CVE-2022-50541

MEDIUM EPSS 3.9%
Published Oct 7, 20258mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 7, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma: Reset UDMA_CHAN_RT byte counters to prevent overflow UDMA_CHAN_RT_*BCNT_REG stores the real-time channel bytecount statistics. These registers are 32-bit hardware counters and the driver uses these counters to monitor the operational progress status for a channel, when transferring more than 4GB of data it was observed that these counters overflow and completion calculation of a operation gets affected and the transfer hangs indefinitely. This commit adds changes to decrease the byte count for every complete transaction so that these registers never overflow and the proper byte count statistics is maintained for ongoing transaction by the RT counters. Earlier uc->bcnt used to maintain a count of the completed bytes at driver side, since the RT counters maintain the statistics of current transaction now, the maintenance of uc->bcnt is not necessary.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥5.6  –  <5.15.75
linuxlinux_kernel*≥5.16  –  <5.19.17
linuxlinux_kernel*≥6.0  –  <6.0.3

References 4

  • git.kernel.org https://git.kernel.org/stable/c/7c94dcfa8fcff2dba53915f1dabfee49a3df8b88
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a065657643a62a24b4435ddcaea45f1e9378749e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d68da10b0cceb4177b653833e794b2923a4ffbd7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e0b16bfbd3a4a8d09614046335f4482313e7c0c4
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/7c94dcfa8fcff2dba53915f1dabfee49a3df8b88
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a065657643a62a24b4435ddcaea45f1e9378749e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d68da10b0cceb4177b653833e794b2923a4ffbd7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e0b16bfbd3a4a8d09614046335f4482313e7c0c4
    Patch