CVE-2026-31475
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.
How to fix
- linux linux_kernel6.15, 6.18.21, 6.19.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.14.9 ≤ v < 6.15, 6.15.1 ≤ v < 6.18.21, 6.19 ≤ v < 6.19.11, 6.15, 7.0 | 6.15, 6.18.21, 6.19.11 |
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