CVE-2026-75900

swtpm's SWTPM_NVRAM_CheckHeader() validates buffer length against sizeof(pointer) instead of sizeof(struct), allowing an undersized buffer to pass and cause a 2-byte heap overread (6 bytes on 32-bit). Impact: daemon termination and heap data leakage to logs. Red Hat reports no mitigation; fixed i...

CVE-2026-64293

In the Linux kernel, the following vulnerability has been resolved: iommufd: Use sizeofhdr instead of sizeofhdr in veventq read The bound-check in iommufdveventqfopsread for the normal vEVENT path uses sizeofhdr where the surrounding code uses sizeofhdr: if !veventforlosteventsheadercur &&...

Linux Distros Unpatched Vulnerability : CVE-2026-64293

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: iommufd: Use sizeofhdr instead of sizeofhdr in veventq read The bound-check in...

SUSE CVE-2026-53047

In the Linux kernel, the following vulnerability has been resolved: efi/capsule-loader: fix incorrect sizeof in phys array reallocation The krealloc call for capinfo-phys in eficapsulesetupinfo uses sizeofphysaddrt instead of sizeofphysaddrt, which might be causing an undersized allocation. The...

CVE-2026-53047

In the Linux kernel, the following vulnerability has been resolved: efi/capsule-loader: fix incorrect sizeof in phys array reallocation The krealloc call for capinfo-phys in eficapsulesetupinfo uses sizeofphysaddrt instead of sizeofphysaddrt, which might be causing an undersized allocation. The...

curl: Incorrect sizeof() in Rustls Backend Memory Allocation

Summary There's a bug in lib/vtls/rustls.c where malloc uses sizeofciphersuites instead of sizeofciphersuites. This allocates memory based on pointer size rather than element size. Steps To Reproduce 1. Look at lib/vtls/rustls.c line 530: c const struct rustlssupportedciphersuite ciphersuites =...

The vulnerability of the DB2 IBM DB2 High Performance Unload (Db2 HPU) table unloading utility lies in the use of the sizeof() function for pointers, which allows an attacker to trigger a service failure.

The vulnerability of the DB2 IBM DB2 High Performance Unload Db2 HPU table unloading utility is related to the use of the sizeof function on pointer types. Exploiting this vulnerability allows a malicious actor to cause service interruptions...

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 incorrectly comparing the peripheralsize to the configuration pointer size, which could cause the kernel to...

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 an unvalidated target dynptr size, which could lead to out-of-bounds writes...

CVE-2023-53327

In the Linux kernel, the following vulnerability has been resolved: iommufd/selftest: Catch overflow of uptr and length syzkaller hits a WARNON when trying to have a uptr close to UINTPTRMAX: WARNING: CPU: 1 PID: 393 at drivers/iommu/iommufd/selftest.c:403 iommufdtest+0xb19/0x16f0 Modules linked...

DEBIAN-CVE-2023-53327

In the Linux kernel, the following vulnerability has been resolved: iommufd/selftest: Catch overflow of uptr and length syzkaller hits a WARNON when trying to have a uptr close to UINTPTRMAX: WARNING: CPU: 1 PID: 393 at drivers/iommu/iommufd/selftest.c:403 iommufdtest+0xb19/0x16f0 Modules linked...

kernel: iommufd: Check for uptr overflow

A flaw was found in the iommufd subsystem of the Linux kernel. When setting up a mapping with a user virtual address that wraps past zero or otherwise triggers a pointer/size overflow, the kernel may fail to properly validate and constrain the user-provided values. This can result in a buffer...

Microsoft Edge Chakra: JIT - Lowerer::LowerBoundCheck Incorrect Integer Overflow Check

Microsoft Edge Chakra: JIT - Lowerer::LowerBoundCheck Incorrect Integer Overflow Check / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1343 Here's a snippet of the method. void Lowerer::LowerBoundCheckIR::Instr const instr ... ifrightOpnd-IsIntConstOpnd IntConstType newOffset;...

Microsoft Edge Chakra: JIT - 'Lowerer::LowerBoundCheck' Incorrect Integer Overflow Check

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1343 Here's a snippet of the method. void Lowerer::LowerBoundCheckIR::Instr const instr ... ifrightOpnd-IsIntConstOpnd IntConstType newOffset; if!IntConstMath::Addoffset, rightOpnd-AsIntConstOpnd-GetValue, &newOffset --- a offset...