# git rev-parse -q --verify 86be334f0b8127a5ca13443ba2f14858cd077ba3^{commit} 86be334f0b8127a5ca13443ba2f14858cd077ba3 already have revision, skipping fetch # git checkout -q -f -B kisskb 86be334f0b8127a5ca13443ba2f14858cd077ba3 # git clean -qxdf # < git log -1 # commit 86be334f0b8127a5ca13443ba2f14858cd077ba3 # Author: Christophe Leroy # Date: Sun Feb 9 18:14:42 2020 +0000 # # powerpc/8xx: Fix clearing of bits 20-23 in ITLB miss # # In ITLB miss handled the line supposed to clear bits 20-23 on the L2 # ITLB entry is buggy and does indeed nothing, leading to undefined # value which could allow execution when it shouldn't. # # Properly do the clearing with the relevant instruction. # # Fixes: 74fabcadfd43 ("powerpc/8xx: don't use r12/SPRN_SPRG_SCRATCH2 in TLB Miss handlers") # Cc: stable@vger.kernel.org # v5.0+ # Signed-off-by: Christophe Leroy # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/4f70c2778163affce8508a210f65d140e84524b4.1581272050.git.christophe.leroy@c-s.fr # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 86be334f0b8127a5ca13443ba2f14858cd077ba3 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_warp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 44x/warp_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_warp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- INFO: Uncompressed kernel (size 0x661c20) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-5.5.0-pika+ Created: Tue Feb 11 00:26:57 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3306443 Bytes = 3228.95 KiB = 3.15 MiB Load Address: 00700000 Entry Point: 00701524 Completed OK # rm -rf /kisskb/build/powerpc-fixes_44x_warp_defconfig_powerpc-gcc5 # Build took: 0:00:56.446719