RDMA/siw: Fix QP destroy to wait for all references dropped. (Linux Linux)

CVE-2022-50666
CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 0.73 % · percentile 54 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix QP destroy to wait for all references dropped. Delay QP destroy completion until all siw references to QP are dropped. The calling RDMA core will free QP structure after successful return from siw_qp_destroy() call, so siw must not hold any remaining reference to the QP upon return. A use-after-free was encountered in xfstest generic/460, while testing NFSoRDMA. Here, after a TCP connection drop by peer, the triggered siw_cm_work_handler got delayed until after QP destroy call, referencing a QP which has already freed.

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b < 5c75d608fad58301b63e7d69200c13c3a1d411da ; affected 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b < 74ad141e995a730760b1bcfa14854b7f1057d6bc ; affected 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b < 0ed8bf9d0bb19f3f5eedd73f04aaf5bba9ac0737 ; affected 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b < a3c278807a459e6f50afee6971cabe74cccfb490
Linux · Linuxaffected 5.3 ; unaffected 0 < 5.3 ; unaffected 5.15.75 ≤ 5.15.* ; unaffected 5.19.17 ≤ 5.19.* ; unaffected 6.0.3 ≤ 6.0.* ; unaffected 6.1 ≤ *

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