CVE-2026-23112 | In the Linux kernel, the following vulnerability has been re… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-23112
State: PUBLISHED
Assigner: Linux
Reserved: 2026-01-13 15:37 UTC
Published: 2026-02-13 13:29 UTC
Last updated: 2026-06-02 13:00 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 0b9981751be14b59b4473383c731c833738aebdb, 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 42afe8ed8ad2de9c19457156244ef3e1eca94b5d, 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 1385be357e8acd09b36e026567f3a9d5c61139de, 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < dca1a6ba0da9f472ef040525fab10fd9956db59f …
Linux	Linux	—	5.0, 0 < 5.0, 5.10.253 ≤ 5.10., 5.15.200 ≤ 5.15. …

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (7)