u-boot.git/boot/fdt_region.c, branch main

fdt: Check return value of fdt_get_name() calls

2026-06-13T16:42:17Z

fdt_get_name() can return NULL and set len to a negative error code. fdt_find_regions() does not check for this, leading to a potential NULL pointer dereference and a buffer out-of-bounds write during signature verification of an untrusted FIT. fdt_next_region(), fdt_check_full(), and display_fdt_by_regions() also lack validation. Add NULL checks and propagate the error code from fdt_get_name() to the caller. Signed-off-by: Anton Ivanov Reviewed-by: Simon Glass

fdt_region: Check return value of fdt_get_property_by_offset() calls

2026-06-12T21:35:56Z

fdt_get_property_by_offset() returns NULL for FDT with version less than 0x10. fdt_find_regions() dereferences the result without checking, leading to a NULL pointer dereference during signature verification of an untrusted FIT. fdt_add_alias_regions() and fdt_next_region() also lack validation. Add NULL checks before accessing the returned property pointer. Also add a missing NULL check for fdt_string() in fdt_add_alias_regions() and fdt_next_region(). Signed-off-by: Anton Ivanov

doc: replace @return by Return:

2022-01-19T17:11:34Z

Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt

fdtgrep: Handle an empty output tree

2021-12-17T16:44:59Z

In strange cases it is possible for fdtgrep to find nothing to output. Typically this means that the resulting SPL device tree is not going to allow anything to boot, but at present the tree is actually invalid, since it only has an END tag in the struct region. The FDT spec requires at least a root node. So add a special case to include at least this, if the FDT_REG_SUPERNODES flag is set. This ensures that grepping an empty tree still produces a valid tree. Also add comments to the enum since it is not completely obvious from the names now. The typical symptom of this problem is a message from binman: pylibfdt error -11: FDT_ERR_BADSTRUCTURE Signed-off-by: Simon Glass

Create a new boot/ directory

2021-11-12T00:01:56Z

Quite a lot of the code in common/relates to booting and images. Before adding more it seems like a good time to move the code into its own directory. Most files with 'boot' or 'image' in them are moved, except: - autoboot.c which relates to U-Boot automatically running a script - bootstage.c which relates to U-Boot timing Drop the removal of boot* files from the output directory, since this interfers with the symlinks created by tools and there does not appear to be any such file from my brief testing. Signed-off-by: Simon Glass Reviewed-by: Artem Lapkin Tested-by: Artem Lapkin