CVE-2022-50885Network attack vector

Host crash via unchecked failed socket creation

Published Dec 30, 2025 · Updated Dec 30, 2025

NULL-pointer dereference in the Linux kernel RDMA/rxe driver allows remote attackers to crash the host through Soft-RoCE connections. When socket creation fails in rxe_qp_init_req(), rxe_qp_do_cleanup() dereferences qp->sk before the cleanup path verifies that it is non-NULL. An unauthenticated peer can exhaust socket resources through repeated RDMA connection requests, and the next queue-pair creation failure triggers a kernel oops or panic.

CVSS severity7.5
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL-pointer dereference in the Linux kernel RDMA/rxe driver allows remote attackers to crash the host through Soft-RoCE connections. When socket creation fails in rxe_qp_init_req(), rxe_qp_do_cleanup() dereferences qp->sk before the cleanup path verifies that it is non-NULL. An unauthenticated peer can exhaust socket resources through repeated RDMA connection requests, and the next queue-pair creation failure triggers a kernel oops or panic.

The record

CVE
CVE-2022-50885
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.8
  2. Affected versionversion=8700e3e7c4857d28ebaa824509934556da0b3e76 <5b924632d84a60bc0c7fe6e9bbbce99d03908957
  3. Affected versionversion=8700e3e7c4857d28ebaa824509934556da0b3e76 <6bb5a62bfd624039b05157745c234068508393a9
  4. Affected versionversion=8700e3e7c4857d28ebaa824509934556da0b3e76 <7340ca9f782be6fbe3f64a134dc112772764f766
  5. Affected versionversion=8700e3e7c4857d28ebaa824509934556da0b3e76 <821f9a18210f6b9fd6792471714c799607b25db4
  6. Affected versionversion=8700e3e7c4857d28ebaa824509934556da0b3e76 <bd7106a6004f1077a365ca7f5a99c7a708e20714
  7. Affected versionversion=8700e3e7c4857d28ebaa824509934556da0b3e76 <ee24de095569935eba600f7735e8e8ddea5b418e
  8. Affected versionversion=8700e3e7c4857d28ebaa824509934556da0b3e76 <f64f08b9e6fb305a25dd75329e06ae342b9ce336
  9. Affected versionversion=8700e3e7c4857d28ebaa824509934556da0b3e76 <f67376d801499f4fa0838c18c1efcad8840e550d

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.8; version=8700e3e7c4857d28ebaa824509934556da0b3e76 <5b924632d84a60bc0c7fe6e9bbbce99d03908957; version=8700e3e7c4857d28ebaa824509934556da0b3e76 <6bb5a62bfd624039b05157745c234068508393a9; version=8700e3e7c4857d28ebaa824509934556da0b3e76 <7340ca9f782be6fbe3f64a134dc112772764f766; version=8700e3e7c4857d28ebaa824509934556da0b3e76 <821f9a18210f6b9fd6792471714c799607b25db4; version=8700e3e7c4857d28ebaa824509934556da0b3e76 <bd7106a6004f1077a365ca7f5a99c7a708e20714; version=8700e3e7c4857d28ebaa824509934556da0b3e76 <ee24de095569935eba600f7735e8e8ddea5b418e; version=8700e3e7c4857d28ebaa824509934556da0b3e76 <f64f08b9e6fb305a25dd75329e06ae342b9ce336; version=8700e3e7c4857d28ebaa824509934556da0b3e76 <f67376d801499f4fa0838c18c1efcad8840e550d

Published CVSS scores

7.5Linux kernel CVE teamCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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