[SECURITY] media: ov519: add missing endpoint sanity checks (CVE-2020-11608)#136
Open
Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
Open
[SECURITY] media: ov519: add missing endpoint sanity checks (CVE-2020-11608)#136Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
Conversation
meta-cla
bot
added
the
CLA Signed
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Fix CVE-2020-11608.
Upstream commit: 998912346c0da53a6dbb71fab3a138586b596b30
The gspca ov519 (OV51x) USB camera driver accessed altsetting endpoint[0]
during stream start without first verifying that the interface provides at
least one endpoint. A crafted/malicious device descriptor can therefore
trigger a NULL pointer dereference and crash the kernel (DoS).
Add explicit bNumEndpoints sanity checks before accessing the endpoint array.
Reference: CVE-2020-11608