High 7.8Published Jun 24, 2026

CVE-2026-53117s390/cio: use generic driver_override infrastructure

Updated under an hour ago (Oct 27, 2026, 7:40 AM ET)

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Exploited in the last 30 days

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]

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Jun 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from ebc3d179150347f3b6d97d8f249378bb2218f95e before c4295487124f461405e1ef64dfa8c4ab0cb7ebcf; from ebc3d179150347f3b6d97d8f249378bb2218f95e before 106d594711e97762788046c5bbb94f580abc4bf4; from ebc3d179150347f3b6d97d8f249378bb2218f95e before 2081957d8c323ffb58a10bc64837717ac5a042a1; from ebc3d179150347f3b6d97d8f249378bb2218f95e before b660ba045b2b22cf3b4be72773de00cb48f47be5; from ebc3d179150347f3b6d97d8f249378bb2218f95e before ac4d8bb6e2e13e8684a76ea48d13ebaaaf5c24c4	CNA record
linux linux_kernel linux:linux_kernel	from 5.3 before 6.6.141; from 6.7 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10	NVD

References

References

https://git.kernel.org/stable/c/c4295487124f461405e1ef64dfa8c4ab0cb7ebcf	patch
https://git.kernel.org/stable/c/106d594711e97762788046c5bbb94f580abc4bf4	patch
https://git.kernel.org/stable/c/2081957d8c323ffb58a10bc64837717ac5a042a1	patch
https://git.kernel.org/stable/c/b660ba045b2b22cf3b4be72773de00cb48f47be5	patch
https://git.kernel.org/stable/c/ac4d8bb6e2e13e8684a76ea48d13ebaaaf5c24c4	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.