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[PATCH v3 11/13] log: fix memory leak in open_next_file()

From
Junio C Hamano <gitster@pobox.com>
Date
May 26, 2017, 03:35 UTC
Message-ID
<20170526033510.1793-12-gitster@pobox.com>
In-Reply-To
<20170526033510.1793-1-gitster@pobox.com>
From: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Noticed-by: Jeff King <peff@peff.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/log.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/builtin/log.c b/builtin/log.c
index 26d6a3cf14..f075838df9 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -842,8 +842,10 @@ static int open_next_file(struct commit *commit, const char *subject,
 	if (output_directory) {
 		strbuf_addstr(&filename, output_directory);
 		if (filename.len >=
-		    PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len)
+		    PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) {
+			strbuf_release(&filename);
 			return error(_("name of output directory is too long"));
+		}
 		strbuf_complete(&filename, '/');
 	}
 
@@ -857,9 +859,11 @@ static int open_next_file(struct commit *commit, const char *subject,
 	if (!quiet)
 		printf("%s\n", filename.buf + outdir_offset);
 
-	if ((rev->diffopt.file = fopen(filename.buf, "w")) == NULL)
-		return error_errno(_("Cannot open patch file %s"),
-				   filename.buf);
+	if ((rev->diffopt.file = fopen(filename.buf, "w")) == NULL) {
+		error_errno(_("Cannot open patch file %s"), filename.buf);
+		strbuf_release(&filename);
+		return -1;
+	}
 
 	strbuf_release(&filename);
 	return 0;
-- 
2.13.0-491-g71cfeddc25
Previous: Junio C HamanoNext: Junio C Hamano
Message 23 of 41 in “What's cooking in git.git (May 2017, #06; Mon, 22)”
  1. Junio C HamanoMay 22, 2017
  2. Jonathan NiederMay 22, 2017
  3. Junio C HamanoMay 23, 2017
  4. Jonathan NiederMay 23, 2017
  5. Junio C HamanoMay 23, 2017
  6. Duy NguyenMay 25, 2017
  7. Junio C HamanoMay 26, 2017
  8. 00/13 reporting unexpected errors after (f)openJunio C Hamano, May 26, 2017
  9. 01/13 git_fopen: fix a sparse 'not declared' warningJunio C Hamano, May 26, 2017
  10. 02/13 use xfopen() in more placesJunio C Hamano, May 26, 2017
  11. 03/13 clone: use xfopen() instead of fopen()Junio C Hamano, May 26, 2017
  12. 05/13 config.mak.uname: set FREAD_READS_DIRECTORIES for Darwin, tooJunio C Hamano, May 26, 2017
  13. Stefan BellerMay 30, 2017
  14. Junio C HamanoMay 30, 2017
  15. Stefan BellerMay 30, 2017
  16. 04/13 config.mak.uname: set FREAD_READS_DIRECTORIES for Linux and FreeBSDJunio C Hamano, May 26, 2017
  17. 06/13 wrapper.c: add and use warn_on_fopen_errors()Junio C Hamano, May 26, 2017
  18. 07/13 wrapper.c: add and use fopen_or_warn()Junio C Hamano, May 26, 2017
  19. 09/13 print errno when reporting a system call errorJunio C Hamano, May 26, 2017
  20. 10/13 rerere.c: move error_errno() closer to the source system callJunio C Hamano, May 26, 2017
  21. Stefan BellerMay 30, 2017
  22. 08/13 wrapper.c: make warn_on_inaccessible() staticJunio C Hamano, May 26, 2017
  23. 11/13 log: fix memory leak in open_next_file()Junio C Hamano, May 26, 2017
  24. 12/13 wrapper: factor out is_missing_file_error()Junio C Hamano, May 26, 2017
  25. 1/2 compat-util: is_missing_file_error()Junio C Hamano, May 30, 2017
  26. 2/2 treewide: use is_missing_file_error() where ENOENT and ENOTDIR are checkedJunio C Hamano, May 30, 2017
  27. 13/13 is_missing_file_error(): work around EINVAL on WindowsJunio C Hamano, May 26, 2017
  28. 1/2 mingw: verify that paths are not mistaken for remote nicknamesJohannes Sixt, May 29, 2017
  29. 2/2 mingw_fopen: report ENOENT for invalid file namesJohannes Sixt, May 29, 2017
  30. Ævar Arnfjörð BjarmasonMay 29, 2017
  31. Johannes SixtMay 29, 2017
  32. Ramsay JonesMay 29, 2017
  33. Junio C HamanoMay 30, 2017
  34. Ramsay JonesMay 30, 2017
  35. Junio C HamanoMay 29, 2017
  36. Junio C HamanoMay 30, 2017
  37. Johannes SixtMay 30, 2017
  38. Junio C HamanoMay 30, 2017
  39. Stefan BellerMay 30, 2017
  40. Junio C HamanoMay 30, 2017
  41. Stefan BellerMay 30, 2017

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