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CVE-2022-48798

s390/cio: verify the driver availability for path_event call

MEDIUM
5.5
CVSS Score
Published: July 16, 2024 at 11:43 AM UTC
Updated: June 17, 2026 at 05:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: s390/cio: verify the driver availability for path_event call If no driver is attached to a device or the driver does not provide the path_event function, an FCES path-event on this device could end up in a kernel-panic. Verify the driver availability before the path_event function call.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.11 ≤ v < 5.15.245.11 ≤ v < 5.16.105.11 ≤ v < 5.175.16 ≤ v < 5.16.1032ef938815c1fb42d65212aac860ab153a64de1a5.115.17 rc15.17 rc25.17 rc3
Vendor states this is fixed in a0619027f11590b2070624297530c34dc7f91bcd (fixed)
Vendor states this is fixed in dd9cb842fa9d90653a9b48aba52f89c069f3bc50 (fixed)
Vendor states this is fixed in fe990b7bf6ac93f1d850d076b8f0e758268aa4ab (fixed)
Vendor states this is fixed in 5.11 (unaffected)
Vendor states this is fixed in 5.15.24 (unaffected)
Vendor states this is fixed in 5.16.10 (unaffected)
Vendor states this is fixed in 5.17 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a0619027f11590b2070624297530c34dc7f91bcd
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/dd9cb842fa9d90653a9b48aba52f89c069f3bc50
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fe990b7bf6ac93f1d850d076b8f0e758268aa4ab

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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