20 matches found
cve-writeups-and-pocs
CVE-2026-80724 PoC 与技术分析 CVE-2026-80724 — Linux 内核 ptp: vmclock: 防止只读映射变为可写 完整概念验证 + 技术分析 安全研究由 Abdifatah Suruur suruur 完成 — 独立发现的漏洞的 CVE 分析文章与 PoC 合集。 CVE ID : CVE-2026-80724 严重性 : 8.8（高危）— CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H 组件 : Linux 内核 drivers/ptp/ptpvmclock.c 发现与修复者 : Abdifatah...
SUSE CVE-2026-80724
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...
CVE-2026-80724
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...
UBUNTU-CVE-2026-80724
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...
CVE-2026-80724
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...
CVE-2026-80724 ptp: vmclock: prevent read-only mappings from becoming writable
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...
EUVD-2026-67460
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...
CVE-2026-80724
CVE-2026-80724 affects the Linux kernel's ptp/vmclock driver. The root cause is that vmclock_miscdev_mmap() rejects writable mappings of the shared vmclock ABI page with -EROFS but leaves VM_MAYWRITE set, allowing a guest to map the page read-only and then upgrade it to writable via mprotect(). T...
CVE-2026-80724 ptp: vmclock: prevent read-only mappings from becoming writable
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...
PT-2026-83024
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the vmclock miscdev mmap function within the drivers/ptp/ptp vmclock.c file. This flaw allows read-only mappings to become writable, which may impact the...
Linux Distros Unpatched Vulnerability : CVE-2026-80724
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but...
UBUNTU-CVE-2026-72279
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR KVM currently maps the L1 VNCR into the host stage-1 by relying entirely on the permissions of the guest stage-1. At the same time, it is entirely possible that the backi...
SUSE CVE-2026-68445
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Prevent shader BO mappings from becoming writable vc4gemobjectmmap rejects a writable mapping of a validated shader BO, but leaves VMMAYWRITE set. Userspace can map the BO read-only and then turn it writable with mprotec...
DEBIAN-CVE-2026-68445
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Prevent shader BO mappings from becoming writable vc4gemobjectmmap rejects a writable mapping of a validated shader BO, but leaves VMMAYWRITE set. Userspace can map the BO read-only and then turn it writable with mprotec...
CVE-2026-68445 drm/vc4: Prevent shader BO mappings from becoming writable
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Prevent shader BO mappings from becoming writable vc4gemobjectmmap rejects a writable mapping of a validated shader BO, but leaves VMMAYWRITE set. Userspace can map the BO read-only and then turn it writable with mprotec...
PT-2026-70959
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the drm/vc4 component where the vc4 gem object mmap function fails to clear the VM MAYWRITE flag when rejecting a writable mapping of a validated shader BO Buffer...
CVE-2026-43433
In the Linux kernel, the following vulnerability has been resolved: rustbinder: avoid reading the written value in offsets array When sending a transaction, its offsets array is first copied into the target proc's vma, and then the values are read back from there. This is normally fine because th...
kernel: cifs: fix oops during encryption
An out-of-bounds memory access vulnerability exists in the linux kernel, such that A stack-allocated buffer backed by vmalloc was passed into crypto code scatterwalkmapandcopy → memcpy where a cross-page write occurred. This ended up hitting a read-only mapping, causing a page-level fault and...