CVE-2026-31475

high

In the Linux kernel, the following vulnerability has been resolved: ASoC: sma1307: fix double free of devm_kzalloc() memory A previous change added NULL chec…

Vendor / product: Linux — linux kernel

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

7.8

7.8 (CVSS v3.1)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity source: NVD CVSS v3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

Timeline (UTC)

Published: 2026-04-22 14:16

Modified: 2026-11-11 23:10

NVD status: Analyzed

Last synced 3 hours ago

Verified against the source API 2026-11-11 23:12 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linux / linux_kernel ≥6.14.9 <6.15, ≥6.15.1 <6.18.21, ≥6.19 <6.19.11, 6.15, 7.0

Weakness classification (CWE)

CWE-415

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://git.kernel.org/stable/c/1a82c3272626db9006f4c2cad3adf2916417aed6

Patch / mitigation: https://git.kernel.org/stable/c/d472d1a52985211b92883bb64bbe710b45980190

Patch / mitigation: https://git.kernel.org/stable/c/fe757092d2329c397ecb32f2bf68a5b1c4bd9193

References

https://git.kernel.org/stable/c/1a82c3272626db9006f4c2cad3adf2916417aed6 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d472d1a52985211b92883bb64bbe710b45980190 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fe757092d2329c397ecb32f2bf68a5b1c4bd9193 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Data sources

NVD CVE API 2.0 — fetched 2026-11-11 23:12 UTC · record ↗

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CVE-2026-31475

Affected products

Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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