From: Simon Glass <sjg@chromium.org>
Date: Thu, 27 Jul 2023 03:01:25 +0000 (-0600)
Subject: bootstd: Init the size before reading extlinux file
X-Git-Tag: v2025.01-rc5-pxa1908~901^2
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=11158aef8939bb6e54361e4dae3809a9cbe78cff;p=u-boot.git

bootstd: Init the size before reading extlinux file

The implementation in extlinux_pxe_getfile() does not pass a valid size
to bootmeth_read_file(), so this can fail if the uninited value happens to
be too small.

Fix this.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

diff --git a/boot/bootmeth_pxe.c b/boot/bootmeth_pxe.c
index ce986bd260..8d489a11aa 100644
--- a/boot/bootmeth_pxe.c
+++ b/boot/bootmeth_pxe.c
@@ -31,6 +31,9 @@ static int extlinux_pxe_getfile(struct pxe_context *ctx, const char *file_path,
 	int ret;
 
 	addr = simple_strtoul(file_addr, NULL, 16);
+
+	/* Allow up to 1GB */
+	*sizep = 1 << 30;
 	ret = bootmeth_read_file(info->dev, info->bflow, file_path, addr,
 				 sizep);
 	if (ret)