{"id":"CVE-2026-31475","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-31475","generatedAt":"2026-10-28T03:28:20.153Z","title":"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().","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: sma1307: fix double free of devm_kzalloc() memory\n\nA previous change added NULL checks and cleanup for allocation\nfailures in sma1307_setting_loaded().\n\nHowever, the cleanup for mode_set entries is wrong. Those entries are\nallocated with devm_kzalloc(), so they are device-managed resources and\nmust not be freed with kfree(). Manually freeing them in the error path\ncan lead to a double free when devres later releases the same memory.\n\nDrop the manual kfree() loop and let devres handle the cleanup.","published":"2026-04-22T14:16:44.000Z","lastModified":"2026-06-17T10:33:49.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-415"],"affected":["linux/linux kernel"],"epss":{"score":0.00127,"percentile":0.02365,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/1a82c3272626db9006f4c2cad3adf2916417aed6","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d472d1a52985211b92883bb64bbe710b45980190","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fe757092d2329c397ecb32f2bf68a5b1c4bd9193","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31475","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}