Medium severity5.5NVD Advisory· Published Jul 24, 2026· Updated Aug 12, 2026
CVE-2026-64234
CVE-2026-64234
Description
In the Linux kernel, the following vulnerability has been resolved:
tty: serial: pch_uart: add check for dma_alloc_coherent()
Add a check for dma_alloc_coherent() failure to prevent a potential NULL pointer dereference in dma_handle_rx(). Properly release DMA channels and the PCI device reference using a goto ladder if the allocation fails.
Affected products
21cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.38,<5.10.259
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
- (no CPE)
- osv-coords14 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0
>= 2.6.38, < 5.10.259+ 13 more
- (no CPE)range: >= 2.6.38, < 5.10.259
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1.160000.2.19
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bfnvdPatch
- git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59nvdPatch
- git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82nvdPatch
- git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43nvdPatch
- git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4nvdPatch
- git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8nvdPatch
- git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863nvdPatch
- git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068fnvdPatch
News mentions
1- Linux Kernel: 25 Vulnerabilities Across Subsystems Addressed in Coordinated July 2026 DisclosureVypr Intelligence · Jul 25, 2026