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Vulnerability DatabaseCVE-2026-23412

CVE-2026-23412: 
Linux Kernel vulnerability analysis and mitigation

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: 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.

Source: NVD

Related Linux Kernel vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-23417N/AN/A
  • Linux KernelLinux Kernel
  • kernel-modules-core
NoNoApr 02, 2026
CVE-2026-23415N/AN/A
  • Linux KernelLinux Kernel
  • kernel-64k-debug-devel
NoNoApr 02, 2026
CVE-2026-23414N/AN/A
  • Linux KernelLinux Kernel
  • kernel-modules-extra-matched
NoYesApr 02, 2026
CVE-2026-23413N/AN/A
  • Linux KernelLinux Kernel
  • kernel-debug-core
NoYesApr 02, 2026
CVE-2026-23412N/AN/A
  • Linux KernelLinux Kernel
  • rv
NoYesApr 02, 2026

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