CVE-2025-71114: via_wdt: fix critical boot hang due to unnamed resource allocation
Vulnerability summary
CVE-2025-71114 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.4% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 46 · Related 42Timeline
- 14-01-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
Description
In 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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
Increase +0.03 pp
From 0.14% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-401Missing Release of Memory after Effective LifetimeThe product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu157 products
- linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-110.110 | < 6.17.0-22.22
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1052.55 | < 6.17.0-1012.12
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d, < 1d56025a3af50db0f3da2792f41eb9943eee5324 | ≥ dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d, < c7b986adc9e9336066350542ac5a2005d305ae78 | ≥ dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d, < 47c910965c936724070d2a8094a4c3ed8f452856 | ≥ dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d, < d2c7c90aca7b37f60f16b2bedcfeb16204f2f35d | ≥ dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d, < f7b6370d0fbee06a867037d675797a606cb62e57 | ≥ dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d, < c6a2dd4f2e4e6cbdfe7a1618160281af897b75db | ≥ dc3c56b703dad4aec8a9b3dd86f03a90d0c26a2d, < 7aa31ee9ec92915926e74731378c009c9cc04928 | 3.3
- linux_kernel≥ 3.3.1, < 5.10.248 | ≥ 5.11, < 5.15.198 | ≥ 5.16, < 6.1.160 | ≥ 6.2, < 6.6.120 | ≥ 6.7, < 6.12.64 | ≥ 6.13, < 6.18.3 | 3.3 | 6.19:rc1 | 6.19:rc2 | 6.19:rc3 | 6.19:rc4 | 6.19:rc5 | 6.19:rc6 | 6.19:rc7 | 6.19:rc8
Debian1 product
- linux< 6.1.162-1 | < 6.12.69-1 | < 6.18.3-1
3 vendors · 160 products
