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 stric…
High CVSS 7.8
Summary
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, leading to bugs[0] when sharing the mm in other ways; ie: BUG: KASAN: slab-use-after-free in futex_hash_put ... where the +1 bias can end up on a percpu counte…
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://git.kernel.org/stable/c/1dcd36420af2da5bd59306dba9caf78e3d248b1d Patch
- https://git.kernel.org/stable/c/974ac49a9a068b0591a59f65c63eb06579a13091 Patch
- https://git.kernel.org/stable/c/ee9dce44362b2d8132c32964656ab6dff7dfbc6a Patch
- https://access.redhat.com/errata/RHSA-2026:45114
- https://access.redhat.com/errata/RHSA-2026:47040
- https://access.redhat.com/security/cve/CVE-2026-52973 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492413 Issue Tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52973.json Third Party Advisory
Timeline
- nvd_ingest NVD