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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2021-06-24 10:52:08 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2021-06-25 09:27:07 +0200 |
| commit | 8d21690fa82bbc29cc34005103a2eda63eafabf3 (patch) | |
| tree | d8ce8f5ed7cf851e1938b3cd96e0ae4860467f3b /arch/arm/lib32 | |
| parent | 3b93bcd8db01bbe49249b59b0581b3ba375cb96b (diff) | |
| download | barebox-8d21690fa82bbc29cc34005103a2eda63eafabf3.tar.gz barebox-8d21690fa82bbc29cc34005103a2eda63eafabf3.tar.xz | |
fdt: Check blob size during unflattening
of_unflatten_dtb() doesn't check the size of the device tree blob
passed to it. Add a size argument end add checks for the size. Some
callers have no idea of the buffer size themselves, INT_MAX is passed
in these cases.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.barebox.org/20210624085223.14616-4-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/lib32')
| -rw-r--r-- | arch/arm/lib32/bootm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/lib32/bootm.c b/arch/arm/lib32/bootm.c index 28a645a9d0..0ffb374cf1 100644 --- a/arch/arm/lib32/bootm.c +++ b/arch/arm/lib32/bootm.c @@ -421,7 +421,7 @@ static int do_bootz_linux_fdt(int fd, struct image_data *data, void **outfdt) if (IS_BUILTIN(CONFIG_OFTREE)) { struct device_node *root; - root = of_unflatten_dtb(oftree); + root = of_unflatten_dtb(oftree, header->totalsize); if (IS_ERR(root)) { pr_err("unable to unflatten devicetree\n"); goto err_free; |