CVE-2026-98393Published

net: ipv4: Fix UDP length overflow with PMTU discover and big MTU

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-98393

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv4/ip_output.c"
                    ],
                    "versions": [
                        {
                            "version": "daba287b299ec7a2c61ae3a714920e90e8396ad5",
                            "lessThan": "83fedc4741210f75be8ca5b487985a242bf6f18d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "daba287b299ec7a2c61ae3a714920e90e8396ad5",
                            "lessThan": "81f540827d243b8dad76c1f44e70ea31719f393c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "daba287b299ec7a2c61ae3a714920e90e8396ad5",
                            "lessThan": "b83641e0ab8b20eefcc4cdc5a059f897375291a2",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv4/ip_output.c"
                    ],
                    "versions": [
                        {
                            "version": "3.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON