CVE-2026-53117 json
s390/cio: use generic driver_override infrastructure
published 2026-06-24 4 mo ago modified 2026-11-06 2 d ago also EUVD-2026-38985
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 7%
- public exploits
- 0
- none known
Summary
In the Linux kernel, the following vulnerability has been resolved:
s390/cio: use generic driver_override infrastructure
When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF.
Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally.
Note that calling match() from __driver_attach() without the device lock held is intentional. [1]
Patch / fix
- Linux Linux 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1
- linux Debian 13 6.12.94-1
- linux Debian 14 7.0.10-1
debian advisories DEBIAN-CVE-2026-53117
- linux Ubuntu 24.04 LTS 6.8.0-136.136
- linux Ubuntu 26.04 LTS 7.0.0-28.28
- linux-aws Ubuntu 24.04 LTS 6.8.0-1061.64
- linux-aws Ubuntu 26.04 LTS 7.0.0-1009.9
- linux-gcp Ubuntu 24.04 LTS 6.8.0-1064.72
- linux-gcp Ubuntu 26.04 LTS 7.0.0-1008.8
- linux-gke Ubuntu 24.04 LTS 6.8.0-1059.67
- linux-gke Ubuntu 26.04 LTS 7.0.0-1003.4
ubuntu advisories UBUNTU-CVE-2026-53117
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/c4295487124f461405e1ef64dfa8c4ab0cb7ebcf commit
- git.kernel.org/stable/c/106d594711e97762788046c5bbb94f580abc4bf4 commit
- git.kernel.org/stable/c/2081957d8c323ffb58a10bc64837717ac5a042a1 commit
- git.kernel.org/stable/c/b660ba045b2b22cf3b4be72773de00cb48f47be5 commit
- git.kernel.org/stable/c/ac4d8bb6e2e13e8684a76ea48d13ebaaaf5c24c4 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-2026-53117 updated cvss 5.5
kernel: s390/cio: use generic driver_override infrastructure
-
Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernelaffected: workaround, no fix available “Fix deferred”
-
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 morenot affected: vulnerable code not present
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
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 d ago
Exploit prediction
0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Linux Linux
Classification
- Weakness
-
- CWE-416 Use After Free
- Technology feeds
References
-
git.kernel.org
/stable/c/c4295487124f461405e1ef64dfa8c4ab0cb7ebcf
patch
-
git.kernel.org
/stable/c/106d594711e97762788046c5bbb94f580abc4bf4
patch
-
git.kernel.org
/stable/c/2081957d8c323ffb58a10bc64837717ac5a042a1
patch
-
git.kernel.org
/stable/c/b660ba045b2b22cf3b4be72773de00cb48f47be5
patch
-
git.kernel.org
/stable/c/ac4d8bb6e2e13e8684a76ea48d13ebaaaf5c24c4
patch
Sources
- CVE List CVE-2026-53117
- NVD CVE-2026-53117
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.