{"id":"CVE-2026-68331","state":"PUBLISHED","title":"dpaa2-eth: put MAC endpoint device on disconnect","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-eth: 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 Ethernet connect path stores that\ndevice in mac->mc_dev and keeps it for the lifetime of the connected MAC\nobject.\n\nHowever, the disconnect path only disconnects and closes the MAC before\nfreeing the dpaa2_mac object. It does not drop the endpoint device\nreference stored in mac->mc_dev, so every successful connect leaks that\ndevice reference when the MAC is later disconnected.\n\nDrop the endpoint device reference after closing the MAC and before\nfreeing the dpaa2_mac object.","publishedAt":"2026-08-10T12:03:07.529Z","updatedAt":"2026-08-19T16:33:28.174Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"1974127776da46a000c61f36d4946799ea6d4f51","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"915012e923316b8b5d5bf8fc771617b47bd7572d","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"e23e4a3b9dfd893469c731318d409cdf04fb1ddf","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"f112df0744e2d77baa68eeebb860021bbaaa022a","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"a3cecf169cc652b558d08661bb6ce55e4c933ec0","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"b4b201cc93ff70150853aba03e14d314d1980ca0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","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-eth.c"]}],"references":["https://git.kernel.org/stable/c/6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1","https://git.kernel.org/stable/c/1974127776da46a000c61f36d4946799ea6d4f51","https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d","https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf","https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a","https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0","https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68331.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68331","state":"PUBLISHED","datePublished":"2026-08-10T12:03:07.529Z","dateUpdated":"2026-08-19T16:33:28.174Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.383Z"},"containers":{"cna":{"title":"dpaa2-eth: put MAC endpoint device on disconnect","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-eth: 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 Ethernet connect path stores that\ndevice in mac->mc_dev and keeps it for the lifetime of the connected MAC\nobject.\n\nHowever, the disconnect path only disconnects and closes the MAC before\nfreeing the dpaa2_mac object. It does not drop the endpoint device\nreference stored in mac->mc_dev, so every successful connect leaks that\ndevice reference when the MAC is later disconnected.\n\nDrop the endpoint device reference after closing the MAC and before\nfreeing the dpaa2_mac object."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"1974127776da46a000c61f36d4946799ea6d4f51","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"915012e923316b8b5d5bf8fc771617b47bd7572d","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"e23e4a3b9dfd893469c731318d409cdf04fb1ddf","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"f112df0744e2d77baa68eeebb860021bbaaa022a","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"a3cecf169cc652b558d08661bb6ce55e4c933ec0","versionType":"git"},{"version":"71947923089353f23f4f210864903c4dcf2c1696","status":"affected","lessThan":"b4b201cc93ff70150853aba03e14d314d1980ca0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","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-eth.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1"},{"url":"https://git.kernel.org/stable/c/1974127776da46a000c61f36d4946799ea6d4f51"},{"url":"https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d"},{"url":"https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf"},{"url":"https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a"},{"url":"https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0"},{"url":"https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-19T16:33:28.174Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.15.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.1.183"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}