CVE-2024-40965: i2c: lpi2c: Avoid calling clk_get_rate during transfer
Vulnerability summary
CVE-2024-40965 is a medium (CVSS 5.5) Improper Locking vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.7% 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 44 · Related 43Timeline
- 12-07-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: i2c: lpi2c: Avoid calling clk_get_rate during transfer Instead of repeatedly calling clk_get_rate for each transfer, lock the clock rate and cache the value. A deadlock has been observed while adding tlv320aic32x4 audio codec to the system. When this clock provider adds its clock, the clk mutex is locked already, it needs to access i2c, which in return needs the mutex for clk_get_rate as well.
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
0.22%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.22% 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 causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu127 products
- linuxAll versions (No fix recorded) | < 5.4.0-208.228 | < 5.15.0-133.144 | < 6.8.0-44.44
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1140.150 | < 5.15.0-1078.85 | < 6.8.0-1015.16
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ a55fa9d0e42e31b0292540e6324d481aad307644, < d038693e08adf9c162c6377800495e4f5a2df045 | ≥ a55fa9d0e42e31b0292540e6324d481aad307644, < 2b42e9587a7a9c7b824e0feb92958f258263963e | ≥ a55fa9d0e42e31b0292540e6324d481aad307644, < 4268254a39484fc11ba991ae148bacbe75d9cc0a | 4.10
- linux_kernel< 6.9.7
Debian1 product
- linuxAll versions (No fix recorded) | < 6.9.7-1
3 vendors · 130 products
