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efi/libstub: Zero initialize heap allocated struct screen_info
authorQiang Ma <maqianga@uniontech.com>
Wed, 17 Jul 2024 07:00:43 +0000 (15:00 +0800)
committerArd Biesheuvel <ardb@kernel.org>
Wed, 17 Jul 2024 20:51:20 +0000 (22:51 +0200)
commitee8b8f5d83eb2c9caaebcf633310905ee76856e9
treeb1e319dbbce46089483e1a5687142645b7a5b796tree
parent4a2ebb082297f41803742729642961532e54079ecommit | diff
efi/libstub: Zero initialize heap allocated struct screen_info

After calling uefi interface allocate_pool to apply for memory, we
should clear 0 to prevent the possibility of using random values.

Signed-off-by: Qiang Ma <maqianga@uniontech.com>
Cc: <stable@vger.kernel.org> # v6.6+
Fixes: 732ea9db9d8a ("efi: libstub: Move screen_info handling to common code")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
drivers/firmware/efi/libstub/screen_info.c diff | blob | history
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