{ "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 \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 [] kmem_cache_alloc_trace+0x1c7/0x300\n [] macvlan_hash_add_source+0x45/0xc0\n [] macvlan_changelink_sources+0xd7/0x170\n [] macvlan_common_newlink+0x38c/0x5a0\n [] macvlan_newlink+0xe/0x20\n [] __rtnl_newlink+0x7af/0xa50\n [] 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" } } ] } }