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bootstd: Fix a memory leak in the efi manager bootflow

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efi_get_var() allocates memory which has to be freed after the value of
the variable is consumed. Free the memory properly

Fixes: f2bfa0cb17 ("bootstd: Make efi_mgr bootmeth work for non-sandbox setups")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
This commit is contained in:
Ilias Apalodimas 2023-12-07 14:36:36 +02:00 • committed by Tom Rini
parent 09a17b0d01
commit eb09c33084
1 changed files with 2 additions and 0 deletions
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2
boot/bootmeth_efi_mgr.c
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@ -16,6 +16,7 @@
#include <dm.h>
#include <efi_loader.h>
#include <efi_variable.h>
#include <malloc.h>
/**
* struct efi_mgr_priv - private info for the efi-mgr driver
@ -65,6 +66,7 @@ static int efi_mgr_read_bootflow(struct udevice *dev, struct bootflow *bflow)
bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid,
&size);
if (bootorder) {
free(bootorder);
bflow->state = BOOTFLOWST_READY;
return 0;
}