CVE-2026-80916

A flaw was found in the Linux kernel's kcov component. A race condition occurs in PREEMPTRT kernels when softirq handlers, running as preemptible task threads, are preempted by higher-priority softirq threads on the same CPU. This can lead to data corruption of the KCOV state, kernel crashes, and...

Siemens SIMATIC S7-1500 TM MFP Improper Update of Reference Count (CVE-2026-46099)

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels seg6inputcore and rplinput call ip6routeinput which sets a NOREF dst on the skb, then pass it to dstcachesetip6 invoking dsthold unconditionally. On PREEMPTRT, ksoftirqd is...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: irqwork: A use-after-free issue was addressed in irqworksingle on PREEMPTRT. On PREEMPTRT, non-HARD irqwork operations are executed via per-CPU kthreads through runirqworkd. Therefore, irqworksync uses rcuwait to wait for BUSY==0...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: gpio: ml-ioh: using rawspinlockt as the register lock The iohirqtype function is registered as the irqchip .irqsettype callback. It takes chip-spinlock with spinlockirqsave. This callback is accessed from setupirq -...

Astra Linux – vulnerability in linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: kcov: Fix data corruption and race conditions on PREEMPTRT SyZBot reports that KCOV state corruption occurs on PREEMPTRT kernels. Currently, the temporary storage used for saving/restoring remote KCOV states is allocated as a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Futex: Prevent RCUWait use-after-free during requeue PI On PREEMPTRT, FUTEXCMPREQUEUEPI can trigger a KASAN report slab-out-of-bounds in futexrequeuepicomplete, when calling rcuwaitwakeup. The futexq used by futexwaitrequeuepi is...

Astra Linux – vulnerability in linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPTRT This resolves the following issues related to splat and lockup when running with PREEMPTRT enabled on Hyper-V: 415.140818 BUG: scheduling while atomic:...

CVE-2026-90305

A flaw was found in the Linux kernel, specifically affecting ARM architectures with PREEMPTRT enabled. A local attacker can trigger a Denial of Service DoS by utilizing CPU timers, such as through setrlimit or setitimer. This occurs because the kernel attempts to acquire a sleeping lock...

CVE-2026-90208

A flaw was found in the Linux kernel's samsungpwm clock source driver. When the PREEMPTRT Preemptible Real-Time feature is enabled on ARM systems, a regular spinlock is incorrectly converted to a sleeping lock. This can lead to a deadlock or system instability, resulting in a Denial of Service Do...

CVE-2026-90193

A flaw was found in the Linux kernel's qcom-cpucp mailbox driver. Under specific PREEMPTRT configurations, the qcomcpucpmboxirqfn interrupt handler attempts to re-acquire a spinlock it already holds. This re-entrant lock attempt causes a permanent deadlock within the kernel. This can lead to a...

SUSE CVE-2026-97521

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2quotainit checks for duplicate quotachange IDs while holding qdlock and the quota hash bucket bitlock. That path used gfs2qdsearchbucket, which takes a lockref reference via...

DEBIAN-CVE-2026-97521

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2quotainit checks for duplicate quotachange IDs while holding qdlock and the quota hash bucket bitlock. That path used gfs2qdsearchbucket, which takes a lockref reference via...

CVE-2026-97521

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2quotainit checks for duplicate quotachange IDs while holding qdlock and the quota hash bucket bitlock. That path used gfs2qdsearchbucket, which takes a lockref reference via...

AZL-103757 CVE-2026-97521 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2quotainit checks for duplicate quotachange IDs while holding qdlock and the quota hash bucket bitlock. That path used gfs2qdsearchbucket, which takes a lockref reference via...

UBUNTU-CVE-2026-97521

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2quotainit checks for duplicate quotachange IDs while holding qdlock and the quota hash bucket bitlock. That path used gfs2qdsearchbucket, which takes a lockref reference via...

AZL-103559 CVE-2026-93240 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: memcg: make the v1 soft limit knob inert The v1 soft limit has been deprecated since v6.12 and nobody has reported depending on it. Start the removal by decoupling the interface from the implementation: keep...

DEBIAN-CVE-2026-93240

In the Linux kernel, the following vulnerability has been resolved: memcg: make the v1 soft limit knob inert The v1 soft limit has been deprecated since v6.12 and nobody has reported depending on it. Start the removal by decoupling the interface from the implementation: keep...

CVE-2026-97521 gfs2: fix quota init duplicate scan

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2quotainit checks for duplicate quotachange IDs while holding qdlock and the quota hash bucket bitlock. That path used gfs2qdsearchbucket, which takes a lockref reference via...

CVE-2026-97521

A bug in the Linux kernel 's gfs2 filesystem was identified where the gfs2_quota_init() function performed a duplicate quota ID check while holding the qd_lock and bucket bitlock . Specifically, the call to gfs2_qd_search_bucket() utilized lockref_get_not_dead(), which may sleep on PREEMPT_RT sys...

CVE-2026-97521 gfs2: fix quota init duplicate scan

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix quota init duplicate scan gfs2quotainit checks for duplicate quotachange IDs while holding qdlock and the quota hash bucket bitlock. That path used gfs2qdsearchbucket, which takes a lockref reference via...