Answer in brief
CVE-2023-53456 records a Medium severity (CVSS 5.5) vulnerability in scsi: qla4xxx: Add length check when parsing nlattrs. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <cfa6a1a79ed6d336fac7a5d87eb5471e4401829f || >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <5925e224cc6edfef57b20447f18323208461309b || >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <47f3be62eab50b8cd7e1ae5fc2c4dae687497c34 || >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <6d65079c69dc1feb817ed71f5bd15e83a7d6832d || >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <f61fc650c47849637fa1771a31a11674c824138a || >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <25feffb3fbd51ae81d92c65cebc0e932663828b3 || >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <4ed21975311247bb84e82298eeb359ec0a0fa84d || >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <b018c0440b871d8b001c996e95fa4538bd292de6 || >=00c31889f7513e9ffa6b2b4de8ad6d7f59a61c80 <47cd3770e31df942e2bb925a9a855c79ed0662eb | cfa6a1a79ed6d336fac7a5d87eb5471e4401829f, 5925e224cc6edfef57b20447f18323208461309b, 47f3be62eab50b8cd7e1ae5fc2c4dae687497c34, 6d65079c69dc1feb817ed71f5bd15e83a7d6832d, f61fc650c47849637fa1771a31a11674c824138a, 25feffb3fbd51ae81d92c65cebc0e932663828b3, 4ed21975311247bb84e82298eeb359ec0a0fa84d, b018c0440b871d8b001c996e95fa4538bd292de6, 47cd3770e31df942e2bb925a9a855c79ed0662eb |
| Linux/Linuxgeneric | 3.2 | Not reported |
Published upstream
Oct 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.