CVE-2023-53476

MEDIUM

Linux Kernel - NULL Pointer Dereference in iw_cxgb4 c4iw_fill_res_cm_id_entry

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry() This condition needs to match the previous "if (epcp->state == LISTEN) {" exactly to avoid a NULL dereference of either "listen_ep" or "ep". The problem is that "epcp" has been re-assigned so just testing "if (epcp->state == LISTEN) {" a second time is not sufficient.

Scores

CVSS v3 5.5
EPSS 0.0014
EPSS Percentile 3.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (11)
Linux/Linux < 4.18
Linux/Linux 116aeb8873712ea559d26b0d9d88147af5c88db5 - 24278dc380aab6a1aef0a75317f57ad4c2453cf6
Linux/Linux 116aeb8873712ea559d26b0d9d88147af5c88db5 - 4ca446b127c568b59cb8d9748b6f70499624bb18
Linux/Linux 116aeb8873712ea559d26b0d9d88147af5c88db5 - 76e0396313c79ecd0df44ee3c18745cfac52b3e6
Linux/Linux 116aeb8873712ea559d26b0d9d88147af5c88db5 - dd55240e4364d64befcc575b0d33091881524f42
Linux/Linux 4.18
Linux/Linux 5.15.99 - 5.15.*
Linux/Linux 6.1.16 - 6.1.*
Linux/Linux 6.2.3 - 6.2.*
Linux/Linux 6.3
... and 1 more
Published Oct 01, 2025
Tracked Since Feb 18, 2026