USN-8761-1 linux-azure vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute Acceleration Framework; - Drivers core;...

CVE-2026-58701: Concurrent Execution using Shared Resource with Improper Synchronization

In trustydputc of generic-arm64-smcall.c, there is a possible out-of-bounds write due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation...

PT-2026-92362

In ARM64 TLBI of mmu.h, there is a possible memory corruption due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: arm64/sme: Always exit smealloc early with existing storage When smealloc is called with existing storage and we do not flush it, we will always allocate new storage, resulting in the loss of the existing storage and corruption o...

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: arm64: probes: Removed the broken LDR literal uprobe support. The simulateldrliteral and simulateldrswliteral functions are unsafe to use for uprobes. Both functions were originally designed for use with kprobes, and accessed...

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: arm64: probes: Fixed the uprobes for big-endian kernels The arm64 uprobes code is broken for big-endian kernels because it does not convert the in-memory instruction encoding which is always little-endian into the kernel’s...

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: arm64: cacheinfo: Avoid out-of-bounds write to the cacheinfo array The loop that detects/populates cache information already includes a check on the array size. However, it does not take into account cache levels with separate...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Destroying vGIC structures during failed vCPU creation If the function kvmarchvcpucreate fails to share the vCPU page with the hypervisor, we propagate the error back to the ioctl, but leave the vGIC vCPU structures...

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: arm64: bpf: Added BHB mitigation to the epilogue for cBPF programs. A malicious BPF program may manipulate the branch history to influence what the hardware speculates will happen next. Upon exiting a cBPF program, the BHB...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: arm64: ftrace: fixed module PLTs with mcount Li Huafei reports that the ftrace with module PLTs based on mcount was broken by the commit: a6253579977e4c6f “arm64: ftrace: consistently handle PLTs.” When module PLTs are used and a...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: ftrace: Do not blindly read the IP address in ftracebug. It was reported that a bug in arm64 caused a bad IP address to be used for updating a NOP instruction in ftraceinit. However, the error path correctly returned -EINVAL...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: arm64: topology: Fix for a potential overflow in amufiesetup. The function cpufreqgetHWmaxfreq returns the maximum frequency in kHz as an unsigned int. However, the function freqinvsetmaxratio receives this frequency in Hz as an...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: padata: The handling of refcnts in padatafreeshell has been fixed. In a high-load Arm64 environment, the pcryptaead01 test in LTP can lead to system UAF Use-After-Free issues. Due to the lengthy analysis of the pcryptaead01...

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

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache There is a potential UAF scenario in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: crypto: arm64/neonbs – fixed an issue of out-of-bounds access due to short inputs. The bit-sliced implementation of AES-CTR operates on blocks of 128 bytes. For tail blocks or inputs that are shorter than 128 bytes, it will fall...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: arm64: hibernate: Fixed the level3 translation fault in swsuspsave On arm64 machines, swsuspsave fails if it attempts to access MEMBLOCKNOMAP memory ranges. This issue can be reproduced in QEMU using UEFI when booting with...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: arm64: The issue was fixed in the concurrently setting of insnemulation sysctls. The emulationprochandler function changes table-data for procdointvecminmax. However, it may cause an OOPs error if called concurrently with itself:...

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: arm64: csum: Fixed an issue with OoB access in the IP checksum code for negative lengths. Although the commit c2c24edb1d9c “arm64: csum: Fix pathological zero-length calls” added an early return for zero-length inputs, syzkaller...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Misc: pciendpointtest: Fixed the panic that occurs when calling pciendpointtestcopy,write,read The dmamapsingle function does not allow zero-length mappings. This causes a panic. A panic was reported on the arm64 architecture:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: arm64/fpsimd: Signal: Allocate SSVE storage when restoring ZA The code used to restore a ZA context does not attempt to allocate the task’s svestate before setting TIFSME. As a result, restoring a ZA context may place the task in...