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).
git.kernel.org/stable/c/00548ac6b14428719c970ef90adae2b3b48c0cdf
git.kernel.org/stable/c/1d9e2de24533daca36cbf09e8d8596bf72b526b2
git.kernel.org/stable/c/26c6d7dc8c6a9fde9d362ab2eef6390efeff145e
git.kernel.org/stable/c/331f91d86f71d0bb89a44217cc0b2a22810bbd42
git.kernel.org/stable/c/36c79eb4845551e9f6d28c663b38ce0ab03b84a9
git.kernel.org/stable/c/838b49e211d59fa827ff9df062d4020917cffbdf