CVE-2026-90427
iommu/tegra241-cmdqv: Don't fall back to a freed smmu after devm_krealloc()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Don't fall back to a freed smmu after devm_krealloc() __tegra241_cmdqv_probe() uses devm_krealloc() to grow @smmu into the larger tegra241_cmdqv, which frees the original @smmu once it relocates. A failure after that returned NULL, and the caller then dereferenced the freed @smmu on its fallback path. Return an int and take @smmu by reference instead, then update *smmu to the reallocated pointer after devm_krealloc() succeeds, so the caller and its fallback path both use the live @smmu rather than the freed original.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < 86197679b293f0601c3331d545f99a70a7780aa9 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 < d4d05f55e9da646ec03adfa77260eb46f4163749
Linux / Linux
6.12