CVE-2026-23112

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

13/02/2026

Last modified:

03/04/2026

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.0 (including)	5.10.250 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.200 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.163 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.124 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.70 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.18.10 (excluding)
cpe:2.3:o:linux:linux_kernel:6.19:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.19:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.19:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.19:rc4::::::
cpe:2.3:o:linux:linux_kernel:6.19:rc5::::::
cpe:2.3:o:linux:linux_kernel:6.19:rc6::::::
cpe:2.3:o:linux:linux_kernel:6.19:rc7::::::
cpe:2.3:o:linux:linux_kernel:6.19:rc8::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-23112

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools