Fix bug check in timer management routines #70
Merged
Conversation
This file contains 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
Commit b750b2c ("timer: refactor timers implementation") has changed timer initialization logic and introduced a bug, where calling SET_PEER ioctl after failed NEW_PEER ioctl causes WDF_VIOLATION bug check, because we try to get a context of a WDF object which is NULL. Fix by adding NULL checks. Note that this is not expected to happen with openvpn as a driver client. CVE: 2024-5198 Reported-By: Lukas Jokubauskas <lukas.jokubauskas@nordsec.com> Signed-off-by: Lev Stipakov <lev@openvpn.net>
sprintnudel
approved these changes
May 23, 2024
d12fk
approved these changes
May 23, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Commit b750b2c ("timer: refactor timers implementation") has changed timer initialization logic and introduced a bug, where calling SET_PEER ioctl after failed NEW_PEER ioctl causes WDF_VIOLATION bug check, because we try to get a context of a WDF object which is NULL.
Fix by adding NULL checks.
Note that this is not expected to happen with openvpn as a driver client.
CVE: 2024-5198
Reported-By: Lukas Jokubauskas lukas.jokubauskas@nordsec.com