CVE-2026-45948
MEDIUM severity · CVSS 5.5 · CWE-401
5.5CVSS MEDIUM
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1Patch
- https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21fPatch
- https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58Patch
- https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aecPatch
- https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248dPatch
- https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2Patch
- https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935Patch
- https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833Patch