Updated: 2024-09-13 03:33:35.351948
Description:
In the Linux kernel, the following vulnerability has been resolved: iommu: Return right value in iommu_sva_bind_device() iommu_sva_bind_device() should return either a sva bond handle or an ERR_PTR value in error cases. Existing drivers (idxd and uacce) only check the return value with IS_ERR(). This could potentially lead to a kernel NULL pointer dereference issue if the function returns NULL instead of an error pointer. In reality, this doesn't cause any problems because iommu_sva_bind_device() only returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA. In this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will return an error, and the device drivers won't call iommu_sva_bind_device() at all.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | NONE | 0 |
| CVSS Version 3.x | MEDIUM | 4.4 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 4.4 | MEDIUM | Needs Triage | 2024-11-12 04:33:43 | ||
| AlmaLinux 9.2 FIPS | kernel | 5.14.0 | 4.4 | MEDIUM | Ignored | 2024-11-14 04:33:34 | ||
| Ubuntu 16.04 ELS | linux | 4.4.0 | 4.4 | MEDIUM | Ignored | 2024-09-13 12:18:14 | ||
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 4.4 | MEDIUM | Released | CLSA-2024:1727817159 | 2024-10-01 17:25:31 | |
| Ubuntu 18.04 ELS | linux | 4.15.0 | 4.4 | MEDIUM | Released | CLSA-2024:1727817133 | 2024-10-01 17:33:23 |