In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for accessing waker_bfqq after splitting After commit 42c306ed7233 ("block, bfq: don't break merge chain in b…
High CVSS 7.8
Summary
In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for accessing waker_bfqq after splitting After commit 42c306ed7233 ("block, bfq: don't break merge chain in bfq_split_bfqq()"), if the current procress is the last holder of bfqq, the bfqq can be freed after bfq_split_bfqq(). Hence recored the bfqq and then access bfqq->waker_bfqq may trigger UAF. What's more, the waker_bfqq may in the merge chain of bfqq, hence just recored waker_bfqq is still not safe. …
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://git.kernel.org/stable/c/0780451f03bf518bc032a7c584de8f92e2d39d7f Patch
- https://git.kernel.org/stable/c/0b8bda0ff17156cd3f60944527c9d8c9f99f1583 Patch
- https://git.kernel.org/stable/c/1ba0403ac6447f2d63914fb760c44a3b19c44eaf Patch
- https://git.kernel.org/stable/c/63a07379fdb6c72450cb05294461c6016b8b7726 Patch
- https://git.kernel.org/stable/c/cae58d19121a70329cf971359e2518c93fec04fe Patch
- https://git.kernel.org/stable/c/de0456460f2abf921e356ed2bd8da87a376680bd Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Timeline
- nvd_ingest NVD