{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64078","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T07:54:57.031Z","datePublished":"2026-07-19T15:39:51.582Z","dateUpdated":"2026-07-20T13:43:05.475Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-20T13:43:05.475Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: x_tables: add and use xtables_unregister_table_exit\n\nPrevious change added xtables_unregister_table_pre_exit to detach the\ntable from the packetpath and to unlink it from the active table list.\nIn case of rmmod, userspace that is doing set/getsockopt for this table\nwill not be able to re-instantiate the table:\n 1. The larval table has been removed already\n 2. existing instantiated table is no longer on the xt pernet table list.\n\nThis adds the second stage helper:\n\nunlink the table from the dying list, free the hook ops (if any) and do\nthe audit notification.  It replaces xt_unregister_table()."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/netfilter/x_tables.h","net/ipv4/netfilter/arp_tables.c","net/ipv4/netfilter/ip_tables.c","net/ipv4/netfilter/iptable_nat.c","net/ipv6/netfilter/ip6_tables.c","net/ipv6/netfilter/ip6table_nat.c","net/netfilter/x_tables.c"],"versions":[{"version":"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1","lessThan":"86ee5bc9c0f0e652e19f395675a432de11b75514","status":"affected","versionType":"git"},{"version":"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1","lessThan":"8026e5163cca1d1db436c7bfb89ddea8b5e8c2cf","status":"affected","versionType":"git"},{"version":"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1","lessThan":"b4597d5fd7d2f8cebfffd40dffb5e003cc78964c","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/netfilter/x_tables.h","net/ipv4/netfilter/arp_tables.c","net/ipv4/netfilter/ip_tables.c","net/ipv4/netfilter/iptable_nat.c","net/ipv6/netfilter/ip6_tables.c","net/ipv6/netfilter/ip6table_nat.c","net/netfilter/x_tables.c"],"versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","status":"unaffected","versionType":"semver"},{"version":"6.18.34","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.11","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.18.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.0.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/86ee5bc9c0f0e652e19f395675a432de11b75514"},{"url":"https://git.kernel.org/stable/c/8026e5163cca1d1db436c7bfb89ddea8b5e8c2cf"},{"url":"https://git.kernel.org/stable/c/b4597d5fd7d2f8cebfffd40dffb5e003cc78964c"}],"title":"netfilter: x_tables: add and use xtables_unregister_table_exit","x_generator":{"engine":"bippy-1.2.0"}}}}