CVE-2026-45948

high

Description

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.

References

https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833

https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935

https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2

https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248d

https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aec

https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58

https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21f

https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1

Details

Source: Mitre, NVD

Published: 2026-05-27

Updated: 2026-05-27

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 8.4

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00024