UBUNTU-CVE-2026-43499

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in removewaiter removewaiter is used by the slowlock paths, but it is also used for proxy-lock rollback in rtmutexstartproxylock when invoked from futexrequeue. In the latter case...

CVE-2026-43499

The CVE-2026-43499 issue concerns the Linux kernel rtmutex path where remove_waiter() operated on current during dequeue in rt_mutex_start_proxy_lock() via futex_requeue(). This caused: (1) rbtree dequeue without waiter::task::pi_lock, (2) waiter task pi_blocked_on not cleared (dangling pointer, ...

CVE-2026-43499 rtmutex: Use waiter::task instead of current in remove_waiter()

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in removewaiter removewaiter is used by the slowlock paths, but it is also used for proxy-lock rollback in rtmutexstartproxylock when invoked from futexrequeue. In the latter case...

EUVD-2026-31277

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in removewaiter removewaiter is used by the slowlock paths, but it is also used for proxy-lock rollback in rtmutexstartproxylock when invoked from futexrequeue. In the latter case...

CVE-2026-43499 rtmutex: Use waiter::task instead of current in remove_waiter()

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in removewaiter removewaiter is used by the slowlock paths, but it is also used for proxy-lock rollback in rtmutexstartproxylock when invoked from futexrequeue. In the latter case...

CVE-2026-43499

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in removewaiter removewaiter is used by the slowlock paths, but it is also used for proxy-lock rollback in rtmutexstartproxylock when invoked from futexrequeue. In the latter case...

PT-2026-42456

Name of the Vulnerable Software and Affected Versions Linux kernel versions 2.6.39 through 7.0 Description A use-after-free UAF issue exists in the real-time mutex rtmutex code used by the futex priority inheritance mechanism. The problem occurs in the remove waiter function, which was originally...

Linux Kernel Security Vulnerabilities

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the use of current instead of waiter::task in the removewaiter function within the rtmutex. This...

CVE-2026-43499: Use After Free

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in removewaiter removewaiter is used by the slowlock paths, but it is also used for proxy-lock rollback in rtmutexstartproxylock when invoked from futexrequeue. In the latter case...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: locking/rtmutex: Skip removewaiter when the waiter is not enqueued The syzbot triggered the following error in removewaiter via FUTEXCMPREQUEUEPI: KASAN: Nullptrderef in range 0x0000000000000a88-0x0000000000000a8f...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-394703)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-394703 advisory. In the Linux kernel, the following vulnerability has been resolved: rtmutex: Drop rtmutex::waitlock before scheduling rtmutexhandledeadlock is called with...

CVE-2023-53216 arm64: efi: Make efi_rt_lock a raw_spinlock

In the Linux kernel, the following vulnerability has been resolved: arm64: efi: Make efirtlock a rawspinlock Running a rt-kernel base on 6.2.0-rc3-rt1 on an Ampere Altra outputs the following: BUG: sleeping function called from invalid context at kernel/locking/spinlockrt.c:46 inatomic: 1,...

Azure Linux 3.0 Security Update: kernel (CVE-2024-46829)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-46829 advisory. - In the Linux kernel, the following vulnerability has been resolved: rtmutex: Drop rtmutex::waitlock before...

Unbreakable Enterprise kernel security update

5.4.17-2136.337.5 - net/mlx5: disable the 'fast unload' feature on Exadata systems Qing Huang Orabug: 37093177 5.4.17-2136.337.4 - ocfs2: reserve space for inline xattr before attaching reflink tree Gautham Ananthakrishna Orabug: 37199020 - Revert 'ocfs2: ocfs2 crash due to invalid hnextleafblk...

CBL Mariner 2.0 Security Update: kernel (CVE-2024-46829)

The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-46829 advisory. - In the Linux kernel, the following vulnerability has been resolved: rtmutex: Drop rtmutex::waitlock before...

rtmutex: Drop rt_mutex::wait_lock before scheduling

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CVE-2024-46829

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Drop rtmutex::waitlock before scheduling rtmutexhandledeadlock is called with rtmutex::waitlock held. In the good case it returns with the lock held and in the deadlock case it emits a warning and goes into an endless...

DEBIAN-CVE-2024-46829

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Drop rtmutex::waitlock before scheduling rtmutexhandledeadlock is called with rtmutex::waitlock held. In the good case it returns with the lock held and in the deadlock case it emits a warning and goes into an endless...

UBUNTU-CVE-2024-46829

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Drop rtmutex::waitlock before scheduling rtmutexhandledeadlock is called with rtmutex::waitlock held. In the good case it returns with the lock held and in the deadlock case it emits a warning and goes into an endless...

CVE-2024-46829 rtmutex: Drop rt_mutex::wait_lock before scheduling

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Drop rtmutex::waitlock before scheduling rtmutexhandledeadlock is called with rtmutex::waitlock held. In the good case it returns with the lock held and in the deadlock case it emits a warning and goes into an endless...