romenskiy2012/curl
1
0
Fork 0
mirror of https://github.com/curl/curl.git synced 2026-08-01 10:38:04 +03:00
Code Issues Projects Releases Packages Wiki Activity

curl: tool_read_cb fix of segfault

Browse source 
When transfers read client input without an upload file, the check if
upload file is '.' strcompared a NULL.

Add test 1548 to reproduce and verify fix.

Reported-by: d1r3ct0r
Fixes #17978
Closes #17987
This commit is contained in:
Stefan Eissing 2025-07-21 15:56:19 +02:00 • committed by Viktor Szakats
parent c221c0ee59
commit 9657a2041e
No known key found for this signature in database
GPG key ID: B5ABD165E2AEF201
3 changed files with 45 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/tool_cb_rea.c
View file

@ -90,7 +90,7 @@ size_t tool_read_cb(char *buffer, size_t sz, size_t nmemb, void *userdata)
Make sure we are in non-blocking mode and infd is not regular stdin
On Linux per->infd should be stdin (0) and the block below should not
execute */
if(!strcmp(per->uploadfile, ".") && per->infd > 0) {
if(per->uploadfile && !strcmp(per->uploadfile, ".") && per->infd > 0) {
#if defined(_WIN32) && !defined(CURL_WINDOWS_UWP) && !defined(UNDER_CE)
rc = recv(per->infd, buffer, curlx_uztosi(sz * nmemb), 0);
if(rc < 0) {