High severity8.8NVD Advisory· Published May 28, 2026· Updated Jul 15, 2026
CVE-2026-46166
CVE-2026-46166
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: use safe list iteration in radar detect work
The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to be freed and removed from the list. Guard against this to avoid a slab-use-after-free error.
Affected products
94- osv-coords90 versionspkg:rpm/almalinux/kernel-64k-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-devel-matchedpkg:rpm/almalinux/kernel-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-develpkg:rpm/almalinux/kernel-rt-debug-develpkg:rpm/almalinux/kernel-rt-modules-extrapkg:rpm/almalinux/kernel-zfcpdumppkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/almalinux/kernel-64k-modules-extrapkg:rpm/almalinux/kernel-debug-develpkg:rpm/almalinux/kernel-headerspkg:rpm/almalinux/kernel-64kpkg:rpm/almalinux/kernel-64k-debug-modulespkg:rpm/almalinux/kernel-64k-debug-modules-extrapkg:rpm/almalinux/kernel-debug-corepkg:rpm/almalinux/kernel-develpkg:rpm/almalinux/kernel-rt-64kpkg:rpm/almalinux/kernel-rt-64k-debug-modules-extrapkg:rpm/almalinux/kernel-rt-debug-modulespkg:rpm/almalinux/kernel-toolspkg:rpm/almalinux/kernel-zfcpdump-corepkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:linux/kernelpkg:rpm/almalinux/kernelpkg:rpm/almalinux/kernel-corepkg:rpm/almalinux/kernel-abi-stablelistspkg:rpm/almalinux/kernel-debug-modules-extrapkg:rpm/almalinux/kernel-devel-matchedpkg:rpm/almalinux/kernel-docpkg:rpm/almalinux/kernel-rt-debug-corepkg:rpm/almalinux/python3-perfpkg:rpm/almalinux/kernel-zfcpdump-develpkg:rpm/almalinux/kernel-64k-corepkg:rpm/almalinux/kernel-64k-debugpkg:rpm/almalinux/kernel-64k-debug-corepkg:rpm/almalinux/kernel-64k-debug-develpkg:rpm/almalinux/kernel-64k-debug-modules-corepkg:rpm/almalinux/kernel-64k-develpkg:rpm/almalinux/kernel-modulespkg:rpm/almalinux/kernel-rt-64k-corepkg:rpm/almalinux/kernel-rt-64k-debugpkg:rpm/almalinux/kernel-rt-64k-debug-corepkg:rpm/almalinux/kernel-rt-64k-modules-extrapkg:rpm/almalinux/kernel-rt-corepkg:rpm/almalinux/kernel-rt-debugpkg:rpm/almalinux/kernel-rt-debug-modules-extrapkg:rpm/almalinux/kernel-rt-develpkg:rpm/almalinux/kernel-tools-libspkg:rpm/almalinux/kernel-tools-libs-develpkg:rpm/almalinux/kernel-uki-virtpkg:rpm/almalinux/kernel-uki-virt-addonspkg:rpm/almalinux/kernel-zfcpdump-devel-matchedpkg:rpm/almalinux/kernel-zfcpdump-modulespkg:rpm/almalinux/kernel-zfcpdump-modules-corepkg:rpm/almalinux/kernel-zfcpdump-modules-extrapkg:rpm/almalinux/libperfpkg:rpm/almalinux/perfpkg:rpm/almalinux/rtlapkg:rpm/almalinux/rvpkg:rpm/almalinux/kernel-64k-devel-matchedpkg:rpm/almalinux/kernel-64k-modulespkg:rpm/almalinux/kernel-64k-modules-corepkg:rpm/almalinux/kernel-cross-headerspkg:rpm/almalinux/kernel-debugpkg:rpm/almalinux/kernel-debug-uki-virtpkg:rpm/almalinux/kernel-modules-corepkg:rpm/almalinux/kernel-modules-extrapkg:rpm/almalinux/kernel-modules-extra-matchedpkg:rpm/almalinux/kernel-rtpkg:rpm/almalinux/kernel-rt-64k-debug-develpkg:rpm/almalinux/kernel-rt-64k-debug-modulespkg:rpm/almalinux/kernel-rt-64k-debug-modules-corepkg:rpm/almalinux/kernel-rt-64k-modulespkg:rpm/almalinux/kernel-rt-64k-modules-corepkg:rpm/almalinux/kernel-rt-modulespkg:rpm/almalinux/kernel-rt-modules-corepkg:rpm/almalinux/kernel-debug-modulespkg:rpm/almalinux/kernel-rt-debug-modules-corepkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0
< 6.12.0-211.26.1.el10_2+ 89 more
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
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- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 7.0.11-1.1
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
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- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
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- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
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- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: >= 6.12.0, < 6.12.88
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-211.26.1.el10_2
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1.160000.2.19
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
- (no CPE)range: < 6.12.0-160000.37.1
Patches
Vulnerability mechanics
References
11- git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686ddenvdPatch
- git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585nvdPatch
- git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883cenvdPatch
- git.kernel.org/stable/c/ac8eb3e18f41e2cc8492cc1d358bcb786c850270nvdPatch
- access.redhat.com/errata/RHSA-2026:27288nvd
- access.redhat.com/errata/RHSA-2026:27708nvd
- access.redhat.com/errata/RHSA-2026:27789nvd
- access.redhat.com/errata/RHSA-2026:33215nvd
- access.redhat.com/security/cve/CVE-2026-46166nvd
- bugzilla.redhat.com/show_bug.cginvd
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46166.jsonnvd
News mentions
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