VYPR
← All advisories
Unrated severityNVD Advisory· Published Oct 1, 2025

scsi: qla4xxx: Add length check when parsing nlattrs

CVE-2023-53456

Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla4xxx: Add length check when parsing nlattrs

There are three places that qla4xxx parses nlattrs:

  • qla4xxx_set_chap_entry()
  • qla4xxx_iface_set_param()
  • qla4xxx_sysfs_ddb_set_param()

and each of them directly converts the nlattr to specific pointer of structure without length checking. This could be dangerous as those attributes are not validated and a malformed nlattr (e.g., length 0) could result in an OOB read that leaks heap dirty data.

Add the nla_len check before accessing the nlattr data and return EINVAL if the length check fails.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

120

Patches

Vulnerability mechanics

References

9

News mentions

0

No linked articles in our index yet.