CVE-2022-50185

HIGH EPSS 14.0%
Published Jun 18, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers() The last case label can write two buffers 'mc_reg_address[j]' and 'mc_data[j]' with 'j' offset equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE since there are no checks for this value in both case labels after the last 'j++'. Instead of changing '>' to '>=' there, add the bounds check at the start of the second 'case' (the first one already has it). Also, remove redundant last checks for 'j' index bigger than array size. The expression is always false. Moreover, before or after the patch 'table->last' can be equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE and it seems it can be a valid value. Detected using the static analysis tool - Svace.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
14.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥3.11  –  <4.14.291
linuxlinux_kernel*≥4.15  –  <4.19.256
linuxlinux_kernel*≥4.20  –  <5.4.211
linuxlinux_kernel*≥5.5  –  <5.10.137
linuxlinux_kernel*≥5.11  –  <5.15.61
linuxlinux_kernel*≥5.16  –  <5.18.18
linuxlinux_kernel*≥5.19  –  <5.19.2

References 8

  • git.kernel.org https://git.kernel.org/stable/c/136f614931a2bb73616b292cf542da3a18daefd5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1f341053852be76f82610ce47a505d930512f05c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/782e413e38dffd37cc85b08b1ccb982adb4a93ce
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8508d6d23a247c29792ce2fc0df3f3404d6a6a80
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9faff03617afeced1c4e5daa89e79b3906374342
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/db1a9add3f90ff1c641974d5bb910c16b87af4ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/deb603c5928e546609c0d5798e231d0205748943
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea73869df6ef386fc0feeb28ff66742ca835b18f
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/136f614931a2bb73616b292cf542da3a18daefd5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1f341053852be76f82610ce47a505d930512f05c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/782e413e38dffd37cc85b08b1ccb982adb4a93ce
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8508d6d23a247c29792ce2fc0df3f3404d6a6a80
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9faff03617afeced1c4e5daa89e79b3906374342
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/db1a9add3f90ff1c641974d5bb910c16b87af4ef
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/deb603c5928e546609c0d5798e231d0205748943
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea73869df6ef386fc0feeb28ff66742ca835b18f
    Patch