What happened
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif mvmsta->tid_data was indexed by the TFD loop counter 'i' instead of the actual TID value 'tid'. This writes lq_color into a random tid_data slot unrelated to the BA entry. Since multi-TID blockack is not really in use, 'i' was always 0 and no harm was done. Add a out-of-bound check before accessing the array.
Affected versions
Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 through before c48b741277b01b2c3b4ecccedc72fc575b71dc04 (git); 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 through before e8ac5e91b1296f65c3d119fac3fa917ff458f811 (git); 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 through before 94d3982806c7f194b23484befde12934dda23064 (git); before 6.12.111 (semver); before 6.18.53 (semver) Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.