{"id":"CVE-2024-35960","summary":"net/mlx5: Properly link new fs rules into the tree","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Properly link new fs rules into the tree\n\nPreviously, add_rule_fg would only add newly created rules from the\nhandle into the tree when they had a refcount of 1. On the other hand,\ncreate_flow_handle tries hard to find and reference already existing\nidentical rules instead of creating new ones.\n\nThese two behaviors can result in a situation where create_flow_handle\n1) creates a new rule and references it, then\n2) in a subsequent step during the same handle creation references it\n   again,\nresulting in a rule with a refcount of 2 that is not linked into the\ntree, will have a NULL parent and root and will result in a crash when\nthe flow group is deleted because del_sw_hw_rule, invoked on rule\ndeletion, assumes node-\u003eparent is != NULL.\n\nThis happened in the wild, due to another bug related to incorrect\nhandling of duplicate pkt_reformat ids, which lead to the code in\ncreate_flow_handle incorrectly referencing a just-added rule in the same\nflow handle, resulting in the problem described above. Full details are\nat [1].\n\nThis patch changes add_rule_fg to add new rules without parents into\nthe tree, properly initializing them and avoiding the crash. This makes\nit more consistent with how rules are added to an FTE in\ncreate_flow_handle.","modified":"2026-04-02T11:53:25.622346Z","published":"2024-05-20T09:41:51.900Z","related":["ALSA-2024:4211","ALSA-2024:4349","ALSA-2024:4352","SUSE-SU-2024:2135-1","SUSE-SU-2024:2203-1","SUSE-SU-2024:2360-1","SUSE-SU-2024:2372-1","SUSE-SU-2024:2381-1","SUSE-SU-2024:2394-1","SUSE-SU-2024:2561-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20249-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35960.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1263b0b26077b1183c3c45a0a2479573a351d423"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2e8dc5cffc844dacfa79f056dea88002312f253f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3d90ca9145f6b97b38d0c2b6b30f6ca6af9c1801"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5cf5337ef701830f173b4eec00a4f984adeb57a0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7aaee12b804c5e0374e7b132b6ec2158ff33dd64"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7c6782ad4911cbee874e85630226ed389ff2e453"},{"type":"WEB","url":"https://git.kernel.org/stable/c/adf67a03af39095f05d82050f15813d6f700159d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/de0139719cdda82806a47580ca0df06fc85e0bd2"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35960.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-35960"},{"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":"74491de937125d0c98c9b9c9208b4105717a3caa"},{"fixed":"de0139719cdda82806a47580ca0df06fc85e0bd2"},{"fixed":"1263b0b26077b1183c3c45a0a2479573a351d423"},{"fixed":"3d90ca9145f6b97b38d0c2b6b30f6ca6af9c1801"},{"fixed":"7aaee12b804c5e0374e7b132b6ec2158ff33dd64"},{"fixed":"2e8dc5cffc844dacfa79f056dea88002312f253f"},{"fixed":"5cf5337ef701830f173b4eec00a4f984adeb57a0"},{"fixed":"adf67a03af39095f05d82050f15813d6f700159d"},{"fixed":"7c6782ad4911cbee874e85630226ed389ff2e453"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-35960.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"}]}