Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: loop: Overflow check during loop configuration The user space can configure a loop using an ioctl call. In this process, a configuration of type loopconfig is passed see the loioctl case on line 1550 of drivers/block/loop.c. This...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: block: fixed leakage of debugfs entries caused by blktrace. The commit 99d055b4fd4b “block: removed per-disk debugfs files in blkunregisterqueue” moves blkTraceShutdown from blkReleaseQueue to blkUnregisterQueue. This is safe if...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ethtool: ioctl: fixed a potential NULL dereference in ethtoolsetcoalesce. ethtoolsetcoalesce now uses both .getcoalesce and .setcoalesce callbacks. However, the check for their availability is buggy. Therefore, changing the...

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: vfio/pci: Locking external INTx masking operations Masking operations by changing the config space for DisINTx may cause races with INTx configuration changes made via ioctl. Create wrappers that add locking mechanisms for paths...

Astra Linux – Vulnerability in Linux 5.10, Linux

When setting a font using malicious data via the ioctl command PIOFONT, the kernel will write memory beyond its bounds...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: gpio: Prevent potential speculation leaks in gpiodevicegetdesc The userspace may trigger a speculative read of an address outside the gpio descriptor array. Users can do this by calling gpioioctl with an offset that is out of...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fixed the issue where GEM handle creation was subject to ref counting. Previously, panfrostgemcreatewithhandle would return a BO, but only with a reference to the handle. User space could theoretically guess this...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Prevent potential UAF Use After Free issues during group creation. This commit addresses the issue where a malicious user space could potentially alter the handle of a group and attempt to call the GROUPDESTROY ioctl...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Video: fbdev: arkfb – Fixed a divide-by-zero bug in arksetpixclock Since the user can control the arguments of ioctl from the user space, there may be situations where a divide-by-zero bug occurs. For example, in the file...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/amdgpu: Refactored amdgpugemvaioctl to handle last fence updates and timeline management v4. This commit simplifies the amdgpugemvaioctl function by introducing the following key updates: - Moved the logic for managing the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: dm ioctl: prevents potential Spectre v1 exploits. It seems that cmd could be a Spectre v1 exploit, as it is provided by a user and used as an array index. This vulnerability prevents the contents of kernel memory from being leake...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: validate userq input args. This will assist in validating the userq input arguments and rejecting invalid userq requests during IOCTLs...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: cifs: preventing incorrect output lengths in smb2ioctlqueryinfo When calling smb2ioctlqueryinfo with smbqueryinfo::flags=PASSTHRUFSCTL and smbqueryinfo::outputbufferlength=0, the following value of 0x10 will be returned. c buffer...

Astra Linux – Vulnerability in Linux, Linux 5.10

A race condition was identified in the vtkioctl function within drivers/tty/vt/vtioctl.c in the Linux kernel. This may lead to an out-of-bounds read, as the write access to vcmode is not protected by a lock in vtioctl KDSETMDE. The primary threat of this vulnerability is data confidentiality...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a use-after-free after failing to create a snapshot. In ioctl.c’s createsnapshot function, we allocate a pending snapshot structure and then attach it to the transaction’s list of pending snapshots. After that, we ca...

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

In the drivers/md/dm-ioctl.c file of the Linux kernel, up to version 6.7.1, copyparams may attempt to allocate more than INTMAX bytes, resulting in a crash due to the absence of the paramkernel-datasize check. This issue is related to ctlioctl...

Astra Linux – Vulnerability in Linux, Linux 5.10

A use-after-free flaw was discovered in the Linux kernel’s SGI GRU driver. This flaw arises from the way the grufileunlockedioctl function is called by the user, resulting in a failure in the grucheckchipletassignment function. This flaw allows a local user to cause a system crash or potentially...

GHSA-FJQ3-FFVR-VM46 OpenTelemetry eBPF Instrumentation: Java TLS ioctl kprobe allows kernel memory disclosure

Summary The Java TLS ioctl probe reads user-controlled ioctl pointers with bpfproberead instead of bpfprobereaduser. An instrumented local process can therefore point OBI at kernel memory and cause that memory to be copied into telemetry. Details The vulnerable path is in...

OpenTelemetry eBPF Instrumentation: Java TLS ioctl kprobe allows kernel memory disclosure

Summary The Java TLS ioctl probe reads user-controlled ioctl pointers with bpfproberead instead of bpfprobereaduser. An instrumented local process can therefore point OBI at kernel memory and cause that memory to be copied into telemetry. Details The vulnerable path is in...

PT-2026-41788

Name of the Vulnerable Software and Affected Versions OpenTelemetry eBPF Instrumentation versions prior to 0.9.0 Description The Java TLS ioctl probe incorrectly uses the bpf probe read function instead of bpf probe read user when reading user-controlled ioctl pointers. This occurs within the do...