{"id":"CVE-2025-39892","summary":"ASoC: soc-core: care NULL dirver name on snd_soc_lookup_component_nolocked()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: soc-core: care NULL dirver name on snd_soc_lookup_component_nolocked()\n\nsoc-generic-dmaengine-pcm.c uses same dev for both CPU and Platform.\nIn such case, CPU component driver might not have driver-\u003ename, then\nsnd_soc_lookup_component_nolocked() will be NULL pointer access error.\nCare NULL driver name.\n\n\tCall trace:\n\t strcmp from snd_soc_lookup_component_nolocked+0x64/0xa4\n\t snd_soc_lookup_component_nolocked from snd_soc_unregister_component_by_driver+0x2c/0x44\n\t snd_soc_unregister_component_by_driver from snd_dmaengine_pcm_unregister+0x28/0x64\n\t snd_dmaengine_pcm_unregister from devres_release_all+0x98/0xfc\n\t devres_release_all from device_unbind_cleanup+0xc/0x60\n\t device_unbind_cleanup from really_probe+0x220/0x2c8\n\t really_probe from __driver_probe_device+0x88/0x1a0\n\t __driver_probe_device from driver_probe_device+0x30/0x110\n\tdriver_probe_device from __driver_attach+0x90/0x178\n\t__driver_attach from bus_for_each_dev+0x7c/0xcc\n\tbus_for_each_dev from bus_add_driver+0xcc/0x1ec\n\tbus_add_driver from driver_register+0x80/0x11c\n\tdriver_register from do_one_initcall+0x58/0x23c\n\tdo_one_initcall from kernel_init_freeable+0x198/0x1f4\n\tkernel_init_freeable from kernel_init+0x1c/0x12c\n\tkernel_init from ret_from_fork+0x14/0x28","modified":"2026-04-02T12:48:12.138728Z","published":"2025-10-01T07:42:41.643Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39892.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/168873ca1799d3f23442b9e79eae55f907b9b126"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1d282dcd46d972be338085ae9e217462b366ce6e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39892.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-39892"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"144d6dfc7482455eabf8e8caa974a6e8d9572705"},{"fixed":"1d282dcd46d972be338085ae9e217462b366ce6e"},{"fixed":"168873ca1799d3f23442b9e79eae55f907b9b126"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39892.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}