RDMA/bnxt_re: Avoid CPU lockups due fifo occupancy check loop (Linux Linux)

CVE-2024-50157
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.21 % · percentile 12 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Avoid CPU lockups due fifo occupancy check loop Driver waits indefinitely for the fifo occupancy to go below a threshold as soon as the pacing interrupt is received. This can cause soft lockup on one of the processors, if the rate of DB is very high. Add a loop count for FPGA and exit the __wait_for_fifo_occupancy_below_th if the loop is taking more time. Pacing will be continuing until the occupancy is below the threshold. This is ensured by the checks in bnxt_re_pacing_timer_exp and further scheduling the work for pacing based on the fifo occupancy.

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 2ad4e6303a6d7518632739eaf67821a3553db1bd < 7998e7efd1d557af118ac96f48ebc569b929b555 ; affected 2ad4e6303a6d7518632739eaf67821a3553db1bd < 2fb6b2e82413e401b72dfeacd7a60416fcfc5b41 ; affected 2ad4e6303a6d7518632739eaf67821a3553db1bd < 8be3e5b0c96beeefe9d5486b96575d104d3e7d17
Linux · Linuxaffected 6.6 ; unaffected 0 < 6.6 ; unaffected 6.6.75 ≤ 6.6.* ; unaffected 6.11.6 ≤ 6.11.* ; unaffected 6.12 ≤ *

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