Description: powerpc/47x: Fix 47x syscall return crash
References:
Notes:
 carnil> Introduced in 6f76a01173cc ("powerpc/syscall: implement system call entry/exit
 carnil> logic in C for PPC32"). Vulnerable versions: 5.12-rc1.
Bugs:
upstream: released (6.6-rc6) [f0eee815babed70a749d2496a7678be5b45b4c14]
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: N/A "Fixed before branching point"
6.1-upstream-stable: released (6.1.59) [8ac2689502f986a46f4221e239d4ff2897f1ccb3]
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.5.8-1)
6.1-bookworm-security: released (6.1.64-1)
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"