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 v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/043b4307a99f902697349128fde93b2ddde4686c	Patch
https://git.kernel.org/stable/c/1385be357e8acd09b36e026567f3a9d5c61139de	Patch
https://git.kernel.org/stable/c/19672ae68d52ff75347ebe2420dde1b07adca09f	Patch
https://git.kernel.org/stable/c/42afe8ed8ad2de9c19457156244ef3e1eca94b5d	Patch
https://git.kernel.org/stable/c/52a0a98549344ca20ad81a4176d68d28e3c05a5c	Patch
https://git.kernel.org/stable/c/ab200d71553bdcf4de554a5985b05b2dd606bc57	Patch
https://git.kernel.org/stable/c/dca1a6ba0da9f472ef040525fab10fd9956db59f	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	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::::::

History

No history.

Information

Published : 2026-02-13 14:16

Updated : 2026-03-19 19:20

NVD link : CVE-2026-23112

Mitre link : CVE-2026-23112

CVE.ORG link : CVE-2026-23112

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-787

Out-of-bounds Write

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Guard sg_idx, remaining\nentries, and sg->length/offset before building the bvec."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnvmet-tcp: a\u00f1adir comprobaciones de l\u00edmites en nvmet_tcp_build_pdu_iovec\n\nnvmet_tcp_build_pdu_iovec() podr\u00eda exceder cmd->req.sg cuando una longitud o desplazamiento de PDU excede sg_cnt y luego usar valores sg->length/offset err\u00f3neos, lo que lleva a _copy_to_iter() GPF/KASAN. 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