CVE-2026-64234

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux3c6a483275f47a2ef7119309ad3d791c10cf30da < 760df81763b391bb5f0dcb0b7597b736da753ae4affected
LinuxLinux3c6a483275f47a2ef7119309ad3d791c10cf30da < 5f2e2a240dc1846e049bc67e9c3cdf5b031d08bfaffected
LinuxLinux3c6a483275f47a2ef7119309ad3d791c10cf30da < daea997bb244aeb50cbb2e5e075fb446a6cf068faffected
LinuxLinux3c6a483275f47a2ef7119309ad3d791c10cf30da < 6dd5c0ea139b586ad5a091677056dafd405cfe82affected
LinuxLinux3c6a483275f47a2ef7119309ad3d791c10cf30da < d846df2dfbc2469a688833b4cc4f8aa80672bde8affected
LinuxLinux3c6a483275f47a2ef7119309ad3d791c10cf30da < 66f8bfea055b23719b4fd6ce207c44de37d82a59affected
LinuxLinux3c6a483275f47a2ef7119309ad3d791c10cf30da < d8d53a343ebe74274ca17b1e1993042e99f8c863affected
LinuxLinux3c6a483275f47a2ef7119309ad3d791c10cf30da < 6fe472c1bbbe238e91141f7cabc1226e96a60d43affected
LinuxLinux2.6.38affected
LinuxLinux0 < 2.6.38unaffected
LinuxLinux5.10.259 <= 5.10.*unaffected
LinuxLinux5.15.210 <= 5.15.*unaffected
LinuxLinux6.1.176 <= 6.1.*unaffected
LinuxLinux6.6.143 <= 6.6.*unaffected
LinuxLinux6.12.93 <= 6.12.*unaffected
LinuxLinux6.18.35 <= 6.18.*unaffected
LinuxLinux7.0.12 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References