# 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 <keescook@chromium.org>
# 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 <torvalds@linux-foundation.org>
#     Signed-off-by: Kees Cook <keescook@chromium.org>
#     Cc: Andrew Morton <akpm@linux-foundation.org>
#     Cc: Oleg Nesterov <oleg@redhat.com>
#     Cc: Samuel Dionne-Riel <samuel@dionne-riel.com>
#     Cc: Richard Weinberger <richard.weinberger@gmail.com>
#     Cc: Graham Christensen <graham@grahamc.com>
#     Cc: Michal Hocko <mhocko@suse.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 b5372fe5dc84235dbe04998efdede3c4daa866a9
# < make -s -j 24 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  allmodconfig
# make -s -j 24 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
In file included from /kisskb/src/include/asm-generic/bug.h:18,
                 from /kisskb/src/arch/arm64/include/asm/bug.h:37,
                 from /kisskb/src/include/linux/bug.h:5,
                 from /kisskb/src/include/linux/mmdebug.h:5,
                 from /kisskb/src/include/linux/mm.h:9,
                 from /kisskb/src/drivers/dma/imx-dma.c:14:
/kisskb/src/drivers/dma/imx-dma.c: In function 'imxdma_sg_next':
/kisskb/src/include/linux/kernel.h:846:29: warning: comparison of distinct pointer types lacks a cast
   (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
                             ^~
/kisskb/src/include/linux/kernel.h:860:4: note: in expansion of macro '__typecheck'
   (__typecheck(x, y) && __no_side_effects(x, y))
    ^~~~~~~~~~~
/kisskb/src/include/linux/kernel.h:870:24: note: in expansion of macro '__safe_cmp'
  __builtin_choose_expr(__safe_cmp(x, y), \
                        ^~~~~~~~~~
/kisskb/src/include/linux/kernel.h:879:19: note: in expansion of macro '__careful_cmp'
 #define min(x, y) __careful_cmp(x, y, <)
                   ^~~~~~~~~~~~~
/kisskb/src/drivers/dma/imx-dma.c:288:8: note: in expansion of macro 'min'
  now = min(d->len, sg_dma_len(sg));
        ^~~
Completed OK
# rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64-gcc8
# Build took: 0:19:01.841633