jvoisinandRich Felker 74a28a8af2 protect stack canary from leak via read-as-string by zeroing second byte ...

This reduces entropy of the canary from 64-bit to 56-bit in exchange
for mitigating non-terminated C string overflows by setting the second
byte of the canary to nul, so that off-by-one write overflow with a
nul byte can still be detected.

Idea from GrapheneOS bionic commit 7024d880b51f03a796ff8832f1298f2f1531fd7b

2022-03-08 16:52:25 -05:00

..

__environ.c

reduce spurious inclusion of libc.h

2018-09-12 14:34:37 -04:00

__init_tls.c

remove redundant pthread struct members repeated for layout purposes

2020-08-27 18:36:45 -04:00

__libc_start_main.c

fix inconsistent signature of __libc_start_main

2021-01-30 16:42:26 -05:00

__reset_tls.c

combine arch ABI's DTP_OFFSET into DTV pointers

2018-10-12 00:39:56 -04:00

__stack_chk_fail.c

protect stack canary from leak via read-as-string by zeroing second byte

2022-03-08 16:52:25 -05:00

clearenv.c

reduce spurious inclusion of libc.h

2018-09-12 14:34:37 -04:00

getenv.c

reduce spurious inclusion of libc.h

2018-09-12 14:34:37 -04:00

putenv.c

reduce spurious inclusion of libc.h

2018-09-12 14:34:37 -04:00

secure_getenv.c

add secure_getenv function

2019-08-08 11:33:18 -04:00

setenv.c

overhaul internally-public declarations using wrapper headers

2018-09-12 14:34:33 -04:00

unsetenv.c

reduce spurious inclusion of libc.h

2018-09-12 14:34:37 -04:00