Linux kernel vmclock_miscdev_mmap Heap Buffer Overflow DoS

The vulnerability of the vmclockmiscdevmmap function in the drivers/ptp/ptpvmclock.c file of Linux kernel operating systems is related to incorrect execution permissions. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility of protect...

CVE-2026-80724: Undefined Security Weakness

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: Undefined Security Weakness

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...