CVE-2023-52665 Information

Description

In the Linux kernel the following vulnerability has been resolved:

powerpc/ps3_defconfig: Disable PPC64_BIG_ENDIAN_ELF_ABI_V2

Commit 8c5fa3b5c4df (\powerpc/64: Make ELFv2 the default for big-endian builds) merged in Linux-6.5-rc1 changes the calling ABI in a way that is incompatible with the current code for the PS3’s LV1 hypervisor calls.

This change just adds the line ’ CONFIG_PPC64_BIG_ENDIAN_ELF_ABI_V2 is not set' to the ps3_defconfig file so that the PPC64_ELF_ABI_V1 is used.

Fixes run time errors like these:

BUG: Kernel NULL pointer dereference at 0x00000000 Faulting instruction address: 0xc000000000047cf0 Oops: Kernel access of bad area sig: 11 [1] Call Trace: [c0000000023039e0] [c00000000100ebfc] ps3_create_spu+0xc4/0x2b0 (unreliable) [c000000002303ab0] [c00000000100d4c4] create_spu+0xcc/0x3c4 [c000000002303b40] [c00000000100eae4] ps3_enumerate_spus+0xa4/0xf8

Reference

https://git.kernel.org/stable/c/f70557d48215b14a9284ac3a6ae7e4ee1d039f10 https://git.kernel.org/stable/c/d0f0780f03df54d08ced118d27834ee5008724e4 https://git.kernel.org/stable/c/482b718a84f08b6fc84879c3e90cc57dba11c115