CVE-2026-43113
wifi: wl1251: validate packet IDs before indexing tx_frames
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/b6ba1eacf276063ebeefbbae8056043c24f2efaf
- https://git.kernel.org/stable/c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a
- https://git.kernel.org/stable/c/8d7465be5163a923ee5d7459719ef5a021c1584a
- https://git.kernel.org/stable/c/26ee518695c484f75e3606d631278e84bd24ae02
- https://git.kernel.org/stable/c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0
References (8)
CVSS
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