soc: fsl: qbman: Use raw spinlock for cgr_lock (Linux Linux)

CVE-2024-35819
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.23 % · percentile 14 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: soc: fsl: qbman: Use raw spinlock for cgr_lock smp_call_function always runs its callback in hard IRQ context, even on PREEMPT_RT, where spinlocks can sleep. So we need to use a raw spinlock for cgr_lock to ensure we aren't waiting on a sleeping task. Although this bug has existed for a while, it was not apparent until commit ef2a8d5478b9 ("net: dpaa: Adjust queue depth on rate change") which invokes smp_call_function_single via qman_update_cgr_safe every time a link goes up or down.

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 96f413f47677366e0ae03797409bfcc4151dbf9e < 2b3fede8225133671ce837c0d284804aa3bc7a02 ; affected 96f413f47677366e0ae03797409bfcc4151dbf9e < ff50716b7d5b7985979a5b21163cd79fb3d21d59 ; affected 96f413f47677366e0ae03797409bfcc4151dbf9e < 32edca2f03a6cc42c650ddc3ad83d086e3f365d1 ; affected 96f413f47677366e0ae03797409bfcc4151dbf9e < 9a3ca8292ce9fdcce122706c28c3f07bc857fe5e ; affected 96f413f47677366e0ae03797409bfcc4151dbf9e < d6b5aac451c9cc12e43ab7308e0e2ddc52c62c14 ; affected 96f413f47677366e0ae03797409bfcc4151dbf9e < 54d26adf64c04f186098b39dba86b86037084baa
Linux · Linuxaffected 4.16 ; unaffected 0 < 4.16 ; unaffected 4.19.312 ≤ 4.19.* ; unaffected 5.4.274 ≤ 5.4.* ; unaffected 5.10.215 ≤ 5.10.* ; unaffected 5.15.154 ≤ 5.15.*

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