CVE-2023-53456

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Source
https://cve.org/CVERecord?id=CVE-2023-53456
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53456.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-53456
Downstream
Related
Published
2025-10-01T11:42:27.821Z
Modified
2026-03-20T12:33:10.009527Z
Summary
scsi: qla4xxx: Add length check when parsing nlattrs
Details

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:

  • qla4xxxsetchap_entry()

  • qla4xxxifaceset_param()

  • qla4xxxsysfsddbsetparam()

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53456.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80
Fixed
cfa6a1a79ed6d336fac7a5d87eb5471e4401829f
Fixed
5925e224cc6edfef57b20447f18323208461309b
Fixed
47f3be62eab50b8cd7e1ae5fc2c4dae687497c34
Fixed
6d65079c69dc1feb817ed71f5bd15e83a7d6832d
Fixed
f61fc650c47849637fa1771a31a11674c824138a
Fixed
25feffb3fbd51ae81d92c65cebc0e932663828b3
Fixed
4ed21975311247bb84e82298eeb359ec0a0fa84d
Fixed
b018c0440b871d8b001c996e95fa4538bd292de6
Fixed
47cd3770e31df942e2bb925a9a855c79ed0662eb

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53456.json"