{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "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->parent 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."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/ethernet/mellanox/mlx5/core/fs_core.c"
               ],
               "versions": [
                  {
                     "version": "74491de93712",
                     "lessThan": "de0139719cdd",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74491de93712",
                     "lessThan": "1263b0b26077",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74491de93712",
                     "lessThan": "3d90ca9145f6",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74491de93712",
                     "lessThan": "7aaee12b804c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74491de93712",
                     "lessThan": "2e8dc5cffc84",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74491de93712",
                     "lessThan": "5cf5337ef701",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74491de93712",
                     "lessThan": "adf67a03af39",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "74491de93712",
                     "lessThan": "7c6782ad4911",
                     "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/ethernet/mellanox/mlx5/core/fs_core.c"
               ],
               "versions": [
                  {
                     "version": "4.10",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.10",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.313",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.275",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.216",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.156",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.87",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.28",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.7",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/de0139719cdda82806a47580ca0df06fc85e0bd2"
            },
            {
               "url": "https://git.kernel.org/stable/c/1263b0b26077b1183c3c45a0a2479573a351d423"
            },
            {
               "url": "https://git.kernel.org/stable/c/3d90ca9145f6b97b38d0c2b6b30f6ca6af9c1801"
            },
            {
               "url": "https://git.kernel.org/stable/c/7aaee12b804c5e0374e7b132b6ec2158ff33dd64"
            },
            {
               "url": "https://git.kernel.org/stable/c/2e8dc5cffc844dacfa79f056dea88002312f253f"
            },
            {
               "url": "https://git.kernel.org/stable/c/5cf5337ef701830f173b4eec00a4f984adeb57a0"
            },
            {
               "url": "https://git.kernel.org/stable/c/adf67a03af39095f05d82050f15813d6f700159d"
            },
            {
               "url": "https://git.kernel.org/stable/c/7c6782ad4911cbee874e85630226ed389ff2e453"
            }
         ],
         "title": "net/mlx5: Properly link new fs rules into the tree",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-35960",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}