firmware: qcom: scm: Mark get_wq_ctx() as atomic call (Linux Linux)

CVE-2024-46692
MEDIUM 5.5

At a glance

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

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: scm: Mark get_wq_ctx() as atomic call Currently get_wq_ctx() is wrongly configured as a standard call. When two SMC calls are in sleep and one SMC wakes up, it calls get_wq_ctx() to resume the corresponding sleeping thread. But if get_wq_ctx() is interrupted, goes to sleep and another SMC call is waiting to be allocated a waitq context, it leads to a deadlock. To avoid this get_wq_ctx() must be an atomic call and can't be a standard SMC call. Hence mark get_wq_ctx() as a fast call.

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 6bf32599223634294cdc6efb359ffaab1d68073c < cdf7efe4b02aa93813db0bf1ca596ad298ab6b06 ; affected 6bf32599223634294cdc6efb359ffaab1d68073c < e40115c33c0d79c940545b6b12112aace7acd9f5 ; affected 6bf32599223634294cdc6efb359ffaab1d68073c < 9960085a3a82c58d3323c1c20b991db6045063b0
Linux · Linuxaffected 6.3 ; unaffected 0 < 6.3 ; unaffected 6.6.49 ≤ 6.6.* ; unaffected 6.10.8 ≤ 6.10.* ; unaffected 6.11 ≤ *

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