Description
In the Linux kernel, the following vulnerability has been resolved: remoteproc: mediatek: Make sure IPI buffer fits in L2TCM The IPI buffer location is read from the firmware that we load to the System Companion Processor, and it's not granted that both the SRAM (L2TCM) size that is defined in the devicetree node is large enough for that, and while this is especially true for multi-core SCP, it's still useful to check on single-core variants as well. Failing to perform this check may make this driver perform R/W operations out of the L2TCM boundary, resulting (at best) in a kernel panic. To fix that, check that the IPI buffer fits, otherwise return a failure and refuse to boot the relevant SCP core (or the SCP at all, if this is single core).
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
3efa0ea743b77d1611501f7d8b4f320d032d73ae to < 00548ac6b14428719c970ef90adae2b3b48c0cdfaffected3efa0ea743b77d1611501f7d8b4f320d032d73ae to < 1d9e2de24533daca36cbf09e8d8596bf72b526b2affected3efa0ea743b77d1611501f7d8b4f320d032d73ae to < 26c6d7dc8c6a9fde9d362ab2eef6390efeff145eaffected3efa0ea743b77d1611501f7d8b4f320d032d73ae to < 838b49e211d59fa827ff9df062d4020917cffbdfaffected3efa0ea743b77d1611501f7d8b4f320d032d73ae to < 36c79eb4845551e9f6d28c663b38ce0ab03b84a9affected3efa0ea743b77d1611501f7d8b4f320d032d73ae to < 331f91d86f71d0bb89a44217cc0b2a22810bbd42affected
Linux Linux
Default version status: affected
5.11affected0 to < 5.11unaffected5.15.160 to ≤ 5.15.*unaffected6.1.92 to ≤ 6.1.*unaffected6.6.32 to ≤ 6.6.*unaffected6.8.11 to ≤ 6.8.*unaffected6.9.2 to ≤ 6.9.*unaffected6.10 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/00548ac6b14428719c970ef90adae2b3b48c0cdf ↗
- https://git.kernel.org/stable/c/1d9e2de24533daca36cbf09e8d8596bf72b526b2 ↗
- https://git.kernel.org/stable/c/26c6d7dc8c6a9fde9d362ab2eef6390efeff145e ↗
- https://git.kernel.org/stable/c/838b49e211d59fa827ff9df062d4020917cffbdf ↗
- https://git.kernel.org/stable/c/36c79eb4845551e9f6d28c663b38ce0ab03b84a9 ↗
- https://git.kernel.org/stable/c/331f91d86f71d0bb89a44217cc0b2a22810bbd42 ↗