CVE-2024-38547 media: atomisp: ssh_css: Fix a null-pointer dereference in load_video_binaries

2024-06-1913:35:20

Linux

www.cve.org

linux kernel

vulnerability

media

atomisp

ssh_css

null-pointer dereference

0.0004 Low

EPSS

Percentile

10.4%

JSON

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.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/staging/media/atomisp/pci/sh_css.c"
    ],
    "versions": [
      {
        "version": "a49d25364dfb",
        "lessThan": "4b68b861b514",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a49d25364dfb",
        "lessThan": "82c2c85aead3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a49d25364dfb",
        "lessThan": "a1ab99dcc860",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a49d25364dfb",
        "lessThan": "cc20c87b04db",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a49d25364dfb",
        "lessThan": "69b27ff82f87",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a49d25364dfb",
        "lessThan": "6482c433863b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a49d25364dfb",
        "lessThan": "3b621e9e9e14",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/staging/media/atomisp/pci/sh_css.c"
    ],
    "versions": [
      {
        "version": "4.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.12",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.219",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.161",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.93",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.33",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.12",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.3",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]