Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected dbad41e7bb5f4b9949ff5ea1d76c20711f326308 before 2f6ded79068cac8cff41d5d5632564165d98ee12; affected dbad41e7bb5f4b9949ff5ea1d76c20711f326308 before b702a1077b51fcb39507cc3bd39206f539319a96; affected dbad41e7bb5f4b9949ff5ea1d76c20711f326308 before 0ac9c3dd0d6fe293cd5044cfad10bec27d171e4e |
| Linux / Linux | affected 4.17; unaffected 0 before 4.17; unaffected 5.15.54 through 5.15.*; unaffected 5.18.11 through 5.18.*; unaffected 5.19 through * |
CWE
No CWE identifiers supplied.