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nfc: llcp: fix OOB read and u8 offset wrap in TLV parsers

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

cve-program · CVE-2026-80799

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/nfc/llcp_commands.c"
                    ],
                    "versions": [
                        {
                            "version": "0be9de2ea01e8d52646e7310a7eef5459cf07ea8",
                            "lessThan": "2c1456fe09ab1a5a9fe1d8339ca6d509589b56e1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3df40eb3a2ea58bf404a38f15a7a2768e4762cb0",
                            "lessThan": "7f6f3d087c67a4346189ef2c36481455bbc59a74",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3df40eb3a2ea58bf404a38f15a7a2768e4762cb0",
                            "lessThan": "9c47d667963542c3cf8e3007b7f10c0904d08238",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3df40eb3a2ea58bf404a38f15a7a2768e4762cb0",
                            "lessThan": "a209334ed929941b20810c17c3a507445b0a7c85",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3df40eb3a2ea58bf404a38f15a7a2768e4762cb0",
                            "lessThan": "382eaa770335acf4f16a5a55524500f2bb4207df",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3df40eb3a2ea58bf404a38f15a7a2768e4762cb0",
                            "lessThan": "2d239590d1845a706304833d40dd6d4fec20ad88",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3df40eb3a2ea58bf404a38f15a7a2768e4762cb0",
                            "lessThan": "e84cdfdc4a6c88e8b751144458f2e04e24415a28",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3df40eb3a2ea58bf404a38f15a7a2768e4762cb0",
                            "lessThan": "875285a165fd3b402de2ab3be0deb355d6f4caf5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3df40eb3a2ea58bf404a38f15a7a2768e4762cb0",
                            "lessThan": "78b20c8eeacd2e44a2d8a4cb5316d3c521d90911",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1deacb5e031e289ca5636f2db4fcae6612c05d34",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "66a1be74230bbe098e651766c9a0cf4038db8442",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.188",
                            "lessThan": "5.10.267",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.291",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.251",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

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/nfc/llcp_commands.c"
                    ],
                    "versions": [
                        {
                            "version": "5.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.267",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.218",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.185",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.154",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.106",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.47",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.11",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.1",
                            "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

ChangeIntel

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Sources read 9 Nov 05:32 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current