CVE-2026-97489 json
bfs: handle set_blocksize failures
published 2026-09-24 45 d ago modified 2026-10-03 36 d ago also EUVD-2026-86087
- cvss
- —
- not scored
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 6%
- public exploits
- 0
- none known
Summary
In the Linux kernel, the following vulnerability has been resolved:
bfs: handle set_blocksize failures
bfs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting will hit the
BUG_ON(offset >= folio_size(folio));
in folio_set_bh on the first __bread_gfp call.
Patch / fix
- Linux Linux 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2
- linux Debian 12 6.1.190-1
- linux Debian 13 6.12.111-1
- linux Debian 14 7.2.6-1
- linux-6.12 Debian 12 6.12.111-1~deb12u1
debian advisories DEBIAN-CVE-2026-97489
- linux Ubuntu 22.04 LTS 5.15.0-202.212
- linux Ubuntu 26.04 LTS 7.0.0-42.42
- linux-aws Ubuntu 22.04 LTS 5.15.0-1119.126
- linux-aws Ubuntu 26.04 LTS 7.0.0-1016.17
- linux-gcp Ubuntu 22.04 LTS 5.15.0-1120.130
- linux-gcp Ubuntu 26.04 LTS 7.0.0-1016.18
- linux-gke Ubuntu 22.04 LTS 5.15.0-1115.121
- linux-ibm Ubuntu 22.04 LTS 5.15.0-1113.117
ubuntu advisories UBUNTU-CVE-2026-97489
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- git.kernel.org/stable/c/965b53ee91cfda3faf8bd0d0ffff5f70c7d1c479 commit
- git.kernel.org/stable/c/0fe260d82555ffebfb627cd23cbb6e880399804c commit
- git.kernel.org/stable/c/c6d069c34d57414c039167967ef826a8516c98f3 commit
- git.kernel.org/stable/c/8a96010d230a8c83181137d88bad4bf71d862628 commit
- git.kernel.org/stable/c/7cc713b29eecc0189a184e82f42d174fddaa9e1e commit
- git.kernel.org/stable/c/ab1d6160d26e6ee8939e994999be9b45e90a42ef commit
- git.kernel.org/stable/c/2430e3380936df0b648af720cae624eef035a2d1 commit
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-97489 updated cvss 5.5
kernel: bfs: handle set_blocksize failures
-
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernel Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9not affected: vulnerable code not present
+1 more productsfewer
Red Hat OpenShift Container Platform 5 openshift/ose-rhel-coreos-9
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).
Affected products
- Linux Linux
Classification
- Technology feeds
References
- git.kernel.org /stable/c/965b53ee91cfda3faf8bd0d0ffff5f70c7d1c479
- git.kernel.org /stable/c/0fe260d82555ffebfb627cd23cbb6e880399804c
- git.kernel.org /stable/c/c6d069c34d57414c039167967ef826a8516c98f3
- git.kernel.org /stable/c/8a96010d230a8c83181137d88bad4bf71d862628
- git.kernel.org /stable/c/7cc713b29eecc0189a184e82f42d174fddaa9e1e
- git.kernel.org /stable/c/ab1d6160d26e6ee8939e994999be9b45e90a42ef
- git.kernel.org /stable/c/2430e3380936df0b648af720cae624eef035a2d1
Sources
- CVE List CVE-2026-97489
- NVD CVE-2026-97489
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.