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CVE-2022-50676
net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()
Description

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.

INFO

Published Date :

Dec. 9, 2025, 4:17 p.m.

Last Modified :

Dec. 9, 2025, 6:37 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2022-50676 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
The Linux kernel has resolved a race condition in the rds_tcp_reset_callbacks() function.
  • Apply the patch for commit ac3615e7f3cffe2a.
  • Update the Linux kernel to the latest version.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-50676.

URL Resource
https://git.kernel.org/stable/c/2425007c0967a7c04b0dee7cce05ecf0ca869ad1
https://git.kernel.org/stable/c/30bfa5aa7228eb1e67663d67e553627e572cc717
https://git.kernel.org/stable/c/360aa7219285fac63dab99706a16f2daf3222abe
https://git.kernel.org/stable/c/5d2ba255e93211e541373469dffbda7c99dfa0e5
https://git.kernel.org/stable/c/a91b750fd6629354460282bbf5146c01b05c4859
https://git.kernel.org/stable/c/afe7053c390fe8ff27d0c2ceaece5625283044ba
https://git.kernel.org/stable/c/c380c28ab9b15fc53565909c814f6dd3e7f77c4b
https://git.kernel.org/stable/c/da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c
https://git.kernel.org/stable/c/e3cb25d3ad08f5dbd53ce2b31720cad529944322
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-50676 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-50676 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-50676 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-50676 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 09, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added Reference https://git.kernel.org/stable/c/2425007c0967a7c04b0dee7cce05ecf0ca869ad1
    Added Reference https://git.kernel.org/stable/c/30bfa5aa7228eb1e67663d67e553627e572cc717
    Added Reference https://git.kernel.org/stable/c/360aa7219285fac63dab99706a16f2daf3222abe
    Added Reference https://git.kernel.org/stable/c/5d2ba255e93211e541373469dffbda7c99dfa0e5
    Added Reference https://git.kernel.org/stable/c/a91b750fd6629354460282bbf5146c01b05c4859
    Added Reference https://git.kernel.org/stable/c/afe7053c390fe8ff27d0c2ceaece5625283044ba
    Added Reference https://git.kernel.org/stable/c/c380c28ab9b15fc53565909c814f6dd3e7f77c4b
    Added Reference https://git.kernel.org/stable/c/da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c
    Added Reference https://git.kernel.org/stable/c/e3cb25d3ad08f5dbd53ce2b31720cad529944322
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.