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Critical 9.8Published Dec 9, 2025

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

Updated under an hour ago ()

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Deferred
Record last updated
Oct 15, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b builds before 5c75d608fad58301b63e7d69200c13c3a1d411da; 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b builds before 74ad141e995a730760b1bcfa14854b7f1057d6bc; 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b builds before 0ed8bf9d0bb19f3f5eedd73f04aaf5bba9ac0737; from 303ae1cdfdf7280ff4cfbbe65563b5ff15bb025b before a3c278807a459e6f50afee6971cabe74cccfb490
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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