{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49853","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-05-01T14:05:17.230Z","datePublished":"2025-05-01T14:10:07.726Z","dateUpdated":"2026-05-11T19:08:01.634Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:08:01.634Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macvlan: fix memory leaks of macvlan_common_newlink\n\nkmemleak reports memory leaks in macvlan_common_newlink, as follows:\n\n ip link add link eth0 name .. type macvlan mode source macaddr add\n <MAC-ADDR>\n\nkmemleak reports:\n\nunreferenced object 0xffff8880109bb140 (size 64):\n  comm \"ip\", pid 284, jiffies 4294986150 (age 430.108s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 b8 aa 5a 12 80 88 ff ff  ..........Z.....\n    80 1b fa 0d 80 88 ff ff 1e ff ac af c7 c1 6b 6b  ..............kk\n  backtrace:\n    [<ffffffff813e06a7>] kmem_cache_alloc_trace+0x1c7/0x300\n    [<ffffffff81b66025>] macvlan_hash_add_source+0x45/0xc0\n    [<ffffffff81b66a67>] macvlan_changelink_sources+0xd7/0x170\n    [<ffffffff81b6775c>] macvlan_common_newlink+0x38c/0x5a0\n    [<ffffffff81b6797e>] macvlan_newlink+0xe/0x20\n    [<ffffffff81d97f8f>] __rtnl_newlink+0x7af/0xa50\n    [<ffffffff81d98278>] rtnl_newlink+0x48/0x70\n    ...\n\nIn the scenario where the macvlan mode is configured as 'source',\nmacvlan_changelink_sources() will be execured to reconfigure list of\nremote source mac addresses, at the same time, if register_netdevice()\nreturn an error, the resource generated by macvlan_changelink_sources()\nis not cleaned up.\n\nUsing this patch, in the case of an error, it will execute\nmacvlan_flush_sources() to ensure that the resource is cleaned up."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/macvlan.c"],"versions":[{"version":"aa5fd0fb77486b8a6764ead8627baa14790e4280","lessThan":"9f288e338be206713d79b29144c27fca4503c39b","status":"affected","versionType":"git"},{"version":"aa5fd0fb77486b8a6764ead8627baa14790e4280","lessThan":"21d3a8b6a1e39e7529ce9de07316ee13a63f305b","status":"affected","versionType":"git"},{"version":"aa5fd0fb77486b8a6764ead8627baa14790e4280","lessThan":"a81b44d1df1f07f00c0dcc0a0b3d2fa24a46289e","status":"affected","versionType":"git"},{"version":"aa5fd0fb77486b8a6764ead8627baa14790e4280","lessThan":"685e73e3f7a9fb75cbf049a9d0b7c45cc6b57b2e","status":"affected","versionType":"git"},{"version":"aa5fd0fb77486b8a6764ead8627baa14790e4280","lessThan":"956e0216a19994443c90ba2ea6b0b284c9c4f9cb","status":"affected","versionType":"git"},{"version":"aa5fd0fb77486b8a6764ead8627baa14790e4280","lessThan":"a8d67367ab33604326cc37ab44fd1801bf5691ba","status":"affected","versionType":"git"},{"version":"aa5fd0fb77486b8a6764ead8627baa14790e4280","lessThan":"9ea003c4671b2fc455320ecf6d4a43b0a3c1878a","status":"affected","versionType":"git"},{"version":"aa5fd0fb77486b8a6764ead8627baa14790e4280","lessThan":"23569b5652ee8e8e55a12f7835f59af6f3cefc30","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/macvlan.c"],"versions":[{"version":"4.9","status":"affected"},{"version":"0","lessThan":"4.9","status":"unaffected","versionType":"semver"},{"version":"4.9.334","lessThanOrEqual":"4.9.*","status":"unaffected","versionType":"semver"},{"version":"4.14.300","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.267","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.225","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.155","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.79","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.0.9","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1","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":"4.9","versionEndExcluding":"4.9.334"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"4.14.300"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"4.19.267"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.4.225"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.10.155"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.15.79"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.0.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/9f288e338be206713d79b29144c27fca4503c39b"},{"url":"https://git.kernel.org/stable/c/21d3a8b6a1e39e7529ce9de07316ee13a63f305b"},{"url":"https://git.kernel.org/stable/c/a81b44d1df1f07f00c0dcc0a0b3d2fa24a46289e"},{"url":"https://git.kernel.org/stable/c/685e73e3f7a9fb75cbf049a9d0b7c45cc6b57b2e"},{"url":"https://git.kernel.org/stable/c/956e0216a19994443c90ba2ea6b0b284c9c4f9cb"},{"url":"https://git.kernel.org/stable/c/a8d67367ab33604326cc37ab44fd1801bf5691ba"},{"url":"https://git.kernel.org/stable/c/9ea003c4671b2fc455320ecf6d4a43b0a3c1878a"},{"url":"https://git.kernel.org/stable/c/23569b5652ee8e8e55a12f7835f59af6f3cefc30"}],"title":"net: macvlan: fix memory leaks of macvlan_common_newlink","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-401","lang":"en","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-10-01T16:07:26.571927Z","id":"CVE-2022-49853","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T16:07:29.375Z"}}]}}