CVE-2026-23112 | BDVDB-2026-315345 Detail
LinuxLinux
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-125 Out-of-bounds Read
References#
- 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
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.