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Vulnerability · Published May 6, 2026 · Assigned by Linux

CVE-2026-43078crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl

High 7.8

In plain English

A high-severity out-of-bounds write in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 97.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl When page reassignment was added to af_alg_pull_tsgl the original loop wasn't updated so it may try to reassign one more page than necessary. Add the check to the reassignment so that this does not happen. Also update the comment which still refers to the obsolete offset argument.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.170-1DEBIAN-CVE-2026-43078
Debian:13linux6.12.85-1DEBIAN-CVE-2026-43078
Debian:14linux6.19.14-1DEBIAN-CVE-2026-43078
Ubuntu:22.04:LTSlinux5.15.0-179.189USN-8279-1
Ubuntu:22.04:LTSlinux5.15.0-179.189UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux6.8.0-117.117UBUNTU-CVE-2026-43078
Ubuntu:25.10linux6.17.0-29.29UBUNTU-CVE-2026-43078
Ubuntu:25.10linux6.17.0-29.29USN-8277-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-aws5.15.0-1108.115USN-8279-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1108.115UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-aws6.8.0-1055.58UBUNTU-CVE-2026-43078
Ubuntu:25.10linux-aws6.17.0-1015.15UBUNTU-CVE-2026-43078
Ubuntu:25.10linux-aws6.17.0-1015.15USN-8277-1
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1017.17~24.04.1USN-8374-1
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1017.17~24.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1057.60~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-azure5.15.0-1114.123UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-azure5.15.0-1114.123USN-8426-2
Ubuntu:24.04:LTSlinux-azure6.8.0-1056.62UBUNTU-CVE-2026-43078
Ubuntu:25.10linux-azure6.17.0-1015.15UBUNTU-CVE-2026-43078
Ubuntu:25.10linux-azure6.17.0-1015.15USN-8310-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1015.15~24.04.1UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1015.15~24.04.1USN-8310-1
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1114.123UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2026-43078
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-gcp5.15.0-1108.117USN-8279-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1108.117UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-gcp6.8.0-1058.61UBUNTU-CVE-2026-43078
Ubuntu:25.10linux-gcp6.17.0-1018.19USN-8374-1
Ubuntu:25.10linux-gcp6.17.0-1018.19UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1018.19~24.04.1UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1018.19~24.04.1USN-8374-1
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1060.63~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-gke5.15.0-1104.110UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-gke5.15.0-1104.110USN-8279-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1054.60UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1091.99UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1091.99USN-8279-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1041.44UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-29.29~24.04.1UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-29.29~24.04.1USN-8277-1
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-124.124~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-ibm5.15.0-1102.105USN-8279-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1102.105UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-ibm6.8.0-1055.56UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1055.56~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1103.109UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1103.109USN-8279-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1100.105USN-8279-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1100.105UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-179.189UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-179.189USN-8351-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-117.117.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-117.117.1~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1103.104UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1103.104USN-8279-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1054.57UBUNTU-CVE-2026-43078
Ubuntu:26.04:LTSlinux-nvidia7.0.0-1006.6UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1026.26UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1026.26USN-8508-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1054.57~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1054.57.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1060.60UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1060.60USN-8279-1
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1025.25USN-8350-1
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1025.25UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1049.49UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1049.49USN-8279-3
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1023.23USN-8277-1
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1023.23UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-oracle5.15.0-1105.111USN-8279-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1105.111UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-oracle6.8.0-1054.55UBUNTU-CVE-2026-43078
Ubuntu:25.10linux-oracle6.17.0-1014.14USN-8277-1
Ubuntu:25.10linux-oracle6.17.0-1014.14UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1014.14~24.04.1UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1014.14~24.04.1USN-8277-2
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1054.55~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-raspi5.15.0-1102.105USN-8279-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1102.105UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-raspi6.8.0-1056.60UBUNTU-CVE-2026-43078
Ubuntu:25.10linux-raspi6.17.0-1017.17USN-8277-1
Ubuntu:25.10linux-raspi6.17.0-1017.17UBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-43078
Ubuntu:25.10linux-realtime6.17.0-1013.15USN-8277-1
Ubuntu:25.10linux-realtime6.17.0-1013.15UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-43078
Ubuntu:25.10linux-riscv6.17.0-29.29.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-riscv-6.176.17.0-29.29.1~24.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-117.117~22.04.1UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-43078
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1032.33UBUNTU-CVE-2026-43078
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1074.78UBUNTU-CVE-2026-43078

Affected products (as reported)

VendorProductVersions
Linux Linux e870456d8e7c8d57c059ea479b5aadbb55ff4c3a – before fa48d3ea9cdbfb28c1fd6756c6c5cd01351aa51ee870456d8e7c8d57c059ea479b5aadbb55ff4c3a – before 2b781d1d4f933990318bcc5c68fb75a717379e42e870456d8e7c8d57c059ea479b5aadbb55ff4c3a – before f7826bc0b39928a4a22f6b815dd9940b22a63503e870456d8e7c8d57c059ea479b5aadbb55ff4c3a – before 710a4ce5d7afd9fe082c75dec282ab4a11c0fe71e870456d8e7c8d57c059ea479b5aadbb55ff4c3a – before c8369a6d62f5abde9cbd4b62c45bf4b996be2468e870456d8e7c8d57c059ea479b5aadbb55ff4c3a – before dea5fcf085f977b6c2de1b2d4ec4767b6c840d1fe870456d8e7c8d57c059ea479b5aadbb55ff4c3a – before 9532501e0f1b200ea80baa0e33e0b06da10bb271e870456d8e7c8d57c059ea479b5aadbb55ff4c3a – before 31d00156e50ecad37f2cb6cbf04aaa9a260505ef
Linux Linux 4.14

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References