Linux Kernel up to 6.0.2 rds_tcp_reset_callbacks denial of service

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.0.2. The impacted element is the function rds_tcp_reset_callbacks. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2022-50676. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.0.2. Affected by this issue is the function rds_tcp_reset_callbacks. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks() syzbot is reporting lockdep warning at rds_tcp_reset_callbacks() [1], for commit ac3615e7f3cffe2a ("RDS: TCP: Reduce code duplication in rds_tcp_reset_callbacks()") added cancel_delayed_work_sync() into a section protected by lock_sock() without realizing that rds_send_xmit() might call lock_sock(). We don't need to protect cancel_delayed_work_sync() using lock_sock(), for even if rds_{send,recv}_worker() re-queued this work while __flush_work() from cancel_delayed_work_sync() was waiting for this work to complete, retried rds_{send,recv}_worker() is no-op due to the absence of RDS_CONN_UP bit.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2022-50676 since 12/09/2025. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 278323 (Linux Distros Unpatched Vulnerability : CVE-2022-50676), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.331, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.19.17 or 6.0.3 eliminates this vulnerability. Applying the patch 5d2ba255e93211e541373469dffbda7c99dfa0e5/2425007c0967a7c04b0dee7cce05ecf0ca869ad1/e3cb25d3ad08f5dbd53ce2b31720cad529944322/360aa7219285fac63dab99706a16f2daf3222abe/da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c/30bfa5aa7228eb1e67663d67e553627e572cc717/c380c28ab9b15fc53565909c814f6dd3e7f77c4b/afe7053c390fe8ff27d0c2ceaece5625283044ba/a91b750fd6629354460282bbf5146c01b05c4859 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (278323) and CERT Bund (WID-SEC-2025-2765). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 278323
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-50676

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.9.331/4.14.296/4.19.262/5.4.220/5.10.150/5.15.75/5.19.17/6.0.3
Patch: 5d2ba255e93211e541373469dffbda7c99dfa0e5/2425007c0967a7c04b0dee7cce05ecf0ca869ad1/e3cb25d3ad08f5dbd53ce2b31720cad529944322/360aa7219285fac63dab99706a16f2daf3222abe/da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c/30bfa5aa7228eb1e67663d67e553627e572cc717/c380c28ab9b15fc53565909c814f6dd3e7f77c4b/afe7053c390fe8ff27d0c2ceaece5625283044ba/a91b750fd6629354460282bbf5146c01b05c4859

Timelineinfo

12/09/2025 Advisory disclosed
12/09/2025 +0 days CVE reserved
12/09/2025 +0 days VulDB entry created
03/29/2026 +110 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50676 (🔒)
GCVE (CVE): GCVE-0-2022-50676
GCVE (VulDB): GCVE-100-334946
CERT Bund: WID-SEC-2025-2765 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/09/2025 07:54
Updated: 03/29/2026 08:36
Changes: 12/09/2025 07:54 (58), 12/16/2025 07:09 (2), 03/29/2026 08:36 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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