blk-cgroup: protect q->blkg_list iteration in blkg_destroy_all() with blkcg_mutex#991
Open
blktests-ci[bot] wants to merge 1 commit into
Open
blk-cgroup: protect q->blkg_list iteration in blkg_destroy_all() with blkcg_mutex#991blktests-ci[bot] wants to merge 1 commit into
blktests-ci[bot] wants to merge 1 commit into
Conversation
… blkcg_mutex blkg_destroy_all() iterates q->blkg_list without holding blkcg_mutex, which can race with blkg_free_workfn() that removes blkgs from the list while holding blkcg_mutex. Add blkcg_mutex protection around the q->blkg_list iteration to prevent potential list corruption or use-after-free issues. Reviewed-by: Tang Yizhou <yizhou.tang@shopee.com> Signed-off-by: Yu Kuai <yukuai@fygo.io>
Author
|
Upstream branch: bade58e |
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
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Pull request for series with
subject: blk-cgroup: protect q->blkg_list iteration in blkg_destroy_all() with blkcg_mutex
version: 2
url: https://patchwork.kernel.org/project/linux-block/list/?series=1115666