{"cve":"CVE-2026-72257","nvd":{"published":"2026-08-15T06:21:53.527","modified":"2026-08-17T06:18:28.020","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: qcom: q6apm: fix NULL pointer dereference in graph_callback\n\nWhen q6apm_free_fragments() is called it frees rx_data.buf/tx_data.buf\nand sets them to NULL under graph->lock. A late DSP buffer-done response\ncan race with this: graph_callback() passes the !graph->ar_graph guard\n(not yet NULL), acquires the lock, but then dereferences a now-NULL buf\npointer to read buf[token].phys, crashing at virtual address 0x10.\n\nAdd a NULL check for buf inside the mutex-protected section in both the\nwrite-done (DATA_CMD_RSP_WR_SH_MEM_EP_DATA_BUFFER_DONE_V2) and\nread-done (DATA_CMD_RSP_RD_SH_MEM_EP_DATA_BUFFER_V2) handlers and bail\nout cleanly if buffers have already been freed.\n\nThis problem is only shown up recently while apr bus was updated to\nprocess the commands per service rather from single global queue.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/214af790e3a33ab73587de4c925c60a550eae9c6","https://git.kernel.org/stable/c/2c715f8a1e644ce4c3e8be5b0fd3f1f4704b73b3","https://git.kernel.org/stable/c/2e9261761b35f0b67b7487688cd1365f535be0b3","https://git.kernel.org/stable/c/a164e744d8de1c41049bd9a1452a4b6bbf5bd8bc","https://git.kernel.org/stable/c/ca028334343a140efda4b22e53cbce2c5e94a489"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-72257","score":0.00215,"percentile":0.11877,"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."]}