# git rev-parse -q --verify 716f4aaa7b48a55c73d632d0657b35342b1fefd7^{commit} 716f4aaa7b48a55c73d632d0657b35342b1fefd7 already have revision, skipping fetch # git checkout -q -f -B kisskb 716f4aaa7b48a55c73d632d0657b35342b1fefd7 # git clean -qxdf # < git log -1 # commit 716f4aaa7b48a55c73d632d0657b35342b1fefd7 # Merge: 841c35169323 46f5ab762d04 # Author: Linus Torvalds # Date: Mon Feb 12 07:15:45 2024 -0800 # # Merge tag 'vfs-6.8-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs # # Pull vfs fixes from Christian Brauner: # # - Fix performance regression introduced by moving the security # permission hook out of do_clone_file_range() and into its caller # vfs_clone_file_range(). # # This causes the security hook to be called in situation were it # wasn't called before as the fast permission checks were left in # do_clone_file_range(). # # Fix this by merging the two implementations back together and # restoring the old ordering: fast permission checks first, expensive # ones later. # # - Tweak mount_setattr() permission checking so that mount properties on # the real rootfs can be changed. # # When we added mount_setattr() we added additional checks compared to # legacy mount(2). If the mount had a parent then verify that the # caller and the mount namespace the mount is attached to match and if # not make sure that it's an anonymous mount. # # But the real rootfs falls into neither category. It is neither an # anoymous mount because it is obviously attached to the initial mount # namespace but it also obviously doesn't have a parent mount. So that # means legacy mount(2) allows changing mount properties on the real # rootfs but mount_setattr(2) blocks this. This causes regressions (See # the commit for details). # # Fix this by relaxing the check. If the mount has a parent or if it # isn't a detached mount, verify that the mount namespaces of the # caller and the mount are the same. Technically, we could probably # write this even simpler and check that the mount namespaces match if # it isn't a detached mount. But the slightly longer check makes it # clearer what conditions one needs to think about. # # * tag 'vfs-6.8-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: # fs: relax mount_setattr() permission checks # remap_range: merge do_clone_file_range() into vfs_clone_file_range() # < /opt/cross/kisskb/x86-64--glibc--bleeding-edge-2022.08-1/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/x86-64--glibc--bleeding-edge-2022.08-1/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 716f4aaa7b48a55c73d632d0657b35342b1fefd7 # make -s -j 40 ARCH=um O=/kisskb/build/linus_allmodconfig_um-x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/x86-64--glibc--bleeding-edge-2022.08-1/bin/x86_64-linux- SUBARCH=x86_64 allmodconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_KCOV=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n # Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n # Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n # Added to kconfig CONFIG_GCC_PLUGIN_STRUCTLEAK=n # Added to kconfig CONFIG_GCC_PLUGIN_RANDSTRUCT=n # Added to kconfig CONFIG_UML_NET=n # Added to kconfig CONFIG_UML_NET_ETHERTAP=n # Added to kconfig CONFIG_UML_NET_TUNTAP=n # Added to kconfig CONFIG_UML_NET_SLIP=n # Added to kconfig CONFIG_UML_NET_DAEMON=n # Added to kconfig CONFIG_UML_NET_VDE=n # Added to kconfig CONFIG_UML_NET_MCAST=n # Added to kconfig CONFIG_UML_NET_PCAP=n # Added to kconfig CONFIG_UML_NET_SLIRP=n # Added to kconfig CONFIG_GCOV_KERNEL=n # Added to kconfig CONFIG_DEBUG_INFO_BTF=n # Added to kconfig CONFIG_BPF_PRELOAD=n # Added to kconfig CONFIG_SPI_STM32_QSPI=n # < make -s -j 40 ARCH=um O=/kisskb/build/linus_allmodconfig_um-x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/x86-64--glibc--bleeding-edge-2022.08-1/bin/x86_64-linux- SUBARCH=x86_64 help # make -s -j 40 ARCH=um O=/kisskb/build/linus_allmodconfig_um-x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/x86-64--glibc--bleeding-edge-2022.08-1/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig .config:14165:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY .config:14169:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:14171:warning: override: reassigning to symbol UML_NET_SLIP .config:14176:warning: override: reassigning to symbol UML_NET_SLIRP # make -s -j 40 ARCH=um O=/kisskb/build/linus_allmodconfig_um-x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/x86-64--glibc--bleeding-edge-2022.08-1/bin/x86_64-linux- SUBARCH=x86_64 /kisskb/src/arch/x86/um/user-offsets.c:17:6: warning: no previous prototype for ‘foo’ [-Wmissing-prototypes] 17 | void foo(void) | ^~~ In file included from /kisskb/src/arch/um/kernel/asm-offsets.c:1: /kisskb/src/arch/x86/um/shared/sysdep/kernel-offsets.h:9:6: error: no previous prototype for ‘foo’ [-Werror=missing-prototypes] 9 | void foo(void) | ^~~ cc1: all warnings being treated as errors make[3]: *** [/kisskb/src/scripts/Makefile.build:116: arch/um/kernel/asm-offsets.s] Error 1 make[2]: *** [/kisskb/src/Makefile:1199: prepare0] Error 2 make[1]: *** [/kisskb/src/Makefile:240: __sub-make] Error 2 make: *** [Makefile:240: __sub-make] Error 2 Command 'make -s -j 40 ARCH=um O=/kisskb/build/linus_allmodconfig_um-x86_64-gcc12 CROSS_COMPILE=/opt/cross/kisskb/x86-64--glibc--bleeding-edge-2022.08-1/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2. # rm -rf /kisskb/build/linus_allmodconfig_um-x86_64-gcc12 # Build took: 0:00:17.672464