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THREAT OPS › Threat News › [NVD] CVE-2026-52973 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONE_THREAD requirement for private default hash alloc Currently need_futex_hash_allocate_default() depends on strict pthread semantics, abusing CLONE_THREAD. This breaks the non-concurrency assum

[NVD] CVE-2026-52973 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONE_THREAD requirement for private default hash alloc Currently need_futex_hash_allocate_default() depends on strict pthread semantics, abusing CLONE_THREAD. This breaks the non-concurrency assum

lownvdPublished 2026-06-24

CVE-2026-52973 CVSS: 7.8 HIGH Published: 2026-06-24T17:17:07.840

In the Linux kernel, the following vulnerability has been resolved:

futex: Drop CLONE_THREAD requirement for private default hash alloc

Currently need_futex_hash_allocate_default() depends on strict pthread semantics, abusing CLONE_THREAD. This breaks the non-concurrency assumptions when doing the mm->futex_ref pcpu allocations,

Indicators of compromise

CVE-2026-52973cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-52973