Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a strict alignment checking issue in the createcache function in the slab subsystem...

PT-2024-35673 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to an alignment failure at max n shift in the iommu/tegra241-cmdqv component of the Linux kernel. When configuring a kernel with PAGE SIZE=4KB, depending on its...

GHSA-F7QJ-V3VP-4856 libafl has unsound usages of `core::slice::from_raw_parts_mut`

The library breaks the safety assumptions when using unsafe API slice::fromrawpartsmut. The pointer passed to fromrawpartsmut is misaligned by casting u8 to u16 raw pointer directly, which is unsound. The bug is patched by using alignoffset, which could make sure the memory address is aligned to ...

kernel: KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Ignore nCR34:0 when loading PDPTEs from memory Ignore nCR34:0 when loading PDPTEs from memory for nested SVM, as bits 4:0 of CR3 are ignored when PAE paging is used, and thus VMRUN doesn't enforce 32-byte alignment of...

PT-2024-40967 · Libafl · Libafl

Name of the Vulnerable Software and Affected Versions: LibAFL versions prior to 0.11.2 Description: The issue arises from the misuse of the slice::from raw parts mut API, where a pointer is misaligned due to a direct cast from u8 to u16 raw pointer, leading to unsound behavior. The problem is...

Steps to TruRisk—Insight to Action with VMDR

Shifting from Vulnerability Management to Business-Focused Risk Reduction In cybersecurity, numbers can be deceptive. The sheer volume of vulnerabilities does not equate to risk. Instead, resilience depends on understanding which vulnerabilities pose the greatest threat to your business—and actin...

CVE-2024-53144

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Align BR/EDR JUSTWORKS paring with LE This aligned BR/EDR JUSTWORKS method with LE which since 92516cd97fd4 "Bluetooth: Always request for user confirmation for Just Works" always request user confirmation wi...

CVE-2024-53144 Bluetooth: hci_event: Align BR/EDR JUST_WORKS paring with LE

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Align BR/EDR JUSTWORKS paring with LE This aligned BR/EDR JUSTWORKS method with LE which since 92516cd97fd4 "Bluetooth: Always request for user confirmation for Just Works" always request user confirmation wi...

Even Great Companies Get Breached — Find Out Why and How to Stop It

Even the best companies with the most advanced tools can still get hacked. It's a frustrating reality: you've invested in the right solutions, trained your team, and strengthened your defenses. But breaches still happen. So, what's going wrong? The truth is, that attackers are constantly finding...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a problem with the pairing alignment method that affects Bluetooth pairing functionality...

DEBIAN-CVE-2024-53065

In the Linux kernel, the following vulnerability has been resolved: mm/slab: fix warning caused by duplicate kmemcache creation in kmembucketscreate Commit b035f5a6d852 "mm: slab: reduce the kmalloc minimum alignment if DMA bouncing possible" reduced ARCHKMALLOCMINALIGN to 8 on arm64. However, wi...

UBUNTU-CVE-2024-53065

In the Linux kernel, the following vulnerability has been resolved: mm/slab: fix warning caused by duplicate kmemcache creation in kmembucketscreate Commit b035f5a6d852 "mm: slab: reduce the kmalloc minimum alignment if DMA bouncing possible" reduced ARCHKMALLOCMINALIGN to 8 on arm64. However, wi...

kernel: swiotlb: Fix double-allocation of slots due to broken alignment handling

In the Linux kernel, the following vulnerability has been resolved: swiotlb: Fix double-allocation of slots due to broken alignment handling The Linux kernel CVE team has assigned CVE-2024-35814 to this issue. Upstream advisory:...

Mimalloc Can Allocate Memory with Bad Alignment

This crate depended on a promise regarding alignments made by the author of the mimalloc allocator to avoid using aligned allocation functions where possible for performance reasons. Since then, the mimalloc allocator's logic changed, making it break this promise. This caused this crate to return...

GHSA-G23H-7VF9-XC25 Mimalloc Can Allocate Memory with Bad Alignment

This crate depended on a promise regarding alignments made by the author of the mimalloc allocator to avoid using aligned allocation functions where possible for performance reasons. Since then, the mimalloc allocator's logic changed, making it break this promise. This caused this crate to return...

kernel: powerpc/kasan: Fix addr error caused by page alignment

In the Linux kernel, the following vulnerability has been resolved: powerpc/kasan: Fix addr error caused by page alignment In kasaninitregion, when kstart is not page aligned, at the begin of for loop, kcur = kstart & PAGEMASK is less than kstart, and then va = block + kcur - kstart is less than...

kernel: arm64: asm-bug: Add .align 2 to the end of __BUG_ENTRY

In the Linux kernel, the following vulnerability has been resolved: arm64: asm-bug: Add .align 2 to the end of BUGENTRY When CONFIGDEBUGBUGVERBOSE=n, we fail to add necessary padding bytes to bugtable entries, and as a result the last entry in a bug table will be ignored, potentially leading to a...

kernel: mm: huge_memory: use !CONFIG_64BIT to relax huge page alignment on 32 bit machines

In the Linux kernel, the following vulnerability has been resolved: mm: hugememory: use !CONFIG64BIT to relax huge page alignment on 32 bit machines Yves-Alexis Perez reported commit 4ef9ad19e176 "mm: hugememory: don't force huge page alignment on 32 bit" didn't work for x8632 1. It is because...

kernel: swiotlb: Fix double-allocation of slots due to broken alignment handling

In the Linux kernel, the following vulnerability has been resolved: swiotlb: Fix double-allocation of slots due to broken alignment handling The Linux kernel CVE team has assigned CVE-2024-35814 to this issue. Upstream advisory:...

kernel: x86/mm: Fix pti_clone_pgtable() alignment assumption

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix pticlonepgtable alignment assumption Guenter reported dodgy crashes on an i386-nosmp build using GCC-11 that had the form of endless traps until entry stack exhaust and then DF from the stack guard. It turned out that...