CVE-2026-43024

Summary

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: reject immediate NF_QUEUE verdict

nft_queue is always used from userspace nftables to deliver the NF_QUEUE verdict. Immediately emitting an NF_QUEUE verdict is never used by the userspace nft tools, so reject immediate NF_QUEUE verdicts.

The arp family does not provide queue support, but such an immediate verdict is still reachable. Globally reject NF_QUEUE immediate verdicts to address this issue.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux55a60251fa50d4e68175e36666b536a602ce4f6c < 2f7f825a548be55420f0f5f716f6c27b9d312d3faffected
LinuxLinux960cf4f812530f01f6acc6878ceaa5404c06af7b < f140593901724cfbd16597c3a4fcb24a58ae44b0affected
LinuxLinux8e34430e33b8a80bc014f3efe29cac76bc30a4b4 < 68390437a998c3f2c57212b413abef5e6d657d88affected
LinuxLinux6653118b176a00915125521c6572ae8e507621db < 4b12a3cc3f075e750cc3c5e693fd25fb400af4a2affected
LinuxLinuxf342de4e2f33e0e39165d8639387aa6c19dff660 < f710691be163ae6b39e4bcab9e5be32d329f035baffected
LinuxLinuxf342de4e2f33e0e39165d8639387aa6c19dff660 < 42a47f4b1b7695026ab9bc1bb35d4622b0835c95affected
LinuxLinuxf342de4e2f33e0e39165d8639387aa6c19dff660 < 17dc5d5a935c771338430cbc156a16a51cfd31e8affected
LinuxLinuxf342de4e2f33e0e39165d8639387aa6c19dff660 < da107398cbd4bbdb6bffecb2ce86d5c9384f4cecaffected
LinuxLinux8365e9d92b85fda975a5ece7a3a139cb964018c8affected
LinuxLinux4e66422f1b56149761dc76030e6345d1cca6f869affected
LinuxLinuxf05a497e7bc8851eeeb3a58da180ba469efebb05affected
LinuxLinux5.10.210 < 5.10.253affected
LinuxLinux5.15.149 < 5.15.203affected
LinuxLinux6.1.76 < 6.1.168affected
LinuxLinux6.6.15 < 6.6.134affected
LinuxLinux4.19.307 < 4.20affected
LinuxLinux5.4.269 < 5.5affected
LinuxLinux6.7.3 < 6.8affected
LinuxLinux6.8affected
LinuxLinux0 < 6.8unaffected
LinuxLinux5.10.253 <= 5.10.*unaffected
LinuxLinux5.15.203 <= 5.15.*unaffected
LinuxLinux6.1.168 <= 6.1.*unaffected
LinuxLinux6.6.134 <= 6.6.*unaffected
LinuxLinux6.12.81 <= 6.12.*unaffected
LinuxLinux6.18.22 <= 6.18.*unaffected
LinuxLinux6.19.12 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References