Critical severity · published Feb 13, 2026
CVE-2026-23112
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
9.8
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.0 before 5.10.250; 5.11 before 5.15.200; 5.16 before 6.1.163; 6.2 before 6.6.124; 6.7 before 6.12.70; 6.13 before 6.18.10; +8 more · source: NVD
LI
Linux · Linux
872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 0b9981751be14b59b4473383c731c833738aebdb; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 42afe8ed8ad2de9c19457156244ef3e1eca94b5d; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 1385be357e8acd09b36e026567f3a9d5c61139de; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before dca1a6ba0da9f472ef040525fab10fd9956db59f; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 19672ae68d52ff75347ebe2420dde1b07adca09f; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before ab200d71553bdcf4de554a5985b05b2dd606bc57; +2 more · source: vendor
RR
RUGGEDCOM RST2428P · Siemens
before V4.0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23112
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23112
git.kernel.org
https://git.kernel.org/stable/c/0b9981751be14b59b4473383c731c833738aebdb
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
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