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CVE-2022-49650
dmaengine: qcom: bam_dma: fix runtime PM underflow
Medium5.5EPSS 0.27%
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected dbad41e7bb5f4b9949ff5ea1d76c20711f326308 – < 2f6ded79068cac8cff41d5d5632564165d98ee12
- affected dbad41e7bb5f4b9949ff5ea1d76c20711f326308 – < b702a1077b51fcb39507cc3bd39206f539319a96
- affected dbad41e7bb5f4b9949ff5ea1d76c20711f326308 – < 0ac9c3dd0d6fe293cd5044cfad10bec27d171e4e
- affected 4.17
- unaffected < 4.17
- unaffected 5.15.54 – ≤ 5.15.*
- unaffected 5.18.11 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References (3)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-49650)Record last updated .