Description

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

media: atomisp: ssh_css: Fix a null-pointer dereference in load_video_binaries

The allocation failure of mycs->yuv_scaler_binary in load_video_binaries()
is followed with a dereference of mycs->yuv_scaler_binary after the
following call chain:

sh_css_pipe_load_binaries()
|-> load_video_binaries(mycs->yuv_scaler_binary == NULL)
|
|-> sh_css_pipe_unload_binaries()
|-> unload_video_binaries()

In unload_video_binaries(), it calls to ia_css_binary_unload with argument
&pipe->pipe_settings.video.yuv_scaler_binary[i], which refers to the
same memory slot as mycs->yuv_scaler_binary. Thus, a null-pointer
dereference is triggered.

Classification

CVE ID: CVE-2024-38547

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.06% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/4b68b861b514a5c09220d622ac3784c0ebac6c80
https://git.kernel.org/stable/c/82c2c85aead3ea3cbceef4be077cf459c5df2272
https://git.kernel.org/stable/c/a1ab99dcc8604afe7e3bccb01b10da03bdd7ea35
https://git.kernel.org/stable/c/cc20c87b04db86c8e3e810bcdca686b406206069
https://git.kernel.org/stable/c/69b27ff82f87379afeaaea4b2f339032fdd8486e
https://git.kernel.org/stable/c/6482c433863b257b0b9b687c28ce80b89d5f89f0
https://git.kernel.org/stable/c/3b621e9e9e148c0928ab109ac3d4b81487469acb

Timeline