In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc As described in Gerrard's report [1], we have a UAF c…
High CVSS 7.8
Summary
In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc As described in Gerrard's report [1], we have a UAF case when an hfsc class has a netem child qdisc. The crux of the issue is that hfsc is assuming that checking for cl->qdisc->q.qlen == 0 guarantees that it hasn't inserted the class in the vttree or eltree (which is not true for the netem duplicate case). This patch checks the n_active class variabl…
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/141d34391abbb315d68556b7c67ad97885407547 Patch
- https://git.kernel.org/stable/c/273bbcfa53541cde38b2003ad88a59b770306421 Patch
- https://git.kernel.org/stable/c/2e7093c7a8aba5d4f8809f271488e5babe75e202 Patch
- https://git.kernel.org/stable/c/6082a87af4c52f58150d40dec1716011d871ac21 Patch
- https://git.kernel.org/stable/c/8df7d37d626430035b413b97cee18396b3450bef Patch
- https://git.kernel.org/stable/c/ac39fd4a757584d78ed062d4f6fd913f83bd98b5 Patch
- https://git.kernel.org/stable/c/e0cf8ee23e1915431f262a7b2dee0c7a7d699af0 Patch
- https://git.kernel.org/stable/c/e3e949a39a91d1f829a4890e7dfe9417ac72e4d0 Patch
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html Mailing List
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Mailing List
Timeline
- nvd_ingest NVD