lkml.org 
[lkml]   [2020]   [Mar]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.19 88/89] efi: Add a sanity check to efivar_store_raw()
Date
From: Vladis Dronov <vdronov@redhat.com>

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>


---
drivers/firmware/efi/efivars.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -272,6 +272,9 @@ efivar_store_raw(struct efivar_entry *en
u8 *data;
int err;

+ if (!entry || !buf)
+ return -EINVAL;
+
if (is_compat()) {
struct compat_efi_variable *compat;


\
 
 \ /
  Last update: 2020-03-17 12:00    [W:0.434 / U:0.396 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site