Buildresult: crypto/x86_64-allnoconfig/x86_64-gcc8 built on Jan 31 2022, 12:21

kisskb

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

Status:	OK
Date/Time:	Jan 31 2022, 12:21
Duration:	0:01:33.011958
Builder:	ka3
Revision:	crypto: octeontx2 - Avoid stack variable overflow (`47307c31d90ae7d52cebbbc7c1d4ff213213d4e9)`
Target:	crypto/x86_64-allnoconfig/x86_64-gcc8
Branch:	crypto
Compiler:	x86_64-gcc8 (x86_64-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	allnoconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9^{commit} # git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/crypto master # git rev-parse -q --verify 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9^{commit} 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9 # git checkout -q -f -B kisskb 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9 # git clean -qxdf # < git log -1 # commit 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9 # Author: Kees Cook <keescook@chromium.org> # Date: Wed Jan 12 12:38:11 2022 -0800 # # crypto: octeontx2 - Avoid stack variable overflow # # Building with -Warray-bounds showed a stack variable array index # overflow. Increase the expected size of the array to avoid the warning: # # In file included from ./include/linux/printk.h:555, # from ./include/asm-generic/bug.h:22, # from ./arch/x86/include/asm/bug.h:84, # from ./include/linux/bug.h:5, # from ./include/linux/mmdebug.h:5, # from ./include/linux/gfp.h:5, # from ./include/linux/firmware.h:7, # from drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c:5: # drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c: In function 'otx2_cpt_print_uc_dbg_info': # ./include/linux/dynamic_debug.h:162:33: warning: array subscript 4 is above array bounds of 'u32[4]' {aka 'unsigned int[4]'} [-Warray-bounds] # 162 \| _dynamic_func_call(fmt, __dynamic_pr_debug, \ # \| ^ # ./include/linux/dynamic_debug.h:134:17: note: in definition of macro '__dynamic_func_call' # 134 \| func(&id, ##__VA_ARGS__); \ # \| ^~~~ # ./include/linux/dynamic_debug.h:162:9: note: in expansion of macro '_dynamic_func_call' # 162 \| _dynamic_func_call(fmt, __dynamic_pr_debug, \ # \| ^~~~~~~~~~~~~~~~~~ # ./include/linux/printk.h:570:9: note: in expansion of macro 'dynamic_pr_debug' # 570 \| dynamic_pr_debug(fmt, ##__VA_ARGS__) # \| ^~~~~~~~~~~~~~~~ # drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c:1807:41: note: in expansion of macro 'pr_debug' # 1807 \| pr_debug("Mask: %8.8x %8.8x %8.8x %8.8x %8.8x", # \| ^~~~~~~~ # drivers/crypto/marvell/octeontx2/otx2_cptpf_ucode.c:1765:13: note: while referencing 'mask' # 1765 \| u32 mask[4]; # \| ^~~~ # # This is justified because the mask size (eng_grps->engs_num) can be at # most 144 (OTX2_CPT_MAX_ENGINES bits), which is larger than available # storage. 4 * 32 == 128, so this must be 5: 5 * 32bit = 160. # # Additionally clear the mask before conversion so trailing bits are zero. # # Cc: Herbert Xu <herbert@gondor.apana.org.au> # Cc: Boris Brezillon <bbrezillon@kernel.org> # Cc: Arnaud Ebalard <arno@natisbad.org> # Cc: Srujana Challa <schalla@marvell.com> # Cc: "David S. Miller" <davem@davemloft.net> # Cc: Suheil Chandran <schandran@marvell.com> # Cc: Shijith Thotton <sthotton@marvell.com> # Cc: Lukasz Bartosik <lbartosik@marvell.com> # Cc: linux-crypto@vger.kernel.org # Fixes: d9d7749773e8 ("crypto: octeontx2 - add apis for custom engine groups") # Acked-by: Ard Biesheuvel <ardb@kernel.org> # Signed-off-by: Kees Cook <keescook@chromium.org> # Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 47307c31d90ae7d52cebbbc7c1d4ff213213d4e9 # < make -s -j 10 ARCH=x86_64 O=/kisskb/build/crypto_x86_64-allnoconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux- allnoconfig # < make -s -j 10 ARCH=x86_64 O=/kisskb/build/crypto_x86_64-allnoconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 10 ARCH=x86_64 O=/kisskb/build/crypto_x86_64-allnoconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 10 ARCH=x86_64 O=/kisskb/build/crypto_x86_64-allnoconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux- Completed OK # rm -rf /kisskb/build/crypto_x86_64-allnoconfig_x86_64-gcc8 # Build took: 0:01:33.011958

© Michael Ellerman 2006-2018.