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| author | Daniel Stenberg <daniel@haxx.se> | 2019-03-12 08:37:18 +0100 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2019-03-12 21:45:03 +0100 |
| commit | 401cb929543e3370726574c01fd90d965c5b3c60 (patch) | |
| tree | 9a25e32ccdc5b70f4915d1ca4f6e246fb9dc5ef6 | |
| parent | 7e68fed88ba6be7d46df8e45d698b6c2053f8fee (diff) | |
| download | curl-401cb929543e3370726574c01fd90d965c5b3c60.tar.gz | |
memdebug: log pointer before freeing its data
Coverity warned for two potentional "Use after free" cases. Both are false
positives because the memory wasn't used, it was only the actual pointer
value that was logged.
The fix still changes the order of execution to avoid the warnings.
Coverity CID 1443033 and 1443034
Closes #3671
| -rw-r--r-- | lib/curl_addrinfo.c | 4 | ||||
| -rw-r--r-- | lib/memdebug.c | 6 |
2 files changed, 5 insertions, 5 deletions
diff --git a/lib/curl_addrinfo.c b/lib/curl_addrinfo.c index 961311fa3..16c4779c1 100644 --- a/lib/curl_addrinfo.c +++ b/lib/curl_addrinfo.c @@ -550,13 +550,13 @@ void curl_dbg_freeaddrinfo(struct addrinfo *freethis, int line, const char *source) { + curl_dbg_log("ADDR %s:%d freeaddrinfo(%p)\n", + source, line, (void *)freethis); #ifdef USE_LWIPSOCK lwip_freeaddrinfo(freethis); #else (freeaddrinfo)(freethis); #endif - curl_dbg_log("ADDR %s:%d freeaddrinfo(%p)\n", - source, line, (void *)freethis); } #endif /* defined(CURLDEBUG) && defined(HAVE_FREEADDRINFO) */ diff --git a/lib/memdebug.c b/lib/memdebug.c index 5fcddc4e1..e3ac8edf7 100644 --- a/lib/memdebug.c +++ b/lib/memdebug.c @@ -463,11 +463,11 @@ int curl_dbg_fclose(FILE *file, int line, const char *source) DEBUGASSERT(file != NULL); - res = fclose(file); - if(source) curl_dbg_log("FILE %s:%d fclose(%p)\n", - source, line, (void *)file); + source, line, (void *)file); + + res = fclose(file); return res; } |