via_wdt: fix critical boot hang due to unnamed resource allocation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-71114
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-01-14 15:16:01 UTC
Updated2026-07-14 13:18:03 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: via_wdt: fix critical boot hang due to unnamed resource allocation The VIA watchdog driver uses allocate_resource() to reserve a MMIO region for the watchdog control register. However, the allocated resource was not given a name, which causes the kernel resource tree to contain an entry marked as "<BAD>" under /proc/iomem on x86 platforms. During boot, this unnamed resource can lead to a critical hang because subsequent resource lookups and conflict checks fail to handle the invalid entry properly.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d 1d56025a3af50db0f3da2792f41eb9943eee5324 git Not specified
CNA Linux Linux affected dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d c7b986adc9e9336066350542ac5a2005d305ae78 git Not specified
CNA Linux Linux affected dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d 47c910965c936724070d2a8094a4c3ed8f452856 git Not specified
CNA Linux Linux affected dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d git Not specified
CNA Linux Linux affected dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d f7b6370d0fbee06a867037d675797a606cb62e57 git Not specified
CNA Linux Linux affected dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d c6a2dd4f2e4e6cbdfe7a1618160281af897b75db git Not specified
CNA Linux Linux affected dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d 7aa31ee9ec92915926e74731378c009c9cc04928 git Not specified
CNA Linux Linux affected 3.3 Not specified
CNA Linux Linux unaffected 3.3 semver Not specified
CNA Linux Linux unaffected 5.10.248 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.198 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.160 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.120 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.64 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.3 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/47c910965c936724070d2a8094a4c3ed8f452856 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7aa31ee9ec92915926e74731378c009c9cc04928 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f7b6370d0fbee06a867037d675797a606cb62e57 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-019113.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/c7b986adc9e9336066350542ac5a2005d305ae78 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c6a2dd4f2e4e6cbdfe7a1618160281af897b75db 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1d56025a3af50db0f3da2792f41eb9943eee5324 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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