In the Linux kernel, the following vulnerability has been resolved:
drm/amd/pm: Update intermediate power state for SI Update the current state
as boot state during dpm initialization. During the subsequent
initialization, set_power_state gets called to transition to the final
power state. set_power_state refers to values from the current state and
without current state populated, it could result in NULL pointer
dereference. For ex: on platforms where PCI speed change is supported
through ACPI ATCS method, the link speed of current state needs to be
queried before deciding on changing to final power state’s link speed. The
logic to query ATCS-support was broken on certain platforms. The issue
became visible when broken ATCS-support logic got fixed with commit
f9b7f3703ff9 (“drm/amdgpu/acpi: make ATPX/ATCS structures global (v2)”).
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1698
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 14.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
git.kernel.org/linus/ab39d3cef526ba09c4c6923b4cd7e6ec1c5d4faa (5.15-rc3)
git.kernel.org/stable/c/06a18e64256f7aecb5a27df02faa3568fcd3c105
git.kernel.org/stable/c/68d4fbe6220cd1f3d07cab0a4901e62f8c12cc68
git.kernel.org/stable/c/ab39d3cef526ba09c4c6923b4cd7e6ec1c5d4faa
launchpad.net/bugs/cve/CVE-2021-47362
nvd.nist.gov/vuln/detail/CVE-2021-47362
security-tracker.debian.org/tracker/CVE-2021-47362
www.cve.org/CVERecord?id=CVE-2021-47362