CVE-2026-90427: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 преди ea2edb27ef2648d8687cd0fc3ec3ba1793436e7e; 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 преди 268cbe3a36ae57a2ec09601f343b92f6f092d505; 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 преди 86197679b293f0601c3331d545f99a70a7780aa9; 918eb5c856f6ce4cf93b4b38e4b5e156905c5943 преди d4d05f55e9da646ec03adfa77260eb46f4163749
• Linux Linux: 6.12; преди 6.12; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-90427
• https://nvd.nist.gov/vuln/detail/CVE-2026-90427
• https://git.kernel.org/stable/c/ea2edb27ef2648d8687cd0fc3ec3ba1793436e7e
• https://git.kernel.org/stable/c/268cbe3a36ae57a2ec09601f343b92f6f092d505
• https://git.kernel.org/stable/c/86197679b293f0601c3331d545f99a70a7780aa9
• https://git.kernel.org/stable/c/d4d05f55e9da646ec03adfa77260eb46f4163749