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[PATCH v2 2/4] builtin/archive: close file descriptor on dup2() failure

From
Hoyoung Lee <lhywkd22@gmail.com>
Date
Jul 22, 2025, 08:12 UTC
Message-ID
<20250722081219.1086866-3-lhywkd22@gmail.com>
In-Reply-To
<20250722081219.1086866-1-lhywkd22@gmail.com>

In create_output_file(), the file descriptor returned by xopen() was not closed if dup2() failed. This leads to a potential resource leak. Ensure the file descriptor is closed regardless of whether dup2() succeeds or fails.

Signed-off-by: Hoyoung Lee <lhywkd22@gmail.com>
---
 builtin/archive.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/builtin/archive.c b/builtin/archive.c
index 13ea7308c8..c919a39f90 100644
--- a/builtin/archive.c
+++ b/builtin/archive.c
@@ -14,6 +14,7 @@ static void create_output_file(const char *output_file)
 	int output_fd = xopen(output_file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
 	if (output_fd != 1) {
 		if (dup2(output_fd, 1) < 0)
+			close(output_fd);
 			die_errno(_("could not redirect output"));
 		else
 			close(output_fd);
-- 
2.34.1
Previous: Hoyoung LeeNext: Jeff King
Message 3 of 12 in “Fix resource leaks in various helpers and builtin commands”
  1. 0/4 Fix resource leaks in various helpers and builtin commandsHoyoung Lee, Jul 22, 2025
  2. 1/4 t/helper/test-truncate: close file descriptor after truncationHoyoung Lee, Jul 22, 2025
  3. 2/4 builtin/archive: close file descriptor on dup2() failureHoyoung Lee, Jul 22, 2025
  4. Jeff KingJul 22, 2025
  5. 3/4 t/helper/test-delta: close fd if fstat() fails after open()Hoyoung Lee, Jul 22, 2025
  6. Eric SunshineJul 22, 2025
  7. Jeff KingJul 22, 2025
  8. 4/4 t/helper/test-delta: close fd if fstat() fails after second open()Hoyoung Lee, Jul 22, 2025
  9. Jeff KingJul 22, 2025
  10. Jeff KingJul 22, 2025
  11. Junio C HamanoJul 22, 2025
  12. Jeff KingJul 22, 2025

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