High

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

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.

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	≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < 5d2ba255e93211e541373469dffbda7c99dfa0e5≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < 2425007c0967a7c04b0dee7cce05ecf0ca869ad1≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < e3cb25d3ad08f5dbd53ce2b31720cad529944322≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < 360aa7219285fac63dab99706a16f2daf3222abe≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < 30bfa5aa7228eb1e67663d67e553627e572cc717≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < c380c28ab9b15fc53565909c814f6dd3e7f77c4b≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < afe7053c390fe8ff27d0c2ceaece5625283044ba and 2 more ≥ ac3615e7f3cffe2a1a6b25172dfd09e138593d82 and < a91b750fd6629354460282bbf5146c01b05c4859version 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/5d2ba255e93211e541373469dffbda7c99dfa0e5
NIST National Vulnerability Database
git.kernel.org/stable/c/e3cb25d3ad08f5dbd53ce2b31720cad529944322
NIST National Vulnerability Database
git.kernel.org/stable/c/c380c28ab9b15fc53565909c814f6dd3e7f77c4b
NIST National Vulnerability Database
git.kernel.org/stable/c/afe7053c390fe8ff27d0c2ceaece5625283044ba
NIST National Vulnerability Database
git.kernel.org/stable/c/a91b750fd6629354460282bbf5146c01b05c4859
NIST National Vulnerability Database
git.kernel.org/stable/c/da349221c4d2d4ac5f606c1c3b36d4ef0b3e6a0c
NIST National Vulnerability Database
git.kernel.org/stable/c/2425007c0967a7c04b0dee7cce05ecf0ca869ad1
NIST National Vulnerability Database
git.kernel.org/stable/c/360aa7219285fac63dab99706a16f2daf3222abe
NIST National Vulnerability Database
git.kernel.org/stable/c/30bfa5aa7228eb1e67663d67e553627e572cc717
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-2026-98424 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
Unknown CVE-2026-98427 net/sched: codel: bound the dropping loop per dequeue call 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-2022-50676 is "net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()", 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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