CVE-2026-99139Published

tcp: fix use-after-free in do_tcp_getsockopt(TCP_CONGESTION)

Exact source revision recorded 30 Oct 2026 13:45:33 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-99139

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/tcp.c",
                        "net/ipv4/tcp_cong.c",
                        "net/ipv4/tcp_dctcp.c",
                        "net/ipv4/tcp_minisocks.c",
                        "net/ipv4/tcp_output.c"
                    ],
                    "versions": [
                        {
                            "version": "0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2",
                            "lessThan": "a60e62705c17534d6b6539de7b3a40c259e6827f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2",
                            "lessThan": "4b0930d66dde0a1d1898f0edbbb5496c4dfa5f03",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2",
                            "lessThan": "08dc5c62c09653d1c4ba67a009beb138486c2604",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2",
                            "lessThan": "c1804ef016392dd91267d2207ee43b1de34302ca",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2",
                            "lessThan": "a8e45471afa230c1431c26c8e99ec24377e3b514",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0baf26b0fcd74bbfcef53c5d5e8bad2b99c8d0d2",
                            "lessThan": "5271b79b7ad68dcb222e893773f92bdabf7750f3",
                            "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/tcp.c",
                        "net/ipv4/tcp_cong.c",
                        "net/ipv4/tcp_dctcp.c",
                        "net/ipv4/tcp_minisocks.c",
                        "net/ipv4/tcp_output.c"
                    ],
                    "versions": [
                        {
                            "version": "5.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.191",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.161",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.115",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.59",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.13",
                            "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