CVE-2026-23112

moderate-risk
Published 2026-02-13

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.

Do I need to act?

-
0.08% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 043b4307a99f902697349128fde93b2ddde4686c, 42afe8ed8ad2de9c19457156244ef3e1eca94b5d, 1385be357e8acd09b36e026567f3a9d5c61139de, dca1a6ba0da9f472ef040525fab10fd9956db59f, 19672ae68d52ff75347ebe2420dde1b07adca09f, ab200d71553bdcf4de554a5985b05b2dd606bc57, 52a0a98549344ca20ad81a4176d68d28e3c05a5c
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (9)

Affected Vendors

Linux

References (7)

Patch 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
47
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 0/34 · Minimal
Exposure 15/34 · Moderate