{"id":"CVE-2024-43873","summary":"vhost/vsock: always initialize seqpacket_allow","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost/vsock: always initialize seqpacket_allow\n\nThere are two issues around seqpacket_allow:\n1. seqpacket_allow is not initialized when socket is\n   created. Thus if features are never set, it will be\n   read uninitialized.\n2. if VIRTIO_VSOCK_F_SEQPACKET is set and then cleared,\n   then seqpacket_allow will not be cleared appropriately\n   (existing apps I know about don't usually do this but\n    it's legal and there's no way to be sure no one relies\n    on this).\n\nTo fix:\n\t- initialize seqpacket_allow after allocation\n\t- set it unconditionally in set_features","modified":"2026-04-16T04:34:03.772134195Z","published":"2024-08-21T00:06:25.114Z","related":["SUSE-SU-2024:3190-1","SUSE-SU-2024:3194-1","SUSE-SU-2024:3195-1","SUSE-SU-2024:3209-1","SUSE-SU-2024:3383-1","SUSE-SU-2024:3483-1","SUSE-SU-2025:20044-1","SUSE-SU-2025:20047-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43873.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1e1fdcbdde3b7663e5d8faeb2245b9b151417d22"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3062cb100787a9ddf45de30004b962035cd497fb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/30bd4593669443ac58515e23557dc8cef70d8582"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ea558f10fb05a6503c6e655a1b7d81fdf8e5924c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eab96e8716cbfc2834b54f71cc9501ad4eec963b"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43873.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43873"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ced7b713711fdd8f99d8d04dc53451441d194c60"},{"fixed":"ea558f10fb05a6503c6e655a1b7d81fdf8e5924c"},{"fixed":"3062cb100787a9ddf45de30004b962035cd497fb"},{"fixed":"30bd4593669443ac58515e23557dc8cef70d8582"},{"fixed":"eab96e8716cbfc2834b54f71cc9501ad4eec963b"},{"fixed":"1e1fdcbdde3b7663e5d8faeb2245b9b151417d22"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-43873.json"}}],"schema_version":"1.7.5"}