Commit 418396e212b59bf907dbccad997ff50f7eb61b16 introduced a bug that causes nand read and nand write to crash in strcmp due to a null pointer.
Root cause is that strchr(cmd, '.') returns a null pointer when the input string does not contain a '.'
The strcmp function does not check for null pointers, resulting in a crash.
Signed-off-by: Steve Sakoman steve@sakoman.com --- common/cmd_nand.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/common/cmd_nand.c b/common/cmd_nand.c index fa44295..a91ccf4 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -617,7 +617,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
s = strchr(cmd, '.');
- if (!strcmp(s, ".raw")) { + if (s && !strcmp(s, ".raw")) { raw = 1;
if (arg_off(argv[3], &dev, &off, &size))