CVE-2026-23271High· 7.8▾ TwilightIn 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. Specif…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.10%
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.
Linux >= 592903cdcbf606a838056bae6d03fc557806c914 < 4df1a45819e50993cb351682a6ae8e7ed2d233a0Linux >= 592903cdcbf606a838056bae6d03fc557806c914 < 4f8d5812337871227bb2c98669a87c306a2f86efLinux >= 592903cdcbf606a838056bae6d03fc557806c914 < 5c48fdc4b4623533d86e279f51531a7ba212eb87Linux >= 592903cdcbf606a838056bae6d03fc557806c914 < 3f89b61dd504c5b6711de9759e053b082f9abf12Linux >= 592903cdcbf606a838056bae6d03fc557806c914 < bb190628fe5f2a73ba762a9972ba16c5e895f73eLinux >= 592903cdcbf606a838056bae6d03fc557806c914 < c9bc1753b3cc41d0e01fbca7f035258b5f4db0aeLinux 2.6.31Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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