Buildresult: linus/um-allyesconfig/um-x86_64 built on Dec 20 2020, 09:01

kisskb

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Status:	Failed
Date/Time:	Dec 20 2020, 09:01
Duration:	0:05:46.061236
Builder:	blade46
Revision:	Merge tag 'close-range-cloexec-unshare-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux (`467f8165a2b0e6accf3d0dd9c8089b1dbde29f7f)`
Target:	linus/um-allyesconfig/um-x86_64
Branch:	linus
Compiler:	um-x86_64 (x86_64-linux-gcc.br_real (Buildroot 2017.05) 5.4.0 / GNU ld (GNU Binutils) 2.27)
Config:	allyesconfig (download)
Log:	Download original Possible errors make[5]: * [Makefile:287: elfdep] Error 1 make[4]: * [kernel/bpf/preload/Makefile:8: kernel/bpf/preload/libbpf.a] Error 2 make[3]: * [scripts/Makefile.build:496: kernel/bpf/preload] Error 2 make[2]: * [scripts/Makefile.build:496: kernel/bpf] Error 2 make[1]: * [Makefile:1805: kernel] Error 2 make: * [Makefile:185: __sub-make] Error 2 Possible warnings (6) .config:4441:warning: override: reassigning to symbol GCC_PLUGIN_CYC_COMPLEXITY .config:4443:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY .config:4447:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:4449:warning: override: reassigning to symbol UML_NET_SLIP .config:4452:warning: override: reassigning to symbol UML_NET_MCAST .config:4454:warning: override: reassigning to symbol UML_NET_SLIRP Full Log # git rev-parse -q --verify 467f8165a2b0e6accf3d0dd9c8089b1dbde29f7f^{commit} 467f8165a2b0e6accf3d0dd9c8089b1dbde29f7f already have revision, skipping fetch # git checkout -q -f -B kisskb 467f8165a2b0e6accf3d0dd9c8089b1dbde29f7f # git clean -qxdf # < git log -1 # commit 467f8165a2b0e6accf3d0dd9c8089b1dbde29f7f # Merge: 3872f516aab3 6abc20f8f879 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Sat Dec 19 13:03:12 2020 -0800 # # Merge tag 'close-range-cloexec-unshare-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux # # Pull close_range fix from Christian Brauner: # "syzbot reported a bug when asking close_range() to unshare the file # descriptor table and making all fds close-on-exec. # # If CLOSE_RANGE_UNSHARE the caller will receive a private file # descriptor table in case their file descriptor table is currently # shared before operating on the requested file descriptor range. # # For the case where the caller has requested all file descriptors to be # actually closed via e.g. close_range(3, ~0U, CLOSE_RANGE_UNSHARE) the # kernel knows that the caller does not need any of the file descriptors # anymore and will optimize the close operation by only copying all # files in the range from 0 to 3 and no others. # # However, if the caller requested CLOSE_RANGE_CLOEXEC together with # CLOSE_RANGE_UNSHARE the caller wants to still make use of the file # descriptors so the kernel needs to copy all of them and can't # optimize. # # The original patch didn't account for this and thus could cause oopses # as evidenced by the syzbot report because it assumed that all fds had # been copied. Fix this by handling the CLOSE_RANGE_CLOEXEC case and # copying all fds if the two flags are specified together. # # This should've been caught in the selftests but the original patch # didn't cover this case and I didn't catch it during review. So in # addition to the bugfix I'm also adding selftests. They will reliably # reproduce the bug on a non-fixed kernel and allows us to catch # regressions and verify correct behavior. # # Note, the kernel selftest tree contained a bunch of changes that made # the original selftest fail to compile so there are small fixups in # here make them compile without warnings" # # * tag 'close-range-cloexec-unshare-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: # selftests/core: add regression test for CLOSE_RANGE_UNSHARE \| CLOSE_RANGE_CLOEXEC # selftests/core: add test for CLOSE_RANGE_UNSHARE \| CLOSE_RANGE_CLOEXEC # selftests/core: handle missing syscall number for close_range # selftests/core: fix close_range_test build after XFAIL removal # close_range: unshare all fds for CLOSE_RANGE_UNSHARE \| CLOSE_RANGE_CLOEXEC # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 467f8165a2b0e6accf3d0dd9c8089b1dbde29f7f # < make -s -j 32 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allyesconfig # 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 # < make -s -j 32 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help # make -s -j 32 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig .config:4441:warning: override: reassigning to symbol GCC_PLUGIN_CYC_COMPLEXITY .config:4443:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY .config:4447:warning: override: reassigning to symbol UML_NET_ETHERTAP .config:4449:warning: override: reassigning to symbol UML_NET_SLIP .config:4452:warning: override: reassigning to symbol UML_NET_MCAST .config:4454:warning: override: reassigning to symbol UML_NET_SLIRP # make -s -j 32 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 Auto-detecting system features: ... libelf: [ [31mOFF[m ] ... zlib: [ [31mOFF[m ] ... bpf: [ [32mon[m ] No libelf found make[5]: * [Makefile:287: elfdep] Error 1 make[4]: * [/kisskb/src/kernel/bpf/preload/Makefile:8: kernel/bpf/preload/libbpf.a] Error 2 make[3]: * [/kisskb/src/scripts/Makefile.build:496: kernel/bpf/preload] Error 2 make[3]: * Waiting for unfinished jobs.... make[2]: * [/kisskb/src/scripts/Makefile.build:496: kernel/bpf] Error 2 make[2]: * Waiting for unfinished jobs.... make[1]: * [/kisskb/src/Makefile:1805: kernel] Error 2 make[1]: * Waiting for unfinished jobs.... make: *** [Makefile:185: __sub-make] Error 2 Command 'make -s -j 32 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_um-allyesconfig_um-x86_64 # Build took: 0:05:46.061236

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