PT-2026-37423 · Linux · Linux

Published 2026-05-06 · Updated 2026-05-06 · CVE-2026-43113

Mitre

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.

Related Identifiers

CVE-2026-43113

Affected Products

Linux

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-43113 · Security Note
• https://git.kernel.org/stable/c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0 · Note
• https://git.kernel.org/stable/c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a · Note
• https://git.kernel.org/stable/c/8d7465be5163a923ee5d7459719ef5a021c1584a · Note
• https://git.kernel.org/stable/c/b6ba1eacf276063ebeefbbae8056043c24f2efaf · Note
• https://git.kernel.org/stable/c/26ee518695c484f75e3606d631278e84bd24ae02 · Note