CVE-2026-23412High· 7.8▾ TwilightIn 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:…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.1%
Last analysed / modified upstream
0.1% → 0.2%
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.
Linux >= 84601d6ee68ae820dec97450934797046d62db4b < d016c216bc75c45128160593a77b864a04dbe7c0Linux >= 84601d6ee68ae820dec97450934797046d62db4b < cb2bf5efdb02a2a59faf603604a1066e8266f349Linux >= 84601d6ee68ae820dec97450934797046d62db4b < c25e0dec366ae99b7264324ce3c7cbaea34691f9Linux >= 84601d6ee68ae820dec97450934797046d62db4b < 54244d54a971c26a0cd0a9073460ff71f3c51b32Linux >= 84601d6ee68ae820dec97450934797046d62db4b < 24f90fa3994b992d1a09003a3db2599330a5232aLinux 6.4Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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