Buildresult: linus/x86_64-allnoconfig/x86_64-gcc8 built on Jul 15 2023, 14:22

kisskb

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Status:	OK
Date/Time:	Jul 15 2023, 14:22
Duration:	0:00:31.061452
Builder:	alpine1
Revision:	Merge tag 'x86_urgent_for_6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (`b6e6cc1f78c772e952495b7416c9ac9029f9390c)`
Target:	linus/x86_64-allnoconfig/x86_64-gcc8
Branch:	linus
Compiler:	x86_64-gcc8 (x86_64-linux-gcc (GCC) 8.5.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	allnoconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify b6e6cc1f78c772e952495b7416c9ac9029f9390c^{commit} b6e6cc1f78c772e952495b7416c9ac9029f9390c already have revision, skipping fetch # git checkout -q -f -B kisskb b6e6cc1f78c772e952495b7416c9ac9029f9390c # git clean -qxdf # < git log -1 # commit b6e6cc1f78c772e952495b7416c9ac9029f9390c # Merge: be522ac7cdcc 535d0ae39185 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Fri Jul 14 20:19:25 2023 -0700 # # Merge tag 'x86_urgent_for_6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip # # Pull x86 CFI fixes from Peter Zijlstra: # "Fix kCFI/FineIBT weaknesses # # The primary bug Alyssa noticed was that with FineIBT enabled function # prologues have a spurious ENDBR instruction: # # __cfi_foo: # endbr64 # subl $hash, %r10d # jz 1f # ud2 # nop # 1: # foo: # endbr64 <--- sadface # # This means that any indirect call that fails to target the __cfi # symbol and instead targets (the regular old) foo+0, will succeed due # to that second ENDBR. # # Fixing this led to the discovery of a single indirect call that was # still doing this: ret_from_fork(). Since that's an assembly stub the # compiler would not generate the proper kCFI indirect call magic and it # would not get patched. # # Brian came up with the most comprehensive fix -- convert the thing to # C with only a very thin asm wrapper. This ensures the kernel thread # boostrap is a proper kCFI call. # # While discussing all this, Kees noted that kCFI hashes could/should be # poisoned to seal all functions whose address is never taken, further # limiting the valid kCFI targets -- much like we already do for IBT. # # So what was a 'simple' observation and fix cascaded into a bunch of # inter-related CFI infrastructure fixes" # # * tag 'x86_urgent_for_6.5_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: # x86/cfi: Only define poison_cfi() if CONFIG_X86_KERNEL_IBT=y # x86/fineibt: Poison ENDBR at +0 # x86: Rewrite ret_from_fork() in C # x86/32: Remove schedule_tail_wrapper() # x86/cfi: Extend ENDBR sealing to kCFI # x86/alternative: Rename apply_ibt_endbr() # x86/cfi: Extend {JMP,CAKK}_NOSPEC comment # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 b6e6cc1f78c772e952495b7416c9ac9029f9390c # make -s -j 160 ARCH=x86_64 O=/kisskb/build/linus_allnoconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- allnoconfig # < make -s -j 160 ARCH=x86_64 O=/kisskb/build/linus_allnoconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 160 ARCH=x86_64 O=/kisskb/build/linus_allnoconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 160 ARCH=x86_64 O=/kisskb/build/linus_allnoconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- Completed OK # rm -rf /kisskb/build/linus_allnoconfig_x86_64-gcc8 # Build took: 0:00:31.061452

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