CVE-2026-43113
wifi: wl1251: validate packet IDs before indexing tx_frames
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.31
References 8
git.kernel.org
- stable/c/6509dbece7339dbc8980c706b9d623119a6de105
- stable/c/a8a11a876f0a97061ee5d9e61d0f5a0df7e241c7
- stable/c/e0dc1ad870d6788b049bfe1511ac75b2333a7550
- stable/c/b6ba1eacf276063ebeefbbae8056043c24f2efaf
- stable/c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a
- stable/c/8d7465be5163a923ee5d7459719ef5a021c1584a
- stable/c/26ee518695c484f75e3606d631278e84bd24ae02
- stable/c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0