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: sched/fair: Do not balance tasks to their current running CPUs. We encountered a situation where the balancer attempts to balance a migrated task with disabled status, triggering a warning in settaskcpu. The detailed error messag...

Astra Linux – Vulnerability in Linux 5.10

A race condition was detected in the fs/proc/taskmmu.c file, which is part of the memory management sub-component in the Linux kernel. This issue may allow a local attacker with user privileges to cause a denial of service...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: cgroup: Use separate source/destination nodes when preloading csssets for migration. Each cssset is associated with its corresponding tasks. When moving tasks between csssets during a migration, we need to keep the source and...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/scs: The task stack state is reset in bringupcpu. When a CPU is hot-plugged, the idle task on that CPU calls several layers of C code before finally leaving the kernel. When KASAN is in use, “poisoned” shadow is retained fo...

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

A issue was discovered in the file drivers/media/dvb-core/dvbfrontend.c within the Linux kernel version 6.2. There is a blocking operation that occurs when a task is in the !TASKRUNNING state. In the function dvbfrontendgetevent, the function waiteventinterruptible is called; the condition used i...

Astra Linux – Vulnerability in Chromium

A heap buffer overflow in the Task Manager of Google Chrome prior to version 97.0.4692.99 allowed a remote attacker to potentially exploit heap corruption through specific user interactions...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: perf: Fix event leak upon exit When a task is scheduled out, pending sigtrap deliveries are deferred to the target task upon resume to user space via taskwork. However, failures during the addition of an event’s callback to 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: RISCV: Fixed TASKSIZE on 64-bit NOMMU. On NOMMU, user space memory can originate from anywhere within physical RAM. The current definition of TASKSIZE is incorrect if any RAM exceeds 4GB, causing spurious failures in user space...

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 vulnerability has been resolved: sched/mmcid: Prevent CID stalls due to concurrent forks A newly forked task is counted as a MMCID user before it becomes visible in the process’ thread list and the global task list. This causes the following issue: CPU1 CPU2 for...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: schedext: Preemption between scxclaimexit and the subsequent execution of the helper work is disabled. scxclaimexit atomically sets the exitkind value, preventing scxerror from triggering further error handling. After claiming...

Astra Linux – Vulnerability in Chromium

The use of “after free” in Blink Task Scheduling in Google Chrome before version 115.0.5790.170 allowed a remote attacker to potentially exploit heap corruption through a crafted HTML page. Chromium security severity: High...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: “hungtask”: fixed warnings caused by unaligned lock pointers. The blocker tracking mechanism assumes that lock pointers are at least 4-byte aligned, so that their lower bits can be used for type encoding. However, as reported by...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: iouring/rw: Defer fsnotify calls to task context. We cannot defer these calls outside of the kiocb completion, as that might be off-soft/hard IRQ context. We should defer the calls until we process the taskwork for this reques...

Astra Linux – Vulnerability in Firefox and Thunderbird

During operations on MessageTasks, a task may be removed while it is still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird 78.15, Thunderbird 91.2, Firefox ESR 91.2, Firefox ESR 78.15, and Firefox 93...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fixed the issue where iscsitask was used after freeing it. The commit d39df158518c “scsi: iscsi: Have abort handler get ref to conn” added calls to iscsigetconn/iscsiputconn during abort handling. However, it also...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: PID: Taking a reference when initializing cadpid During boot, kernelinitfreeable initializes cadpid to the struct pid of the init task. Later, we may change cadpid via sysctl. When this happens, procdocadpid will increment the...

Astra Linux – Vulnerability in openexr

OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf31::LineCompositeTask::execute called from IlmThread31::NullThreadPoolProvider::addTask and IlmThread31::ThreadPool::addGlobalTask. NOTE: db217f2 may be inapplicable...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: iouring: Fixed a null-ptr-deref in iotctxexitcb. Syzkaller reports a NULL deref bug as follows: BUG: KASAN: null-ptr-deref in iotctxexitcb+0x53/0xd3 Read of size 4 at address 0000000000000138 by task file1/1955 CPU: 1 PID: 195...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: schedext: Corrected incorrect autogroup migration detection. The function scxmovetask is called from schedmovetask, and it informs the BPF scheduler that cgroup migration is being performed. schedmovetask is used for both cgroup...