VDB

CVE-2026-23412

CVE-2026-23412 PUBLISHED

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.

EPSS 0.02% · 3.5th percentile

Risk Scores

EPSS Score
0.02%
3.5th percentile

Affected Products

VendorProductVersions
LinuxLinux*, 6.12.78, 6.18.20
linuxlinux_kernel6.4, 6.4, 6.4

Timeline

  • Apr 2, 2026 CVE Published
  • Apr 2, 2026 Security Advisory
  • Apr 27, 2026 CVE Updated
  • May 18, 2026 EPSS Score
  • May 19, 2026 EPSS Score
  • May 20, 2026 EPSS Score
  • May 21, 2026 EPSS Score
  • May 22, 2026 EPSS Score
  • May 23, 2026 EPSS Score
  • May 24, 2026 EPSS Score
  • May 25, 2026 EPSS Score
  • May 26, 2026 EPSS Score

References

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