{"id":"CVE-2022-48748","state":"PUBLISHED","title":"net: bridge: vlan: fix memory leak in __allowed_ingress","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: vlan: fix memory leak in __allowed_ingress\n\nWhen using per-vlan state, if vlan snooping and stats are disabled,\nuntagged or priority-tagged ingress frame will go to check pvid state.\nIf the port state is forwarding and the pvid state is not\nlearning/forwarding, untagged or priority-tagged frame will be dropped\nbut skb memory is not freed.\nShould free skb when __allowed_ingress returns false.","publishedAt":"2024-06-20T11:13:30.612Z","updatedAt":"2026-05-11T18:46:10.125Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a580c76d534c7360ba68042b19cb255e8420e987","status":"affected","lessThan":"446ff1fc37c74093e81db40811a07b5a19f1d797","versionType":"git"},{"version":"a580c76d534c7360ba68042b19cb255e8420e987","status":"affected","lessThan":"c5e216e880fa6f2cd9d4a6541269377657163098","versionType":"git"},{"version":"a580c76d534c7360ba68042b19cb255e8420e987","status":"affected","lessThan":"14be8d448fca6fe7b2a413831eedd55aef6c6511","versionType":"git"},{"version":"a580c76d534c7360ba68042b19cb255e8420e987","status":"affected","lessThan":"fd20d9738395cf8e27d0a17eba34169699fccdff","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bridge/br_vlan.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.6","versionType":"semver"},{"version":"5.10.96","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.19","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.5","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bridge/br_vlan.c"]}],"references":["https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797","https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098","https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511","https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/48xxx/CVE-2022-48748.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-48748","state":"PUBLISHED","datePublished":"2024-06-20T11:13:30.612Z","dateUpdated":"2026-05-11T18:46:10.125Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-06-20T11:09:39.055Z"},"containers":{"cna":{"title":"net: bridge: vlan: fix memory leak in __allowed_ingress","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: vlan: fix memory leak in __allowed_ingress\n\nWhen using per-vlan state, if vlan snooping and stats are disabled,\nuntagged or priority-tagged ingress frame will go to check pvid state.\nIf the port state is forwarding and the pvid state is not\nlearning/forwarding, untagged or priority-tagged frame will be dropped\nbut skb memory is not freed.\nShould free skb when __allowed_ingress returns 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