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tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG

cve-program · CVE-2026-31662

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/tipc/group.c"
                    ],
                    "versions": [
                        {
                            "version": "2f487712b89376fce267223bbb0db93d393d4b09",
                            "lessThan": "a7db57ccca21f5801609065473c89a38229ecb92",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2f487712b89376fce267223bbb0db93d393d4b09",
                            "lessThan": "36ec4fdd6250dcd5e73eb09ea92ed92e9cc28412",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2f487712b89376fce267223bbb0db93d393d4b09",
                            "lessThan": "575faea557f1a184a5f09661bd47ebd3ef3769f8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2f487712b89376fce267223bbb0db93d393d4b09",
                            "lessThan": "3bcf7aca63f0bcd679ae28e9b99823c608e59ce3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2f487712b89376fce267223bbb0db93d393d4b09",
                            "lessThan": "a2ea1ef0167d7a84730638d05c20ccdc421b14b6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2f487712b89376fce267223bbb0db93d393d4b09",
                            "lessThan": "1b6f13f626665cac67ba5a012765427680518711",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2f487712b89376fce267223bbb0db93d393d4b09",
                            "lessThan": "e0bb732eaf77f9ac2f2638bdac9e39b81e0a9682",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "2f487712b89376fce267223bbb0db93d393d4b09",
                            "lessThan": "48a5fe38772b6f039522469ee6131a67838221a8",
                            "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/tipc/group.c"
                    ],
                    "versions": [
                        {
                            "version": "4.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.169",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.135",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.82",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.23",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.13",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

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

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Sources read 8 Nov 21:05 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current