Use strscpy instead of strcpy in exfat_core.c, and add a check for length that will return already known FFS_INVALIDPATH. Suggested-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> Signed-off-by: Sandro Volery <sandro@xxxxxxxxxx> --- v3: Fixed replacing mistake v2: Introduced length check v1: Original patch drivers/staging/exfat/exfat_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c index da8c58149c35..4c40f1352848 100644 --- a/drivers/staging/exfat/exfat_core.c +++ b/drivers/staging/exfat/exfat_core.c @@ -2964,7 +2964,8 @@ s32 resolve_path(struct inode *inode, char *path, struct chain_t *p_dir, if (strlen(path) >= (MAX_NAME_LENGTH * MAX_CHARSET_SIZE)) return FFS_INVALIDPATH; - strcpy(name_buf, path); + if (strscpy(name_buf, path, sizeof(name_buf)) < 0) + return FFS_INVALIDPATH; nls_cstring_to_uniname(sb, p_uniname, name_buf, &lossy); if (lossy) -- 2.23.0 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
