CVE-2024-42100: clk: sunxi-ng: common: Don't call hw_to_ccu_common on hw without common
Vulnerability summary
CVE-2024-42100 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15% 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 12 · Related 10Timeline
- 30-07-2024PublishedVulnerability first disclosed.
- 23-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: clk: sunxi-ng: common: Don't call hw_to_ccu_common on hw without common In order to set the rate range of a hw sunxi_ccu_probe calls hw_to_ccu_common() assuming all entries in desc->ccu_clks are contained in a ccu_common struct. This assumption is incorrect and, in consequence, causes invalid pointer de-references. Remove the faulty call. Instead, add one more loop that iterates over the ccu_clks and sets the rate range, if required.
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
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.24% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu92 products
- linux< 6.8.0-48.48
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1018.20
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 547263745e15a038ec3954b5c283805529377626, < 14c78d69dbca6a28af14095f639ec4318ec07fdc | ≥ b914ec33b391ec766545a41f0cfc0de3e0b388d7, < 7a0e2738cb6da5a55c9908dff333600aeb263e07 | ≥ b914ec33b391ec766545a41f0cfc0de3e0b388d7, < ea977d742507e534d9fe4f4d74256f6b7f589338 | 761cbd9c0e4ed082b548bf6a0de25eebad24309d | ≥ 6.6.31, < 6.6.39 | ≥ 6.8.10, < 6.9 | 6.9
- linux_kernelEOL≥ 6.6.31, < 6.6.39 | ≥ 6.8.10, < 6.9 | ≥ 6.9.1, < 6.9.9 | 6.9 | 6.9:rc7 | 6.10:rc1 | 6.10:rc2 | 6.10:rc3 | 6.10:rc4 | 6.10:rc5 | 6.10:rc6
Debian1 product
- linux< 6.9.9-1
3 vendors · 95 products