clk: Get runtime PM before walking tree for clk_summary (Linux Linux)

CVE-2024-27003
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.17 % · percentile 7 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: clk: Get runtime PM before walking tree for clk_summary Similar to the previous commit, we should make sure that all devices are runtime resumed before printing the clk_summary through debugfs. Failure to do so would result in a deadlock if the thread is resuming a device to print clk state and that device is also runtime resuming in another thread, e.g the screen is turning on and the display driver is starting up. We remove the calls to clk_pm_runtime_{get,put}() in this path because they're superfluous now that we know the devices are runtime resumed. This also squashes a bug where the return value of clk_pm_runtime_get() wasn't checked, leading to an RPM count underflow on error paths.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 1bb294a7981c737e2311a78e4086635ac0220ace < 83ada89e4a86e2b28ea2b5113c76d6dc7560a4d0 ; affected 1bb294a7981c737e2311a78e4086635ac0220ace < 2c077fdfd09dffb31a890e5095c8ab205138a42e ; affected 1bb294a7981c737e2311a78e4086635ac0220ace < b457105309d388e4081c716cf7b81d517ff74db4 ; affected 1bb294a7981c737e2311a78e4086635ac0220ace < 9d1e795f754db1ac3344528b7af0b17b8146f321
Linux · Linuxaffected 5.17 ; unaffected 0 < 5.17 ; unaffected 6.1.88 ≤ 6.1.* ; unaffected 6.6.29 ≤ 6.6.* ; unaffected 6.8.8 ≤ 6.8.* ; unaffected 6.9 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD