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...

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...

CVE-2025-21822 ptp: vmclock: Set driver data before its usage

In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: Set driver data before its usage If vmclockptpregister fails during probing, vmclockremove is called to clean up the ptp clock and misc device. It uses devgetdrvdata to access the vmclock state. However the driver...