CVE-2026-43113

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < 6509dbece7339dbc8980c706b9d623119a6de105affected
LinuxLinux2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < a8a11a876f0a97061ee5d9e61d0f5a0df7e241c7affected
LinuxLinux2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < e0dc1ad870d6788b049bfe1511ac75b2333a7550affected
LinuxLinux2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < b6ba1eacf276063ebeefbbae8056043c24f2efafaffected
LinuxLinux2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < df15adc692a802636dd3f258fc7cca8bf7a0ed9aaffected
LinuxLinux2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < 8d7465be5163a923ee5d7459719ef5a021c1584aaffected
LinuxLinux2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < 26ee518695c484f75e3606d631278e84bd24ae02affected
LinuxLinux2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < 0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0affected
LinuxLinux2.6.31affected
LinuxLinux0 < 2.6.31unaffected
LinuxLinux5.10.258 <= 5.10.*unaffected
LinuxLinux5.15.209 <= 5.15.*unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.136 <= 6.6.*unaffected
LinuxLinux6.12.83 <= 6.12.*unaffected
LinuxLinux6.18.24 <= 6.18.*unaffected
LinuxLinux6.19.14 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References