{"id":"CVE-2026-68333","state":"PUBLISHED","title":"dpaa2-switch: put MAC endpoint device on disconnect","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: put MAC endpoint device on disconnect\n\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The switch port connect path stores\nthat device in mac->mc_dev and keeps it for the lifetime of the connected\nMAC object.\n\nHowever, the disconnect path only closes the MAC and frees the dpaa2_mac\nobject. It does not drop the endpoint device reference stored in\nmac->mc_dev, so every successful connect leaks that device reference when\nthe MAC is later disconnected.\n\nDrop the endpoint device reference before freeing the dpaa2_mac object.","publishedAt":"2026-08-10T12:03:09.524Z","updatedAt":"2026-08-19T16:33:30.627Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"196f7301537814bef0f5915f87cd73d6d1235c19","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"0e9a6811eb6198ab17538cd01fa155d133b238ed","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"680eecc850d36a280df9780496bc603fec17b2d6","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"26ac2d3602347f0377fbcd5214bc28a9d735ae68","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"c27694ff6748e08fcd2fdba89018439d75b8198f","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"4c1eabbef7a1707635652e956e39db1269c3af2b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"]}],"references":["https://git.kernel.org/stable/c/196f7301537814bef0f5915f87cd73d6d1235c19","https://git.kernel.org/stable/c/0e9a6811eb6198ab17538cd01fa155d133b238ed","https://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38","https://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6","https://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68","https://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f","https://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68333.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68333","state":"PUBLISHED","datePublished":"2026-08-10T12:03:09.524Z","dateUpdated":"2026-08-19T16:33:30.627Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.383Z"},"containers":{"cna":{"title":"dpaa2-switch: put MAC endpoint device on disconnect","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: put MAC endpoint device on disconnect\n\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The switch port connect path stores\nthat device in mac->mc_dev and keeps it for the lifetime of the connected\nMAC object.\n\nHowever, the disconnect path only closes the MAC and frees the dpaa2_mac\nobject. It does not drop the endpoint device reference stored in\nmac->mc_dev, so every successful connect leaks that device reference when\nthe MAC is later disconnected.\n\nDrop the endpoint device reference before freeing the dpaa2_mac object."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"196f7301537814bef0f5915f87cd73d6d1235c19","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"0e9a6811eb6198ab17538cd01fa155d133b238ed","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"680eecc850d36a280df9780496bc603fec17b2d6","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"26ac2d3602347f0377fbcd5214bc28a9d735ae68","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"c27694ff6748e08fcd2fdba89018439d75b8198f","versionType":"git"},{"version":"84cba72956fddf29ba666f885c39ed147024c125","status":"affected","lessThan":"4c1eabbef7a1707635652e956e39db1269c3af2b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/196f7301537814bef0f5915f87cd73d6d1235c19"},{"url":"https://git.kernel.org/stable/c/0e9a6811eb6198ab17538cd01fa155d133b238ed"},{"url":"https://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38"},{"url":"https://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6"},{"url":"https://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68"},{"url":"https://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f"},{"url":"https://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-19T16:33:30.627Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.183"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}