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Vulnerability · Published Feb 13, 2026 · Assigned by Linux

CVE-2026-23112nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec

Critical 9.8

In plain English

A critical-severity out-of-bounds read in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 59.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.164-1DEBIAN-CVE-2026-23112
Debian:12linux6.1.164-1DSA-6163-1
Debian:13linux6.12.73-1DSA-6141-1
Debian:13linux6.12.73-1DEBIAN-CVE-2026-23112
Debian:14linux6.18.10-1DEBIAN-CVE-2026-23112
Ubuntu:22.04:LTSlinux5.15.0-177.187UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux5.15.0-177.187USN-8255-1
Ubuntu:24.04:LTSlinux6.8.0-111.111USN-8254-1
Ubuntu:24.04:LTSlinux6.8.0-111.111UBUNTU-CVE-2026-23112
Ubuntu:25.10linux6.17.0-23.23UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-aws5.15.0-1106.113UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-aws5.15.0-1106.113USN-8255-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1053.56USN-8254-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1053.56UBUNTU-CVE-2026-23112
Ubuntu:25.10linux-aws6.17.0-1013.13UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1013.13~24.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1053.56~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1053.56~22.04.1USN-8254-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1111.120UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure5.15.0-1111.120USN-8255-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1054.60UBUNTU-CVE-2026-23112
Ubuntu:25.10linux-azure6.17.0-1013.13UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1013.13~24.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1114.123UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2026-23112
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-gcp5.15.0-1106.115USN-8255-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1106.115UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-gcp6.8.0-1055.58USN-8254-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1055.58UBUNTU-CVE-2026-23112
Ubuntu:25.10linux-gcp6.17.0-1013.13UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1013.13~24.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1060.63~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-gke5.15.0-1102.108USN-8255-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1102.108UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-gke6.8.0-1051.57USN-8254-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1051.57UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1089.97UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1089.97USN-8255-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1038.41UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1038.41USN-8254-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-23.23~24.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-111.111~22.04.1USN-8254-1
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-111.111~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-ibm5.15.0-1100.103USN-8255-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1100.103UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-ibm6.8.0-1052.52USN-8254-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1052.52UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1052.52~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1052.52~22.04.1USN-8254-1
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1101.107USN-8255-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1101.107UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-kvm5.15.0-1098.103USN-8255-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1098.103UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-177.187UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-177.187USN-8255-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-111.111.1UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-111.111.1USN-8254-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-111.111.1~22.04.1USN-8254-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-111.111.1~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1101.102UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1101.102USN-8255-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1052.55UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1026.26USN-8508-1
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1026.26UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1052.55~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1052.55.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1058.58UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1058.58USN-8255-1
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1023.23UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1047.47UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1047.47USN-8255-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1020.20UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-oracle5.15.0-1103.109UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-oracle5.15.0-1103.109USN-8255-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1050.51USN-8254-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1050.51UBUNTU-CVE-2026-23112
Ubuntu:25.10linux-oracle6.17.0-1012.12UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1014.14~24.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1050.51~22.04.1USN-8254-1
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1050.51~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-raspi5.15.0-1100.103UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-raspi6.8.0-1053.57USN-8254-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1053.57UBUNTU-CVE-2026-23112
Ubuntu:25.10linux-raspi6.17.0-1014.14UBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-23112
Ubuntu:25.10linux-realtime6.17.0-1011.12UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-23112
Ubuntu:25.10linux-riscv6.17.0-23.23.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-riscv-6.176.17.0-23.23.1~24.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-111.111~22.04.1UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-23112
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1029.30UBUNTU-CVE-2026-23112
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1070.74UBUNTU-CVE-2026-23112

Affected products (as reported)

VendorProductVersions
Linux Linux 872d26a391da92ed8f0c0f5cb5fef428067b7f30 – before 0b9981751be14b59b4473383c731c833738aebdb872d26a391da92ed8f0c0f5cb5fef428067b7f30 – before 42afe8ed8ad2de9c19457156244ef3e1eca94b5d872d26a391da92ed8f0c0f5cb5fef428067b7f30 – before 1385be357e8acd09b36e026567f3a9d5c61139de872d26a391da92ed8f0c0f5cb5fef428067b7f30 – before dca1a6ba0da9f472ef040525fab10fd9956db59f872d26a391da92ed8f0c0f5cb5fef428067b7f30 – before 19672ae68d52ff75347ebe2420dde1b07adca09f872d26a391da92ed8f0c0f5cb5fef428067b7f30 – before ab200d71553bdcf4de554a5985b05b2dd606bc57872d26a391da92ed8f0c0f5cb5fef428067b7f30 – before 52a0a98549344ca20ad81a4176d68d28e3c05a5c
Linux Linux 5.0

Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References