{"cve":"CVE-2023-54259","nvd":{"published":"2025-12-30T13:16:14.670","modified":"2026-06-17T06:47:06.637","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsoundwire: bus: Fix unbalanced pm_runtime_put() causing usage count underflow\n\nThis reverts commit\n443a98e649b4 (\"soundwire: bus: use pm_runtime_resume_and_get()\")\n\nChange calls to pm_runtime_resume_and_get() back to pm_runtime_get_sync().\nThis fixes a usage count underrun caused by doing a pm_runtime_put() even\nthough pm_runtime_resume_and_get() returned an error.\n\nThe three affected functions ignore -EACCES error from trying to get\npm_runtime, and carry on, including a put at the end of the function.\nBut pm_runtime_resume_and_get() does not increment the usage count if it\nreturns an error. So in the -EACCES case you must not call\npm_runtime_put().\n\nThe documentation for pm_runtime_get_sync() says:\n \"Consider using pm_runtime_resume_and_get() ...  as this is likely to\n result in cleaner code.\"\n\nIn this case I don't think it results in cleaner code because the\npm_runtime_put() at the end of the function would have to be conditional on\nthe return value from pm_runtime_resume_and_get() at the top of the\nfunction.\n\npm_runtime_get_sync() doesn't have this problem because it always\nincrements the count, so always needs a put. The code can just flow through\nand do the pm_runtime_put() unconditionally.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/203aa4374c433159f163acde2d0bd4118f23bbaf","https://git.kernel.org/stable/c/4e5e9da139c007dfc397a159093b4c4187ee67fa","https://git.kernel.org/stable/c/e9537962519e88969f5f69cd0571eb4f6984403c"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2023-54259","score":0.00198,"percentile":0.09597,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}