Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fixed a race condition in sndseqtimeropen. The timer instance per queue is exclusive, and sndseqtimeropen should handle concurrent accesses properly. It seems that the function checks for an already existing timer...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: - dm integrity: Fixed a UAF Use-after-Free in dmintegritydtr. - dmintegrity also has the same UAF problem when dmresume and dmdestroy are executed concurrently. Therefore, the timer is canceled again in dmintegritydtr...

Astra Linux – Vulnerability in Linux 5.10

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...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Clean up CPU timers before freeing them during exec. The commit 55e8c8eb2c7b “posix-cpu-timers: Store a reference to a pid instead of a task” changed the behavior so that tasks are looked up by PID when deleting...

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

In the Linux kernel, the following vulnerabilities have been resolved: clocksource/drivers/cadence-ttc: Fixed a memory leak in ttctimerprobe. Matching reports: drivers/clocksource/timer-cadence-ttc.c: Line 529, ttctimerprobe; Warning: ‘timerbaseaddr’ from ofiomap is not released on lines...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: posix-timers: A potential memory leak was identified in dotimercreate. When creating a posix timer with allocation of a specific timer ID, if there are issues with accessing the value in the user space, the function terminates...

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: ipv6/addrconf: fixed a potential refcount underflow for idev. In addrconfmodrstimer, the reference to idev depends on whether rstimer is not pending. Therefore, the timeout of rstimer was modified. There is a time gap in 1 during...

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

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: Synchronize devfreqmonitorstart/stop There is a risk that frequent changes to the governor, performed in a loop, may lead to corruption of the timer list. Specifically, the timer cancellation process, which occurs...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: m68k: For mvme147 and mvme16x architectures, do not wipe the PCC timer configuration bits. Do not clear the timer 1 configuration bits when clearing the interrupt flag and counter overflow. As reported by Michael, “This result...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: watchdog: rzg2lwdt: Fixed the 32-bit overflow issue. The value of timercycleus can be 0 due to 32-bit overflow. For example, if we assign the counter value “0xfff” for computing maxval. This patch fixes this issue by appending...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Failure in bpftimercancel when the callback is being cancelled Given a schedule: timer1 cb timer2 cb bpftimercanceltimer2; bpftimercanceltimer1; Both bpftimercancel calls will wait for the other callback to complete executio...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ax25: Fixing use-after-free bugs caused by ax25dsdeltimer. When the ax25 device is being detached, the ax25devdevicedown function calls ax25dsdeltimer to clean up the slavetimer. When the timer handler is running, the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/fair: This bug prevents dead task groups from regaining access to cfsrq. Kevin is reporting crashes that indicate a use-after-free of cfsrq in the function updateblockedaverages. Initial debugging revealed that cfsrq...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ptp: ocp: fixed use-after-free bugs caused by ptpocpwatchdog The ptpocpdetach function only shuts down the watchdog timer if it is pending. However, if the timer handler is already running, timerdeletesync is not called. This...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: fixed a race condition that could lead to UAF in sndusbmidifree. The previous commit 0718a78f6a9f “ALSA: usb-audio: Properly terminates the timer upon endpoint deletion” fixed an UAF issue caused by the error...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: fixed a use-after-free in twtimerhandler A real-world panic issue was discovered in Linux 5.4. The details of the issue are as follows: - Bug: Unable to handle a page fault for the address: ffffde49a863de28 - Memory layout:...

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 vulnerabilities have been resolved: mrp: Introduced active flags to prevent UAF when the applicant uninit occurs. The caller of deltimersync must prevent the timer from restarting. If we don’t have this synchronization, there is a small probability that the...

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: posix-timers: A situation where livelock occurs in itimerdelete has been addressed. Itimerdelete includes a retry loop when the timer expires simultaneously. On non-RT kernels, this simply involves waiting until the timer callbac...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021616)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021616 advisory. In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket BUG: KASAN: slab-use-after-free in...