CVE-2026-90388: high-severity vulnerability in Linux
iommu/dma: Check atomic pool allocation result directly
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
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References
https://git.kernel.org/stable/c/06dffc96693083dda3412311406e558cf27f1574https://git.kernel.org/stable/c/8c486293ddd0af60991408149fc3e964ea888dc4https://git.kernel.org/stable/c/a4ace31d732b657d774e31fb444c0c27d42c78e5https://git.kernel.org/stable/c/ac9cd0a669b8be5d178dbd471b0d68039dac58b5https://git.kernel.org/stable/c/af95a0ebc0a0db0762be75f51eadf770bad01aaahttps://git.kernel.org/stable/c/d56c3f955b21e5764c1497e295a5b5d0b3a40470https://git.kernel.org/stable/c/db46cb9da83a507d86d2bb080bdb09c865da3d0ahttps://git.kernel.org/stable/c/fb0b39287ba894dbdfac2901c51788b63f5c2291