The vulnerability of the enter_rtas() function in the arch/powerpc/kernel/rtas.c module, which is part of the PowerPC platform support for the Linux operating system, allows a hacker to trigger a service failure.

The vulnerability of the enterrtas function in the arch/powerpc/kernel/rtas.c module of the Linux operating system’s PowerPC kernel is related to an uncontrolled recursion. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2022-49440: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Keep MSRRI set when calling RTAS RTAS runs in real mode MSRDR and MSRIR unset and in 32-bit big endian mode MSRSF,LE unset. The change in MSR is done in enterrtas in a relatively complex way, since the MSR value cou...