6.10-stable review patch. If anyone has any objections, please let me know.
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From: Qiang Ma maqianga@uniontech.com
commit ee8b8f5d83eb2c9caaebcf633310905ee76856e9 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/firmware/efi/libstub/screen_info.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/firmware/efi/libstub/screen_info.c +++ b/drivers/firmware/efi/libstub/screen_info.c @@ -32,6 +32,8 @@ struct screen_info *__alloc_screen_info( if (status != EFI_SUCCESS) return NULL;
+ memset(si, 0, sizeof(*si)); + status = efi_bs_call(install_configuration_table, &screen_info_guid, si); if (status == EFI_SUCCESS)