Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquiring SRCU in KVMGETMPSTATE to protect guest memory accesses Acquiring a lock on kvm-srcu when userspace is obtaining the MP state can lead to a severe edge case where processing APIC events, such as during pending...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: bpf: copyverifierstate should copy 'loopentry' field The bpfverifierstate.loopentry state should be copied by copyverifierstate. Otherwise, .loopentry values from unrelated states would poison env-curstate. Additionally, env-stac...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: In the mm, slab context, slab-objexts should always be cleaned up after allocation. When memory allocation profiling is disabled at runtime or due to an error, the shutdownmemprofiling function is called. In this case, slab-objex...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: preventing a hang during link training failure Why When link training fails, the phy clock will be disabled. However, in “enablestreams”, it is assumed that link training was successful, and the mux selects the p...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: KVM: arm64: Unconditionally save+flush host FPSIMD/SVE/SME state There are several issues with the way the hyp code lazily saves the host’s FPSIMD/SVE state. These include: The host SVE state is unexpectedly discarded due to...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: Firewire: In the kunit test, a potential null dereference issue has been fixed. The kunitkzalloc function may return a NULL pointer. Dereferencing this pointer without a NULL check may lead to a NULL dereference error. A NULL...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: xfrm: State: fixed an out-of-bounds read during lookup. Lookup and resizing can operate in parallel. The xfrmstatehashgeneration seqlock ensures a retry mechanism, but the hash functions may encounter a hmask value that is too...

Astra Linux – Vulnerability in Intel Microcode

Improper Finite State Machines FSMs in hardware logic for certain Intel processors may allow privileged users to potentially exploit the system to cause denial of service through local access...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Only disable IRQ1 wakeup when i8042 actually enables it. The IRQ1 wakeup should be disabled only in cases where i8042 has actually enabled it. Otherwise, “wakedepth” for this IRQ will attempt to drop below...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: smb/server: fixed a potential null-ptr-deref of leasectxinfo in smb2open A null-ptr-deref will occur when reqoplevel == SMB2OPLOCKLEVELLEASE and parseleasestate returns NULL. This issue was fixed by checking whether...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: The program exits after a state insertion failure at btrfsconvertextentbit. If the insertstate function fails, it returns an error pointer. We then call extentiotreepanic, which will trigger a BUG. However, if CONFIGBUG is...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: phy: tegra: xusb: Use a bitmask for UTMI pad power state tracking The current implementation uses biasPadEnable as a reference count to manage the shared bias pad for all UTMI PHYs. However, during system suspension with connecte...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: arm64/fpsimd: Avoid clobbering the kernel’s FPSIMD state with SMSTOP. On systems with SME Savage Mode Enforcement, the kernel’s FPSIMD state may be erroneously clobbered during a context switch immediately after that state is...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: net: phy: It is now possible to allow the MDIO bus’s PM operations to initiate/stop the state machine for the phylink-controlled PHY. There are two types of DSA drivers: 1. Those that call dsaswitchsuspend and dsaswitchresume...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: nilfs2: Do not force clear the buffer if it is referenced. The patch series “nilfs2: Protect busy buffer heads from being forced to be cleared” addresses this issue. This patch fixes the inconsistency in buffer head states report...

Astra Linux – Vulnerability in Intel Microcode

Improper finite state machines FSMs in hardware logic of certain Intel processors may allow a privileged user to potentially exploit a denial of service attack through local access...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: NFSD: fixed a hang issue in nfsd4shutdowncallback. If nfs4client is in the courtesy state, there is no point in sending the callback. This causes nfsd4shutdowncallback to hang, as clcbinflight is not set to 0. This hang lasts...

Astra Linux – Vulnerability in Intel Microcode

The exposure of sensitive information due to shared microarchitectural predictor states, which affect transient execution for some IntelR Core™ processors 10th generation, may allow an authenticated user to potentially disclose information through local access...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fixed warnings during S3 suspension The enablegpewakeup function calls acpienableallwakeupgpes, and this function may also call the preemptschedulecommon function. This results in a thread switch, causing the CPU to be...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: hrtimers: Properly handle CPU state during hotplug events. Consider a scenario where a CPU transitions from CPUHPONLINE to CPUHPHRTIMERSPREPARE after being hot-unplugged, and then back to CPUHPONLINE. Since the...