2d8f162147e719c557 (git)
Affected: c961ee5f21b202dea60b63eeef945730d92e46a6 , < 3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc (git)
Affected: c961ee5f21b202dea60b63eeef945730d92e46a6 , < ae10787d955fb255d381e0d5589451dd72c614b1 (git)
Affected: c961ee5f21b202dea60b63eeef945730d92e46a6 , < eecce026399917f6efa532c56bc7a3e9dd6ee68b (git)
Affected: c961ee5f21b202dea60b63eeef945730d92e46a6 , < 13bc2772414d68e94e273dea013181a986948ddf (git)
Affected: c961ee5f21b202dea60b63eeef945730d92e46a6 , < 2a732ed26fbd048e7925d227af8cf9ea43fb5cc9 (git)
Affected: c961ee5f21b202dea60b63eeef945730d92e46a6 , < 8e135b8aee5a06c52a4347a5a6d51223c6f36ba3 (git)
Create a notification for this product.
Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.169 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.18 , ≤ 6.18.* (semver)
Unaffected: 6.19.8 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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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.