Hi William,It looks to me that attr_syntax_create overwrite the allocated
asi with one it allocates itself based on provided params.
On 5/16/19 8:17 AM, William Brown
wrote:
https://pagure.io/389-ds-base/pull-request/50379 This code is not yet ready to be merged. I'm currently having a problem with freeing the attrsyntaxinfo struct as part of the test. If the code is as is I get: ================================================================= ==98363==ERROR: LeakSanitizer: detected memory leaks Direct leak of 160 byte(s) in 1 object(s) allocated from: #0 0x7fbc40e28538 in calloc (/usr/lib64/libasan.so.5+0xec538) #1 0x7fbc40a34be6 in slapi_ch_calloc /home/william/development/389ds/ds/ldap/servers/slapd/ch_malloc.c:175 #2 0x40499c in attr_syntax_add_from_name /home/william/development/389ds/ds/test/libslapd/schema/filter_validate.c:25 #3 0x404b22 in test_libslapd_schema_filter_validate_simple /home/william/development/389ds/ds/test/libslapd/schema/filter_validate.c:56 #4 0x7fbc40d340d8 (/usr/lib64/libcmocka.so.0+0x50d8) Objects leaked above: 0x60e000000d60 (160 bytes) Direct leak of 160 byte(s) in 1 object(s) allocated from: #0 0x7fbc40e28538 in calloc (/usr/lib64/libasan.so.5+0xec538) #1 0x7fbc40a34be6 in slapi_ch_calloc /home/william/development/389ds/ds/ldap/servers/slapd/ch_malloc.c:175 #2 0x40499c in attr_syntax_add_from_name /home/william/development/389ds/ds/test/libslapd/schema/filter_validate.c:25 #3 0x404b0f in test_libslapd_schema_filter_validate_simple /home/william/development/389ds/ds/test/libslapd/schema/filter_validate.c:55 #4 0x7fbc40d340d8 (/usr/lib64/libcmocka.so.0+0x50d8) Objects leaked above: 0x60e000000ba0 (160 bytes) SUMMARY: AddressSanitizer: 320 byte(s) leaked in 2 allocation(s). However, if I free *a and *b, with attr_syntax_free, or slapi_ch_free, I get a double free error. The size of 160 bytes correlates to the sizeof(struct attrsyntaxinfo) but looking in gdb during attr_syntax_delete, the attr_syntax_free is called on asi as provided. So I'm not 100% sure what's going wrong here, but I'm not thoroughly experienced in this part of the code, so feedback would be really helpful about this resource issue. Thanks! — Sincerely, William Brown Senior Software Engineer, 389 Directory Server SUSE Labs _______________________________________________ 389-devel mailing list -- 389-devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to 389-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/389-devel@xxxxxxxxxxxxxxxxxxxxxxx |
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