CVE-2022-49650

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:4.17:-::::::
	cpe:2.3:o:linux:linux_kernel:4.17:rc6::::::
	cpe:2.3:o:linux:linux_kernel:4.17:rc7::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc5::::::

History

No history.

Information

Published : 2025-02-26 07:01

Updated : 2025-10-23 12:10

NVD link : CVE-2022-49650

Mitre link : CVE-2022-49650

CVE.ORG link : CVE-2022-49650

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

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