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authorTakashi Iwai <tiwai@suse.de>2022-12-22 09:11:48 +0100
committerTakashi Iwai <tiwai@suse.de>2022-12-22 09:11:48 +0100
commit2d78eb0342dd2c9c5cde9ae9ada1d33f189a858b (patch)
treef711bc9cab45f4963e4883ef15ff4c54a6cbc12e /arch/x86/kernel/cpu/sgx/ioctl.c
parentb47068b4aa53a57552398e3f60d0ed1918700c2b (diff)
parentee0b089d660021792e4ab4dda191b097ce1e964f (diff)
Merge branch 'for-next' into for-linus
Diffstat (limited to 'arch/x86/kernel/cpu/sgx/ioctl.c')
-rw-r--r--arch/x86/kernel/cpu/sgx/ioctl.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/sgx/ioctl.c b/arch/x86/kernel/cpu/sgx/ioctl.c
index ebe79d60619f..da8b8ea6b063 100644
--- a/arch/x86/kernel/cpu/sgx/ioctl.c
+++ b/arch/x86/kernel/cpu/sgx/ioctl.c
@@ -356,6 +356,9 @@ static int sgx_validate_offset_length(struct sgx_encl *encl,
if (!length || !IS_ALIGNED(length, PAGE_SIZE))
return -EINVAL;
+ if (offset + length < offset)
+ return -EINVAL;
+
if (offset + length - PAGE_SIZE >= encl->size)
return -EINVAL;