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

Published Feb 13, 2026
·
Updated

In the Linux kernel, the following vulnerability has been resolved:

nvmet-tcp: add bounds checks in nvmettcpbuildpduiovec

nvmettcpbuildpduiovec() could walk past cmd->req.sg when a PDU length or offset exceeds sgcnt and then use bogus sg->length/offset values, leading to copytoiter() GPF/KASAN. Guard sgidx, remaining entries, and sg->length/offset before building the bvec.

Affected Software

236 affected componentsFixes available
linux/kernel
Linux Linux kernel>=5.0<5.10.250
Linux Linux kernel>=5.11<5.15.200
Linux Linux kernel>=5.16<6.1.163
Linux Linux kernel>=6.2<6.6.124
Linux Linux kernel>=6.7<6.12.70
Linux Linux kernel>=6.13<6.18.10
Linux Linux kernel=6.19-rc1
Linux Linux kernel=6.19-rc2
Linux Linux kernel=6.19-rc3
Linux Linux kernel=6.19-rc4
Linux Linux kernel=6.19-rc5
Linux Linux kernel=6.19-rc6
Linux Linux kernel=6.19-rc7
Linux Linux kernel=6.19-rc8
linux/kernel>=5.0.0<5.10.253
5.10.253
linux/kernel>=5.11.0<5.15.200
5.15.200
linux/kernel>=5.16.0<6.1.163
6.1.163
linux/kernel>=6.2.0<6.6.124
6.6.124
linux/kernel>=6.7.0<6.12.70
6.12.70
linux/kernel>=6.13.0<6.18.10
6.18.10
debian/linux
6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.3-1
ubuntu/linux-hwe-edge*
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-aws-5.4<5.4.0-1158.168~18.04.1
5.4.0-1158.168~18.04.1
ubuntu/linux-azure*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-5.4<5.4.0-1162.168~18.04.1
5.4.0-1162.168~18.04.1
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-5.4<5.4.0-1161.170~18.04.1
5.4.0-1161.170~18.04.1
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-5.4<5.4.0-229.249~18.04.1
5.4.0-229.249~18.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux-ibm-5.4<5.4.0-1104.109~18.04.1
5.4.0-1104.109~18.04.1
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-oracle-5.4<5.4.0-1156.166~18.04.2
5.4.0-1156.166~18.04.2
ubuntu/linux-raspi-5.4<5.4.0-1143.156~18.04.1
5.4.0-1143.156~18.04.1
ubuntu/linux<5.4.0-229.249
5.4.0-229.249
ubuntu/linux-aws<5.4.0-1158.168
5.4.0-1158.168
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.15<5.15.0-1106.113~20.04.1
5.15.0-1106.113~20.04.1
ubuntu/linux-aws-5.8*
ubuntu/linux-azure<5.4.0-1162.168
5.4.0-1162.168
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.15<5.15.0-1111.120~20.04.1
5.15.0-1111.120~20.04.1
ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
ubuntu/linux-bluefield<5.4.0-1117.124
5.4.0-1117.124
ubuntu/linux-gcp<5.4.0-1161.170
5.4.0-1161.170
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.15<5.15.0-1106.115~20.04.1
5.15.0-1106.115~20.04.1
ubuntu/linux-gcp-5.8*
ubuntu/linux-gke*
ubuntu/linux-gke-5.15*
ubuntu/linux-gkeop*
ubuntu/linux-gkeop-5.15*
ubuntu/linux-hwe-5.11*
ubuntu/linux-hwe-5.13*
ubuntu/linux-hwe-5.15<5.15.0-177.187~20.04.1
5.15.0-177.187~20.04.1
ubuntu/linux-hwe-5.8*
ubuntu/linux-ibm<5.4.0-1104.109
5.4.0-1104.109
ubuntu/linux-ibm-5.15<5.15.0-1100.103~20.04.1
5.15.0-1100.103~20.04.1
ubuntu/linux-intel-5.13*
ubuntu/linux-intel-iotg-5.15<5.15.0-1101.107~20.04.1
5.15.0-1101.107~20.04.1
ubuntu/linux-iot<5.4.0-1062.65
5.4.0-1062.65
ubuntu/linux-kvm<5.4.0-1145.154
5.4.0-1145.154
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-177.187~20.04.1
5.15.0-177.187~20.04.1
ubuntu/linux-nvidia-tegra-5.15<5.15.0-1058.58~20.04.1
5.15.0-1058.58~20.04.1
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle<5.4.0-1156.166
5.4.0-1156.166
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.15<5.15.0-1104.110~20.04.1
5.15.0-1104.110~20.04.1
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi<5.4.0-1143.156
5.4.0-1143.156
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.15<5.15.0-1100.104~20.04.1
5.15.0-1100.104~20.04.1
ubuntu/linux-riscv-5.8*
ubuntu/linux-xilinx-zynqmp<5.4.0-1076.80
5.4.0-1076.80
ubuntu/linux-aws-fips<5.4.0-1158.168+fips1
5.4.0-1158.168+fips1
ubuntu/linux-azure-fips<5.4.0-1162.168+fips1
5.4.0-1162.168+fips1
ubuntu/linux-fips<5.4.0-1132.142
5.4.0-1132.142
ubuntu/linux-gcp-fips<5.4.0-1161.170+fips1
5.4.0-1161.170+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-177.187
5.15.0-177.187
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1106.113
5.15.0-1106.113
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-aws-6.8<6.8.0-1053.56~22.04.1
6.8.0-1053.56~22.04.1
ubuntu/linux-azure<5.15.0-1111.120
5.15.0-1111.120
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-6.8<6.8.0-1059.65~22.04.1
6.8.0-1059.65~22.04.1
ubuntu/linux-azure-fde<5.15.0-1114.123
5.15.0-1114.123
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-azure-fde-6.8<6.8.0-1058.65~22.04.1
6.8.0-1058.65~22.04.1
ubuntu/linux-gcp<5.15.0-1106.115
5.15.0-1106.115
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gcp-6.8<6.8.0-1060.63~22.04.1
6.8.0-1060.63~22.04.1
ubuntu/linux-gke<5.15.0-1102.108
5.15.0-1102.108
ubuntu/linux-gkeop<5.15.0-1089.97
5.15.0-1089.97
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-hwe-6.8<6.8.0-111.111~22.04.1
6.8.0-111.111~22.04.1
ubuntu/linux-ibm<5.15.0-1100.103
5.15.0-1100.103
ubuntu/linux-ibm-6.8<6.8.0-1052.52~22.04.1
6.8.0-1052.52~22.04.1
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1101.107
5.15.0-1101.107
ubuntu/linux-kvm<5.15.0-1098.103
5.15.0-1098.103
ubuntu/linux-lowlatency<5.15.0-177.187
5.15.0-177.187
ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-lowlatency-hwe-6.8<6.8.0-111.111.1~22.04.1
6.8.0-111.111.1~22.04.1
ubuntu/linux-nvidia<5.15.0-1101.102
5.15.0-1101.102
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5*
ubuntu/linux-nvidia-6.8<6.8.0-1052.55~22.04.1
6.8.0-1052.55~22.04.1
ubuntu/linux-nvidia-tegra<5.15.0-1058.58
5.15.0-1058.58
ubuntu/linux-nvidia-tegra-igx<5.15.0-1047.47
5.15.0-1047.47
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle<5.15.0-1103.109
5.15.0-1103.109
ubuntu/linux-oracle-6.5*
ubuntu/linux-oracle-6.8<6.8.0-1050.51~22.04.1
6.8.0-1050.51~22.04.1
ubuntu/linux-raspi<5.15.0-1100.103
5.15.0-1100.103
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-riscv-6.5*
ubuntu/linux-riscv-6.8<6.8.0-111.111~22.04.1
6.8.0-111.111~22.04.1
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-starfive-6.5*
ubuntu/linux-xilinx-zynqmp<5.15.0-1070.74
5.15.0-1070.74
ubuntu/linux-bluefield<5.15.0-1090.92
5.15.0-1090.92
ubuntu/linux-intel-iot-realtime<5.15.0-1098.100
5.15.0-1098.100
ubuntu/linux-realtime<5.15.0-1105.114
5.15.0-1105.114
ubuntu/linux-realtime-6.8<6.8.1-1048.49~22.04.1
6.8.1-1048.49~22.04.1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips<5.15.0-1106.113+fips1
5.15.0-1106.113+fips1
ubuntu/linux-azure-fips<5.15.0-1111.120+fips1
5.15.0-1111.120+fips1
ubuntu/linux-fips<5.15.0-177.187+fips1
5.15.0-177.187+fips1
ubuntu/linux-gcp-fips<5.15.0-1106.115+fips1
5.15.0-1106.115+fips1
ubuntu/linux<6.8.0-111.111
6.8.0-111.111
ubuntu/linux-aws<6.8.0-1053.56
6.8.0-1053.56
ubuntu/linux-aws-6.14*
ubuntu/linux-aws-6.17<6.17.0-1013.13~24.04.1
6.17.0-1013.13~24.04.1
ubuntu/linux-azure<6.8.0-1054.60
6.8.0-1054.60
ubuntu/linux-azure-6.11*
ubuntu/linux-azure-6.14*
ubuntu/linux-azure-6.17<6.17.0-1013.13~24.04.1
6.17.0-1013.13~24.04.1
ubuntu/linux-azure-fde<6.8.0-1058.65
6.8.0-1058.65
ubuntu/linux-azure-fde-6.14*
ubuntu/linux-azure-nvidia<6.8.0-1039.42
6.8.0-1039.42
ubuntu/linux-azure-nvidia-6.14*
ubuntu/linux-gcp<6.8.0-1055.58
6.8.0-1055.58
ubuntu/linux-gcp-6.11*
ubuntu/linux-gcp-6.14*
ubuntu/linux-gcp-6.17<6.17.0-1013.13~24.04.1
6.17.0-1013.13~24.04.1
ubuntu/linux-gke<6.8.0-1051.57
6.8.0-1051.57
ubuntu/linux-gkeop<6.8.0-1038.41
6.8.0-1038.41
ubuntu/linux-hwe-6.11*
ubuntu/linux-hwe-6.14*
ubuntu/linux-hwe-6.17<6.17.0-23.23~24.04.1
6.17.0-23.23~24.04.1
ubuntu/linux-ibm<6.8.0-1052.52
6.8.0-1052.52
ubuntu/linux-lowlatency<6.8.0-111.111.1
6.8.0-111.111.1
ubuntu/linux-lowlatency-hwe-6.11*
ubuntu/linux-nvidia<6.8.0-1052.55
6.8.0-1052.55
ubuntu/linux-nvidia-6.11*
ubuntu/linux-nvidia-6.17<6.17.0-1026.26
6.17.0-1026.26
ubuntu/linux-nvidia-lowlatency<6.8.0-1052.55.1
6.8.0-1052.55.1
ubuntu/linux-nvidia-tegra<6.8.0-1023.23
6.8.0-1023.23
ubuntu/linux-oem-6.11*
ubuntu/linux-oem-6.14*
ubuntu/linux-oem-6.17<6.17.0-1020.20
6.17.0-1020.20
ubuntu/linux-oem-6.8*
ubuntu/linux-oracle<6.8.0-1050.51
6.8.0-1050.51
ubuntu/linux-oracle-6.14*
ubuntu/linux-oracle-6.17<6.17.0-1014.14~24.04.1
6.17.0-1014.14~24.04.1
ubuntu/linux-raspi<6.8.0-1053.57
6.8.0-1053.57
ubuntu/linux-raspi-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-6.14*
ubuntu/linux-riscv-6.17<6.17.0-23.23.1~24.04.1
6.17.0-23.23.1~24.04.1
ubuntu/linux-xilinx<6.8.0-1029.30
6.8.0-1029.30
ubuntu/linux-bluefield<6.8.0-1022.26
6.8.0-1022.26
ubuntu/linux-raspi-realtime<6.8.0-2043.44
6.8.0-2043.44
ubuntu/linux-realtime<6.8.1-1048.49
6.8.1-1048.49
ubuntu/linux-realtime-6.14*
ubuntu/linux-realtime-6.17<6.17.0-1011.12~24.04.1
6.17.0-1011.12~24.04.1
ubuntu/linux-aws-fips<6.8.0-1053.56+fips1
6.8.0-1053.56+fips1
ubuntu/linux-azure-fips<6.8.0-1054.60+fips1
6.8.0-1054.60+fips1
ubuntu/linux-fips<6.8.0-111.111+fips1
6.8.0-111.111+fips1
ubuntu/linux-gcp-fips<6.8.0-1055.58+fips1
6.8.0-1055.58+fips1
ubuntu/linux<6.17.0-23.23
6.17.0-23.23
ubuntu/linux-aws<6.17.0-1013.13
6.17.0-1013.13
ubuntu/linux-azure<6.17.0-1013.13
6.17.0-1013.13
ubuntu/linux-azure-fde*
ubuntu/linux-gcp<6.17.0-1013.13
6.17.0-1013.13
ubuntu/linux-oracle<6.17.0-1012.12
6.17.0-1012.12
ubuntu/linux-raspi<6.17.0-1014.14
6.17.0-1014.14
ubuntu/linux-realtime<6.17.0-1011.12
6.17.0-1011.12
ubuntu/linux-riscv<6.17.0-23.23.1
6.17.0-23.23.1
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 5.10.253
  2. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 5.15.200
  3. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.1.163
  4. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.6.124
  5. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.12.70
  6. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.18.10
  7. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.3-1
  8. Upgrade

    Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1158.168~18.04.1
  9. Upgrade

    Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1162.168~18.04.1
  10. Upgrade

    Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1161.170~18.04.1
  11. Upgrade

    Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-229.249~18.04.1
  12. Upgrade

    Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1104.109~18.04.1
  13. Upgrade

    Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1156.166~18.04.2
  14. Upgrade

    Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1143.156~18.04.1
  15. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.4.0-229.249
  16. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.4.0-1158.168
  17. Upgrade

    Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1106.113~20.04.1
  18. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.4.0-1162.168
  19. Upgrade

    Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1111.120~20.04.1
  20. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 5.4.0-1117.124
  21. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1161.170
  22. Upgrade

    Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1106.115~20.04.1
  23. Upgrade

    Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-177.187~20.04.1
  24. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1104.109
  25. Upgrade

    Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1100.103~20.04.1
  26. Upgrade

    Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1101.107~20.04.1
  27. Upgrade

    Upgrade ubuntu/linux-iot to a version that resolves this vulnerability.

    Fixed in 5.4.0-1062.65
  28. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1145.154
  29. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-177.187~20.04.1
  30. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1058.58~20.04.1
  31. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1156.166
  32. Upgrade

    Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1104.110~20.04.1
  33. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.4.0-1143.156
  34. Upgrade

    Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1100.104~20.04.1
  35. Upgrade

    Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1076.80
  36. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1158.168+fips1
  37. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1162.168+fips1
  38. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1132.142
  39. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1161.170+fips1
  40. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.15.0-177.187
  41. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.15.0-1106.113
  42. Upgrade

    Upgrade ubuntu/linux-aws-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1053.56~22.04.1
  43. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.15.0-1111.120
  44. Upgrade

    Upgrade ubuntu/linux-azure-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1059.65~22.04.1
  45. Upgrade

    Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.

    Fixed in 5.15.0-1114.123
  46. Upgrade

    Upgrade ubuntu/linux-azure-fde-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1058.65~22.04.1
  47. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1106.115
  48. Upgrade

    Upgrade ubuntu/linux-gcp-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1060.63~22.04.1
  49. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 5.15.0-1102.108
  50. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 5.15.0-1089.97
  51. Upgrade

    Upgrade ubuntu/linux-hwe-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-111.111~22.04.1
  52. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1100.103
  53. Upgrade

    Upgrade ubuntu/linux-ibm-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1052.52~22.04.1
  54. Upgrade

    Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.

    Fixed in 5.15.0-1101.107
  55. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1098.103
  56. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.15.0-177.187
  57. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-111.111.1~22.04.1
  58. Upgrade

    Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.

    Fixed in 5.15.0-1101.102
  59. Upgrade

    Upgrade ubuntu/linux-nvidia-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1052.55~22.04.1
  60. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.

    Fixed in 5.15.0-1058.58
  61. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.

    Fixed in 5.15.0-1047.47
  62. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.15.0-1103.109
  63. Upgrade

    Upgrade ubuntu/linux-oracle-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-1050.51~22.04.1
  64. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.15.0-1100.103
  65. Upgrade

    Upgrade ubuntu/linux-riscv-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.0-111.111~22.04.1
  66. Upgrade

    Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1070.74
  67. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 5.15.0-1090.92
  68. Upgrade

    Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1098.100
  69. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1105.114
  70. Upgrade

    Upgrade ubuntu/linux-realtime-6.8 to a version that resolves this vulnerability.

    Fixed in 6.8.1-1048.49~22.04.1
  71. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1106.113+fips1
  72. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1111.120+fips1
  73. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-177.187+fips1
  74. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.15.0-1106.115+fips1
  75. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 6.8.0-111.111
  76. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 6.8.0-1053.56
  77. Upgrade

    Upgrade ubuntu/linux-aws-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-1013.13~24.04.1
  78. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 6.8.0-1054.60
  79. Upgrade

    Upgrade ubuntu/linux-azure-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-1013.13~24.04.1
  80. Upgrade

    Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.

    Fixed in 6.8.0-1058.65
  81. Upgrade

    Upgrade ubuntu/linux-azure-nvidia to a version that resolves this vulnerability.

    Fixed in 6.8.0-1039.42
  82. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 6.8.0-1055.58
  83. Upgrade

    Upgrade ubuntu/linux-gcp-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-1013.13~24.04.1
  84. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 6.8.0-1051.57
  85. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 6.8.0-1038.41
  86. Upgrade

    Upgrade ubuntu/linux-hwe-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-23.23~24.04.1
  87. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 6.8.0-1052.52
  88. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 6.8.0-111.111.1
  89. Upgrade

    Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.

    Fixed in 6.8.0-1052.55
  90. Upgrade

    Upgrade ubuntu/linux-nvidia-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-1026.26
  91. Upgrade

    Upgrade ubuntu/linux-nvidia-lowlatency to a version that resolves this vulnerability.

    Fixed in 6.8.0-1052.55.1
  92. Upgrade

    Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.

    Fixed in 6.8.0-1023.23
  93. Upgrade

    Upgrade ubuntu/linux-oem-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-1020.20
  94. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 6.8.0-1050.51
  95. Upgrade

    Upgrade ubuntu/linux-oracle-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-1014.14~24.04.1
  96. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 6.8.0-1053.57
  97. Upgrade

    Upgrade ubuntu/linux-riscv-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-23.23.1~24.04.1
  98. Upgrade

    Upgrade ubuntu/linux-xilinx to a version that resolves this vulnerability.

    Fixed in 6.8.0-1029.30
  99. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 6.8.0-1022.26
  100. Upgrade

    Upgrade ubuntu/linux-raspi-realtime to a version that resolves this vulnerability.

    Fixed in 6.8.0-2043.44
  101. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 6.8.1-1048.49
  102. Upgrade

    Upgrade ubuntu/linux-realtime-6.17 to a version that resolves this vulnerability.

    Fixed in 6.17.0-1011.12~24.04.1
  103. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-1053.56+fips1
  104. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-1054.60+fips1
  105. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-111.111+fips1
  106. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 6.8.0-1055.58+fips1
  107. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 6.17.0-23.23
  108. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 6.17.0-1013.13
  109. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 6.17.0-1013.13
  110. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 6.17.0-1013.13
  111. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 6.17.0-1012.12
  112. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 6.17.0-1014.14
  113. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 6.17.0-1011.12
  114. Upgrade

    Upgrade ubuntu/linux-riscv to a version that resolves this vulnerability.

    Fixed in 6.17.0-23.23.1
  115. Remove

    Remove nvmet-tcp module from your environment.

    If NVMe-oF TCP target functionality is not required, prevent the module from being loaded by creating `/etc/modprobe.d/blacklist-nvmet-tcp.conf` with `install nvmet-tcp /bin/false`, then unload the module with `rmmod nvmet-tcp`.

  116. Configuration

    Disable anonymous host access by writing `0` to `/sys/kernel/config/nvmet/subsystems/<name>/attr_allow_any_host` for each configured NVMe target subsystem name.

    Linux kernel NVMe target (nvmet) subsystem attr_allow_any_host ( /sys/kernel/config/nvmet/subsystems/<name>/attr_allow_any_host ) = 0
  117. Compensating control

    On the firewall, allow ingress to NVMe-oF TCP listener port 4420 only from trusted initiator IPs (e.g., `ufw allow from <trusted_ip> to any port 4420 proto tcp`) and deny other ingress to 4420/tcp (e.g., `ufw deny in 4420/tcp`).

  118. Operational

    For each configured NVMe target subsystem, list subsystem names and apply the anonymous-host access change: list with `ls /sys/kernel/config/nvmet/subsystems/`, then set `attr_allow_any_host` to `0` per `<name>`.

Event History

Feb 13, 2026
CVE Published
via MITRE·01:29 PM
Data Sourced
via MITRE·01:29 PM
DescriptionSeverity
Data Sourced
via OSV·01:29 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·02:16 PM
RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2026-23112?

The severity of CVE-2026-23112 has been classified as moderate due to potential denial-of-service impacts.

2

How do I fix CVE-2026-23112?

To fix CVE-2026-23112, update your Linux kernel to the latest version that includes the bounds check patch.

3

Which versions of the Linux kernel are affected by CVE-2026-23112?

CVE-2026-23112 affects specific versions of the Linux kernel where the nvmet_tcp_build_pdu_iovec function is improperly handling input.

4

What components are impacted by CVE-2026-23112?

CVE-2026-23112 impacts the NVMe over TCP component of the Linux kernel, particularly during PDU processing.

5

Is there a workaround for CVE-2026-23112?

There is no official workaround for CVE-2026-23112; the recommended resolution is to apply the appropriate kernel update.

Company

Resources

Contact

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