[PATCH] blame: prevent a segv when -L given start > EOF
From: Jay Soffian <hidden>
Date: 2016-06-15 22:48:12
Subsystem:
the rest · Maintainer:
Linus Torvalds
blame would segv if given -L <lineno> with <lineno> past the end of the file. While we're fixing the bug, add test cases for an invalid <start> when called as -L <start>,<end> or -L<start>. Signed-off-by: Jay Soffian <redacted> --- bottom is start and top is end, which seems backwards to me, but alas, it is what it is. :-) builtin-blame.c | 2 +- t/t8003-blame.sh | 8 ++++++++ 2 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/builtin-blame.c b/builtin-blame.c
index 6408ec8..10f7eac 100644
--- a/builtin-blame.c
+++ b/builtin-blame.c@@ -2433,7 +2433,7 @@ parse_done: if (top < 1) top = lno; bottom--; - if (lno < top) + if (lno < top || lno < bottom) die("file %s has only %lu lines", path, lno); ent = xcalloc(1, sizeof(*ent));
diff --git a/t/t8003-blame.sh b/t/t8003-blame.sh
index ad834f2..4a8db74 100755
--- a/t/t8003-blame.sh
+++ b/t/t8003-blame.sh@@ -157,4 +157,12 @@ EOF git --no-pager blame $COMMIT -- uno >/dev/null ' +test_expect_success 'blame -L with invalid start' ' + test_must_fail git blame -L5 tres 2>&1 | grep "has only 2 lines" +' + +test_expect_success 'blame -L with invalid end' ' + git blame -L1,5 tres 2>&1 | grep "has only 2 lines" +' + test_done
--
1.7.0.rc1.200.g9c1f9