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efi: Add a sanity check to efivar_store_raw()

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commit d6c066fda90d578aacdf19771a027ed484a79825 upstream.

Add a sanity check to efivar_store_raw() the same way
efivar_{attr,size,data}_read() and efivar_show_raw() have it.

Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200305084041.24053-3-vdronov@redhat.com
Link: https://lore.kernel.org/r/20200308080859.21568-25-ardb@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vladis Dronov 2020-03-08 09:08:55 +01:00 committed by Greg Kroah-Hartman
parent 5a09fc5060
commit 02f13e4e68
1 changed files with 3 additions and 0 deletions
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3
drivers/firmware/efi/efivars.c
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@ -272,6 +272,9 @@ efivar_store_raw(struct efivar_entry *entry, const char *buf, size_t count)
u8 *data;
int err;
if (!entry || !buf)
return -EINVAL;
if (is_compat()) {
struct compat_efi_variable *compat;