CVE-2026-23271 (GCVE-0-2026-23271)
Vulnerability from cvelistv5
Published
2026-03-20 08:08
Modified
2026-04-13 06:03
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race Make sure that __perf_event_overflow() runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled. This opens up a race vs perf_event_exit_event() and friends that will go and free various things the overflow path expects to be present, like the BPF program.
References
Impacted products
Vendor Product Version
Linux Linux Version: 592903cdcbf606a838056bae6d03fc557806c914
Version: 592903cdcbf606a838056bae6d03fc557806c914
Version: 592903cdcbf606a838056bae6d03fc557806c914
Version: 592903cdcbf606a838056bae6d03fc557806c914
Version: 592903cdcbf606a838056bae6d03fc557806c914
Version: 592903cdcbf606a838056bae6d03fc557806c914
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          "lang": "en",
          "value": "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."
        }
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        "dateUpdated": "2026-04-13T06:03:20.071Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/4df1a45819e50993cb351682a6ae8e7ed2d233a0"
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          "url": "https://git.kernel.org/stable/c/4f8d5812337871227bb2c98669a87c306a2f86ef"
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          "url": "https://git.kernel.org/stable/c/c9bc1753b3cc41d0e01fbca7f035258b5f4db0ae"
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    "cveId": "CVE-2026-23271",
    "datePublished": "2026-03-20T08:08:46.711Z",
    "dateReserved": "2026-01-13T15:37:45.991Z",
    "dateUpdated": "2026-04-13T06:03:20.071Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}


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