CVE-2026-23112nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 872d26a391da92ed8f0c0f5cb5fef428067b7f30 builds before 0b9981751be14b59b4473383c731c833738aebdb; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 builds before 42afe8ed8ad2de9c19457156244ef3e1eca94b5d; from 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 1385be357e8acd09b36e026567f3a9d5c61139de; from 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before dca1a6ba0da9f472ef040525fab10fd9956db59f; from 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 19672ae68d52ff75347ebe2420dde1b07adca09f; from 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before ab200d71553bdcf4de554a5985b05b2dd606bc57; 872d26a391da92ed8f0c0f5cb5fef428067b7f30 builds before 52a0a98549344ca20ad81a4176d68d28e3c05a5c | CNA record |
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name) | before V4.0 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.0 before 5.10.250; from 5.11 before 5.15.200; from 5.16 before 6.1.163; from 6.2 before 6.6.124; from 6.7 before 6.12.70; from 6.13 before 6.18.10; 6.19; 6.19; and 6 more ranges | NVD |
References
- https://git.kernel.org/stable/c/0b9981751be14b59b4473383c731c833738aebdb
- https://git.kernel.org/stable/c/42afe8ed8ad2de9c19457156244ef3e1eca94b5dpatch
- https://git.kernel.org/stable/c/1385be357e8acd09b36e026567f3a9d5c61139depatch
- https://git.kernel.org/stable/c/dca1a6ba0da9f472ef040525fab10fd9956db59fpatch
- https://git.kernel.org/stable/c/19672ae68d52ff75347ebe2420dde1b07adca09fpatch
- https://git.kernel.org/stable/c/ab200d71553bdcf4de554a5985b05b2dd606bc57patch
- https://git.kernel.org/stable/c/52a0a98549344ca20ad81a4176d68d28e3c05a5cpatch
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.