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efi_loader: fix efi_get_next_variable_name_mem()

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The VariableNameSize parameter is in bytes but u16_strnlen() counts u16.

Fix the parameter check for null termination.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Heinrich Schuchardt
2022-12-18 06:08:57 +00:00
parent 645502743a
commit 70a4ac693d
2 changed files with 5 additions and 4 deletions
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3
include/efi_variable.h
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@@ -268,7 +268,8 @@ const efi_guid_t *efi_auth_var_get_guid(const u16 *name);
* efi_get_next_variable_name_mem() - Runtime common code across efi variable
* implementations for GetNextVariable()
* from the cached memory copy
* @variable_name_size: size of variable_name buffer in byte
*
* @variable_name_size: size of variable_name buffer in bytes
* @variable_name: name of uefi variable's name in u16
* @vendor: vendor's guid
*