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env: mtd: initialize saved_buf pointer

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When sect_size is greater than the CONFIG_ENV_SIZE, this wild
pointer will cause CPU halt or system crash.

Fixes: 03fb08d4ae ("env: Introduce support for MTD")
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
This commit is contained in:
Shiji Yang
2025-08-01 17:58:59 -06:00
committed by Tom Rini
parent 39ae954b04
commit 7e842bd331
1 changed files with 1 additions and 1 deletions
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env/mtd.c
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+1 -1
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@@ -201,7 +201,7 @@ static int env_mtd_erase(void)
{ {
struct mtd_info *mtd_env; struct mtd_info *mtd_env;
u32 sect_size, sect_num; u32 sect_size, sect_num;
char *saved_buf, *tmp; char *saved_buf = NULL, *tmp;
struct erase_info ei; struct erase_info ei;
size_t ret_len; size_t ret_len;
int remaining; int remaining;