Vulnerability details
CVE-2026-23112
Linux LinuxSiemens RUGGEDCOM RST2428P
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
CVSS 3.1
9.8Critical
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 5.0 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 872d26a391da92ed8f0c0f5cb5fef428067b7f30 ≤ v < 42afe8ed8ad2de9c19457156244ef3e1eca94b5d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 872d26a391da92ed8f0c0f5cb5fef428067b7f30 ≤ v < 1385be357e8acd09b36e026567f3a9d5c61139de | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 872d26a391da92ed8f0c0f5cb5fef428067b7f30 ≤ v < dca1a6ba0da9f472ef040525fab10fd9956db59f | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 872d26a391da92ed8f0c0f5cb5fef428067b7f30 ≤ v < 19672ae68d52ff75347ebe2420dde1b07adca09f | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 872d26a391da92ed8f0c0f5cb5fef428067b7f30 ≤ v < ab200d71553bdcf4de554a5985b05b2dd606bc57 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 872d26a391da92ed8f0c0f5cb5fef428067b7f30 ≤ v < 52a0a98549344ca20ad81a4176d68d28e3c05a5c | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 872d26a391da92ed8f0c0f5cb5fef428067b7f30 ≤ v < 0b9981751be14b59b4473383c731c833738aebdb | CVEProject cvelistV5 (CNA) |
| Siemens | RUGGEDCOM RST2428P | v < V4.0 | CVEProject cvelistV5 (CNA) |
References and advisories
8- https://git.kernel.org/stable/c/0b9981751be14b59b4473383c731c833738aebdb
- https://git.kernel.org/stable/c/42afe8ed8ad2de9c19457156244ef3e1eca94b5d
- https://git.kernel.org/stable/c/1385be357e8acd09b36e026567f3a9d5c61139de
- https://git.kernel.org/stable/c/dca1a6ba0da9f472ef040525fab10fd9956db59f
- https://git.kernel.org/stable/c/19672ae68d52ff75347ebe2420dde1b07adca09f
- https://git.kernel.org/stable/c/ab200d71553bdcf4de554a5985b05b2dd606bc57
- https://git.kernel.org/stable/c/52a0a98549344ca20ad81a4176d68d28e3c05a5c
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html
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Details
- Published
- 2026-02-13
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.46%
Probability of exploitation in 30 days
40.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-125Out-of-bounds Read