{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: prefer nft_chain_validate\n\nnft_chain_validate already performs loop detection because a cycle will\nresult in a call stack overflow (ctx->level >= NFT_JUMP_STACK_SIZE).\n\nIt also follows maps via ->validate callback in nft_lookup, so there\nappears no reason to iterate the maps again.\n\nnf_tables_check_loops() and all its helper functions can be removed.\nThis improves ruleset load time significantly, from 23s down to 12s.\n\nThis also fixes a crash bug. Old loop detection code can result in\nunbounded recursion:\n\nBUG: TASK stack guard page was hit at ....\nOops: stack guard page: 0000 [#1] PREEMPT SMP KASAN\nCPU: 4 PID: 1539 Comm: nft Not tainted 6.10.0-rc5+ #1\n[..]\n\nwith a suitable ruleset during validation of register stores.\n\nI can't see any actual reason to attempt to check for this from\nnft_validate_register_store(), at this point the transaction is still in\nprogress, so we don't have a full picture of the rule graph.\n\nFor nf-next it might make sense to either remove it or make this depend\non table->validate_state in case we could catch an error earlier\n(for improved error reporting to userspace)."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/netfilter/nf_tables_api.c"
               ],
               "versions": [
                  {
                     "version": "20a69341f2d0",
                     "lessThan": "1947e4c3346f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "20a69341f2d0",
                     "lessThan": "cd4348e0a502",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "20a69341f2d0",
                     "lessThan": "31c35f9f89ef",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "20a69341f2d0",
                     "lessThan": "8246b7466c8d",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "20a69341f2d0",
                     "lessThan": "b6b6e430470e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "20a69341f2d0",
                     "lessThan": "717c91c6ed73",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "20a69341f2d0",
                     "lessThan": "9df785aeb7dc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "20a69341f2d0",
                     "lessThan": "cff3bd012a95",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/netfilter/nf_tables_api.c"
               ],
               "versions": [
                  {
                     "version": "3.13",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "3.13",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.320",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.282",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.224",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.165",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.105",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.46",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9.10",
                     "lessThanOrEqual": "6.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.10",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/1947e4c3346faa8ac7e343652c0fd3b3e394202f"
            },
            {
               "url": "https://git.kernel.org/stable/c/cd4348e0a50286282c314ad6d2b0740e7c812c24"
            },
            {
               "url": "https://git.kernel.org/stable/c/31c35f9f89ef585f1edb53e17ac73a0ca4a9712b"
            },
            {
               "url": "https://git.kernel.org/stable/c/8246b7466c8da49d0d9e85e26cbd69dd6d3e3d1e"
            },
            {
               "url": "https://git.kernel.org/stable/c/b6b6e430470e1c3c5513311cb35a15a205595abe"
            },
            {
               "url": "https://git.kernel.org/stable/c/717c91c6ed73e248de6a15bc53adefb81446c9d0"
            },
            {
               "url": "https://git.kernel.org/stable/c/9df785aeb7dcc8efd1d4110bb27d26005298ebae"
            },
            {
               "url": "https://git.kernel.org/stable/c/cff3bd012a9512ac5ed858d38e6ed65f6391008c"
            }
         ],
         "title": "netfilter: nf_tables: prefer nft_chain_validate",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-41042",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}