CVE-2026-98507Medium· 4.7▾ SunlitA flaw was found in the Linux kernel's memory management subsystem. Due to a missing synchronization barrier when preparing anonymous virtual memory areas, concurrent memory operations can be reordered. A local attacker can exploit this ra…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 25.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
— → 7.8
none → high
7.8 → 4.7
high → medium
A flaw was found in the Linux kernel's memory management subsystem. Due to a missing synchronization barrier when preparing anonymous virtual memory areas, concurrent memory operations can be reordered. A local attacker can exploit this race condition by running concurrent threads on adjacent memory regions, causing lock mismatches or improper memory reuse. This flaw primarily results in a kernel hang or deadlock, causing a Denial of Service (DoS).
kernel: mm/rmap: fix missing barrier between anon_vma init and vma->anon_vma publish — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-24.
Affected:
No fix planned:
Out of support scope
Workarounds / mitigations:
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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