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libsepol: sepol_av_to_string: clear static buffer

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chenxiaolong reported this via
https://github.com/SELinuxProject/selinux/issues/23

A nicer fix would be to rework the interface to be more
like security_av_string() in libselinux, but that requires
updating all callers.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
This commit is contained in:
Stephen Smalley 2016-11-29 11:18:54 -05:00
parent dd8d5671e2
commit fff90bd22b
1 changed files with 1 additions and 0 deletions
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libsepol/src/util.c
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@ -89,6 +89,7 @@ char *sepol_av_to_string(policydb_t * policydbp, uint32_t tclass,
int rc;
int avlen = 0, len;
memset(avbuf, 0, sizeof avbuf);
cladatum = policydbp->class_val_to_struct[tclass - 1];
p = avbuf;
for (i = 0; i < cladatum->permissions.nprim; i++) {