cve/published/2024/CVE-2024-49979.json

{
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         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: gso: fix tcp fraglist segmentation after pull from frag_list\n\nDetect tcp gso fraglist skbs with corrupted geometry (see below) and\npass these to skb_segment instead of skb_segment_list, as the first\ncan segment them correctly.\n\nValid SKB_GSO_FRAGLIST skbs\n- consist of two or more segments\n- the head_skb holds the protocol headers plus first gso_size\n- one or more frag_list skbs hold exactly one segment\n- all but the last must be gso_size\n\nOptional datapath hooks such as NAT and BPF (bpf_skb_pull_data) can\nmodify these skbs, breaking these invariants.\n\nIn extreme cases they pull all data into skb linear. For TCP, this\ncauses a NULL ptr deref in __tcpv4_gso_segment_list_csum at\ntcp_hdr(seg->next).\n\nDetect invalid geometry due to pull, by checking head_skb size.\nDon't just drop, as this may blackhole a destination. Convert to be\nable to pass to regular skb_segment.\n\nApproach and description based on a patch by Willem de Bruijn."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/ipv4/tcp_offload.c",
                  "net/ipv6/tcpv6_offload.c"
               ],
               "versions": [
                  {
                     "version": "bee88cd5bd83d40b8aec4d6cb729378f707f6197",
                     "lessThan": "3fdd8c83e83fa5e82f1b5585245c51e0355c9f46",
                     "status": "affected",
                     "versionType": "git"
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                     "lessThan": "2d4a83a44428de45bfe9dccb0192a3711d1097e0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "bee88cd5bd83d40b8aec4d6cb729378f707f6197",
                     "lessThan": "17bd3bd82f9f79f3feba15476c2b2c95a9b11ff8",
                     "status": "affected",
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                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/ipv4/tcp_offload.c",
                  "net/ipv6/tcpv6_offload.c"
               ],
               "versions": [
                  {
                     "version": "6.10",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.10",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.10.14",
                     "lessThanOrEqual": "6.10.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.11.3",
                     "lessThanOrEqual": "6.11.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.12",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
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                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.10",
                           "versionEndExcluding": "6.10.14"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.10",
                           "versionEndExcluding": "6.11.3"
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                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "6.10",
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         "references": [
            {
               "url": "https://git.kernel.org/stable/c/3fdd8c83e83fa5e82f1b5585245c51e0355c9f46"
            },
            {
               "url": "https://git.kernel.org/stable/c/2d4a83a44428de45bfe9dccb0192a3711d1097e0"
            },
            {
               "url": "https://git.kernel.org/stable/c/17bd3bd82f9f79f3feba15476c2b2c95a9b11ff8"
            }
         ],
         "title": "net: gso: fix tcp fraglist segmentation after pull from frag_list",
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   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-49979",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
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