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pro-actively disable LD_AUDIT for setuid binaries, regardless 

of where the libraries are loaded from. This is to try to make sure that
CVE-2010-3856 cannot sneak back in. Upstream is unlikely to take this,
since it limits the functionality of LD_AUDIT.

Gbp-Pq: Topic ubuntu
Gbp-Pq: Name local-disable-ld_audit.diff
This commit is contained in:
Kees Cook 2022-05-13 23:32:11 +08:00 committed by openKylinBot
parent 9c2d95a0e9
commit 22ba7cee9c
1 changed files with 1 additions and 1 deletions
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2
elf/rtld.c
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@ -2504,7 +2504,7 @@ process_dl_audit (char *str)
char *p; char *p;
while ((p = (strsep) (&str, ":")) != NULL) while ((p = (strsep) (&str, ":")) != NULL)
if (dso_name_valid_for_suid (p)) if (! __glibc_unlikely (__libc_enable_secure) && dso_name_valid_for_suid (p))
{ {
/* This is using the local malloc, not the system malloc. The /* This is using the local malloc, not the system malloc. The
memory can never be freed. */ memory can never be freed. */