Integer overflow in Linux

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (16.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 16.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-49650: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

  • Linux — versions dbad41e7bb5f4b9949ff5ea1d76c20711f326308, 4.17, 0
  • Linux Kernel — versions 4.17, 5.19

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-49650?
CVE-2022-49650 is a medium-severity vulnerability in Linux, classified under Integer Underflow. CVSS score: 5.5/10. Published 2025-02-26.
How severe is CVE-2022-49650?
Medium severity. CVSS v3 base score is 5.5 out of 10.