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.
References8
- git.kernel.org/stable/c/06dffc96693083dda3412311406e558cf27f1574
- git.kernel.org/stable/c/8c486293ddd0af60991408149fc3e964ea888dc4
- git.kernel.org/stable/c/a4ace31d732b657d774e31fb444c0c27d42c78e5
- git.kernel.org/stable/c/ac9cd0a669b8be5d178dbd471b0d68039dac58b5
- git.kernel.org/stable/c/af95a0ebc0a0db0762be75f51eadf770bad01aaa
- git.kernel.org/stable/c/d56c3f955b21e5764c1497e295a5b5d0b3a40470
- git.kernel.org/stable/c/db46cb9da83a507d86d2bb080bdb09c865da3d0a
- git.kernel.org/stable/c/fb0b39287ba894dbdfac2901c51788b63f5c2291
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 6 · as of 8 November 2026
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