{"id":"CVE-2026-53233","state":"PUBLISHED","title":"netdev: fix double-free in netdev_nl_bind_rx_doit()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetdev: fix double-free in netdev_nl_bind_rx_doit()\n\nSashiko flags that genlmsg_reply() always consumes the skb.\nThe error path calls nlmsg_free(rsp) so we can't jump directly\nto it. Let's not unbind, just propagate the error to the user.\nThis is the typical way of handling genlmsg_reply() failures.\nThey shouldn't happen unless user does something silly like\ncalling the kernel with an already-full rcvbuf.","publishedAt":"2026-06-25T08:39:31.191Z","updatedAt":"2026-06-25T08:39:31.191Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"170aafe35cb98e0f3fbacb446ea86389fbce22ea","status":"affected","lessThan":"e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599","versionType":"git"},{"version":"170aafe35cb98e0f3fbacb446ea86389fbce22ea","status":"affected","lessThan":"c299321bc6232770ce378d6fa6bc46004d2d7fdb","versionType":"git"},{"version":"170aafe35cb98e0f3fbacb446ea86389fbce22ea","status":"affected","lessThan":"9b019376cbee10c4f9184d1745fa37d156e36f30","versionType":"git"},{"version":"170aafe35cb98e0f3fbacb446ea86389fbce22ea","status":"affected","lessThan":"c849de7d8757a7af801fc4a4058f71d481d367f2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/netdev-genl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.94","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/netdev-genl.c"]}],"references":["https://git.kernel.org/stable/c/e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599","https://git.kernel.org/stable/c/c299321bc6232770ce378d6fa6bc46004d2d7fdb","https://git.kernel.org/stable/c/9b019376cbee10c4f9184d1745fa37d156e36f30","https://git.kernel.org/stable/c/c849de7d8757a7af801fc4a4058f71d481d367f2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53233.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53233","state":"PUBLISHED","datePublished":"2026-06-25T08:39:31.191Z","dateUpdated":"2026-06-25T08:39:31.191Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.393Z"},"containers":{"cna":{"title":"netdev: fix double-free in netdev_nl_bind_rx_doit()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetdev: fix double-free in netdev_nl_bind_rx_doit()\n\nSashiko flags that genlmsg_reply() always consumes the skb.\nThe error path calls nlmsg_free(rsp) so we can't jump directly\nto it. Let's not unbind, just propagate the error to the user.\nThis is the typical way of handling genlmsg_reply() failures.\nThey shouldn't happen unless user does something silly like\ncalling the kernel with an already-full rcvbuf."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"170aafe35cb98e0f3fbacb446ea86389fbce22ea","status":"affected","lessThan":"e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599","versionType":"git"},{"version":"170aafe35cb98e0f3fbacb446ea86389fbce22ea","status":"affected","lessThan":"c299321bc6232770ce378d6fa6bc46004d2d7fdb","versionType":"git"},{"version":"170aafe35cb98e0f3fbacb446ea86389fbce22ea","status":"affected","lessThan":"9b019376cbee10c4f9184d1745fa37d156e36f30","versionType":"git"},{"version":"170aafe35cb98e0f3fbacb446ea86389fbce22ea","status":"affected","lessThan":"c849de7d8757a7af801fc4a4058f71d481d367f2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/netdev-genl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.94","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/netdev-genl.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599"},{"url":"https://git.kernel.org/stable/c/c299321bc6232770ce378d6fa6bc46004d2d7fdb"},{"url":"https://git.kernel.org/stable/c/9b019376cbee10c4f9184d1745fa37d156e36f30"},{"url":"https://git.kernel.org/stable/c/c849de7d8757a7af801fc4a4058f71d481d367f2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-25T08:39:31.191Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}