CVE-2024-42146

drm/xe: Add outer runtime_pm protection to xe_live_ktest@xe_dma_buf

Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Add outer runtime_pm protection to xe_live_ktest@xe_dma_buf Any kunit doing any memory access should get their own runtime_pm outer references since they don't use the standard driver API entries. In special this dma_buf from the same driver. Found by pre-merge CI on adding WARN calls for unprotected inner callers: <6> [318.639739] # xe_dma_buf_kunit: running xe_test_dmabuf_import_same_driver <4> [318.639957] ------------[ cut here ]------------ <4> [318.639967] xe 0000:4d:00.0: Missing outer runtime PM protection <4> [318.640049] WARNING: CPU: 117 PID: 3832 at drivers/gpu/drm/xe/xe_pm.c:533 xe_pm_runtime_get_noresume+0x48/0x60 [xe]

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.05%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/0888d15ea45ba8ef4508edd1123ea5ad95b58994	patch
https://git.kernel.org/stable/c/f9116f658a6217b101e3b4e89f845775b6fb05d9	patch

Frequently Asked Questions

What is the severity of CVE-2024-42146?: CVE-2024-42146 has been scored as a medium severity vulnerability.
How to fix CVE-2024-42146?: To fix CVE-2024-42146, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-42146 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-42146 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-42146?: CVE-2024-42146 affects Linux Linux, Linux Linux.

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