CVE-2026-43113
wifi: wl1251: validate packet IDs before indexing tx_frames
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 6, 2026 |
| Last Updated | Jun 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < 6509dbece7339dbc8980c706b9d623119a6de105 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < a8a11a876f0a97061ee5d9e61d0f5a0df7e241c7 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < e0dc1ad870d6788b049bfe1511ac75b2333a7550 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < b6ba1eacf276063ebeefbbae8056043c24f2efaf 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < df15adc692a802636dd3f258fc7cca8bf7a0ed9a 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < 8d7465be5163a923ee5d7459719ef5a021c1584a 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < 26ee518695c484f75e3606d631278e84bd24ae02 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 < 0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0
Linux / Linux
2.6.31
References
git.kernel.org: https://git.kernel.org/stable/c/6509dbece7339dbc8980c706b9d623119a6de105 git.kernel.org: https://git.kernel.org/stable/c/a8a11a876f0a97061ee5d9e61d0f5a0df7e241c7 git.kernel.org: https://git.kernel.org/stable/c/e0dc1ad870d6788b049bfe1511ac75b2333a7550 git.kernel.org: https://git.kernel.org/stable/c/b6ba1eacf276063ebeefbbae8056043c24f2efaf git.kernel.org: https://git.kernel.org/stable/c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a git.kernel.org: https://git.kernel.org/stable/c/8d7465be5163a923ee5d7459719ef5a021c1584a git.kernel.org: https://git.kernel.org/stable/c/26ee518695c484f75e3606d631278e84bd24ae02 git.kernel.org: https://git.kernel.org/stable/c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0