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MediumFix available

net: remove two BUG() from skb_checksum_help()

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: net: remove two BUG() from skb_checksum_help() I have a syzbot report that managed to get a crash in skb_checksum_help() If syzbot can trigger these BUG(), it makes sense to replace them with more friendly WARN_ON_ONCE() since skb_checksum_help() can instead return an error code. Note that syzbot will still crash there, until real bug is fixed.

Products
Kernel
Affected versions
Not specified
Fixed versions
5.10.121, 5.15.46, 5.17.14, 5.18.3
CVEs
CVE-2022-49497
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 03:41 UTC · Revision 1

Source evidence

net: remove two BUG() from skb_checksum_help()

core-osv · Original source

Published 26 Feb 2025, 02:13 UTC

In the Linux kernel, the following vulnerability has been resolved: net: remove two BUG() from skb_checksum_help() I have a syzbot report that managed to get a crash in skb_checksum_help() If syzbot can trigger these BUG(), it makes sense to replace them with more friendly WARN_ON_ONCE() since skb_checksum_help() can instead return an error code. Note that syzbot will still crash there, until real bug is fixed.

osv:CVE-2022-49497

Kernel

Fixed versions: 5.10.121, 5.15.46, 5.17.14, 5.18.3

Complete source record
{
  "id": "598af36ed4417ebfc4fa9c01349a13c610cf9d9e96cd211a18dd5d9d03049a32",
  "url": "https://osv.dev/vulnerability/CVE-2022-49497",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: remove two BUG() from skb_checksum_help()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: remove two BUG() from skb_checksum_help() I have a syzbot report that managed to get a crash in skb_checksum_help() If syzbot can trigger these BUG(), it makes sense to replace them with more friendly WARN_ON_ONCE() since skb_checksum_help() can instead return an error code. Note that syzbot will still crash there, until real bug is fixed.",
    "evidence": "osv:CVE-2022-49497",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.121",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.46",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.17.14",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-49497",
      "aliases": [
        "CVE-2022-49497"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a030847e9f0eed2a080f6114381c649a7aa43d25"
                },
                {
                  "fixed": "312c43e98ed190bd8fd7a71a0addf9539d5b8ab1"
                },
                {
                  "fixed": "6320ae1b5876c30bf98203b6a5abe8b5c45e6a04"
                },
                {
                  "fixed": "d5281245f3502e960cb6b89348767b935379cee3"
                },
                {
                  "fixed": "b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73"
                },
                {
                  "fixed": "d7ea0d9df2a6265b2b180d17ebc64b38105968fc"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49497.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.24"
                },
                {
                  "fixed": "5.10.121"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.46"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.17.14"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "5.18.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49497.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.721850587Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/312c43e98ed190bd8fd7a71a0addf9539d5b8ab1",
        "https://git.kernel.org/stable/c/6320ae1b5876c30bf98203b6a5abe8b5c45e6a04",
        "https://git.kernel.org/stable/c/b1320c9a4d30ff54b824a8ad6036e0b5fb4c5e73",
        "https://git.kernel.org/stable/c/d5281245f3502e960cb6b89348767b935379cee3",
        "https://git.kernel.org/stable/c/d7ea0d9df2a6265b2b180d17ebc64b38105968fc",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49497.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49497",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49497.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49497",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492243,
  "published_at": "2025-02-26T02:13:32.208+00:00"
}