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| author | Alexander Shiyan <shc_work@mail.ru> | 2020-10-27 09:17:54 +0300 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-10-28 09:24:41 +0100 |
| commit | ca4292daf6a4d15b6e6ce0f610697e75df516533 (patch) | |
| tree | 8c938ad447e62e42683c034bfbd26eb1b730433d /arch | |
| parent | 8ac84eedb283788584b90f07a1026377fa6a24fa (diff) | |
| download | barebox-ca4292daf6a4d15b6e6ce0f610697e75df516533.tar.gz barebox-ca4292daf6a4d15b6e6ce0f610697e75df516533.tar.xz | |
ARM: bootm: Add lower bound check of kernel in SDRAM
In get_kernel_addresses(), we add the lower bound check of kernel position.
Kernel address cannot be lower than SDRAM start.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/lib32/bootm.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/lib32/bootm.c b/arch/arm/lib32/bootm.c index ad807fb1d6..28a645a9d0 100644 --- a/arch/arm/lib32/bootm.c +++ b/arch/arm/lib32/bootm.c @@ -114,10 +114,11 @@ static int get_kernel_addresses(size_t image_size, kaddr = mem_start + image_decomp_size; /* - * Make sure we do not place the image past the end of the + * Make sure we do not place the image outside of the * available memory. */ - if (kaddr + image_size + spacing >= mem_end) + if (((kaddr + image_size + spacing) > mem_end) && + ((mem_end - image_size - spacing) >= mem_start)) kaddr = mem_end - image_size - spacing; *load_address = PAGE_ALIGN_DOWN(kaddr); |