The length of configured MTDPARTS_DEFAULT string
could be greather than console printbuffer size.
Check the lenght of the string before printing
to prevent U-Boot crashes.
Signed-off-by: Anatolij Gustschin <ag...@denx.de>
---
common/cmd_mtdparts.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c
index 230e96e..d4cb194 100644
--- a/common/cmd_mtdparts.c
+++ b/common/cmd_mtdparts.c
@@ -1254,6 +1254,14 @@ static void list_partitions(void)
printf("\ndefaults:\n");
printf("mtdids : %s\n",
mtdids_default ? mtdids_default : "none");
+
+ /* Check to prevent printbuffer overflows */
+ if (mtdparts_default && strlen(mtdparts_default) > CONFIG_SYS_PBSIZE) {
+ puts("Warning: mtdparts too long,"
+ " please increase CONFIG_SYS_PBSIZE\n");
+ return;
+ }
+
printf("mtdparts: %s\n",
mtdparts_default ? mtdparts_default : "none");
}
--
1.6.3.3
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
