USN-8179-4 linux-gcp-6.8 vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

CVE-2026-43265

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for x86 architectures. A local user or a malicious guest operating system could manipulate the virtual CPU vCPU state by injecting events while the vCPU is in a blocking state. This could lead to a spurious exit to userspace,...

CVE-2026-43240

A flaw was found in the Linux kernel's x86/kexec component. When a second-stage kernel is booted with a memory-limiting command, the Integrity Measurement Architecture IMA kexec buffer may be located outside the accessible memory range. This can lead to a kernel panic, effectively causing a Denia...

CVE-2026-43129

A flaw was found in the Linux kernel's Integrity Measurement Architecture IMA subsystem. When a second-stage kernel is booted via kexec with a memory-limiting command line, the IMA measurement buffer from the previous kernel may fall outside the new kernel's addressable memory. This out-of-bounds...

CVE-2026-43265

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ignore -EBUSY when checking nested events from vcpublock Ignore -EBUSY when checking nested events after exiting a blocking state while L2 is active, as exiting to userspace will generate a spurious userspace exit,...

CVE-2026-43258

In the Linux kernel, the following vulnerability has been resolved: alpha: fix user-space corruption during memory compaction Alpha systems can suffer sporadic user-space crashes and heap corruption when memory compaction is enabled. Symptoms include SIGSEGV, glibc allocator failures e.g...

CVE-2026-43129

In the Linux kernel, the following vulnerability has been resolved: ima: verify the previous kernel's IMA buffer lies in addressable RAM Patch series "Address page fault in imarestoremeasurementlist", v3. When the second-stage kernel is booted via kexec with a limiting command line such as "mem="...

CVE-2025-71286

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-topology: Correct the allocation size for bytes controls The size of the data behind of scontrol-ipccontroldata for bytes controls is: 1 sizeofstruct sofipc4controldata + // kernel only struct 2 sizeofstruct...

CVE-2026-43261 arm64: Add support for TSV110 Spectre-BHB mitigation

In the Linux kernel, the following vulnerability has been resolved: arm64: Add support for TSV110 Spectre-BHB mitigation The TSV110 processor is vulnerable to the Spectre-BHB Branch History Buffer attack, which can be exploited to leak information through branch prediction side channels. This...

CVE-2026-43240

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: add a sanity check on previous kernel's ima kexec buffer When the second-stage kernel is booted via kexec with a limiting command line such as "mem=", the physical range that contains the carried over IMA measurement...

CVE-2026-43240

CVE-2026-43240 concerns the Linux kernel (x86/kexec) where a second-stage kernel booted with a memory-limiting parameter (mem=…) may place the IMA kexec buffer outside the accessible RAM, causing a kernel panic. The vulnerability arises from a missing range validation for the carried IMA measurem...

CVE-2026-43240 x86/kexec: add a sanity check on previous kernel's ima kexec buffer

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: add a sanity check on previous kernel's ima kexec buffer When the second-stage kernel is booted via kexec with a limiting command line such as "mem=", the physical range that contains the carried over IMA measurement...

CVE-2026-43214

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Add SRCU protection for reading PDPTRs in getsregs2 Add SRCU read-side protection when reading PDPTR registers in getsregs2. Reading PDPTRs may trigger access to guest memory: kvmpdptrread - svmcachereg - loadpdptrs -...

CVE-2026-43129

In the Linux kernel, the following vulnerability has been resolved: ima: verify the previous kernel's IMA buffer lies in addressable RAM Patch series "Address page fault in imarestoremeasurementlist", v3. When the second-stage kernel is booted via kexec with a limiting command line such as "mem="...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from insufficient TLB invalidation during memory compression in the Alpha architecture. This...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the IMA measurement list buffer exceeding the truncated RAM range during kexec operations,...

Joern 4.0.534

Joern is the bug hunter's workbench. With this tool, you can uncover attack surface, sloppy coding practices, and variants of known vulnerabilities using an interactive code analysis shell. Joern supports C, C++, LLVM bitcode, x86 binaries via Ghidra, JVM bytecode via Soot, and Javascript...

PT-2026-37419

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the x86 shadow stacks implementation where the shstk pop sigframe function fails to check for errors returned by mmap read lock killable. This occurs because the...

Cisco ISE 安全漏洞

Cisco ISE is a NAC solution developed by the American company Cisco. It is used to manage access to network resources for endpoints, users, and devices in a zero-trust architecture. Cisco ISE has a security vulnerability that arises from observing error messages when calling affected API endpoint...

PT-2026-37598

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Alpha systems may experience sporadic user-space crashes and heap corruption when memory compaction is enabled. This issue is caused by insufficient TLB Translation Lookaside Buffer...