# git rev-parse -q --verify c9cc0517bba9f0213f1e55172feceb99e5512daf^{commit}
c9cc0517bba9f0213f1e55172feceb99e5512daf
already have revision, skipping fetch
# git checkout -q -f -B kisskb c9cc0517bba9f0213f1e55172feceb99e5512daf
# git clean -qxdf
# < git log -1
# commit c9cc0517bba9f0213f1e55172feceb99e5512daf
# Author: Jason A. Donenfeld <Jason@zx2c4.com>
# Date:   Thu Feb 6 12:42:01 2020 +0100
# 
#     crypto: chacha20poly1305 - prevent integer overflow on large input
#     
#     This code assigns src_len (size_t) to sl (int), which causes problems
#     when src_len is very large. Probably nobody in the kernel should be
#     passing this much data to chacha20poly1305 all in one go anyway, so I
#     don't think we need to change the algorithm or introduce larger types
#     or anything. But we should at least error out early in this case and
#     print a warning so that we get reports if this does happen and can look
#     into why anybody is possibly passing it that much data or if they're
#     accidently passing -1 or similar.
#     
#     Fixes: d95312a3ccc0 ("crypto: lib/chacha20poly1305 - reimplement crypt_from_sg() routine")
#     Cc: Ard Biesheuvel <ardb@kernel.org>
#     Cc: stable@vger.kernel.org # 5.5+
#     Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
#     Acked-by: Ard Biesheuvel <ardb@kernel.org>
#     Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 c9cc0517bba9f0213f1e55172feceb99e5512daf
# < make -s -j 20 ARCH=x86_64 O=/kisskb/build/crypto_x86_64-allnoconfig_x86_64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  allnoconfig
# make -s -j 20 ARCH=x86_64 O=/kisskb/build/crypto_x86_64-allnoconfig_x86_64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  
/kisskb/src/tools/objtool
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq':
/kisskb/src/arch/x86/kernel/apic/io_apic.c:1037:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap':
/kisskb/src/arch/x86/kernel/e820.c:665:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/crypto_x86_64-allnoconfig_x86_64-gcc4.6
# Build took: 0:00:21.881643