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libc: plug memory leaks in edge cases for the posix1e code.

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CID:	1016705
CID:	1016706
CID:	1016707

Differential Revision:	https://reviews.freebsd.org/D2023
This commit is contained in:
Pedro F. Giffuni 2015-03-13 18:42:43 +00:00
parent 5f6b63de7a
commit cf0f0b800c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=279962
2 changed files with 11 additions and 4 deletions
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1
lib/libc/posix1e/acl_calc_mask.c
View File

@ -104,6 +104,7 @@ acl_calc_mask(acl_t *acl_p)
/* if no mask exists, check acl_cnt... */
if (acl_int_new->acl_cnt == ACL_MAX_ENTRIES) {
errno = ENOMEM;
acl_free(acl_new);
return (-1);
}
/* ...and add the mask entry */

14
lib/libc/posix1e/acl_strip.c
View File

@ -82,8 +82,10 @@ _posix1e_acl_strip_np(const acl_t aclp, int recalculate_mask)
have_mask_entry = 0;
acl_new = acl_init(ACL_MAX_ENTRIES);
if (acl_new == NULL)
if (acl_new == NULL) {
acl_free(acl_old);
return (NULL);
}
tag = ACL_UNDEFINED_TAG;
/* only save the default user/group/other entries */
@ -94,16 +96,16 @@ _posix1e_acl_strip_np(const acl_t aclp, int recalculate_mask)
assert(_entry_brand(entry) == ACL_BRAND_POSIX);
if (acl_get_tag_type(entry, &tag) == -1)
return (NULL);
goto fail;
switch(tag) {
case ACL_USER_OBJ:
case ACL_GROUP_OBJ:
case ACL_OTHER:
if (acl_get_tag_type(entry, &tag) == -1)
return (NULL);
goto fail;
if (acl_get_permset(entry, &perm) == -1)
return (NULL);
goto fail;
if (acl_create_entry(&acl_new, &entry_new) == -1)
return (NULL);
if (acl_set_tag_type(entry_new, tag) == -1)
@ -120,6 +122,10 @@ _posix1e_acl_strip_np(const acl_t aclp, int recalculate_mask)
default:
break;
}
fail:
acl_free(acl_new);
acl_free(acl_old);
return (NULL);
}
assert(_acl_brand(acl_new) == ACL_BRAND_POSIX);