CVE-2026-43113

HIGH

wifi: wl1251: validate packet IDs before indexing tx_frames

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wl1251: validate packet IDs before indexing tx_frames wl1251_tx_packet_cb() uses the firmware completion ID directly to index the fixed 16-entry wl->tx_frames[] array. The ID is a raw u8 from the completion block, and the callback does not currently verify that it fits the array before dereferencing it. Reject completion IDs that fall outside wl->tx_frames[] and keep the existing NULL check in the same guard. This keeps the fix local to the trust boundary and avoids touching the rest of the completion flow.

Scores

CVSS v3 8.8
EPSS 0.0025
EPSS Percentile 16.0%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-476
Status published
Products (32)
linux/Kernel 2.6.31 - 5.10.258linux
linux/Kernel 5.11.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.24linux
linux/Kernel 6.19.0 - 6.19.14linux
linux/Kernel 6.2.0 - 6.6.136linux
linux/Kernel 6.7.0 - 6.12.83linux
Linux/Linux < 2.6.31
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 26ee518695c484f75e3606d631278e84bd24ae02
... and 22 more
Published May 06, 2026
Tracked Since May 06, 2026