CVE-2023-53422
kernel: wifi: iwlwifi: fw: fix memory leak in debugfs
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 18, 2025
Updated · July 22, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: fw: fix memory leak in debugfs
Fix a memory leak that occurs when reading the fw_info file all the way, since we return NULL indicating no more data, but don't free the status tracking object.
Statement
A memory leak in iwlwifi’s debugfs fw_info reader caused the per-read iterator state to never be freed at end-of-file. The fix frees the state object when the iterator returns NULL. Impact is limited to privileged local users reading debugfs.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime