CVE-2026-46043: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv

Published May 27, 2026
·
Updated

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

RDMA/rxe: Validate pad and ICRC before payloadsize() in rxercv

rxercv() currently checks only that the incoming packet is at least headersize(pkt) bytes long before payloadsize() is used.

However, payloadsize() subtracts both the attacker-controlled BTH pad field and RXEICRCSIZE from pkt->paylen:

payloadsize = pkt->paylen - offset[RXEPAYLOAD] - bthpad(pkt) - RXEICRCSIZE

This means a short packet can still make payloadsize() underflow even if it includes enough bytes for the fixed headers. Simply requiring headersize(pkt) + RXEICRCSIZE is not sufficient either, because a packet with a forged non-zero BTH pad can still leave payloadsize() negative and pass an underflowed value to later receive-path users.

Fix this by validating pkt->paylen against the full minimum length required by payloadsize(): headersize(pkt) + bthpad(pkt) + RXEICRCSIZE.

Affected Software

260 affected componentsFixes available
The Linux Foundation Linux kernel (rxe RDMA)
Microsoft azl3 kernel 6.6.139.1-1<6.6.141.1-1
6.6.141.1-1
Linux Linux kernel>=4.8<5.10.258
Linux Linux kernel>=5.11<5.15.209
Linux Linux kernel>=5.16<6.1.175
Linux Linux kernel>=6.2<6.6.140
Linux Linux kernel>=6.7<6.12.86
Linux Linux kernel>=6.13<6.18.27
Linux Linux kernel>=6.19<7.0.4
debian/linux<=5.10.223-1
5.10.262-16.1.176-16.1.180-16.12.94-16.12.101-17.1.8-17.1.8-2
debian/linux-6.1
6.1.180-1~deb11u1
ubuntu/linux-azure<4.15.0-1205.220~14.04.1
4.15.0-1205.220~14.04.1
ubuntu/linux-aws-hwe<4.15.0-1194.207~16.04.1
4.15.0-1194.207~16.04.1
ubuntu/linux-azure<4.15.0-1204.219~16.04.1
4.15.0-1204.219~16.04.1
ubuntu/linux-gcp<4.15.0-1187.204~16.04.1
4.15.0-1187.204~16.04.1
ubuntu/linux-hwe<4.15.0-253.265~16.04.1
4.15.0-253.265~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux-oracle<4.15.0-1156.167~16.04.1
4.15.0-1156.167~16.04.1
ubuntu/linux<4.15.0-253.265
4.15.0-253.265
ubuntu/linux-aws<4.15.0-1194.207
4.15.0-1194.207
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-aws-5.4<5.4.0-1161.172~18.04.1
5.4.0-1161.172~18.04.1
ubuntu/linux-azure*
ubuntu/linux-azure-4.15<4.15.0-1204.219
4.15.0-1204.219
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-5.4<5.4.0-1166.172~18.04.1
5.4.0-1166.172~18.04.1
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-4.15<4.15.0-1187.204
4.15.0-1187.204
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-5.4<5.4.0-1164.173~18.04.1
5.4.0-1164.173~18.04.1
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
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ubuntu/linux-hwe-5.4<5.4.0-233.253~18.04.1
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ubuntu/linux-hwe-edge*
ubuntu/linux-ibm-5.4<5.4.0-1107.112~18.04.1
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ubuntu/linux-kvm<4.15.0-1176.181
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ubuntu/linux-oem*
ubuntu/linux-oracle<4.15.0-1156.167
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ubuntu/linux-aws-fips<4.15.0-2132.138
4.15.0-2132.138
ubuntu/linux-azure-fips<4.15.0-2112.118
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4.15.0-1149.161
ubuntu/linux-gcp-fips<4.15.0-2095.101
4.15.0-2095.101
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-233.253
5.4.0-233.253
ubuntu/linux-aws<5.4.0-1161.172
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ubuntu/linux-aws-5.8*
ubuntu/linux-azure<5.4.0-1166.172
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ubuntu/linux-azure-5.13*
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ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
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ubuntu/linux-gcp<5.4.0-1164.173
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ubuntu/linux-gcp-5.11*
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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<5.15.0-185.195~20.04.1
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ubuntu/linux-hwe-5.8*
ubuntu/linux-ibm<5.4.0-1107.112
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ubuntu/linux-ibm-5.15<5.15.0-1105.109~20.04.1
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ubuntu/linux-intel-5.13*
ubuntu/linux-intel-iotg-5.15<5.15.0-1106.112~20.04.1
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ubuntu/linux-iot<5.4.0-1065.68
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ubuntu/linux-kvm<5.4.0-1148.157
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ubuntu/linux-lowlatency-hwe-5.15<5.15.0-183.193~20.04.1
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ubuntu/linux-nvidia-tegra-5.15<5.15.0-1063.63~20.04.1
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ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle<5.4.0-1159.169
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ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.15<5.15.0-1108.114~20.04.1
5.15.0-1108.114~20.04.1
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi<5.4.0-1144.157
5.4.0-1144.157
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.15<5.15.0-1105.109~20.04.1
5.15.0-1105.109~20.04.1
ubuntu/linux-riscv-5.8*
ubuntu/linux-xilinx-zynqmp<5.4.0-1079.83
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ubuntu/linux-aws-fips<5.4.0-1161.172+fips1
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ubuntu/linux-azure-fips<5.4.0-1166.172+fips1
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ubuntu/linux-fips<5.4.0-1135.145
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ubuntu/linux-gcp-fips<5.4.0-1164.173+fips1
5.4.0-1164.173+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-185.195
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ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1111.118
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ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-aws-6.8<6.8.0-1060.63~22.04.1
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ubuntu/linux-azure<5.15.0-1116.125
5.15.0-1116.125
ubuntu/linux-azure-5.19*
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-6.5*
ubuntu/linux-azure-6.8<6.8.0-1063.71~22.04.1
6.8.0-1063.71~22.04.1
ubuntu/linux-azure-fde<5.15.0-1116.125
5.15.0-1116.125
ubuntu/linux-azure-fde-5.19*
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-azure-fde-6.8<6.8.0-1062.69~22.04.1
6.8.0-1062.69~22.04.1
ubuntu/linux-gcp<5.15.0-1111.121
5.15.0-1111.121
ubuntu/linux-gcp-5.19*
ubuntu/linux-gcp-6.2*
ubuntu/linux-gcp-6.5*
ubuntu/linux-gcp-6.8<6.8.0-1063.69~22.04.1
6.8.0-1063.69~22.04.1
ubuntu/linux-gke<5.15.0-1107.113
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ubuntu/linux-gkeop<5.15.0-1094.102
5.15.0-1094.102
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-hwe-6.8<6.8.0-136.136~22.04.1
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ubuntu/linux-ibm<5.15.0-1105.109
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ubuntu/linux-ibm-6.8<6.8.0-1060.61~22.04.1
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ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1106.112
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ubuntu/linux-kvm<5.15.0-1103.108
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ubuntu/linux-lowlatency<5.15.0-183.193
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ubuntu/linux-lowlatency-hwe-5.19*
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-lowlatency-hwe-6.5*
ubuntu/linux-lowlatency-hwe-6.8<6.8.0-134.134.1~22.04.1
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ubuntu/linux-nvidia<5.15.0-1106.107
5.15.0-1106.107
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5*
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ubuntu/linux-nvidia-tegra<5.15.0-1063.63
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ubuntu/linux-nvidia-tegra-igx<5.15.0-1052.52
5.15.0-1052.52
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle<5.15.0-1108.114
5.15.0-1108.114
ubuntu/linux-oracle-6.5*
ubuntu/linux-oracle-6.8<6.8.0-1057.58~22.04.1
6.8.0-1057.58~22.04.1
ubuntu/linux-raspi<5.15.0-1105.108
5.15.0-1105.108
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-riscv-6.5*
ubuntu/linux-riscv-6.8<6.8.0-134.134~22.04.1
6.8.0-134.134~22.04.1
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-starfive-6.5*
ubuntu/linux-xilinx-zynqmp<5.15.0-1074.78
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ubuntu/linux-bluefield<5.15.0-1095.97
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ubuntu/linux-intel-iot-realtime<5.15.0-1103.105
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ubuntu/linux-realtime<5.15.0-1110.119
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ubuntu/linux-realtime-6.8<6.8.1-1055.56~22.04.1
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ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips<5.15.0-1111.118+fips1
5.15.0-1111.118+fips1
ubuntu/linux-azure-fips<5.15.0-1116.125+fips1
5.15.0-1116.125+fips1
ubuntu/linux-fips<5.15.0-185.195+fips1
5.15.0-185.195+fips1
ubuntu/linux-gcp-fips<5.15.0-1111.121+fips1
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ubuntu/linux<6.8.0-134.134
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ubuntu/linux-aws<6.8.0-1060.63
6.8.0-1060.63
ubuntu/linux-aws-6.14*
ubuntu/linux-aws-6.17<6.17.0-1019.19~24.04.1
6.17.0-1019.19~24.04.1
ubuntu/linux-azure<6.8.0-1063.71
6.8.0-1063.71
ubuntu/linux-azure-6.11*
ubuntu/linux-azure-6.14*
ubuntu/linux-azure-6.17<6.17.0-1021.21~24.04.1
6.17.0-1021.21~24.04.1
ubuntu/linux-azure-fde<6.8.0-1062.69
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ubuntu/linux-azure-fde-6.14*
ubuntu/linux-azure-nvidia*
ubuntu/linux-azure-nvidia-6.14*
ubuntu/linux-gcp<6.8.0-1063.69
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ubuntu/linux-gcp-6.11*
ubuntu/linux-gcp-6.14*
ubuntu/linux-gcp-6.17<6.17.0-1020.22~24.04.1
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ubuntu/linux-gke<6.8.0-1058.64
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ubuntu/linux-gkeop<6.8.0-1045.48
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ubuntu/linux-hwe-6.11*
ubuntu/linux-hwe-6.14*
ubuntu/linux-hwe-6.17<6.17.0-40.40~24.04.1
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ubuntu/linux-hwe-7.0<7.0.0-28.28~24.04.1
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ubuntu/linux-ibm<6.8.0-1060.61
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ubuntu/linux-lowlatency<6.8.0-134.134.1
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ubuntu/linux-lowlatency-hwe-6.11*
ubuntu/linux-nvidia<6.8.0-1058.61
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ubuntu/linux-nvidia-6.11*
ubuntu/linux-nvidia-6.17<6.17.0-1026.26
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ubuntu/linux-nvidia-lowlatency<6.8.0-1058.61.1
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ubuntu/linux-nvidia-tegra<6.8.0-1029.30
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ubuntu/linux-oem-6.11*
ubuntu/linux-oem-6.14*
ubuntu/linux-oem-6.17<6.17.0-1028.28
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ubuntu/linux-oem-6.8*
ubuntu/linux-oracle<6.8.0-1057.58
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ubuntu/linux-oracle-6.14*
ubuntu/linux-oracle-6.17<6.17.0-1018.18~24.04.1
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ubuntu/linux-raspi<6.8.0-1060.64
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ubuntu/linux-raspi-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-6.14*
ubuntu/linux-riscv-6.17*
ubuntu/linux-vmware<6.8.0-1008.8
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ubuntu/linux-xilinx<6.8.0-1032.33
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ubuntu/linux-bluefield<6.8.0-1026.30
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ubuntu/linux-raspi-realtime<6.8.0-2049.50
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ubuntu/linux-realtime<6.8.1-1055.56
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ubuntu/linux-realtime-6.14*
ubuntu/linux-realtime-6.17<6.17.0-1017.19~24.04.1
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ubuntu/linux-aws-fips<6.8.0-1060.63+fips1
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ubuntu/linux-azure-fips<6.8.0-1062.69+fips1
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ubuntu/linux-fips<6.8.0-134.134+fips1
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ubuntu/linux-gcp-fips<6.8.0-1063.69+fips1
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ubuntu/linux<6.17.0-40.40
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ubuntu/linux-aws<6.17.0-1019.19
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ubuntu/linux-azure*
ubuntu/linux-azure-fde*
ubuntu/linux-gcp<6.17.0-1020.22
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ubuntu/linux-oracle<6.17.0-1018.18
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ubuntu/linux-raspi<6.17.0-1021.21
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ubuntu/linux-realtime<6.17.0-1017.19
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ubuntu/linux-riscv<6.17.0-40.40.1
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ubuntu/linux-aws<7.0.0-1008.8
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ubuntu/linux-gcp<7.0.0-1007.7
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ubuntu/linux-ibm<7.0.0-1009.9
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ubuntu/linux-nvidia<7.0.0-1013.13
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ubuntu/linux-oem-7.0<7.0.0-1008.8
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ubuntu/linux-oracle<7.0.0-1007.7
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ubuntu/linux-raspi<7.0.0-1014.14
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ubuntu/linux-realtime<7.0.0-27.27.1
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ubuntu/linux-riscv<7.0.0-27.27.1
7.0.0-27.27.1
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 6.6.141.1-1
  2. Upgrade

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

    Fixed in 5.10.262-1Fixed in 6.1.176-1Fixed in 6.1.180-1Fixed in 6.12.94-1Fixed in 6.12.101-1Fixed in 7.1.8-1Fixed in 7.1.8-2
  3. Upgrade

    Upgrade debian/linux-6.1 to a version that resolves this vulnerability.

    Fixed in 6.1.180-1~deb11u1
  4. Upgrade

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

    Fixed in 4.15.0-1205.220~14.04.1
  5. Upgrade

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

    Fixed in 4.15.0-1194.207~16.04.1
  6. Upgrade

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

    Fixed in 4.15.0-1204.219~16.04.1
  7. Upgrade

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

    Fixed in 4.15.0-1187.204~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-253.265~16.04.1
  9. Upgrade

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

    Fixed in 4.15.0-1156.167~16.04.1
  10. Upgrade

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

    Fixed in 4.15.0-253.265
  11. Upgrade

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

    Fixed in 4.15.0-1194.207
  12. Upgrade

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

    Fixed in 5.4.0-1161.172~18.04.1
  13. Upgrade

    Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1204.219
  14. Upgrade

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

    Fixed in 5.4.0-1166.172~18.04.1
  15. Upgrade

    Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1187.204
  16. Upgrade

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

    Fixed in 5.4.0-1164.173~18.04.1
  17. Upgrade

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

    Fixed in 5.4.0-233.253~18.04.1
  18. Upgrade

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

    Fixed in 5.4.0-1107.112~18.04.1
  19. Upgrade

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

    Fixed in 4.15.0-1176.181
  20. Upgrade

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

    Fixed in 4.15.0-1156.167
  21. Upgrade

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

    Fixed in 5.4.0-1159.169~18.04.1
  22. Upgrade

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

    Fixed in 5.4.0-1144.157~18.04.1
  23. Upgrade

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

    Fixed in 4.15.0-2132.138
  24. Upgrade

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

    Fixed in 4.15.0-2112.118
  25. Upgrade

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

    Fixed in 4.15.0-1149.161
  26. Upgrade

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

    Fixed in 4.15.0-2095.101
  27. Upgrade

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

    Fixed in 5.4.0-233.253
  28. Upgrade

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

    Fixed in 5.4.0-1161.172
  29. Upgrade

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

    Fixed in 5.15.0-1111.118~20.04.1
  30. Upgrade

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

    Fixed in 5.4.0-1166.172
  31. Upgrade

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

    Fixed in 5.15.0-1116.125~20.04.1
  32. Upgrade

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

    Fixed in 5.15.0-1116.125~20.04.1
  33. Upgrade

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

    Fixed in 5.4.0-1120.127
  34. Upgrade

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

    Fixed in 5.4.0-1164.173
  35. Upgrade

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

    Fixed in 5.15.0-1111.121~20.04.1
  36. Upgrade

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

    Fixed in 5.15.0-185.195~20.04.1
  37. Upgrade

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

    Fixed in 5.4.0-1107.112
  38. Upgrade

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

    Fixed in 5.15.0-1105.109~20.04.1
  39. Upgrade

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

    Fixed in 5.15.0-1106.112~20.04.1
  40. Upgrade

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

    Fixed in 5.4.0-1065.68
  41. Upgrade

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

    Fixed in 5.4.0-1148.157
  42. Upgrade

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

    Fixed in 5.15.0-183.193~20.04.1
  43. Upgrade

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

    Fixed in 5.15.0-1063.63~20.04.1
  44. Upgrade

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

    Fixed in 5.4.0-1159.169
  45. Upgrade

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

    Fixed in 5.15.0-1108.114~20.04.1
  46. Upgrade

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

    Fixed in 5.4.0-1144.157
  47. Upgrade

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

    Fixed in 5.15.0-1105.109~20.04.1
  48. Upgrade

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

    Fixed in 5.4.0-1079.83
  49. Upgrade

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

    Fixed in 5.4.0-1161.172+fips1
  50. Upgrade

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

    Fixed in 5.4.0-1166.172+fips1
  51. Upgrade

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

    Fixed in 5.4.0-1135.145
  52. Upgrade

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

    Fixed in 5.4.0-1164.173+fips1
  53. Upgrade

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

    Fixed in 5.15.0-185.195
  54. Upgrade

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

    Fixed in 5.15.0-1111.118
  55. Upgrade

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

    Fixed in 6.8.0-1060.63~22.04.1
  56. Upgrade

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

    Fixed in 5.15.0-1116.125
  57. Upgrade

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

    Fixed in 6.8.0-1063.71~22.04.1
  58. Upgrade

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

    Fixed in 5.15.0-1116.125
  59. Upgrade

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

    Fixed in 6.8.0-1062.69~22.04.1
  60. Upgrade

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

    Fixed in 5.15.0-1111.121
  61. Upgrade

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

    Fixed in 6.8.0-1063.69~22.04.1
  62. Upgrade

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

    Fixed in 5.15.0-1107.113
  63. Upgrade

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

    Fixed in 5.15.0-1094.102
  64. Upgrade

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

    Fixed in 6.8.0-136.136~22.04.1
  65. Upgrade

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

    Fixed in 5.15.0-1105.109
  66. Upgrade

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

    Fixed in 6.8.0-1060.61~22.04.1
  67. Upgrade

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

    Fixed in 5.15.0-1106.112
  68. Upgrade

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

    Fixed in 5.15.0-1103.108
  69. Upgrade

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

    Fixed in 5.15.0-183.193
  70. Upgrade

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

    Fixed in 6.8.0-134.134.1~22.04.1
  71. Upgrade

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

    Fixed in 5.15.0-1106.107
  72. Upgrade

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

    Fixed in 6.8.0-1058.61~22.04.1
  73. Upgrade

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

    Fixed in 5.15.0-1063.63
  74. Upgrade

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

    Fixed in 5.15.0-1052.52
  75. Upgrade

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

    Fixed in 5.15.0-1108.114
  76. Upgrade

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

    Fixed in 6.8.0-1057.58~22.04.1
  77. Upgrade

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

    Fixed in 5.15.0-1105.108
  78. Upgrade

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

    Fixed in 6.8.0-134.134~22.04.1
  79. Upgrade

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

    Fixed in 5.15.0-1074.78
  80. Upgrade

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

    Fixed in 5.15.0-1095.97
  81. Upgrade

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

    Fixed in 5.15.0-1103.105
  82. Upgrade

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

    Fixed in 5.15.0-1110.119
  83. Upgrade

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

    Fixed in 6.8.1-1055.56~22.04.1
  84. Upgrade

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

    Fixed in 5.15.0-1111.118+fips1
  85. Upgrade

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

    Fixed in 5.15.0-1116.125+fips1
  86. Upgrade

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

    Fixed in 5.15.0-185.195+fips1
  87. Upgrade

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

    Fixed in 5.15.0-1111.121+fips1
  88. Upgrade

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

    Fixed in 6.8.0-134.134
  89. Upgrade

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

    Fixed in 6.8.0-1060.63
  90. Upgrade

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

    Fixed in 6.17.0-1019.19~24.04.1
  91. Upgrade

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

    Fixed in 6.8.0-1063.71
  92. Upgrade

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

    Fixed in 6.17.0-1021.21~24.04.1
  93. Upgrade

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

    Fixed in 6.8.0-1062.69
  94. Upgrade

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

    Fixed in 6.8.0-1063.69
  95. Upgrade

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

    Fixed in 6.17.0-1020.22~24.04.1
  96. Upgrade

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

    Fixed in 6.8.0-1058.64
  97. Upgrade

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

    Fixed in 6.8.0-1045.48
  98. Upgrade

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

    Fixed in 6.17.0-40.40~24.04.1
  99. Upgrade

    Upgrade ubuntu/linux-hwe-7.0 to a version that resolves this vulnerability.

    Fixed in 7.0.0-28.28~24.04.1
  100. Upgrade

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

    Fixed in 6.8.0-1060.61
  101. Upgrade

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

    Fixed in 6.8.0-134.134.1
  102. Upgrade

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

    Fixed in 6.8.0-1058.61
  103. Upgrade

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

    Fixed in 6.17.0-1026.26
  104. Upgrade

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

    Fixed in 6.8.0-1058.61.1
  105. Upgrade

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

    Fixed in 6.8.0-1029.30
  106. Upgrade

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

    Fixed in 6.17.0-1028.28
  107. Upgrade

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

    Fixed in 6.8.0-1057.58
  108. Upgrade

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

    Fixed in 6.17.0-1018.18~24.04.1
  109. Upgrade

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

    Fixed in 6.8.0-1060.64
  110. Upgrade

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

    Fixed in 6.8.0-1008.8
  111. Upgrade

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

    Fixed in 6.8.0-1032.33
  112. Upgrade

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

    Fixed in 6.8.0-1026.30
  113. Upgrade

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

    Fixed in 6.8.0-2049.50
  114. Upgrade

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

    Fixed in 6.8.1-1055.56
  115. Upgrade

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

    Fixed in 6.17.0-1017.19~24.04.1
  116. Upgrade

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

    Fixed in 6.8.0-1060.63+fips1
  117. Upgrade

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

    Fixed in 6.8.0-1062.69+fips1
  118. Upgrade

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

    Fixed in 6.8.0-134.134+fips1
  119. Upgrade

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

    Fixed in 6.8.0-1063.69+fips1
  120. Upgrade

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

    Fixed in 6.17.0-40.40
  121. Upgrade

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

    Fixed in 6.17.0-1019.19
  122. Upgrade

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

    Fixed in 6.17.0-1020.22
  123. Upgrade

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

    Fixed in 6.17.0-1018.18
  124. Upgrade

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

    Fixed in 6.17.0-1021.21
  125. Upgrade

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

    Fixed in 6.17.0-1017.19
  126. Upgrade

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

    Fixed in 6.17.0-40.40.1
  127. Upgrade

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

    Fixed in 7.0.0-27.27
  128. Upgrade

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

    Fixed in 7.0.0-1008.8
  129. Upgrade

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

    Fixed in 7.0.0-1010.10
  130. Upgrade

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

    Fixed in 7.0.0-1009.9
  131. Upgrade

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

    Fixed in 7.0.0-1007.7
  132. Upgrade

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

    Fixed in 7.0.0-1009.9
  133. Upgrade

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

    Fixed in 7.0.0-1013.13
  134. Upgrade

    Upgrade ubuntu/linux-oem-7.0 to a version that resolves this vulnerability.

    Fixed in 7.0.0-1008.8
  135. Upgrade

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

    Fixed in 7.0.0-1007.7
  136. Upgrade

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

    Fixed in 7.0.0-1014.14
  137. Upgrade

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

    Fixed in 7.0.0-27.27.1
  138. Upgrade

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

    Fixed in 7.0.0-27.27.1
  139. Compensating control

    In RDMA/rxe rxe_rcv(), validate pkt->paylen against the full minimum length required by payload_size(): header_size(pkt) + bth_pad(pkt) + RXE_ICRC_SIZE, before calling payload_size(), to prevent underflow from attacker-controlled BTH padding and RXE_ICRC_SIZE subtraction.

Event History

May 27, 2026
CVE Published
via MITRE·12:56 PM
Data Sourced
via MITRE·12:56 PM
DescriptionSeverity
Data Sourced
via OSV·02:17 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·02:17 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Red Hat·03:12 PM
DescriptionSeverityAffected Software
May 28, 2026
Data Sourced
via Microsoft·08:07 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:07 AM
Affected Software
Oct 19, 2026
Data Sourced
via NVD·08:18 PM
Weakness

Frequently Asked Questions

1

What is the severity of CVE-2026-46043?

The severity of CVE-2026-46043 is critical with a CVSS score of 9.1.

2

How do I fix CVE-2026-46043?

To fix CVE-2026-46043, update the Linux kernel to the latest version that includes the patches addressing this vulnerability.

3

What systems are impacted by CVE-2026-46043?

CVE-2026-46043 affects the Linux kernel, specifically the rxe RDMA component.

4

What kind of attack does CVE-2026-46043 facilitate?

CVE-2026-46043 could allow an attacker to exploit vulnerabilities in packet handling, potentially leading to data corruption or unauthorized access.

5

Is CVE-2026-46043 likely to be exploited in the wild?

Given its critical severity, CVE-2026-46043 could be targeted for exploitation in the wild, making timely remediation essential.

Company

Resources

Contact

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