CVE-2026-90388

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/dma: Check atomic pool allocation result directly The non-blocking, non-coherent allocation path uses dma_alloc_from_pool(), which returns the allocated page and fills cpu_addr only on success. Do not rely on cpu_addr to detect allocation failure in this path. Check the returned page directly before using it for the IOMMU mapping.

References

• https://git.kernel.org/stable/c/06dffc96693083dda3412311406e558cf27f1574
• https://git.kernel.org/stable/c/8c486293ddd0af60991408149fc3e964ea888dc4
• https://git.kernel.org/stable/c/a4ace31d732b657d774e31fb444c0c27d42c78e5
• https://git.kernel.org/stable/c/ac9cd0a669b8be5d178dbd471b0d68039dac58b5
• https://git.kernel.org/stable/c/af95a0ebc0a0db0762be75f51eadf770bad01aaa