Linux kernel futex Heap Buffer Overflow DoS

The vulnerability of the futexhashallocate function in the Linux kernel’s futex component is related to the multiple release of the same resource or descriptor. Exploiting this vulnerability could allow an attacker to cause a service failure...

kernel: futex: Fix race on the initial mm->futex.phash.ref allocation

A flaw was found in the Linux kernel. A race condition exists in the futexhashallocate function, specifically during the initial allocation of mm-futex.phash.ref. This vulnerability can be triggered in scenarios involving nested vfork calls, where a parent and grandchild process might concurrentl...

kernel: futex: Fix race on the initial mm->futex.phash.ref allocation

A flaw was found in the Linux kernel. A race condition exists in the futexhashallocate function, specifically during the initial allocation of mm-futex.phash.ref. This vulnerability can be triggered in scenarios involving nested vfork calls, where a parent and grandchild process might concurrentl...

CVE-2026-80775

A flaw was found in the Linux kernel. A race condition exists in the futexhashallocate function, specifically during the initial allocation of mm-futex.phash.ref. This vulnerability can be triggered in scenarios involving nested vfork calls, where a parent and grandchild process might concurrentl...

CVE-2026-80775: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: futex: Fix race on the initial mm-futex.phash.ref allocation futexhashallocate allocates mm-futex.phash.ref without any locking. Commit d9b05321e21e "futex: Move futexhashfree back to mmput" moved the allocation here and assumed...