High

CVE-2022-50671 — RDMA/rxe: Fix "kernel NULL pointer dereference" error

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix "kernel NULL pointer dereference" error When rxe_queue_init in the function rxe_qp_init_req fails, both qp->req.task.func and qp->req.task.arg are not initialized. Because of creation of qp fails, the function rxe_create_qp will call rxe_qp_do_cleanup to handle allocated resource. Before calling __rxe_do_task, both qp->req.task.func and qp->req.task.arg should be checked.

Published Dec 9, 2025 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 1% (30-day exploitation probability)+9
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.95%

ahead of 61% of scored CVEs · Oct 14, 2026

Affects

Linux

CVSS base

7.5

High · 2 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < 48cd7098e71735ccafa0b3cf27c53924f9cb5b2f≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < eca119693010032d6cc6e7e9b4fb2c363c7e12ce≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < 9c5dd6993c794703e74c6ba17ac78ca0211ef940≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < 0d773c58d702f0a7c16ee8d69617fd2c28350795≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < cdce36a88def550773142a34ef727a830cad96a8≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < f2f405af70e6f0419e718d23fa304798a5405c41≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < bb33fa65da77f5f02dbee6f25cebaeedfcd70028≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < 3b8752f086eb6865cc3662ad13249b03024501e5 and 2 more ≥ 8700e3e7c4857d28ebaa824509934556da0b3e76 and < a625ca30eff806395175ebad3ac1399014bdb280version 4.8	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
7.5	CVSS 3.1	High	3.9	3.6	416baaa9-dc9f-4396-8d5f-8c081fb06d67 via NIST National Vulnerability Database
7.5	CVSS 3.1	High	—	—	Linux via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (score shown at the top: 416baaa9-dc9f-4396-8d5f-8c081fb06d67)

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.95%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).

web/proxy/WAF logsnetwork IDS/IPS

Timeline

What happened to this CVE, newest first.

2026
Affected products added · linux/linux
Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 13, 2026
CVSS changed · 7.5
Oct 13, 2026 · NIST National Vulnerability Database
Source status changed · → Deferred
Oct 13, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 13, 2026 · NIST National Vulnerability Database
2025
CVE published
Dec 9, 2025 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

9 on the record

git.kernel.org/stable/c/3b8752f086eb6865cc3662ad13249b03024501e5
NIST National Vulnerability Database
git.kernel.org/stable/c/eca119693010032d6cc6e7e9b4fb2c363c7e12ce
NIST National Vulnerability Database
git.kernel.org/stable/c/bb33fa65da77f5f02dbee6f25cebaeedfcd70028
NIST National Vulnerability Database
git.kernel.org/stable/c/48cd7098e71735ccafa0b3cf27c53924f9cb5b2f
NIST National Vulnerability Database
git.kernel.org/stable/c/9c5dd6993c794703e74c6ba17ac78ca0211ef940
NIST National Vulnerability Database
git.kernel.org/stable/c/cdce36a88def550773142a34ef727a830cad96a8
NIST National Vulnerability Database
git.kernel.org/stable/c/f2f405af70e6f0419e718d23fa304798a5405c41
NIST National Vulnerability Database
git.kernel.org/stable/c/0d773c58d702f0a7c16ee8d69617fd2c28350795
NIST National Vulnerability Database
git.kernel.org/stable/c/a625ca30eff806395175ebad3ac1399014bdb280
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Critical CVE-2026-99999 ipv4: validate checksum_start before completing checksum 7h
Unknown CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 7h
Unknown CVE-2026-98428 ALSA: usb: 6fire: Avoid embedded URBs 1d
Unknown CVE-2026-98424 wifi: cfg80211: undo netns switch if renaming the wiphy fails 1d
Unknown CVE-2026-98425 wifi: mac80211: don't warn when an IBSS has no channel to scan 1d
Unknown CVE-2026-98426 wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path 1d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2022-50671 is "RDMA/rxe: Fix "kernel NULL pointer dereference" error", rated High. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.5 describes technical severity. EPSS 0.95% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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