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ceph: fix UAF in __kick_flushing_caps() on cf entry freed during unlock

cve-program · CVE-2026-89655

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": [
                        "fs/ceph/caps.c"
                    ],
                    "versions": [
                        {
                            "version": "e4500b5e35c213e0f97be7cb69328c0877203a79",
                            "lessThan": "091137821e1fc88f37e15201abf055c9494ddc61",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e4500b5e35c213e0f97be7cb69328c0877203a79",
                            "lessThan": "01542430081014d80fc9e70e92d6647432ddb7fc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e4500b5e35c213e0f97be7cb69328c0877203a79",
                            "lessThan": "23eb34a53a53cb1a6dab1eeee830633207ac158d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e4500b5e35c213e0f97be7cb69328c0877203a79",
                            "lessThan": "19f16f04c2b014a7dd214dc1e42557d8530b16f3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e4500b5e35c213e0f97be7cb69328c0877203a79",
                            "lessThan": "2701431aa3cc8b23efe6890182e7b04f5e76fab5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e4500b5e35c213e0f97be7cb69328c0877203a79",
                            "lessThan": "fe46746087b5b9c5bb2d022df6c7819218494ced",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e4500b5e35c213e0f97be7cb69328c0877203a79",
                            "lessThan": "2dba24dcd5050be4b7b119e6f0b01f62203b5d26",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e4500b5e35c213e0f97be7cb69328c0877203a79",
                            "lessThan": "7af4c4f01305b0935adf6d4301b1ec407025485d",
                            "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": [
                        "fs/ceph/caps.c"
                    ],
                    "versions": [
                        {
                            "version": "4.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "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

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Sources read 9 Nov 04:29 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current