CVE-2026-74565
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: make nft_object rhltable per table The nft_object rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nft_obj_destroy() releases the object inmediately, this might lead to use-after-free of these objects that are being released. Make the existing rhltable per table to address this issue to deal with with the nft_rcv_nl_event() path too. Update nft_obj_lookup() to take the table as non-const, otherwise, compiler complains when passing the objname_ht to rhltable_lookup().
Affected versions
Linux kernel versions
5.1
and later are affected. Fixed in
6.12.103,
6.18.44,
7.1.8,
7.2-rc6
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-74565?
CVE-2026-74565 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.1 onward and has been patched in 6.12.103, 6.18.44, 7.1.8 and others. CVE-2026-74565 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74565?
Yes. CVE-2026-74565 has been patched. Fixed versions include 6.12.103, 6.18.44, 7.1.8 and others. If you are running Linux kernel 5.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74565 actively exploited?
No. CVE-2026-74565 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.