Description
In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - zero report size on F54 work error In rmi_f54_work(), if an error occurs during report request or command verification, the code jumped directly to the 'error' label, bypassing the 'abort' label where f54->report_size was normally zeroed out. This left f54->report_size containing its previous successful payload size. If a user then altered the V4L2 format to a smaller size, and a subsequent run failed, rmi_f54_buffer_queue() would copy the stale, larger payload size into the shrunken V4L2 buffer, causing a heap buffer overflow. Fix this by merging the 'abort' and 'error' labels into a single 'out' exit path, and ensuring that f54->report_size is always set to 0 on failure by checking for error and zeroing the local report_size first.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
3a762dbd5347514c3cb2ac756a92a3d1c7646a2d to < 62079c17ec07d64362bec367ee7a525b0dbf6bf9affected3a762dbd5347514c3cb2ac756a92a3d1c7646a2d to < 79521ed3cc9ea48476666ccacf45ecd6954b29a4affected3a762dbd5347514c3cb2ac756a92a3d1c7646a2d to < c669c64ab71afa7b467c4d7e18f6a05e96b97a1faffected3a762dbd5347514c3cb2ac756a92a3d1c7646a2d to < 77749685e55da19b187df215b5da4080842ca5c7affected3a762dbd5347514c3cb2ac756a92a3d1c7646a2d to < c6cfda79f26c69e97db9805808c3b44d02227b4baffected3a762dbd5347514c3cb2ac756a92a3d1c7646a2d to < b28593a05afdd812b590e1045b5bd862a5869225affected3a762dbd5347514c3cb2ac756a92a3d1c7646a2d to < 88c8174d72900d77fbdf2f527d54b6ff2da876a8affected3a762dbd5347514c3cb2ac756a92a3d1c7646a2d to < dc76c3c8e8ad09362b8c1561f3928288c15cba2eaffected
Linux Linux
Default version status: affected
4.9affected0 to < 4.9unaffected5.10.266 to ≤ 5.10.*unaffected5.15.217 to ≤ 5.15.*unaffected6.1.184 to ≤ 6.1.*unaffected6.6.153 to ≤ 6.6.*unaffected6.12.105 to ≤ 6.12.*unaffected6.18.46 to ≤ 6.18.*unaffected7.1.10 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/62079c17ec07d64362bec367ee7a525b0dbf6bf9 ↗
- https://git.kernel.org/stable/c/79521ed3cc9ea48476666ccacf45ecd6954b29a4 ↗
- https://git.kernel.org/stable/c/c669c64ab71afa7b467c4d7e18f6a05e96b97a1f ↗
- https://git.kernel.org/stable/c/77749685e55da19b187df215b5da4080842ca5c7 ↗
- https://git.kernel.org/stable/c/c6cfda79f26c69e97db9805808c3b44d02227b4b ↗
- https://git.kernel.org/stable/c/b28593a05afdd812b590e1045b5bd862a5869225 ↗
- https://git.kernel.org/stable/c/88c8174d72900d77fbdf2f527d54b6ff2da876a8 ↗
- https://git.kernel.org/stable/c/dc76c3c8e8ad09362b8c1561f3928288c15cba2e ↗