8.2

CVE-2026-23179: nvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready()

Deferred
AliasesUBUNTU-CVE-2026-23179DEBIAN-CVE-2026-23179
Published 14-02-2026Last modified 11-05-2026

Vulnerability summary

CVE-2026-23179 is a high (CVSS 8.2) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 9.2% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 8.2 (OSV · Ubuntu); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
8.2/10
010
High · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.19%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 22 · Related 19
DSA-6141-1MGASA-2026-0097MGASA-2026-0098OPENSUSE-SU-2026:20416-1SUSE-SU-2026:0962-1SUSE-SU-2026:1081-1

Timeline

  1. 14-02-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready() When the socket is closed while in TCP_LISTEN a callback is run to flush all outstanding packets, which in turns calls nvmet_tcp_listen_data_ready() with the sk_callback_lock held. So we need to check if we are in TCP_LISTEN before attempting to get the sk_callback_lock() to avoid a deadlock.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.18% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 6.8.0-117.117
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1055.58
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.12.73-1 | < 6.18.10-1
Linux1 product
  • linux≥ 675b453e024154dd547921c6e6d5b58747ba7e0e, < 6e0c7503a5803d568d56a9f9bca662cd94a14908 | ≥ 675b453e024154dd547921c6e6d5b58747ba7e0e, < 1c90f930e7b410dd2d75a2a19a85e19c64e98ad5 | ≥ 675b453e024154dd547921c6e6d5b58747ba7e0e, < 2fa8961d3a6a1c2395d8d560ffed2c782681bade | 6.7

3 vendors · 159 products

References

17 links
Show all 17 references