9.8

CVE-2022-50666: RDMA/siw: Fix QP destroy to wait for all references dropped.

Deferred
AliasesUBUNTU-CVE-2022-50666DEBIAN-CVE-2022-50666
Published 09-12-2025Last modified 15-10-2026

Vulnerability summary

CVE-2022-50666 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 54.4% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.73%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
SUSE-SU-2026:0263-1SUSE-SU-2026:0317-1SUSE-SU-2026:0411-1SUSE-SU-2026:0617-1

Timeline

  1. 09-12-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.73% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu116 products
  • linuxAll versions (No fix recorded) | < 5.15.0-60.66
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1030.34
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.0.3-1
Linux1 product
  • linux≥ 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b, < 5c75d608fad58301b63e7d69200c13c3a1d411da | ≥ 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b, < 74ad141e995a730760b1bcfa14854b7f1057d6bc | ≥ 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b, < 0ed8bf9d0bb19f3f5eedd73f04aaf5bba9ac0737 | ≥ 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b, < a3c278807a459e6f50afee6971cabe74cccfb490 | 5.3

3 vendors · 118 products

References

8 links