From e511cc3b1ad8ced8e18464edf22f5b8a83ec1cb3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Mon, 25 Oct 2021 15:13:01 +0200 Subject: [PATCH] tools: kwboot: Do not modify kwbimage header before increasing its size MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This ensures that kwboot_img_grow_hdr() function still sees valid kwbimage header. Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Reviewed-by: Stefan Roese --- tools/kwboot.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tools/kwboot.c b/tools/kwboot.c index adec4ec97d..bb7555369c 100644 --- a/tools/kwboot.c +++ b/tools/kwboot.c @@ -1352,17 +1352,18 @@ kwboot_add_bin_ohdr_v1(void *img, size_t *size, uint32_t binsz) uint32_t num_args; uint32_t offset; uint32_t ohdrsz; + uint8_t *prev_ext; if (hdr->ext & 0x1) { for_each_opt_hdr_v1 (ohdr, img) if (opt_hdr_v1_next(ohdr) == NULL) break; - *opt_hdr_v1_ext(ohdr) |= 1; - ohdr = opt_hdr_v1_next(ohdr); + prev_ext = opt_hdr_v1_ext(ohdr); + ohdr = _opt_hdr_v1_next(ohdr); } else { - hdr->ext |= 1; ohdr = (void *)(hdr + 1); + prev_ext = &hdr->ext; } /* @@ -1377,6 +1378,8 @@ kwboot_add_bin_ohdr_v1(void *img, size_t *size, uint32_t binsz) ohdrsz = sizeof(*ohdr) + 4 + 4 * num_args + binsz + 4; kwboot_img_grow_hdr(hdr, size, ohdrsz); + *prev_ext |= 1; + ohdr->headertype = OPT_HDR_V1_BINARY_TYPE; ohdr->headersz_msb = ohdrsz >> 16; ohdr->headersz_lsb = cpu_to_le16(ohdrsz & 0xffff); -- 2.39.5