CVE-2025-38036

In the Linux kernel, the following vulnerability has been resolved:

drm/xe/vf: Perform early GT MMIO initialization to read GMDID

VFs need to communicate with the GuC to obtain the GMDID value
and existing GuC functions used for that assume that the GT has
it's MMIO members already setup. However, due to recent refactoring
the gt->mmio is initialized later, and any attempt by the VF to use
xe_mmio_read|write() from GuC functions will lead to NPD crash due
to unset MMIO register address:

[] xe 0000:00:02.1: [drm] Running in SR-IOV VF mode
[] xe 0000:00:02.1: [drm] GT0: sending H2G MMIO 0x5507
[] BUG: unable to handle page fault for address: 0000000000190240

Since we are already tweaking the id and type of the primary GT to
mimic it's a Media GT before initializing the GuC communication,
we can also call xe_gt_mmio_init() to perform early setup of the
gt->mmio which will make those GuC functions work again.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
UNKNOWN
---
LinuxCNA
---
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
not-affected
bookworm
6.1.137-1
not-affected
bullseye (security)
5.10.237-1
fixed
bookworm (security)
6.1.140-1
fixed
trixie (security)
vulnerable
sid
vulnerable
trixie
vulnerable
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Ubuntu Releases
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Codename
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dne
focal
dne
bionic
ignored
xenial
ignored
trusty
dne
linux-oem-5.6
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.10
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.13
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.14
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.17
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.0
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.1
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.8
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.11
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-6.14
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi2
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
ignored
xenial
ignored
trusty
dne
linux-raspi-5.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
linux-raspi-realtime
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv
plucky
needed
oracular
ignored
noble
ignored
jammy
ignored
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.11
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.15
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-riscv-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-5.19
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-6.2
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-starfive-6.5
plucky
dne
oracular
dne
noble
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-xilinx-zynqmp
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux
plucky
needed
oracular
ignored
noble
needed
jammy
needed
focal
ignored
bionic
ignored
xenial
ignored
trusty
ignored
linux-aws
plucky
needed
oracular
ignored
noble
needed
jammy
needed
focal
ignored
bionic
ignored
xenial
ignored
trusty
ignored
linux-oracle
plucky
needed
oracular
ignored
noble
needed
jammy
needed
focal
ignored
bionic
ignored
xenial
ignored
trusty
dne
linux-raspi
plucky
needed
oracular
ignored
noble
needed
jammy
needed
focal
ignored
bionic
dne
xenial
dne
trusty
dne
linux-realtime
plucky
needed
oracular
ignored
noble
needed
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-intel
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-riscv-6.14
plucky
dne
oracular
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-ibm-6.8
plucky
dne
oracular
dne
noble
dne
jammy
needed
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-aws-6.14
plucky
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-gcp-6.14
plucky
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe-6.14
plucky
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
linux-oracle-6.14
plucky
dne
noble
needed
jammy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne