From: Austin Ray <austin@austinray.io>
To: notmuch@notmuchmail.org
Subject: Re: notmuch_database_open_with_config() does not NULL pointer on error
Date: Sat, 23 Oct 2021 00:22:25 -0400 [thread overview]
Message-ID: <20211023042225.xt36nzpsukqs6kid@athena> (raw)
In-Reply-To: <20211021190401.imirxau2ewke6e2m@athena>
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Following up on this, ASAN reports a memory leak on a failure. Using
'notmuch_database_close()' or 'notmuch_database_destroy()' results in a
SEGFAULT.
I've updated my reproducer program to free the database on non-failure
cases so it's easier to see the memory leak.
#include <notmuch.h>
#include <stdio.h>
int main() {
const char *db_path = "/home/aray/mail";
notmuch_database_t *db = NULL;
notmuch_status_t st = notmuch_database_open_with_config(
db_path, NOTMUCH_DATABASE_MODE_READ_ONLY, NULL, NULL, &db, NULL);
if (st != NOTMUCH_STATUS_SUCCESS) {
printf("Received status: %s\n", notmuch_status_to_string(st));
if (db) {
printf("Received non-null DB pointer\n");
return -1;
}
}
if (db) {
notmuch_database_destroy(db);
}
return 0;
}
If there's an obvious way to fix the memory leak that I may have
overlooked, please let me know. I'm not a C expert.
Thanks,
Austin
--
https://austinray.io
Open Source Maintainer, Software Engineer, Keyboard Enthusiast
GPG: 0127 ED83 B939 CCC9 8082 476E 1AA0 B115 C8AC 2C9E
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next prev parent reply other threads:[~2021-10-23 4:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-21 19:04 notmuch_database_open_with_config() does not NULL pointer on error Austin Ray
2021-10-23 4:22 ` Austin Ray [this message]
2021-10-23 9:24 ` WIP fixes for nulling of database argument " David Bremner
2021-10-23 9:24 ` [PATCH 1/5] test: add two known broken tests for missing config files David Bremner
2021-10-23 9:24 ` [PATCH 2/5] lib/open: fix potential double-free, ensure *database=NULL on error David Bremner
2021-10-23 9:24 ` [PATCH 3/5] lib/open: document expectations for db on error, add tests David Bremner
2021-10-23 9:24 ` [PATCH 4/5] lib/create: fix memory leak, ensure *database=NULL on error David Bremner
2021-10-23 9:24 ` [PATCH 5/5] lib/load_config: document expectations for db on error, add tests David Bremner
2021-10-23 13:12 ` WIP fixes for nulling of database argument on error Austin Ray
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