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...

Linux Distros Unpatched Vulnerability : CVE-2026-80775

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - futex: Fix race on the initial mm-futex.phash.ref allocation futexhashallocate allocates mm-futex.phash.ref without any locking. Commit d9b05321e21e futex: Move...

CVE-2026-80775

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...

CVE-2026-80775 futex: Fix race on the initial mm->futex.phash.ref allocation

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...

EUVD-2026-71418

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...

CVE-2026-80775 futex: Fix race on the initial mm->futex.phash.ref allocation

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...

CVE-2026-80775

CVE-2026-80775 is a race condition in the Linux kernel futex subsystem, specifically in the initial allocation of mm->futex.phash.ref. The root cause is a concurrent execution scenario introduced by nested vfork : when a vfork child calls vfork again and is killed with SIGKILL, the parent and ...

PT-2026-85616

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

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...

SUSE CVE-2026-52973

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...

EUVD-2026-38841

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...

CVE-2026-52973

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...

CVE-2026-52973

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...

CVE-2026-52973

Summary: CVE-2026-52973 relates to the Linux kernel futex subsystem. The issue arises from dropping the CLONE_THREAD requirement for private default futex hash allocation, because the function need_futex_hash_allocate_default() relied on strict pthread semantics. This misinteraction with CLONE_TH...

CVE-2026-52973 futex: Drop CLONE_THREAD requirement for private default hash alloc

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...

CVE-2026-52973

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...

CVE-2026-52973 futex: Drop CLONE_THREAD requirement for private default hash alloc

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rvdso: In the vdsojointimens function, a NULL reference was corrected when using vfork. The testing results are as follows in the kernel log: 6.838454 Unable to handle kernel access to user memory without uaccess routines at...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/mmcid: The handling of vfork/CLONEVM functions must be corrected properly. Matthieu and Jiri reported that there were stalls occurring when a task repeatedly looped in mmgetcid during scheduling. It turned out that the logi...