CVE-2026-23112

Aliases:UBUNTU-CVE-2026-23112DEBIAN-CVE-2026-23112
Advisory lineage Upstream: 0 Downstream: 38
Modified
Published: 13 Feb 2026, 13:29
Last modified:05 Aug 2026, 12:20

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
0.41% LOW
0% probability +0.33%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 Feb 2026, 13:29
Published
Vulnerability first disclosed
05 Aug 2026, 12:20
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length or offset exceeds sg_cnt and then use bogus sg->length/offset values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining entries, and sg->length/offset before building the bvec.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.41%• Percentile: 35%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•linux

    < 5.10.257-1 | < 6.1.164-1 | < 6.12.73-1 | < 6.18.10-1

  • debian•linux-6.1

    < 6.1.164-1~deb11u1

  • ubuntu•linux

    < 5.4.0-229.249 | < 5.15.0-177.187 | < 6.8.0-111.111 | < 6.17.0-23.23

  • ubuntu•linux-allwinner-5.19

    all

  • ubuntu•linux-aws

    < 5.4.0-1158.168 | < 5.15.0-1106.113 | < 6.8.0-1053.56 | < 6.17.0-1013.13

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1106.113~20.04.1

  • ubuntu•linux-aws-5.19

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1158.168~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-6.14

    all

  • ubuntu•linux-aws-6.17

    < 6.17.0-1013.13~24.04.1

  • ubuntu•linux-aws-6.2

    all

  • ubuntu•linux-aws-6.5

    all

  • ubuntu•linux-aws-6.8

    < 6.8.0-1053.56~22.04.1

  • ubuntu•linux-aws-fips

    < 5.4.0-1158.168+fips1 | all | < 5.15.0-1106.113+fips1 | < 6.8.0-1053.56+fips1

  • ubuntu•linux-azure

    all | < 5.4.0-1162.168 | < 5.15.0-1111.120 | < 6.8.0-1054.60 | < 6.17.0-1013.13

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1111.120~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1162.168~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-6.11

    all

  • ubuntu•linux-azure-6.14

    all

  • ubuntu•linux-azure-6.17

    < 6.17.0-1013.13~24.04.1

  • ubuntu•linux-azure-6.2

    all

  • ubuntu•linux-azure-6.5

    all

  • ubuntu•linux-azure-6.8

    < 6.8.0-1059.65~22.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | all | all | all

  • ubuntu•linux-azure-fde-5.19

    all

  • ubuntu•linux-azure-fde-6.14

    all

  • ubuntu•linux-azure-fde-6.2

    all

  • ubuntu•linux-azure-fde-6.8

    all

  • ubuntu•linux-azure-fips

    < 5.4.0-1162.168+fips1 | all | < 5.15.0-1111.120+fips1 | < 6.8.0-1054.60+fips1

  • ubuntu•linux-azure-nvidia

    all

  • ubuntu•linux-azure-nvidia-6.14

    all

  • ubuntu•linux-bluefield

    all | < 5.4.0-1117.124 | < 5.15.0-1090.92 | < 6.8.0-1022.26

  • ubuntu•linux-fips

    < 5.4.0-1132.142 | all | < 5.15.0-177.187+fips1 | < 6.8.0-111.111+fips1

  • ubuntu•linux-gcp

    all | < 5.4.0-1161.170 | < 5.15.0-1106.115 | < 6.8.0-1055.58 | < 6.17.0-1013.13

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1106.115~20.04.1

  • ubuntu•linux-gcp-5.19

    all

  • ubuntu•linux-gcp-5.3

    all

Showing first 50 affected entries in server-rendered view.

References (32)