AZL-101334 CVE-2026-89793 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: ublk: clear VMMAYWRITE on read-only ublk char device mmap ublkchmmap rejects mmap requests with VMWRITE set, but never clears VMMAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue...

DEBIAN-CVE-2026-89793

In the Linux kernel, the following vulnerability has been resolved: ublk: clear VMMAYWRITE on read-only ublk char device mmap ublkchmmap rejects mmap requests with VMWRITE set, but never clears VMMAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue...

CVE-2026-89793

CVE-2026-89793 affects the Linux kernel ublk subsystem. The function ublk_ch_mmap() rejects mmap requests with VM_WRITE set but fails to clear VM_MAYWRITE on the resulting read-only mapping. An unprivileged userspace daemon can exploit this by mapping the per-queue command buffer with PROT_READ a...

CVE-2026-89793 ublk: clear VM_MAYWRITE on read-only ublk char device mmap

In the Linux kernel, the following vulnerability has been resolved: ublk: clear VMMAYWRITE on read-only ublk char device mmap ublkchmmap rejects mmap requests with VMWRITE set, but never clears VMMAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue...

EUVD-2026-80589

In the Linux kernel, the following vulnerability has been resolved: ublk: clear VMMAYWRITE on read-only ublk char device mmap ublkchmmap rejects mmap requests with VMWRITE set, but never clears VMMAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue...

CVE-2026-89793 ublk: clear VM_MAYWRITE on read-only ublk char device mmap

In the Linux kernel, the following vulnerability has been resolved: ublk: clear VMMAYWRITE on read-only ublk char device mmap ublkchmmap rejects mmap requests with VMWRITE set, but never clears VMMAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue...

kernel: selinux: fix overlayfs mmap() and mprotect() access checks

A flaw was found in the Linux kernel's SELinux security module when handling overlayfs. The existing security model for overlayfs does not properly enforce access controls for mmap and mprotect operations. This oversight could allow a local attacker to bypass intended security policies, potential...

kernel: selinux: fix overlayfs mmap() and mprotect() access checks

A flaw was found in the Linux kernel's SELinux security module when handling overlayfs. The existing security model for overlayfs does not properly enforce access controls for mmap and mprotect operations. This oversight could allow a local attacker to bypass intended security policies, potential...

Linux Distros Unpatched Vulnerability : CVE-2026-89793

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ublk: clear VMMAYWRITE on read-only ublk char device mmap ublkchmmap rejects mmap requests with VMWRITE set, but never clears VMMAYWRITE on the resulting...

PT-2026-93430

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ublk ch mmap function where it fails to clear the VM MAYWRITE flag on read-only mappings. This allows an unprivileged userspace daemon to map the per-queue command...

CVE-2026-89793: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ublk: clear VMMAYWRITE on read-only ublk char device mmap ublkchmmap rejects mmap requests with VMWRITE set, but never clears VMMAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue...

SUSE CVE-2026-72180

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: preserve pmdswpuffdwp on device-private PMD downgrade changenonpresenthugepmd rewrites a writable device-private PMD swap entry into a readable one without carrying pmdswpuffdwp across. The PTE-level...

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...

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...

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 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...