Vulnerability details
CVE-2026-31475
Linux Linux
ASoC: sma1307: fix double free of devm_kzalloc() memory
CVSS 3.1
7.8High
Official description
In the Linux kernel, the following vulnerability has been resolved: ASoC: sma1307: fix double free of devm_kzalloc() memory A previous change added NULL checks and cleanup for allocation failures in sma1307_setting_loaded(). However, the cleanup for mode_set entries is wrong. Those entries are allocated with devm_kzalloc(), so they are device-managed resources and must not be freed with kfree(). Manually freeing them in the error path can lead to a double free when devres later releases the same memory. Drop the manual kfree() loop and let devres handle the cleanup.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.15 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f8434b8ba437d3f6cbcd9ffe8405bd16ed28fc5c | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 0ec6bd16705fe21d6429d6b8f7981eae2142bba8 ≤ v < d472d1a52985211b92883bb64bbe710b45980190 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 0ec6bd16705fe21d6429d6b8f7981eae2142bba8 ≤ v < 1a82c3272626db9006f4c2cad3adf2916417aed6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 0ec6bd16705fe21d6429d6b8f7981eae2142bba8 ≤ v < fe757092d2329c397ecb32f2bf68a5b1c4bd9193 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 6.14.9 ≤ v < 6.15 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-04-22
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.12%
Probability of exploitation in 30 days
2.4%
Percentile (among all CVEs)
Weaknesses (CWE)
- —