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 products
linux: linux kernel
References8
- git.kernel.org/stable/c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0 Patch
- git.kernel.org/stable/c/26ee518695c484f75e3606d631278e84bd24ae02 Patch
- git.kernel.org/stable/c/8d7465be5163a923ee5d7459719ef5a021c1584a Patch
- git.kernel.org/stable/c/b6ba1eacf276063ebeefbbae8056043c24f2efaf Patch
- git.kernel.org/stable/c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a Patch
- git.kernel.org/stable/c/6509dbece7339dbc8980c706b9d623119a6de105
- git.kernel.org/stable/c/a8a11a876f0a97061ee5d9e61d0f5a0df7e241c7
- git.kernel.org/stable/c/e0dc1ad870d6788b049bfe1511ac75b2333a7550
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 16 · as of 13 November 2026
- CWE
- CWE-476
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