CVE-2026-46173

CVE-2026-46173 concerns the Linux kernel. The issue arises when an already-exiting task oopses and make_task_dead() calls do_task_dead() with preemption enabled, while __schedule() must be called with preemption disabled. If a preempted oopsing task is still in the dead-state, finish_task_switch(...

EUVD-2026-32800

In the Linux kernel, the following vulnerability has been resolved: exit: prevent preemption of oopsing TASKDEAD task When an already-exiting task oopses, maketaskdead currently calls dotaskdead with preemption enabled. That is forbidden: dotaskdead calls schedule, which has a comment saying...

CVE-2026-46173 exit: prevent preemption of oopsing TASK_DEAD task

In the Linux kernel, the following vulnerability has been resolved: exit: prevent preemption of oopsing TASKDEAD task When an already-exiting task oopses, maketaskdead currently calls dotaskdead with preemption enabled. That is forbidden: dotaskdead calls schedule, which has a comment saying...

Linux kernel 安全漏洞

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 fact that the TASKDEAD task that exits can be preempted, potentially leading to reclamation after...

PT-2026-44296

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists where an exiting task that experiences an oops a kernel panic that does not require a full system reboot can be preempted during the execution of do task dead. This occur...

UBUNTU-CVE-2026-45895

In the Linux kernel, the following vulnerability has been resolved: quota: fix livelock between quotactl and freezesuper When a filesystem is frozen, quotactlblock enters a retry loop waiting for the filesystem to thaw. It acquires sumount, checks the freeze state, drops sumount and uses...

CVE-2026-46031

In the Linux kernel, the following vulnerability has been resolved: net: ks8851: Reinstate disabling of BHs around IRQ handler If the driver executes ks8851irq AND a TX packet has been sent, then the driver enables TX queue via netifwakequeue which schedules TX softirq to queue packets for this...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: Kyber: An out-of-bounds access occurred when the thread was preempted. The function blkmqschedbiomerge retrieves the ctx and hctx for the current CPU and passes the hctx to -biomerge. The function kyberbiomerge then retrieves the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: Avoid using GFPKERNEL in an atomic context. Using GFPKERNEL in a preemption-disabled context may cause the following warning when CONFIGDEBUGATOMICSLEEP is enabled. 32.542271 BUG: A sleeping function was called from...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Rework lppacasharedproc to avoid DEBUGPREEMPT. lppacasharedproc takes a pointer to the lppaca, which is typically accessed through getlppaca. With DEBUGPREEMPT enabled, this leads to checking whether preemption i...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: Do not decrement the preempt count of the idle task when the CPU is offline. With PREEMPTCOUNT=y, when a CPU is offline and then brought back online, we encounter the following issue: BUG: Scheduling while atomic:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

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: A sleeping function is called from an invalid context at kernel/locking/spinlockrt.c:46 inatomic: 1...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed a sleeping function called from an invalid context in the RT kernel. When setting bootparams="traceevent=initcall:initcallstart tpprintk=1" in the cmdline, the outputprintk function was called, and spinlockirqsave...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mctp: Route lookups now perform under a RCU read-side lock. Our current route lookups mctproutelookup and mctproutelookupnull traverse the network’s route list without holding the RCU read lock. This means that the route lookups...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Netfilter: Use getrandomu32 instead of prandom. This issue may occur when updating the per-cpu rndstate from a user context, i.e., the localout path. BUG: Using smpprocessorid in preemptible 00000000 code: nginx/2725. Caller is...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: i2c: core: Perform atomic i2c transfers when !preemptible is set. Since bae1d3a05a8b, i2c transfers are not atomic if preemption is disabled. However, non-atomic i2c transfers require preemption e.g., during waitforcompletion, wh...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/ext: Prevent calls to updatelockedrq with a NULL rq. Avoid invoking updatelockedrq when the runqueue .rq pointer is NULL in the SCXCALLOP and SCXCALLOPRET macros. Previously, calling updatelockedrqNULL with preemption enabl...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: slab: fixed the context check for kmallocnolock in the PREEMPTRT kernel mode. In PREEMPTRT kernels, locallock acts as a sleeping lock. The current check in kmallocnolock only verifies that the context does not match NMI or hard I...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - riscv: ftrace: Fixed a panic caused by preemption being disabled. In RISCV, we need to use an AUIPC + JALR pair to encode an immediate jump, creating a jump to an address beyond 4K. This may cause errors if we want to enable...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: arm64/sve: Stale CPU state is discarded when handling SVE traps. The logic for handling SVE traps incorrectly manipulates the saved FPSIMD/SVE state. A race condition can occur where preemption causes a task to have TIFSVE set an...