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TI-2026-34045 Aliases CVE-2026-46324GHSA-42p7-8g8p-r7fh

netfilter: nf_tables: use list_del_rcu for netlink hooks

Priority LOW 35CWE-362Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use list_del_rcu for netlink hooks nft_netdev_unregister_hooks and __nft_unregister_flowtable_net_hooks need to use list_del_rcu(), this list can be walked by concurrent dumpers. Add a new helper and use it consistently.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00125 2nd percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.20, 5.5, 5.11 +9Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.19.316 to before 4.20; 5.4.262 to before 5.5; 5.10.198 to before 5.11; 5.15.45 to before 5.16; 5.17.13 to before 5.18; 5.18.2 to before 5.194.20, 5.5, 5.11, 5.16, 5.18, 5.19Patch availableCNA
LinuxLinux5.19 and later6.1.191, 6.6.160, 6.12.114, 6.18.33, 7.0.10, 7.1Patch availableCNA
  • Linux VendorLinux Affected 4.19.316 to before 4.20; 5.4.262 to before 5.5; 5.10.198 to before 5.11; 5.15.45 to before 5.16; 5.17.13 to before 5.18; 5.18.2 to before 5.19 Fixed in 4.20, 5.5, 5.11, 5.16, 5.18, 5.19 Patch available CNA
  • Linux VendorLinux Affected 5.19 and later Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.33, 7.0.10, 7.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.19.316 to before 4.20; 5.4.262 to before 5.5; 5.10.198 to before 5.11; 5.15.45 to before 5.16; 5.17.13 to before 5.18; 5.18.2 to before 6.18.33; 6.19 to before 7.0.10VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*7.1 rc1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.19.316 to before 4.20; 5.4.262 to before 5.5; 5.10.198 to before 5.11; 5.15.45 to before 5.16; 5.17.13 to before 5.18; 5.18.2 to before 6.18.33; 6.19 to before 7.0.10 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.20, 5.5, 5.11, 5.16, 5.18, 5.19
  • Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.33, 7.0.10, 7.1

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Not affected: 2 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46324
  2. 2026-10-03 Alias added: GHSA-42p7-8g8p-r7fh
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-19 Weakness changed · CISA ADP
  5. 2026-10-21 Fix available: Linux/Linux@2405730fde96f7fa483a5862e323b681e0e09f54, Linux/[email protected], Linux/[email protected] +1 · CNA
  6. 2026-10-21 2 new references · CNA
  7. 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@6480ea533cedfbf79ea5a1f12c5f71d41484dd8a · CNA
  8. 2026-10-30 1 new reference · CNA
  9. 2026-11-04 CVSS score changed · Red Hat

References

Patch 3

Other 3

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences