CVE-2026-45948 (GCVE-0-2026-45948)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:18 – Updated: 2026-05-27 12:18
VLAI
Title
ext4: fix memory leak in ext4_ext_shift_extents()
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_ext_shift_extents() In ext4_ext_shift_extents(), if the extent is NULL in the while loop, the function returns immediately without releasing the path obtained via ext4_find_extent(), leading to a memory leak. Fix this by jumping to the out label to ensure the path is properly released.
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
Linux Linux Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 7e807cb8603b7664fa630a696cd891d9a03c248d (git)
Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < afc5e61e1a07b2b833bd72cbee36ecce9cd901e2 (git)
Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 1bce219ee5512cf179ba40cf114945a14a16e21f (git)
Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 4a79fde8db7eba7f1128d971ceba4e3c9ac84aec (git)
Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 2f4b1052246ca646bb17bfe0f53df2fdf9729b58 (git)
Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < 12615ab4bfb69678e5d961b28bb70040299e51b1 (git)
Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < bd7b52557e4a3ccd7595fdb3a585f1257de57935 (git)
Affected: a18ed359bdddcded4f97ff5e2f07793ff9336913 , < ca81109d4a8f192dc1cbad4a1ee25246363c2833 (git)
Create a notification for this product.
Linux Linux Affected: 3.15
Unaffected: 0 , < 3.15 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.14 , ≤ 6.18.* (semver)
Unaffected: 6.19.4 , ≤ 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.