Vulnerability · Published May 28, 2026 · Assigned by Linux

CVE-2026-46150fanotify: fix false positive on permission events

High 7.1

In plain English

A high-severity incorrect authorization 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)7.1High
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: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping over detached marks that are not in the current group.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:10kernel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-debug6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-debug5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-debug-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-debug-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-debug-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-debug-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-debug-devel-matched6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-debug-devel-matched5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-debug-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-debug-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-debug-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-debug-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-debug-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-debug-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-devel-matched6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-devel-matched5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-64k-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-64k-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-abi-stablelists6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-abi-stablelists4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-abi-stablelists5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-core4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-cross-headers6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-cross-headers4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-cross-headers5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-debug6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-debug4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-debug5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-debug-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-debug-core4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-debug-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-debug-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-debug-devel4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-debug-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-debug-devel-matched6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-debug-devel-matched5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-debug-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-debug-modules4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-debug-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-debug-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-debug-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-debug-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-debug-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-debug-uki-virt6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-debug-uki-virt5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-devel4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-devel-matched6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-devel-matched5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-doc6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-doc4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-doc5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-headers6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-headers4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-headers5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-modules4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-modules-extra4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-modules-extra-matched6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:10kernel-rt6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-debug6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-debug5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-debug-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-debug-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-debug-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-debug-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-debug-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-debug-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-debug-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-debug-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-debug-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-debug-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-64k-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-64k-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-core4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-debug6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-debug4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-debug5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-debug-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-debug-core4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-debug-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-debug-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-debug-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-debug-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-debug-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-debug-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-debug-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-debug-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-devel4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-modules4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-rt-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-rt-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.150.1.rt7.491.el8_10ALSA-2026:49213
AlmaLinux:9kernel-rt-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-tools6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-tools4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-tools5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-tools-libs6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-tools-libs4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-tools-libs5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-tools-libs-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-tools-libs-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-uki-virt6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-uki-virt5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-uki-virt-addons6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-uki-virt-addons5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-zfcpdump6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-zfcpdump4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-zfcpdump5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-zfcpdump-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-zfcpdump-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-zfcpdump-devel6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-zfcpdump-devel5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-zfcpdump-devel-matched6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-zfcpdump-modules6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-zfcpdump-modules5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-zfcpdump-modules-core6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9kernel-zfcpdump-modules-core5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10kernel-zfcpdump-modules-extra6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10libperf6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9libperf5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10perf6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8perf4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9perf5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10python3-perf6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:8python3-perf4.18.0-553.150.1.el8_10ALSA-2026:49214
AlmaLinux:9python3-perf5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10rtla6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9rtla5.14.0-687.29.1.el9_8ALSA-2026:43307
AlmaLinux:10rv6.12.0-211.37.1.el10_2ALSA-2026:42919
AlmaLinux:9rv5.14.0-687.29.1.el9_8ALSA-2026:43307
Debian:12linux6.1.176-1DEBIAN-CVE-2026-46150
Debian:13linux6.12.88-1DEBIAN-CVE-2026-46150
Debian:14linux7.0.7-1DEBIAN-CVE-2026-46150
Rocky Linux:10kernel0:6.12.0-211.37.1.el10_2RLSA-2026:42919
Rocky Linux:8kernel0:4.18.0-553.150.1.el8_10RLSA-2026:49214
Rocky Linux:9kernel0:5.14.0-687.29.1.el9_8RLSA-2026:43307
Rocky Linux:8kernel-rt0:4.18.0-553.150.1.rt7.491.el8_10RLSA-2026:49213
Ubuntu:22.04:LTSlinux5.15.0-186.196UBUNTU-CVE-2026-46150
Ubuntu:24.04:LTSlinux6.8.0-136.136UBUNTU-CVE-2026-46150
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-46150
Ubuntu:26.04:LTSlinux7.0.0-28.28UBUNTU-CVE-2026-46150
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-46150
Ubuntu:22.04:LTSlinux-aws5.15.0-1112.119UBUNTU-CVE-2026-46150
Ubuntu:24.04:LTSlinux-aws6.8.0-1061.64UBUNTU-CVE-2026-46150
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-46150
Ubuntu:26.04:LTSlinux-aws7.0.0-1009.9UBUNTU-CVE-2026-46150

Affected products (as reported)

VendorProductVersions
Linux Linux abc77577a669f424c5d0c185b9994f2621c52aa4 – before a24765332e129c1916d5a6615418b75599b8fcdcabc77577a669f424c5d0c185b9994f2621c52aa4 – before 4a7611ad653785fcdea5ff5f4441e2b7d05b7f11abc77577a669f424c5d0c185b9994f2621c52aa4 – before 04bb66be92f48ed13c3faf1139d892df228789bcabc77577a669f424c5d0c185b9994f2621c52aa4 – before 895ebbedf88318607c24acc0f591c74b165e1d0aabc77577a669f424c5d0c185b9994f2621c52aa4 – before f130790f1acc8399f32652846c875a251efd040fabc77577a669f424c5d0c185b9994f2621c52aa4 – before 7baa02b0ae9d17ec5f08836d8ea88ce1927d0678abc77577a669f424c5d0c185b9994f2621c52aa4 – before b7b24b28c8cd55844cab908f4f39dded638d5538abc77577a669f424c5d0c185b9994f2621c52aa4 – before 7746e3bd4cc19b5092e00d32d676e329bfcb6900
Linux Linux 4.12

Weakness: CWE-863 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References