Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: The issue of losing the “young/dirty” bits during the pagemap scan has been fixed. The function makeuffdwpwppte used to perform these operations was previously executed as follows: c pte = ptepgetptep;...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: mmc: vub300: fix warning – do not call blocking ops when !TASKRUNNING vub300enablesdioirq works with a mutex and requires TASKRUNNING to function properly. Ensure that we mark the current context as TASKRUNNING for sleepable...

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 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 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: idpf: Error handling in the inittask during loading was fixed. If the inittask fails during driver loading, we end up with no vports and netdevs, effectively failing the entire process. In that state, a subsequent reset will resu...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Protection against accessing NULL pt regs in bpfgettaskstack The taskptregs function can return NULL on the powerpc architecture for kernel threads. This NULL value is then used in bpfgetstack to check for the user mode...

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

In the Linux kernel, the following vulnerability has been resolved: fs/proc: dotaskstat: The sig-statslock lock is used to gather statistics about threads/children. The locktasksighand function can cause a hard lockup. If NRCPUS threads call dotaskstat at the same time, and the process has...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: pm8001: A use-after-free issue was addressed for aborted SSP/STP SAS tasks. Currently, a use-after-free may occur if a SAS task is aborted by the upper layer before we handle the I/O completion in mpisspcompletion or...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: qedf: Fix refcount issue when LOGO is received during TMF A hung task trace was observed during LOGO processing. 974.309060 0000:00:00.0: qedfehdevicereset:868: 1:0:2:0: LUN RESET issued… 974.309065 0000:00:00.0:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: pm8001: Fixed task leakage in pm8001sendabortall In pm8001sendabortall, ensure that the allocated SAS task is freed if pm8001tagalloc or pm8001mpibuildcmd fails...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: s390: fixed the issue where double-free of GS and RI CBs occurs during fork failures. The pointers for guarded storage and runtime instrumentation control blocks are stored in the threadstruct of the associated task. These...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Ensure that pages are unlocked in case of a failure in cowfilerange. There is a hangtask report for zoned btrfs as follows: https://github.com/naota/linux/issues/59 726.328648 INFO: Task rocksdb:high0:11085 blocked for...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: w1: fixed the warning that appeared after calling w1process. I received the following warning message while removing the driver ds2482: ------------ cut here ------------ Do not call blocking operations when the !TASKRUNNING;...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: seccomp: Move copyseccomp to the no-failure path. Our syzbot instance reported memory leaks in doseccomp, similar to the reports 1. This indicates that we are failing to properly free the struct seccompfilter and some objects...

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 Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Landlock: Fixed the handling of disconnected directories. Disconnected files or directories may appear when they are visible and opened from a bind mount, but have been renamed or moved from the source of the bind mount in a w...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iouring: Ensure that ctx-rings is stable when manipulating task work flags. If DEFERTASKRUN | SETUPTASKRUN is used, and task work is added while the ring is being resized, there is a possibility that the OR operation of...

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: rcuscale: Move rcuscalewriter’s scheduletimeoutuninterruptible function to idle. The rcuscale.holdoff module parameter can be used to delay the start of rcuscalewriter’s kthread. However, the hung-task timeout will trigger when t...

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: iouring: Now waits for request completions upon exit. When the ring exits, cleanup is performed, and the final cancelations and waits for completions are handled by ioringexitwork. This function is invoked by kworker, which does...