CVE-2026-53117
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/106d594711e97762788046c5bbb94f580abc4bf4Patch
- https://git.kernel.org/stable/c/2081957d8c323ffb58a10bc64837717ac5a042a1Patch
- https://git.kernel.org/stable/c/ac4d8bb6e2e13e8684a76ea48d13ebaaaf5c24c4Patch
- https://git.kernel.org/stable/c/b660ba045b2b22cf3b4be72773de00cb48f47be5Patch
- https://git.kernel.org/stable/c/c4295487124f461405e1ef64dfa8c4ab0cb7ebcfPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.