CVE-2026-64234
tty: serial: pch_uart: add check for dma_alloc_coherent()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 24, 2026 |
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Affected Versions
Linux / Linux
3c6a483275f47a2ef7119309ad3d791c10cf30da < 760df81763b391bb5f0dcb0b7597b736da753ae4 3c6a483275f47a2ef7119309ad3d791c10cf30da < 5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf 3c6a483275f47a2ef7119309ad3d791c10cf30da < daea997bb244aeb50cbb2e5e075fb446a6cf068f 3c6a483275f47a2ef7119309ad3d791c10cf30da < 6dd5c0ea139b586ad5a091677056dafd405cfe82 3c6a483275f47a2ef7119309ad3d791c10cf30da < d846df2dfbc2469a688833b4cc4f8aa80672bde8 3c6a483275f47a2ef7119309ad3d791c10cf30da < 66f8bfea055b23719b4fd6ce207c44de37d82a59 3c6a483275f47a2ef7119309ad3d791c10cf30da < d8d53a343ebe74274ca17b1e1993042e99f8c863 3c6a483275f47a2ef7119309ad3d791c10cf30da < 6fe472c1bbbe238e91141f7cabc1226e96a60d43
Linux / Linux
2.6.38
References
git.kernel.org: https://git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4 git.kernel.org: https://git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf git.kernel.org: https://git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f git.kernel.org: https://git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82 git.kernel.org: https://git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8 git.kernel.org: https://git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59 git.kernel.org: https://git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863 git.kernel.org: https://git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43