Linux Distros Unpatched Vulnerability : CVE-2026-89742

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rapidio: mportcdev: fix use-after-free in dmareqfree dmareqfree acquires bufmutex through req-map, drops the mapping reference with krefput, and then dereferenc...

CVE-2026-89742

A flaw was found in the Linux kernel. A local user could exploit a use-after-free vulnerability in the dmareqfree function within the RapidIO mport character device interface. This flaw occurs when the dmareqfree function attempts to dereference a freed object after dropping the last reference to...

AZL-100718 CVE-2026-89742 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: rapidio: mportcdev: fix use-after-free in dmareqfree dmareqfree acquires bufmutex through req-map, drops the mapping reference with krefput, and then dereferences req-map again to unlock the mutex. If krefput drops the last...

CVE-2026-89742

In the Linux kernel, the following vulnerability has been resolved: rapidio: mportcdev: fix use-after-free in dmareqfree dmareqfree acquires bufmutex through req-map, drops the mapping reference with krefput, and then dereferences req-map again to unlock the mutex. If krefput drops the last...

DEBIAN-CVE-2026-89742

In the Linux kernel, the following vulnerability has been resolved: rapidio: mportcdev: fix use-after-free in dmareqfree dmareqfree acquires bufmutex through req-map, drops the mapping reference with krefput, and then dereferences req-map again to unlock the mutex. If krefput drops the last...

UBUNTU-CVE-2026-89742

In the Linux kernel, the following vulnerability has been resolved: rapidio: mportcdev: fix use-after-free in dmareqfree dmareqfree acquires bufmutex through req-map, drops the mapping reference with krefput, and then dereferences req-map again to unlock the mutex. If krefput drops the last...

CVE-2026-89742

CVE-2026-89742 is a use-after-free vulnerability in the Linux kernel's RapidIO mport character device driver , specifically in the dma_req_free() function. After kref_put() drops the last reference to a mapping and the mapping is freed by mport_release_mapping(), a subsequent mutex_unlock() deref...

CVE-2026-89742 rapidio: mport_cdev: fix use-after-free in dma_req_free()

In the Linux kernel, the following vulnerability has been resolved: rapidio: mportcdev: fix use-after-free in dmareqfree dmareqfree acquires bufmutex through req-map, drops the mapping reference with krefput, and then dereferences req-map again to unlock the mutex. If krefput drops the last...

EUVD-2026-76654

In the Linux kernel, the following vulnerability has been resolved: rapidio: mportcdev: fix use-after-free in dmareqfree dmareqfree acquires bufmutex through req-map, drops the mapping reference with krefput, and then dereferences req-map again to unlock the mutex. If krefput drops the last...

CVE-2026-89742: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: rapidio: mportcdev: fix use-after-free in dmareqfree dmareqfree acquires bufmutex through req-map, drops the mapping reference with krefput, and then dereferences req-map again to unlock the mutex. If krefput drops the last...