CVE-2026-90427
- Source
- https://cve.org/CVERecord?id=CVE-2026-90427
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90427.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-90427
- Downstream
- Published
- 2026-09-17T16:09:49Z
- Modified
- 2026-09-20T11:30:54Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- iommu/tegra241-cmdqv: Don't fall back to a freed smmu after devm_krealloc()
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90427.json" }- References
-
- https://git.kernel.org/stable/c/86197679b293f0601c3331d545f99a70a7780aa9
- https://git.kernel.org/stable/c/d4d05f55e9da646ec03adfa77260eb46f4163749
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90427.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-90427
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git