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| author | Vladis Dronov <vdronov@redhat.com> | 2020-03-08 09:08:55 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-20 09:06:24 +0100 |
| commit | a9cd480120fd019b96b20d1018055c5ae152d893 (patch) | |
| tree | 8ebdc97cfc08e0b3c7e6fb7ca192701c8ebf5e99 /drivers/firmware | |
| parent | 126fc95c27436587fd9f6c09122070488ff6a8eb (diff) | |
| download | linux-stable-a9cd480120fd019b96b20d1018055c5ae152d893.tar.gz linux-stable-a9cd480120fd019b96b20d1018055c5ae152d893.tar.bz2 linux-stable-a9cd480120fd019b96b20d1018055c5ae152d893.zip | |
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>
Diffstat (limited to 'drivers/firmware')
| -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 20992e94261a..fc4d0228b7d8 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; |