Buildresult: powerpc-next-rand/powerpc-randconfig/powerpc-gcc5 built on Feb 6 2019, 03:28

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

Status:	Failed
Date/Time:	Feb 6 2019, 03:28
Duration:	0:02:01.153422
Builder:	ka2
Revision:	powerpc/ptrace: Mitigate potential Spectre v1 (`7e1ed4da4a16e035a76001461fbd75c453b73206)`
Target:	powerpc-next-rand/powerpc-randconfig/powerpc-gcc5
Branch:	powerpc-next-rand
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	randconfig (download)
Log:	Download original Possible errors pci.c:(.init.text+0x188): undefined reference to `.pnv_npu2_init' make[1]: * [Makefile:1020: vmlinux] Error 1 make: * [Makefile:152: sub-make] Error 2 Possible warnings (3) arch/powerpc/xmon/dis-asm.h:20:9: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat=] arch/powerpc/xmon/dis-asm.h:26:9: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat=] arch/powerpc/kernel/eeh.c:1785:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] Full Log # git rev-parse -q --verify 7e1ed4da4a16e035a76001461fbd75c453b73206^{commit} 7e1ed4da4a16e035a76001461fbd75c453b73206 already have revision, skipping fetch # git checkout -q -f -B kisskb 7e1ed4da4a16e035a76001461fbd75c453b73206 # git clean -qxdf # < git log -1 # commit 7e1ed4da4a16e035a76001461fbd75c453b73206 # Author: Breno Leitao <leitao@debian.org> # Date: Wed Jan 30 10:46:00 2019 -0200 # # powerpc/ptrace: Mitigate potential Spectre v1 # # 'regno' is directly controlled by user space, hence leading to a potential # exploitation of the Spectre variant 1 vulnerability. # # On PTRACE_SETREGS and PTRACE_GETREGS requests, user space passes the # register number that would be read or written. This register number is # called 'regno' which is part of the 'addr' syscall parameter. # # This 'regno' value is checked against the maximum pt_regs structure size, # and then used to dereference it, which matches the initial part of a # Spectre v1 (and Spectre v1.1) attack. The dereferenced value, then, # is returned to userspace in the GETREGS case. # # This patch sanitizes 'regno' before using it to dereference pt_reg. # # Notice that given that speculation windows are large, the policy is # to kill the speculation on the first load and not worry if it can be # completed with a dependent load/store [1]. # # [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 # # Signed-off-by: Breno Leitao <leitao@debian.org> # Acked-by: Gustavo A. R. Silva <gustavo@embeddedor.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /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 7e1ed4da4a16e035a76001461fbd75c453b73206 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- randconfig KCONFIG_SEED=0x65CEAF6A # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig # yes \n \| make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- oldconfig yes: standard output: Broken pipe # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/arch/powerpc/xmon/xmon.c:67:0: /kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_powerpc': /kisskb/src/arch/powerpc/xmon/dis-asm.h:20:9: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat=] printf("%.8x", insn); ^ /kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_spu': /kisskb/src/arch/powerpc/xmon/dis-asm.h:26:9: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat=] printf("%.8x", insn); ^ /kisskb/src/arch/powerpc/kernel/eeh.c:1785:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] static int proc_eeh_show(struct seq_file m, void v) ^ arch/powerpc/platforms/pseries/pci.o: In function `.pSeries_final_fixup': pci.c:(.init.text+0x188): undefined reference to `.pnv_npu2_init' make[1]: * [/kisskb/src/Makefile:1020: vmlinux] Error 1 make: * [Makefile:152: sub-make] Error 2 Command 'make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 # Build took: 0:02:01.153422

© Michael Ellerman 2006-2018.