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tee: optee: prevent use-after-free when the client exits before the supplicant

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-2026-53273

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": [
                        "drivers/tee/optee/supp.c"
                    ],
                    "versions": [
                        {
                            "version": "0180cf0373f84fff61b16f8c062553a13dd7cfca",
                            "lessThan": "416259cb5bffecaaae5f76539deb535a8c1b2c34",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c0a9a948159153be145f9471435695373904ee6d",
                            "lessThan": "724d0caffd4204b46f78efe22f18f8338031c6e1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ec18520f5edc20a00c34a8c9fdd6507c355e880f",
                            "lessThan": "ae847ab29ded2d7cece4d5970f0edefa4137bf2f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d61cc1a435e6894bfb0dd3370c6f765d2d12825d",
                            "lessThan": "9a0dc9279d0907b198f205a693aedf696b08145d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fd9d2d6124c293e40797a080adf8a9c237efd8b8",
                            "lessThan": "d366a01475f927402c96a3fe78bfc06b924fc87d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "70b0d6b0a199c5a3ee6c72f5e61681ed6f759612",
                            "lessThan": "d5b57bb314d79e99bebb58a53588fa11dd4dbf69",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "70b0d6b0a199c5a3ee6c72f5e61681ed6f759612",
                            "lessThan": "373152c94e57e9592b68c100e224fbd943cfd608",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "70b0d6b0a199c5a3ee6c72f5e61681ed6f759612",
                            "lessThan": "387a926ee166814611acecb960207fe2f3c4fd3e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3eb4911364c764572e9db4ab900a57689a54e8ce",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "21234efe2a8474a6d2d01ea9573319de7858ce44",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.235",
                            "lessThan": "5.10.259",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.179",
                            "lessThan": "5.15.210",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.130",
                            "lessThan": "6.1.176",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.80",
                            "lessThan": "6.6.143",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.17",
                            "lessThan": "6.12.94",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.291",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.13.5",
                            "lessThan": "6.14",
                            "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": [
                        "drivers/tee/optee/supp.c"
                    ],
                    "versions": [
                        {
                            "version": "6.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.259",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.94",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.36",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.13",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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 18:59 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current