CVE-2024-50266

clk: qcom: videocc-sm8350: use HW_CTRL_TRIGGER for vcodec GDSCs

Medium · published November 19, 2024

CVSS v3.1
5.5
EPSS
0%
Percentile
9.1
In the wild
Unconfirmed
What it is

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

clk: qcom: videocc-sm8350: use HW_CTRL_TRIGGER for vcodec GDSCs

A recent change in the venus driver results in a stuck clock on the

Lenovo ThinkPad X13s, for example, when streaming video in firefox:

video_cc_mvs0_clk status stuck at 'off'

WARNING: CPU: 6 PID: 2885 at drivers/clk/qcom/clk-branch.c:87 clk_branch_wait+0x144/0x15c

...

Call trace:

clk_branch_wait+0x144/0x15c

clk_branch2_enable+0x30/0x40

clk_core_enable+0xd8/0x29c

clk_enable+0x2c/0x4c

vcodec_clks_enable.isra.0+0x94/0xd8 [venus_core]

coreid_power_v4+0x464/0x628 [venus_core]

vdec_start_streaming+0xc4/0x510 [venus_dec]

vb2_start_streaming+0x6c/0x180 [videobuf2_common]

vb2_core_streamon+0x120/0x1dc [videobuf2_common]

vb2_streamon+0x1c/0x6c [videobuf2_v4l2]

v4l2_m2m_ioctl_streamon+0x30/0x80 [v4l2_mem2mem]

v4l_streamon+0x24/0x30 [videodev]

using the out-of-tree sm8350/sc8280xp venus support. [1]

Update also the sm8350/sc8280xp GDSC definitions so that the hw control

mode can be changed at runtime as the venus driver now requires.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00198 · 9.1th percentile
Published
2024-11-19T01:30Z
EPSS history
Timeline
  • 19 NOV 01:30Z
    clk: qcom: videocc-sm8350: use HW_CTRL_TRIGGER for vcodec GDSCs
    cvelistv5