CVE-2023-53662

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup} If the filename casefolding fails, we'll be leaking memory from the fscrypt_name struct, namely from the 'crypto_buf.name' member. Make sure we free it in the error path on both ext4_fname_setup_filename() and ext4_fname_prepare_lookup() functions.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 5% of CVEs (scores of 2026-10-28)

CWE

CWE-401

Published

2025-10-07

Modified

2026-10-28

Record from

the NVD, synced 2026-10-28

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c
• https://git.kernel.org/stable/c/36daf050be3f6f067631dc52054de2d3b7cc849f
• https://git.kernel.org/stable/c/7ca4b085f430f3774c3838b3da569ceccd6a0177
• https://git.kernel.org/stable/c/98fc9c2cc45cfcb56961a73de3ec69b474063fc0

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