CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags

Published May 7, 2026
·
Updated

In multiple locations, there is a possible memory corruption due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Other sources

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

— Launchpad

The “Dirty Frag” vulnerability is a chained local privilege escalation (LPE) issue in the Linux kernel that combines flaws in the ESP/XFRM and RXRPC subsystems to allow an unprivileged local attacker to gain root access on major Linux distributions. The attack abuses kernel page-cache manipulation and network protocol handling to overwrite privileged binaries and execute arbitrary code with elevated privileges. Exploitation differs by distribution: the ESP issue affects systems permitting unprivileged user namespaces, while the RXRPC issue impacts distributions with RXRPC enabled, such as Ubuntu. Together, the vulnerabilities provide broad cross-distribution root compromise capability, with mitigations involving disabling vulnerable kernel modules (esp4, esp6, and rxrpc) until upstream patches are fully merged and deployed.

— Red Hat

xfrm: esp: avoid in-place decrypt on shared skb frags

— Microsoft

Affected Software

266 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.137.1-2
Patch available
IBM API Connect<=V10.0.8.0 - V10.0.8.9
linux/kernel>=4.11.0<5.10.255
5.10.255
linux/kernel>=5.11.0<5.15.205
5.15.205
linux/kernel>=5.16.0<5.15.206
5.15.206
linux/kernel>=6.2.0<6.1.172
6.1.172
linux/kernel>=6.7.0<6.12.87
6.12.87
linux/kernel>=6.13.0<6.18.28
6.18.28
linux/kernel>=6.19.0<7.0.5
7.0.5
Linux Linux kernel>=4.11<5.10.255
Linux Linux kernel>=5.12<5.15.205
Linux Linux kernel>=5.16<6.1.171
Linux Linux kernel>=6.2<6.6.138
Linux Linux kernel>=6.7<6.12.87
Linux Linux kernel>=6.13<6.18.28
Linux Linux kernel>=7.0<7.0.5
Google Android
ubuntu/linux-azure<4.15.0-1202.217~14.04.1
4.15.0-1202.217~14.04.1
ubuntu/linux-aws-hwe<4.15.0-1194.207~16.04.1
4.15.0-1194.207~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux<4.15.0-251.263
4.15.0-251.263
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<5.4.0-1160.170~18.04.1
5.4.0-1160.170~18.04.1
ubuntu/linux-azure*
ubuntu/linux-azure-4.15<4.15.0-1202.217
4.15.0-1202.217
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-5.4<5.4.0-1164.170~18.04.1
5.4.0-1164.170~18.04.1
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-4.15<4.15.0-1186.203
4.15.0-1186.203
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-5.4<5.4.0-1163.172~18.04.1
5.4.0-1163.172~18.04.1
ubuntu/linux-gke-4.15*
ubuntu/linux-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-5.4<5.4.0-231.251~18.04.1
5.4.0-231.251~18.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux-ibm-5.4<5.4.0-1107.112~18.04.1
5.4.0-1107.112~18.04.1
ubuntu/linux-kvm<4.15.0-1175.180
4.15.0-1175.180
ubuntu/linux-oem*
ubuntu/linux-oracle<4.15.0-1155.166
4.15.0-1155.166
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-oracle-5.4<5.4.0-1158.168~18.04.1
5.4.0-1158.168~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1143.156~18.04.1
5.4.0-1143.156~18.04.1
ubuntu/linux-aws-fips<4.15.0-2132.138
4.15.0-2132.138
ubuntu/linux-azure-fips<4.15.0-2111.117
4.15.0-2111.117
ubuntu/linux-fips<4.15.0-1148.160
4.15.0-1148.160
ubuntu/linux-gcp-fips<4.15.0-2094.100
4.15.0-2094.100
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-231.251
5.4.0-231.251
ubuntu/linux-aws<5.4.0-1160.170
5.4.0-1160.170
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.15<5.15.0-1109.116~20.04.1
5.15.0-1109.116~20.04.1
ubuntu/linux-aws-5.8*
ubuntu/linux-azure<5.4.0-1164.170
5.4.0-1164.170
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.15<5.15.0-1114.123~20.04.1
5.15.0-1114.123~20.04.1
ubuntu/linux-azure-5.8*
ubuntu/linux-azure-fde*
ubuntu/linux-bluefield<5.4.0-1119.126
5.4.0-1119.126
ubuntu/linux-gcp<5.4.0-1163.172
5.4.0-1163.172
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.15<5.15.0-1109.118~20.04.1
5.15.0-1109.118~20.04.1
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<5.15.0-181.191~20.04.1
5.15.0-181.191~20.04.1
ubuntu/linux-hwe-5.8*
ubuntu/linux-ibm<5.4.0-1107.112
5.4.0-1107.112
ubuntu/linux-ibm-5.15<5.15.0-1103.106~20.04.1
5.15.0-1103.106~20.04.1
ubuntu/linux-intel-5.13*
ubuntu/linux-intel-iotg-5.15<5.15.0-1104.110~20.04.1
5.15.0-1104.110~20.04.1
ubuntu/linux-iot<5.4.0-1064.67
5.4.0-1064.67
ubuntu/linux-kvm<5.4.0-1147.156
5.4.0-1147.156
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-181.191~20.04.1
5.15.0-181.191~20.04.1
ubuntu/linux-nvidia-tegra-5.15<5.15.0-1061.61~20.04.1
5.15.0-1061.61~20.04.1
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle<5.4.0-1158.168
5.4.0-1158.168
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.15<5.15.0-1106.112~20.04.1
5.15.0-1106.112~20.04.1
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<5.15.0-1103.107~20.04.1
5.15.0-1103.107~20.04.1
ubuntu/linux-riscv-5.8*
ubuntu/linux-xilinx-zynqmp<5.4.0-1078.82
5.4.0-1078.82
ubuntu/linux-aws-fips<5.4.0-1160.170+fips1
5.4.0-1160.170+fips1
ubuntu/linux-azure-fips<5.4.0-1164.170+fips1
5.4.0-1164.170+fips1
ubuntu/linux-fips<5.4.0-1134.144
5.4.0-1134.144
ubuntu/linux-gcp-fips<5.4.0-1163.172+fips1
5.4.0-1163.172+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-181.191
5.15.0-181.191
ubuntu/linux-allwinner-5.19*
ubuntu/linux-aws<5.15.0-1109.116
5.15.0-1109.116
ubuntu/linux-aws-5.19*
ubuntu/linux-aws-6.2*
ubuntu/linux-aws-6.5*
ubuntu/linux-aws-6.8<6.8.0-1057.60~22.04.1
6.8.0-1057.60~22.04.1
ubuntu/linux-azure<5.15.0-1114.123
5.15.0-1114.123
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<5.15.0-1109.118
5.15.0-1109.118
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<5.15.0-1105.111
5.15.0-1105.111
ubuntu/linux-gkeop<5.15.0-1092.100
5.15.0-1092.100
ubuntu/linux-hwe-5.19*
ubuntu/linux-hwe-6.2*
ubuntu/linux-hwe-6.5*
ubuntu/linux-hwe-6.8<6.8.0-124.124~22.04.1
6.8.0-124.124~22.04.1
ubuntu/linux-ibm<5.15.0-1103.106
5.15.0-1103.106
ubuntu/linux-ibm-6.8<6.8.0-1057.58~22.04.1
6.8.0-1057.58~22.04.1
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1104.110
5.15.0-1104.110
ubuntu/linux-kvm<5.15.0-1101.106
5.15.0-1101.106
ubuntu/linux-lowlatency<5.15.0-181.191
5.15.0-181.191
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
6.8.0-134.134.1~22.04.1
ubuntu/linux-nvidia<5.15.0-1104.105
5.15.0-1104.105
ubuntu/linux-nvidia-6.2*
ubuntu/linux-nvidia-6.5*
ubuntu/linux-nvidia-6.8<6.8.0-1055.58~22.04.1
6.8.0-1055.58~22.04.1
ubuntu/linux-nvidia-tegra<5.15.0-1061.61
5.15.0-1061.61
ubuntu/linux-nvidia-tegra-igx<5.15.0-1050.50
5.15.0-1050.50
ubuntu/linux-oem-5.17*
ubuntu/linux-oem-6.0*
ubuntu/linux-oem-6.1*
ubuntu/linux-oem-6.5*
ubuntu/linux-oracle<5.15.0-1106.112
5.15.0-1106.112
ubuntu/linux-oracle-6.5*
ubuntu/linux-oracle-6.8<6.8.0-1054.55~22.04.1
6.8.0-1054.55~22.04.1
ubuntu/linux-raspi<5.15.0-1103.106
5.15.0-1103.106
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.19*
ubuntu/linux-riscv-6.5*
ubuntu/linux-riscv-6.8<6.8.0-124.124~22.04.1
6.8.0-124.124~22.04.1
ubuntu/linux-starfive-5.19*
ubuntu/linux-starfive-6.2*
ubuntu/linux-starfive-6.5*
ubuntu/linux-xilinx-zynqmp<5.15.0-1074.78
5.15.0-1074.78
ubuntu/linux-bluefield<5.15.0-1093.95
5.15.0-1093.95
ubuntu/linux-intel-iot-realtime<5.15.0-1101.103
5.15.0-1101.103
ubuntu/linux-realtime<5.15.0-1108.117
5.15.0-1108.117
ubuntu/linux-realtime-6.8<6.8.1-1052.53~22.04.1
6.8.1-1052.53~22.04.1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-aws-fips<5.15.0-1109.116+fips1
5.15.0-1109.116+fips1
ubuntu/linux-azure-fips<5.15.0-1114.123+fips1
5.15.0-1114.123+fips1
ubuntu/linux-fips<5.15.0-181.191+fips1
5.15.0-181.191+fips1
ubuntu/linux-gcp-fips<5.15.0-1109.118+fips1
5.15.0-1109.118+fips1
ubuntu/linux<6.8.0-124.124
6.8.0-124.124
ubuntu/linux-aws<6.8.0-1057.60
6.8.0-1057.60
ubuntu/linux-aws-6.14*
ubuntu/linux-aws-6.17<6.17.0-1017.17~24.04.1
6.17.0-1017.17~24.04.1
ubuntu/linux-azure<6.8.0-1058.64
6.8.0-1058.64
ubuntu/linux-azure-6.11*
ubuntu/linux-azure-6.14*
ubuntu/linux-azure-6.17<6.17.0-1017.17~24.04.1
6.17.0-1017.17~24.04.1
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<6.8.0-1060.63
6.8.0-1060.63
ubuntu/linux-gcp-6.11*
ubuntu/linux-gcp-6.14*
ubuntu/linux-gcp-6.17<6.17.0-1018.19~24.04.1
6.17.0-1018.19~24.04.1
ubuntu/linux-gke<6.8.0-1055.61
6.8.0-1055.61
ubuntu/linux-gkeop<6.8.0-1042.45
6.8.0-1042.45
ubuntu/linux-hwe-6.11*
ubuntu/linux-hwe-6.14*
ubuntu/linux-hwe-6.17<6.17.0-35.35~24.04.1
6.17.0-35.35~24.04.1
ubuntu/linux-hwe-7.0<7.0.0-28.28~24.04.1
7.0.0-28.28~24.04.1
ubuntu/linux-ibm<6.8.0-1057.58
6.8.0-1057.58
ubuntu/linux-lowlatency<6.8.0-134.134.1
6.8.0-134.134.1
ubuntu/linux-lowlatency-hwe-6.11*
ubuntu/linux-nvidia<6.8.0-1055.58
6.8.0-1055.58
ubuntu/linux-nvidia-6.11*
ubuntu/linux-nvidia-6.17<6.17.0-1021.21
6.17.0-1021.21
ubuntu/linux-nvidia-lowlatency<6.8.0-1055.58.1
6.8.0-1055.58.1
ubuntu/linux-nvidia-tegra<6.8.0-1026.26
6.8.0-1026.26
ubuntu/linux-oem-6.11*
ubuntu/linux-oem-6.14*
ubuntu/linux-oem-6.17<6.17.0-1024.24
6.17.0-1024.24
ubuntu/linux-oem-6.8*
ubuntu/linux-oracle<6.8.0-1054.55
6.8.0-1054.55
ubuntu/linux-oracle-6.14*
ubuntu/linux-oracle-6.17<6.17.0-1016.16~24.04.1
6.17.0-1016.16~24.04.1
ubuntu/linux-raspi<6.8.0-1057.61
6.8.0-1057.61
ubuntu/linux-raspi-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-riscv-6.14*
ubuntu/linux-riscv-6.17<6.17.0-35.35.1~24.04.1
6.17.0-35.35.1~24.04.1
ubuntu/linux-xilinx<6.8.0-1032.33
6.8.0-1032.33
ubuntu/linux-bluefield<6.8.0-1023.27
6.8.0-1023.27
ubuntu/linux-raspi-realtime<6.8.0-2046.47
6.8.0-2046.47
ubuntu/linux-realtime<6.8.1-1052.53
6.8.1-1052.53
ubuntu/linux-realtime-6.14*
ubuntu/linux-realtime-6.17<6.17.0-1014.16~24.04.1
6.17.0-1014.16~24.04.1
ubuntu/linux-aws-fips<6.8.0-1057.60+fips1
6.8.0-1057.60+fips1
ubuntu/linux-azure-fips<6.8.0-1059.65+fips1
6.8.0-1059.65+fips1
ubuntu/linux-fips<6.8.0-124.124+fips1
6.8.0-124.124+fips1
ubuntu/linux-gcp-fips<6.8.0-1060.63+fips1
6.8.0-1060.63+fips1
ubuntu/linux<6.17.0-35.35
6.17.0-35.35
ubuntu/linux-aws<6.17.0-1017.17
6.17.0-1017.17
ubuntu/linux-azure<6.17.0-1017.17
6.17.0-1017.17
ubuntu/linux-azure-fde*
ubuntu/linux-gcp<6.17.0-1018.19
6.17.0-1018.19
ubuntu/linux-oracle<6.17.0-1016.16
6.17.0-1016.16
ubuntu/linux-raspi<6.17.0-1018.18
6.17.0-1018.18
ubuntu/linux-realtime<6.17.0-1014.16
6.17.0-1014.16
ubuntu/linux-riscv<6.17.0-35.35.1
6.17.0-35.35.1
ubuntu/linux<7.0.0-22.22
7.0.0-22.22
ubuntu/linux-aws<7.0.0-1006.6
7.0.0-1006.6
ubuntu/linux-azure<7.0.0-1007.7
7.0.0-1007.7
ubuntu/linux-azure-fde<7.0.0-1006.6
7.0.0-1006.6
ubuntu/linux-gcp<7.0.0-1005.5
7.0.0-1005.5
ubuntu/linux-ibm<7.0.0-1007.7
7.0.0-1007.7
ubuntu/linux-nvidia<7.0.0-1009.9
7.0.0-1009.9
ubuntu/linux-oem-7.0<7.0.0-1008.8
7.0.0-1008.8
ubuntu/linux-oracle<7.0.0-1005.5
7.0.0-1005.5
ubuntu/linux-raspi<7.0.0-1011.11
7.0.0-1011.11
ubuntu/linux-realtime<7.0.0-22.22.1
7.0.0-22.22.1
ubuntu/linux-riscv<7.0.0-22.22.1
7.0.0-22.22.1
ubuntu/linux-vmware*
android/:linux_kernel:>=:0<:2026-11-05
:2026-11-05
debian/linux<6.1.170-3
6.1.170-3
debian/linux<6.12.86-1
6.12.86-1
debian/linux<7.0.4-1
7.0.4-1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.4-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 5.10.255
  2. Upgrade

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

    Fixed in 5.15.205
  3. Upgrade

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

    Fixed in 5.15.206
  4. Upgrade

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

    Fixed in 6.1.172
  5. Upgrade

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

    Fixed in 6.12.87
  6. Upgrade

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

    Fixed in 6.18.28
  7. Upgrade

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

    Fixed in 7.0.5
  8. Upgrade

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

    Fixed in 4.15.0-1202.217~14.04.1
  9. Upgrade

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

    Fixed in 4.15.0-1194.207~16.04.1
  10. Upgrade

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

    Fixed in 4.15.0-251.263
  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 5.4.0-1160.170~18.04.1
  13. Upgrade

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

    Fixed in 4.15.0-1202.217
  14. Upgrade

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

    Fixed in 5.4.0-1164.170~18.04.1
  15. Upgrade

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

    Fixed in 4.15.0-1186.203
  16. Upgrade

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

    Fixed in 5.4.0-1163.172~18.04.1
  17. Upgrade

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

    Fixed in 5.4.0-231.251~18.04.1
  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 4.15.0-1175.180
  20. Upgrade

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

    Fixed in 4.15.0-1155.166
  21. Upgrade

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

    Fixed in 5.4.0-1158.168~18.04.1
  22. Upgrade

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

    Fixed in 5.4.0-1143.156~18.04.1
  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 4.15.0-2111.117
  25. Upgrade

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

    Fixed in 4.15.0-1148.160
  26. Upgrade

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

    Fixed in 4.15.0-2094.100
  27. Upgrade

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

    Fixed in 5.4.0-231.251
  28. Upgrade

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

    Fixed in 5.4.0-1160.170
  29. Upgrade

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

    Fixed in 5.15.0-1109.116~20.04.1
  30. Upgrade

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

    Fixed in 5.4.0-1164.170
  31. Upgrade

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

    Fixed in 5.15.0-1114.123~20.04.1
  32. Upgrade

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

    Fixed in 5.4.0-1119.126
  33. Upgrade

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

    Fixed in 5.4.0-1163.172
  34. Upgrade

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

    Fixed in 5.15.0-1109.118~20.04.1
  35. Upgrade

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

    Fixed in 5.15.0-181.191~20.04.1
  36. Upgrade

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

    Fixed in 5.4.0-1107.112
  37. Upgrade

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

    Fixed in 5.15.0-1103.106~20.04.1
  38. Upgrade

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

    Fixed in 5.15.0-1104.110~20.04.1
  39. Upgrade

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

    Fixed in 5.4.0-1064.67
  40. Upgrade

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

    Fixed in 5.4.0-1147.156
  41. Upgrade

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

    Fixed in 5.15.0-181.191~20.04.1
  42. Upgrade

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

    Fixed in 5.15.0-1061.61~20.04.1
  43. Upgrade

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

    Fixed in 5.4.0-1158.168
  44. Upgrade

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

    Fixed in 5.15.0-1106.112~20.04.1
  45. Upgrade

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

    Fixed in 5.4.0-1143.156
  46. Upgrade

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

    Fixed in 5.15.0-1103.107~20.04.1
  47. Upgrade

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

    Fixed in 5.4.0-1078.82
  48. Upgrade

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

    Fixed in 5.4.0-1160.170+fips1
  49. Upgrade

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

    Fixed in 5.4.0-1164.170+fips1
  50. Upgrade

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

    Fixed in 5.4.0-1134.144
  51. Upgrade

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

    Fixed in 5.4.0-1163.172+fips1
  52. Upgrade

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

    Fixed in 5.15.0-181.191
  53. Upgrade

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

    Fixed in 5.15.0-1109.116
  54. Upgrade

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

    Fixed in 6.8.0-1057.60~22.04.1
  55. Upgrade

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

    Fixed in 5.15.0-1114.123
  56. Upgrade

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

    Fixed in 6.8.0-1059.65~22.04.1
  57. Upgrade

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

    Fixed in 5.15.0-1114.123
  58. 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
  59. Upgrade

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

    Fixed in 5.15.0-1109.118
  60. Upgrade

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

    Fixed in 6.8.0-1060.63~22.04.1
  61. Upgrade

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

    Fixed in 5.15.0-1105.111
  62. Upgrade

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

    Fixed in 5.15.0-1092.100
  63. Upgrade

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

    Fixed in 6.8.0-124.124~22.04.1
  64. Upgrade

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

    Fixed in 5.15.0-1103.106
  65. Upgrade

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

    Fixed in 6.8.0-1057.58~22.04.1
  66. Upgrade

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

    Fixed in 5.15.0-1104.110
  67. Upgrade

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

    Fixed in 5.15.0-1101.106
  68. Upgrade

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

    Fixed in 5.15.0-181.191
  69. 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
  70. Upgrade

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

    Fixed in 5.15.0-1104.105
  71. Upgrade

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

    Fixed in 6.8.0-1055.58~22.04.1
  72. Upgrade

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

    Fixed in 5.15.0-1061.61
  73. Upgrade

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

    Fixed in 5.15.0-1050.50
  74. Upgrade

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

    Fixed in 5.15.0-1106.112
  75. Upgrade

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

    Fixed in 6.8.0-1054.55~22.04.1
  76. Upgrade

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

    Fixed in 5.15.0-1103.106
  77. Upgrade

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

    Fixed in 6.8.0-124.124~22.04.1
  78. Upgrade

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

    Fixed in 5.15.0-1074.78
  79. Upgrade

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

    Fixed in 5.15.0-1093.95
  80. Upgrade

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

    Fixed in 5.15.0-1101.103
  81. Upgrade

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

    Fixed in 5.15.0-1108.117
  82. Upgrade

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

    Fixed in 6.8.1-1052.53~22.04.1
  83. Upgrade

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

    Fixed in 5.15.0-1109.116+fips1
  84. Upgrade

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

    Fixed in 5.15.0-1114.123+fips1
  85. Upgrade

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

    Fixed in 5.15.0-181.191+fips1
  86. Upgrade

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

    Fixed in 5.15.0-1109.118+fips1
  87. Upgrade

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

    Fixed in 6.8.0-124.124
  88. Upgrade

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

    Fixed in 6.8.0-1057.60
  89. Upgrade

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

    Fixed in 6.17.0-1017.17~24.04.1
  90. Upgrade

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

    Fixed in 6.8.0-1058.64
  91. Upgrade

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

    Fixed in 6.17.0-1017.17~24.04.1
  92. Upgrade

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

    Fixed in 6.8.0-1058.65
  93. Upgrade

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

    Fixed in 6.8.0-1039.42
  94. Upgrade

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

    Fixed in 6.8.0-1060.63
  95. Upgrade

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

    Fixed in 6.17.0-1018.19~24.04.1
  96. Upgrade

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

    Fixed in 6.8.0-1055.61
  97. Upgrade

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

    Fixed in 6.8.0-1042.45
  98. Upgrade

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

    Fixed in 6.17.0-35.35~24.04.1
  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 6.8.0-1057.58
  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 6.8.0-1055.58
  103. Upgrade

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

    Fixed in 6.17.0-1021.21
  104. Upgrade

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

    Fixed in 6.8.0-1055.58.1
  105. Upgrade

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

    Fixed in 6.8.0-1026.26
  106. Upgrade

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

    Fixed in 6.17.0-1024.24
  107. Upgrade

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

    Fixed in 6.8.0-1054.55
  108. Upgrade

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

    Fixed in 6.17.0-1016.16~24.04.1
  109. Upgrade

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

    Fixed in 6.8.0-1057.61
  110. Upgrade

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

    Fixed in 6.17.0-35.35.1~24.04.1
  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 6.8.0-1023.27
  113. Upgrade

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

    Fixed in 6.8.0-2046.47
  114. Upgrade

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

    Fixed in 6.8.1-1052.53
  115. Upgrade

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

    Fixed in 6.17.0-1014.16~24.04.1
  116. Upgrade

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

    Fixed in 6.8.0-1057.60+fips1
  117. Upgrade

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

    Fixed in 6.8.0-1059.65+fips1
  118. Upgrade

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

    Fixed in 6.8.0-124.124+fips1
  119. Upgrade

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

    Fixed in 6.8.0-1060.63+fips1
  120. Upgrade

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

    Fixed in 6.17.0-35.35
  121. Upgrade

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

    Fixed in 6.17.0-1017.17
  122. Upgrade

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

    Fixed in 6.17.0-1017.17
  123. Upgrade

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

    Fixed in 6.17.0-1018.19
  124. Upgrade

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

    Fixed in 6.17.0-1016.16
  125. Upgrade

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

    Fixed in 6.17.0-1018.18
  126. Upgrade

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

    Fixed in 6.17.0-1014.16
  127. Upgrade

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

    Fixed in 6.17.0-35.35.1
  128. Upgrade

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

    Fixed in 7.0.0-22.22
  129. Upgrade

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

    Fixed in 7.0.0-1006.6
  130. Upgrade

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

    Fixed in 7.0.0-1007.7
  131. Upgrade

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

    Fixed in 7.0.0-1006.6
  132. Upgrade

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

    Fixed in 7.0.0-1005.5
  133. Upgrade

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

    Fixed in 7.0.0-1007.7
  134. Upgrade

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

    Fixed in 7.0.0-1009.9
  135. Upgrade

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

    Fixed in 7.0.0-1008.8
  136. Upgrade

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

    Fixed in 7.0.0-1005.5
  137. Upgrade

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

    Fixed in 7.0.0-1011.11
  138. Upgrade

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

    Fixed in 7.0.0-22.22.1
  139. Upgrade

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

    Fixed in 7.0.0-22.22.1
  140. Upgrade

    Upgrade android/:linux_kernel: to a version that resolves this vulnerability.

    Fixed in :2026-11-05
  141. Upgrade

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

    Fixed in 6.1.170-3
  142. Upgrade

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

    Fixed in 6.12.86-1
  143. Upgrade

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

    Fixed in 7.0.4-1
  144. 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 7.3.4-1
  145. Configuration

    Disable the vulnerable kernel modules esp4, esp6, and rxrpc until upstream patches are fully merged and deployed.

    Linux kernel modules esp4, esp6, and rxrpc = disabled

Event History

May 7, 2026
Data Sourced
via Red Hat·04:02 PM
DescriptionSeverityAffected Software
May 8, 2026
CVE Published
via MITRE·07:21 AM
Data Sourced
via MITRE·07:21 AM
DescriptionSeverity
Data Sourced
via OSV·07:21 AM
DescriptionSeverityAffected Software
News Published
via BleepingComputer·07:45 AM
Data Sourced
via NVD·08:16 AM
RemedyDescriptionSeverityWeaknessAffected Software
Exploit Published
via GitHub·05:07 PM
May 9, 2026
Data Sourced
via Microsoft·08:01 AM
DescriptionSeverityWeaknessAffected Software
May 11, 2026
News Published
via Dark Reading·03:05 PM
News Published
via ZDNet·03:13 PM
May 14, 2026
News Published
via BleepingComputer·07:30 AM
News Published
via BleepingComputer·07:34 AM
May 29, 2026
Exploit Published
via ExploitDB·12:00 AM
Jun 3, 2026
Data Sourced
12:00 AM
SeverityWeakness
Jul 7, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Nov 1, 2026
Advisory Published
via OSV·12:00 AM
Nov 2, 2026
Data Sourced
via Android·12:00 AM
SeverityWeaknessAffected Software
Nov 12, 2026
News Published
via BleepingComputer·09:38 AM

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-2026-43284?

CVE-2026-43284 is classified as a medium severity vulnerability.

2

How do I fix CVE-2026-43284?

To fix CVE-2026-43284, upgrade your Linux kernel to the latest stable version that addresses this vulnerability.

3

What systems are affected by CVE-2026-43284?

CVE-2026-43284 affects the Linux kernel when using shared skb fragments.

4

What type of vulnerability is CVE-2026-43284?

CVE-2026-43284 is a memory handling vulnerability related to in-place decryption on shared skb fragments.

5

When was CVE-2026-43284 published?

CVE-2026-43284 was published in the year 2026.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203