Tracker / CVE-2026-23412
CVE-2026-23412
High 7.8
In the Linux kernel, the following vulnerability has been resolved: netfilter: bpf: defer hook memory release until rcu readers are done Yiming Qian reports UaF when concurrent process is dumping hooks via nfnetlink_hooks: BUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0 Read of size 8 at addr ffff888003edbf88 by task poc/79 Call Trace: <TASK> nfnl_hook_dump_one.isra.0+0xe71/0x10f0 netlink_dump+0x554/0x12b0 nfnl_hook_get+0x176/0x230 [..] Defer release until after concurrent readers have completed.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 6.13 → 6.18.20 |
| linux | linux_kernel · 6.19 → 6.19.10 |
| linux | linux_kernel · 6.4.1 → 6.6.130 |
| linux | linux_kernel · 6.7 → 6.12.78 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.