CVE-2022-49650

MEDIUM EPSS 15.4%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: qcom: bam_dma: fix runtime PM underflow Commit dbad41e7bb5f ("dmaengine: qcom: bam_dma: check if the runtime pm enabled") caused unbalanced pm_runtime_get/put() calls when the bam is controlled remotely. This commit reverts it and just enables pm_runtime in all cases, the clk_* functions already just nop when the clock is NULL. Also clean up a bit by removing unnecessary bamclk null checks.

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
15.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-191

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel*≥4.17.1  –  <5.15.54
linuxlinux_kernel*≥5.16  –  <5.18.11
linuxlinux_kernel4.17any
linuxlinux_kernel4.17any
linuxlinux_kernel4.17any
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any
linuxlinux_kernel5.19any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/0ac9c3dd0d6fe293cd5044cfad10bec27d171e4e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2f6ded79068cac8cff41d5d5632564165d98ee12
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b702a1077b51fcb39507cc3bd39206f539319a96
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0ac9c3dd0d6fe293cd5044cfad10bec27d171e4e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2f6ded79068cac8cff41d5d5632564165d98ee12
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b702a1077b51fcb39507cc3bd39206f539319a96
    Patch