dtc/libfdt
David Gibson 8d15a63e84
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libfdt: Verify alignment of sub-blocks in dtb
A dtb is considered malformed if its structural elements (not things within
property values) are not naturally aligned.  This means that the structure
block must be aligned to a 32-bit boundary, the reserve map must be aligned
to  64-bit boundary and the whole thing must be loaded at a 64-bit aligned
address.  We currently verify that lasat condition in fdt_check_header()
but not the other cases.

Reported-by: Owen Sanzas (Ze Sheng) 盛泽 <zesheng@tamu.edu>
Link: https://github.com/dgibson/dtc/issues/178
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2026-01-28 12:14:09 +11:00
..
.gitignore Link tools and tests against libfdt shared library 2019-03-29 17:20:16 +11:00
fdt.c libfdt: Verify alignment of sub-blocks in dtb 2026-01-28 12:14:09 +11:00
fdt.h Use __ASSEMBLER__ instead of __ASSEMBLY__ 2025-03-14 13:51:31 +11:00
fdt_addresses.c libfdt: fix an incorrect integer promotion 2021-11-17 12:22:53 +11:00
fdt_check.c libfdt: Don't mask fdt_get_name() returned error 2022-07-30 13:52:33 +10:00
fdt_empty_tree.c libfdt: Replace GPL/BSD boilerplate/reference with SPDX tags 2019-06-21 21:06:10 +10:00
fdt_overlay.c Fix discarded const qualifiers 2026-01-10 18:55:38 +11:00
fdt_ro.c libfdt: fdt_get_name: Add can_assume(VALID_DTB) check 2025-12-10 17:47:45 +11:00
fdt_rw.c libfdt: Add fdt_setprop_namelen() 2024-12-06 16:42:25 +11:00
fdt_strerror.c libfdt: Add ALIGNMENT error string 2021-08-02 12:21:53 +10:00
fdt_sw.c Set last_comp_version correctly in new dtb and fix potential version issues in fdt_open_into 2021-01-04 12:26:37 +11:00
fdt_wip.c libfdt: libfdt_wip: Fix comparison warning 2020-10-02 10:30:07 +10:00
libfdt.h libfdt: Document most remaining functions 2025-08-01 11:34:18 +10:00
libfdt_env.h libfdt: Remove old MacOS strnlen workaround 2025-09-30 12:03:03 +10:00
libfdt_internal.h libfdt: Improve size savings in FDT_RO_PROBE slightly 2025-12-10 17:46:08 +11:00
Makefile.libfdt libfdt: rename libfdt-X.Y.Z.so to libfdt.so.X.Y.Z 2023-08-06 14:53:29 +10:00
meson.build meson: use override_find_program/override_dependency 2025-06-12 15:55:00 +10:00
sbom.cdx.json libfdt: Move the SBOM authors section 2024-11-20 16:16:57 +11:00
TODO libfdt: Document most remaining functions 2025-08-01 11:34:18 +10:00
version.lds libfdt: Add fdt_setprop_namelen() 2024-12-06 16:42:25 +11:00