CVE-2026-46166

EUVD-2026-32793
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 10%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.12 ≤
𝑥
< 6.12.88
linuxlinux_kernel
6.13 ≤
𝑥
< 6.18.30
linuxlinux_kernel
6.19 ≤
𝑥
< 7.0.7
linuxlinux_kernel
7.1:rc1
linuxlinux_kernel
7.1:rc2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.176-1
fixed
bookworm (security)
6.1.176-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.259-1
fixed
forky
7.1.3-1
fixed
sid
7.1.3-1
fixed
trixie
6.12.94-1
fixed
trixie (security)
6.12.95-1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
kernel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-debug
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-debug-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-debug-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-debug-devel-matched
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-debug-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-debug-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-debug-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-devel-matched
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-64k-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-abi-stablelists
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-debug
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-debug-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-debug-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-debug-devel-matched
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-debug-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-debug-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-debug-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-debug-uki-virt
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-devel-matched
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-doc
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-debug
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-debug-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-debug-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-debug-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-debug-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-debug-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-64k-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-debug
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-debug-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-debug-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-debug-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-debug-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-debug-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-rt-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-tools
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-tools-libs
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-tools-libs-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-uki-virt
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-uki-virt-addons
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-zfcpdump
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-zfcpdump-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-zfcpdump-devel
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-zfcpdump-devel-matched
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-zfcpdump-modules
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-zfcpdump-modules-core
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
kernel-zfcpdump-modules-extra
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
libperf
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
perf
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
python3-perf
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
rtla
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
rv
RHEL 9
0:5.14.0-687.17.1.el9_8
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/120149fb3ebcf674832ca3cafd32bedcdb686dde
https://git.kernel.org/stable/c/7577a4b8a10fab45a6ee2045ea038a5adadbb585
https://git.kernel.org/stable/c/887ece6c23b49d02a6678e7a8d5ad213d75883ce
https://git.kernel.org/stable/c/ac8eb3e18f41e2cc8492cc1d358bcb786c850270
https://access.redhat.com/errata/RHSA-2026:27288
https://access.redhat.com/errata/RHSA-2026:27708
https://access.redhat.com/errata/RHSA-2026:27789
https://access.redhat.com/errata/RHSA-2026:33215
https://access.redhat.com/security/cve/CVE-2026-46166
https://bugzilla.redhat.com/show_bug.cgi?id=2482645
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46166.json