CVE-2026-89602

linux: In the Linux kernel, the following vulnerability has been resolved: erofs: skip sufficiently large global buffers wh...

CVE-2026-89602 is fixed in 74 products on 1 platform, first by DEBIAN-CVE-2026-89602, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0018
7th percentile

In the Linux kernel, the following vulnerability has been resolved: erofs: skip sufficiently large global buffers when resizing z_erofs_gbuf_nrpages is advanced only after every global buffer has been grown. If a resize fails after some buffers were enlarged, a retry revisits those enlarged buffers. Retrying the same size then returns -ENOMEM because alloc_pages_bulk() has no pages to add and the unchanged return value is treated as a failure. Retrying an intermediate size allocates a temporary pointer array smaller than gbuf->nrpages and copies more existing pointers than the array can hold. Skip buffers that already satisfy the request. Once all remaining buffers have caught up, advancing z_erofs_gbuf_nrpages again describes the guaranteed minimum size across the pool.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.12 · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
bpftool6.12-debuginfo · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
bpftool6.18 · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel-livepatch-6.12.111-136.204 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel-livepatch-6.18.51-120.162 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-3187 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 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-debuginfo · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-debuginfo-common-aarch64 · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-debuginfo-common-x86_64 · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-devel · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-headers · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-modules-extra · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-modules-extra-common · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-tools · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-tools-debuginfo · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.12-tools-devel · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
kernel6.18 · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-devel · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-headers · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-tools · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
linux · Debian 13.5 (trixie) 6.12.111-1 DEBIAN-CVE-2026-89602 Sep 23, 2026
linux · Debian 14 7.2.6-1 DEBIAN-CVE-2026-89602 Sep 23, 2026
linux-6.12 · Debian 12.15 (bookworm) 6.12.111-1~deb12u1 DEBIAN-CVE-2026-89602 Sep 23, 2026
microvm-kernel6.18 · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
perf6.12 · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
perf6.12-debuginfo · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
perf6.18 · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
python3-perf6.12 · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
python3-perf6.12-debuginfo · amzn 2023 1:6.12.111-136.204.amzn2023 ALAS2023-2026-3193 Nov 7, 2026
python3-perf6.18 · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.51-120.162.amzn2023 ALAS2023-2026-3187 Nov 7, 2026

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