# git rev-parse -q --verify 4c205c84e249e0a91dcfabe461d77667ec9b2d05^{commit} 4c205c84e249e0a91dcfabe461d77667ec9b2d05 already have revision, skipping fetch # git checkout -q -f -B kisskb 4c205c84e249e0a91dcfabe461d77667ec9b2d05 # git clean -qxdf # < git log -1 # commit 4c205c84e249e0a91dcfabe461d77667ec9b2d05 # Merge: ea9448b254e2 4f0882491a14 # Author: Linus Torvalds # Date: Sat Apr 4 12:24:47 2020 -0700 # # Merge tag 'keys-fixes-20200329' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs # # Pull keyrings fixes from David Howells: # "Here's a couple of patches that fix a circular dependency between # holding key->sem and mm->mmap_sem when reading data from a key. # # One potential issue is that a filesystem looking to use a key inside, # say, ->readpages() could deadlock if the key being read is the key # that's required and the buffer the key is being read into is on a page # that needs to be fetched. # # The case actually detected is a bit more involved - with a filesystem # calling request_key() and locking the target keyring for write - which # could be being read" # # * tag 'keys-fixes-20200329' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: # KEYS: Avoid false positive ENOMEM error on key read # KEYS: Don't write out to userspace while holding key semaphore # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version # < git log --format=%s --max-count=1 4c205c84e249e0a91dcfabe461d77667ec9b2d05 # < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- defconfig # < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- help # make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- olddefconfig # make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] return oldval == cmparg; ~~~~~~~^~~~~~~~~ /kisskb/src/kernel/futex.c:1652:6: note: 'oldval' was declared here int oldval, ret; ^~~~~~ Completed OK # rm -rf /kisskb/build/linus_s390-defconfig_s390x-gcc8 # Build took: 0:04:18.421338