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chore(libfdt): update to v1.7.0 source files

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Update libfdt to source files from v1.7.0 release.
Upstream commit:
039a99414e

Change-Id: I7e0475d2ddb819691f476e1753d1c899f8d7c278
Signed-off-by: Maksims Svecovs <maksims.svecovs@arm.com>
This commit is contained in:
Maksims Svecovs 2023-04-21 16:14:00 +01:00
parent 3331c33d03
commit 058e017e51
1 changed files with 12 additions and 8 deletions
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20
lib/libfdt/fdt.c
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@ -106,7 +106,6 @@ int fdt_check_header(const void *fdt)
}
hdrsize = fdt_header_size(fdt);
if (!can_assume(VALID_DTB)) {
if ((fdt_totalsize(fdt) < hdrsize)
|| (fdt_totalsize(fdt) > INT_MAX))
return -FDT_ERR_TRUNCATED;
@ -115,9 +114,7 @@ int fdt_check_header(const void *fdt)
if (!check_off_(hdrsize, fdt_totalsize(fdt),
fdt_off_mem_rsvmap(fdt)))
return -FDT_ERR_TRUNCATED;
}
if (!can_assume(VALID_DTB)) {
/* Bounds check structure block */
if (!can_assume(LATEST) && fdt_version(fdt) < 17) {
if (!check_off_(hdrsize, fdt_totalsize(fdt),
@ -165,7 +162,7 @@ const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int len)
uint32_t fdt_next_tag(const void *fdt, int startoffset, int *nextoffset)
{
const fdt32_t *tagp, *lenp;
uint32_t tag;
uint32_t tag, len, sum;
int offset = startoffset;
const char *p;
@ -191,12 +188,19 @@ uint32_t fdt_next_tag(const void *fdt, int startoffset, int *nextoffset)
lenp = fdt_offset_ptr(fdt, offset, sizeof(*lenp));
if (!can_assume(VALID_DTB) && !lenp)
return FDT_END; /* premature end */
len = fdt32_to_cpu(*lenp);
sum = len + offset;
if (!can_assume(VALID_DTB) &&
(INT_MAX <= sum || sum < (uint32_t) offset))
return FDT_END; /* premature end */
/* skip-name offset, length and value */
offset += sizeof(struct fdt_property) - FDT_TAGSIZE
+ fdt32_to_cpu(*lenp);
offset += sizeof(struct fdt_property) - FDT_TAGSIZE + len;
if (!can_assume(LATEST) &&
fdt_version(fdt) < 0x10 && fdt32_to_cpu(*lenp) >= 8 &&
((offset - fdt32_to_cpu(*lenp)) % 8) != 0)
fdt_version(fdt) < 0x10 && len >= 8 &&
((offset - len) % 8) != 0)
offset += 4;
break;