diff options
| author | Vladis Dronov <vdronov@redhat.com> | 2020-03-08 11:08:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-20 12:54:20 +0300 |
| commit | 02f13e4e682390d10d7ece6260d9ee4059c8f450 (patch) | |
| tree | a9db89ca211358ec5eb51efc158b71935258d3b0 | |
| parent | 5a09fc5060754baf59b28cf92719a776d1c3bfbd (diff) | |
| download | linux-02f13e4e682390d10d7ece6260d9ee4059c8f450.tar.xz | |
efi: Add a sanity check to efivar_store_raw()
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>
| -rw-r--r-- | drivers/firmware/efi/efivars.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c index c8688490f148..1c65f5ac4368 100644 --- a/drivers/firmware/efi/efivars.c +++ b/drivers/firmware/efi/efivars.c @@ -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; |