CVE-2026-98408

A flaw was found in the Linux kernel's Renesas RZ/V2H watchdog timer driver. The driver fails to validate that the clock rate is non-zero during device initialization, leading to a division by zero condition. Under specific hardware or configuration states where the clock rate is zero, this issue...

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

In the Linux kernel, the following vulnerability has been resolved: um: time-travel: fix time corruption In the “basic” time-travel mode without =inf-cpu or =ext, we still encounter timer interrupts. These can occur at arbitrary times, for example, while inside the timerread function, which simpl...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: MGMT: Cancel the mesh send timer when the hdev is removed The meshsenddone timer is not canceled when the hdev is removed, which can cause a crash if the timer triggers after the hdev is gone. Cancel the timer when...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsllpuart: fixed a race condition during RX DMA shutdown. From time to time, DMA completion can occur mid-way through the DMA shutdown process: : lpuart32shutdown lpuartdmashutdown deltimersync lpuartdmarxcomplete...

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

In the Linux kernel, the following vulnerability has been resolved: ALSA: sh: aica: reordering cleanup operations to avoid UAF bugs The dreamcastcard-timer could schedule the spudmawork, and the spudmawork could also trigger the dreamcastcard-timer. When the sndpcmsubstream is closing, the...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: netrom: Decreases the sock refcount when the sock timer expires. The commit 63346650c1a9 “netrom: switch to the sock timer API” switched to using the sock timer API. This replaced modtimer with skresettimer, and deltimer with...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: dm thin: Fixed a UAF in runtimersoftirq When dmresume and dmdestroy are executed concurrently, it will lead to a UAF, as follows: Bug: KASAN: Use-after-free in runtimers+0x173/0x710 A 8-byte value is written to the address...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Drivers: tty: serial: Fixed a deadlock in sa1100settermios There is a deadlock in sa1100settermios, as shown below: Thread 1 | Thread 2 | sa1100enablems sa1100settermios | modtimer spinlockirqsave //1 | Wait for a while ... |...

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: KVM: x86: Fixed a situation where a hard lockup occurs in the virtual machine after prolonged inactivity, due to the periodic HV timer. When advancing the expiration of the guest’s APIC timer in periodic mode, set the expiration ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: fqpie: prevent dismantle issue For some reason, the fqpieDestroy function did not copy the working code from pieDestroy and other related functions, resulting in a persistent bug. Before calling...

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: pnx: Fixed a potential deadlock warning from the deltimersync call in isr. When deltimersync is called in an interrupt context, a warning is thrown due to a potential deadlock. The timer is only used to exit from...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: Watchdog: Fixed a possible use-after-free in wdtstartup. The remove path of this module calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192u: Fixed a deadlock in ieee80211beaconsstop. There is a deadlock in ieee80211beaconsstop, as shown below: Thread 1 | Thread 2 | ieee80211sendbeacon ieee80211beaconsstop | modtimer spinlockirqsave //1 | Wa...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ARM: 9317/1: kexec: Make smp stop calls asynchronous If a panic is triggered by a hrtimer interrupt, all online CPUs will be notified and set to offline. However, as highlighted in the commit 19dbdcb8039c “smp: Warn on function...

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

In the Linux kernel, the following vulnerabilities have been resolved: tcp/dccp: Do not use timerpending in reqskqueueunlink. Martin KaFai Lau reported a use-after-free in reqsktimerhandler. We are encountering a use-after-free related to a bpf program attached to tracetcpretransmitsynack. The...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: libsas: Fixed a use-after-free bug in smpexecutetasksg When executing an SMP task fails, the smpexecutetasksg function calls deltimer to delete the “slowtask-timer” timer. However, if the timer handler sastaskinternaltimedo...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Drivers: USB: Host: Fixed a deadlock in oxubussuspend There is a deadlock in oxubussuspend, as shown below: Thread 1 | Thread 2 | timeraction oxubussuspend | modtimer spinlockirq //1 | Wait for a while ... | oxuwatchdog...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: Watchdog: sc520wdt: A possible use-after-free occurred in wdtturnoff. The remove method of this module calls deltimer. However, that function does not wait for the timer handler to complete. This means that the timer handler may...

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: netfilter: xtIDLETIMER: Rejects the reuse of ALARM timer labels in revision 0 rules. In revision 0 rules, reusing timers by label always involves calling modtimer on the uninitialized timer-timer. If the label was created first i...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Fixed use-after-free bugs caused by pn532CmdTimeout. When the pn532 UART device is detached, the pn532uartRemove function is called. However, there are no functions in pn532uartRemove that can delete the cmdTimeout...