CVE-2026-90390

linux: In the Linux kernel, the following vulnerability has been resolved: md/bitmap: resume array on backlog_store() error...

CVE-2026-90390 is fixed in 74 products on 1 platform, first by DEBIAN-CVE-2026-90390, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
2.3
IMPORTANT
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0020
9th percentile

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: resume array on backlog_store() error path backlog_store() suspends the array before checking whether a write-mostly device exists. If no such device exists, the error path only unlocks reconfig_mutex and leaves the array suspended, blocking subsequent I/O. Use mddev_unlock_and_resume() to release both states.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.12 · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
bpftool6.12-debuginfo · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
bpftool6.18 · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel-livepatch-6.12.110-135.201 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel-livepatch-6.18.54-121.166 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel-uek · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-devel · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-devel · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-deprecated · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-deprecated · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-desktop · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-desktop · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-extra · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-extra · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-extra-netfilter · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-extra-netfilter · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-usb · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-usb · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-wireless · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-debug-modules-wireless · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-devel · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-devel · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-doc · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-doc · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-deprecated · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-deprecated · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-desktop · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-desktop · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-extra · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-extra · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-extra-netfilter · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-extra-netfilter · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-usb · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-usb · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-wireless · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-modules-wireless · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-tools · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek-tools · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-devel · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-devel · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-core · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-core · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-deprecated · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-deprecated · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-desktop · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-desktop · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-extra · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-extra · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-extra-netfilter · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-extra-netfilter · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-usb · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-usb · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-wireless · ol 10 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel-uek64k-modules-wireless · ol 9 0:6.12.0-207.111.5.1.el9uek ELSA-2026-500374 Oct 7, 2026
kernel6.12 · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-debuginfo · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-debuginfo-common-aarch64 · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-debuginfo-common-x86_64 · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-devel · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-headers · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-modules-extra · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-modules-extra-common · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-tools · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-tools-debuginfo · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.12-tools-devel · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
kernel6.18 · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-devel · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-headers · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-tools · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
linux · Debian 13.5 (trixie) 6.12.111-1 DEBIAN-CVE-2026-90390 Sep 23, 2026
linux · Debian 14 7.2.6-1 DEBIAN-CVE-2026-90390 Sep 23, 2026
linux-6.12 · Debian 12.15 (bookworm) 6.12.111-1~deb12u1 DEBIAN-CVE-2026-90390 Sep 23, 2026
microvm-kernel6.18 · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
perf6.12 · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
perf6.12-debuginfo · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
perf6.18 · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
python3-perf6.12 · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
python3-perf6.12-debuginfo · amzn 2023 1:6.12.110-135.201.amzn2023 ALAS2023-2026-3196 Nov 7, 2026
python3-perf6.18 · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.54-121.166.amzn2023 ALAS2023-2026-3192 Nov 7, 2026

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