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* [PATCH] gen_init_cpio: allocate enough space for dname
@ 2017-03-21 16:44 Colin King
  0 siblings, 0 replies; only message in thread
From: Colin King @ 2017-03-21 16:44 UTC (permalink / raw)
  To: kernel-janitors; +Cc: linux-kernel

From: Colin Ian King <colin.king@canonical.com>

The allocation of dname is short by 1 byte, so increase the allocation
size.

Detected with CoverityScan, CID#711628 ("Out-of-bounds-access (OVERRUN)")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 usr/gen_init_cpio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c
index 225ad244cf88..981682f4faea 100644
--- a/usr/gen_init_cpio.c
+++ b/usr/gen_init_cpio.c
@@ -418,7 +418,7 @@ static int cpio_mkfile_line(const char *line)
 		int len;
 		int nend;
 
-		dname = malloc(strlen(line));
+		dname = malloc(strlen(line) + 1);
 		if (!dname) {
 			fprintf (stderr, "out of memory (%d)\n", dname_len);
 			goto fail;
-- 
2.11.0

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2017-03-21 16:44 [PATCH] gen_init_cpio: allocate enough space for dname Colin King

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