Vulnerability · Published Jun 24, 2026 · Assigned by Linux

CVE-2026-52972crypto: af_alg - Cap AEAD AD length to 0x80000000

High 7.0

In plain English

A high-severity integer overflow 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 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.0High
Exploit odds (30 days)0.1%top 96.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Cap AEAD AD length to 0x80000000 In order to prevent arithmetic overflows when checking the TX buffer size, cap the associated data length to 0x80000000.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:10kernel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-debug6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-debug5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-debug-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-debug-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-debug-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-debug-devel-matched6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-debug-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-debug-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-debug-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-devel-matched6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-64k-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-abi-stablelists6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-abi-stablelists4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-abi-stablelists5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-core4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-cross-headers6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-cross-headers4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-cross-headers5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-debug6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-debug4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-debug5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-debug-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-debug-core4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-debug-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-debug-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-debug-devel4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-debug-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-debug-devel-matched6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-debug-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-debug-modules4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-debug-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-debug-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-debug-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-debug-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-debug-uki-virt6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-devel4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-devel-matched6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-devel-matched5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-doc6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-doc4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-doc5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-headers6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-headers4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-headers5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-modules4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-modules-extra4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-modules-extra-matched6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:10kernel-rt6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-debug6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-debug-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-debug-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-debug-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-debug-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-debug-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-64k-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-core4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-debug6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-debug4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-debug5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-debug-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-debug-core4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-debug-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-debug-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-debug-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-debug-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-debug-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-devel4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-modules4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-rt-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-rt-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.171.1.rt7.512.el8_10ALSA-2026:75746
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-tools6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-tools4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-tools5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-tools-libs6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-tools-libs4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-tools-libs5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-tools-libs-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-uki-virt6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-uki-virt5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-uki-virt-addons6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-zfcpdump6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-zfcpdump4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-zfcpdump5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-zfcpdump-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-zfcpdump-devel6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-zfcpdump-devel-matched6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-zfcpdump-modules6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-zfcpdump-modules-core6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10kernel-zfcpdump-modules-extra6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10libperf6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9libperf5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10perf6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8perf4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9perf5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10python3-perf6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:8python3-perf4.18.0-553.171.1.el8_10ALSA-2026:75747
AlmaLinux:9python3-perf5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10rtla6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9rtla5.14.0-687.53.1.el9_8ALSA-2026:72623
AlmaLinux:10rv6.12.0-211.63.1.el10_2ALSA-2026:76738
AlmaLinux:9rv5.14.0-687.53.1.el9_8ALSA-2026:72623
Debian:12linux6.1.176-1DEBIAN-CVE-2026-52972
Debian:13linux6.12.94-1DEBIAN-CVE-2026-52972
Debian:14linux7.0.10-1DEBIAN-CVE-2026-52972
Rocky Linux:8kernel0:4.18.0-553.171.1.el8_10RLSA-2026:75747
Rocky Linux:9kernel0:5.14.0-687.53.1.el9_8RLSA-2026:72623
Rocky Linux:8kernel-rt0:4.18.0-553.171.1.rt7.512.el8_10RLSA-2026:75746
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-52972
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-52972
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-52972
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-52972
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-52972
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-52972
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-52972
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-52972
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-52972
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-52972

Affected products (as reported)

VendorProductVersions
Linux Linux 400c40cf78da00c16e561a3a253ca272455c42ef – before f8a5203596797f394ff3f9aa4005597a92249802400c40cf78da00c16e561a3a253ca272455c42ef – before a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d400c40cf78da00c16e561a3a253ca272455c42ef – before a4fe4eb580bbc7439f649a496d4cf38415a4021c400c40cf78da00c16e561a3a253ca272455c42ef – before e4c4a5074532eaaa14951994a3aad0d479aa7431400c40cf78da00c16e561a3a253ca272455c42ef – before 265ac26d1c5e17b34d497cbda1f754a1ec8552bc400c40cf78da00c16e561a3a253ca272455c42ef – before a1c5672faf8e93e38c2deac3979cc767ca5cf918400c40cf78da00c16e561a3a253ca272455c42ef – before 97948906dc8e0ea84775e03e35b60a2063c70193400c40cf78da00c16e561a3a253ca272455c42ef – before 0b3a57d218618cb1cc78ddc9ba02c07de84b46f4
Linux Linux 4.1

Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References