CVE-2026-23112

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 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-25)

CWEs

CWE-787, CWE-125

Published

2026-02-13

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/0b9981751be14b59b4473383c731c833738aebdb
• https://git.kernel.org/stable/c/1385be357e8acd09b36e026567f3a9d5c61139de
• https://git.kernel.org/stable/c/19672ae68d52ff75347ebe2420dde1b07adca09f
• https://git.kernel.org/stable/c/42afe8ed8ad2de9c19457156244ef3e1eca94b5d
• https://git.kernel.org/stable/c/52a0a98549344ca20ad81a4176d68d28e3c05a5c

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