Vulnerability · Published May 28, 2026 · Assigned by Linux

CVE-2026-46145RDMA/mana: Validate rx_hash_key_len

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 4% 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 96.0% 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: RDMA/mana: Validate rx_hash_key_len Sashiko points out that rx_hash_key_len comes from a uAPI structure and is blindly passed to memcpy, allowing the userspace to trash kernel memory. Bounds check it so the memcpy cannot overflow.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:10kernel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-debug6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-debug5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-debug-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-debug-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-debug-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-debug-devel-matched6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-debug-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-debug-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-debug-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-devel-matched6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-64k-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-abi-stablelists6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-abi-stablelists4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-abi-stablelists5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-core4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-cross-headers6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-cross-headers4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-cross-headers5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-debug6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-debug4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-debug5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-debug-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-debug-core4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-debug-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-debug-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-debug-devel4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-debug-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-debug-devel-matched6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-debug-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-debug-modules4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-debug-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-debug-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-debug-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-debug-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-debug-uki-virt6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-devel4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-devel-matched6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-devel-matched5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-doc6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-doc4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-doc5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-headers6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-headers4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-headers5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-modules4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-modules-extra4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-modules-extra-matched6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:10kernel-rt6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-debug6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-debug-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-debug-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-debug-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-debug-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-debug-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-64k-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-core4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-debug6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-debug4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-debug5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-debug-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-debug-core4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-debug-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-debug-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-debug-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-debug-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-debug-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-devel4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-modules4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-rt-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-rt-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.136.1.rt7.477.el8_10ALSA-2026:27354
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-tools6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-tools4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-tools5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-tools-libs6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-tools-libs4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-tools-libs5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-tools-libs-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-uki-virt6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-uki-virt5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-uki-virt-addons6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-zfcpdump6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-zfcpdump4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-zfcpdump5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-zfcpdump-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-zfcpdump-devel6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-zfcpdump-devel-matched6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-zfcpdump-modules6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-zfcpdump-modules-core6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10kernel-zfcpdump-modules-extra6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10libperf6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9libperf5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10perf6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8perf4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9perf5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10python3-perf6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:8python3-perf4.18.0-553.136.1.el8_10ALSA-2026:27353
AlmaLinux:9python3-perf5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10rtla6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9rtla5.14.0-687.17.1.el9_8ALSA-2026:27789
AlmaLinux:10rv6.12.0-211.28.1.el10_2ALSA-2026:30129
AlmaLinux:9rv5.14.0-687.17.1.el9_8ALSA-2026:27789
Debian:13linux6.12.88-1DEBIAN-CVE-2026-46145
Debian:14linux7.0.7-1DEBIAN-CVE-2026-46145
Rocky Linux:10kernel0:6.12.0-211.28.1.el10_2RLSA-2026:30129
Rocky Linux:8kernel0:4.18.0-553.136.1.el8_10RLSA-2026:27353
Rocky Linux:9kernel0:5.14.0-687.17.1.el9_8RLSA-2026:27789
Rocky Linux:8kernel-rt0:4.18.0-553.136.1.rt7.477.el8_10RLSA-2026:27354
Ubuntu:24.04:LTSlinux6.8.0-136.136UBUNTU-CVE-2026-46145
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-46145
Ubuntu:26.04:LTSlinux7.0.0-28.28UBUNTU-CVE-2026-46145
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-46145
Ubuntu:24.04:LTSlinux-aws6.8.0-1061.64UBUNTU-CVE-2026-46145
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-46145
Ubuntu:26.04:LTSlinux-aws7.0.0-1009.9UBUNTU-CVE-2026-46145
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-46145
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-46145
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-46145

Affected products (as reported)

VendorProductVersions
Linux Linux 0266a177631d4c6b963b5b12dd986a8c5abdbf06 – before 7d7c9f0fcd19c4d2f0164347c58d49cafa961b720266a177631d4c6b963b5b12dd986a8c5abdbf06 – before 11c1431d641e0e4e0529e96957995820600c72870266a177631d4c6b963b5b12dd986a8c5abdbf06 – before 012796f9541fcd0c1fa8ae4da7eb4d83931ef8380266a177631d4c6b963b5b12dd986a8c5abdbf06 – before 7d94f155f354b961c598f71bafa804dceded513f0266a177631d4c6b963b5b12dd986a8c5abdbf06 – before 6dd2d4ad9c8429523b1c220c5132bd551c006425
Linux Linux 6.2

Weakness: CWE-787, CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References