{"id":"CVE-2026-23271","revision":"c901f8a1e6f34cc78afff081d0ad5108","records":[{"revision":"c901f8a1e6f34cc78afff081d0ad5108","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23271","aliases":[],"title":"perf: Fix __perf_event_overflow() vs perf_remove_from_context() race","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf: Fix __perf_event_overflow() vs perf_remove_from_context() race\n\nMake sure that __perf_event_overflow() runs with IRQs disabled for all\npossible callchains. Specifically the software events can end up running\nit with only preemption disabled.\n\nThis opens up a race vs perf_event_exit_event() and friends that will go\nand free various things the overflow path expects to be present, like\nthe BPF program.","state":0,"publishedAt":"2026-03-20T08:08:46.711+00:00","modifiedAt":"2026-10-19T18:35:40.719+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"kernel/events/core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"592903cdcbf606a838056bae6d03fc557806c914\",\n                            \"lessThan\": \"4df1a45819e50993cb351682a6ae8e7ed2d233a0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"592903cdcbf606a838056bae6d03fc557806c914\",\n                            \"lessThan\": \"4f8d5812337871227bb2c98669a87c306a2f86ef\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"592903cdcbf606a838056bae6d03fc557806c914\",\n                            \"lessThan\": \"5c48fdc4b4623533d86e279f51531a7ba212eb87\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"592903cdcbf606a838056bae6d03fc557806c914\",\n                            \"lessThan\": \"3f89b61dd504c5b6711de9759e053b082f9abf12\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"592903cdcbf606a838056bae6d03fc557806c914\",\n                            \"lessThan\": \"bb190628fe5f2a73ba762a9972ba16c5e895f73e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"592903cdcbf606a838056bae6d03fc557806c914\",\n                            \"lessThan\": \"c9bc1753b3cc41d0e01fbca7f035258b5f4db0ae\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"kernel/events/core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.31\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.31\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.167\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.130\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.77\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.17\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.7\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/4df1a45819e50993cb351682a6ae8e7ed2d233a0","https://git.kernel.org/stable/c/4f8d5812337871227bb2c98669a87c306a2f86ef","https://git.kernel.org/stable/c/5c48fdc4b4623533d86e279f51531a7ba212eb87","https://git.kernel.org/stable/c/3f89b61dd504c5b6711de9759e053b082f9abf12","https://git.kernel.org/stable/c/bb190628fe5f2a73ba762a9972ba16c5e895f73e","https://git.kernel.org/stable/c/c9bc1753b3cc41d0e01fbca7f035258b5f4db0ae"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23271","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23271","identifiers":["CVE-2026-23271"]},"retained":false,"historicalAffected":[]}],"coverage":[]}