# git rev-parse -q --verify b5372fe5dc84235dbe04998efdede3c4daa866a9^{commit} b5372fe5dc84235dbe04998efdede3c4daa866a9 already have revision, skipping fetch # git checkout -q -f -B kisskb b5372fe5dc84235dbe04998efdede3c4daa866a9 # git clean -qxdf # < git log -1 # commit b5372fe5dc84235dbe04998efdede3c4daa866a9 # Author: Kees Cook # Date: Mon Feb 18 16:36:48 2019 -0800 # # exec: load_script: Do not exec truncated interpreter path # # Commit 8099b047ecc4 ("exec: load_script: don't blindly truncate # shebang string") was trying to protect against a confused exec of a # truncated interpreter path. However, it was overeager and also refused # to truncate arguments as well, which broke userspace, and it was # reverted. This attempts the protection again, but allows arguments to # remain truncated. In an effort to improve readability, helper functions # and comments have been added. # # Co-developed-by: Linus Torvalds # Signed-off-by: Kees Cook # Cc: Andrew Morton # Cc: Oleg Nesterov # Cc: Samuel Dionne-Riel # Cc: Richard Weinberger # Cc: Graham Christensen # Cc: Michal Hocko # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 b5372fe5dc84235dbe04998efdede3c4daa866a9 # < make -s -j 8 ARCH=arm O=/kisskb/build/linus_corgi_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- corgi_defconfig # make -s -j 8 ARCH=arm O=/kisskb/build/linus_corgi_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:133:34: warning: 'levelspread[]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[]' was declared here /kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery': /kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data': /kisskb/src/include/linux/skbuff.h:1338:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/ipv4/ip_output.c:885:14: note: 'extra_uref' was declared here /kisskb/src/net/ipv6/ip6_output.c: In function '__ip6_append_data': /kisskb/src/include/linux/skbuff.h:1338:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/ipv6/ip6_output.c:1270:14: note: 'extra_uref' was declared here /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:339:21: note: 'pdeo' was declared here Completed OK # rm -rf /kisskb/build/linus_corgi_defconfig_arm # Build took: 0:01:09.278195