{"id":"CVE-2023-52806","summary":"ALSA: hda: Fix possible null-ptr-deref when assigning a stream","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda: Fix possible null-ptr-deref when assigning a stream\n\nWhile AudioDSP drivers assign streams exclusively of HOST or LINK type,\nnothing blocks a user to attempt to assign a COUPLED stream. As\nsupplied substream instance may be a stub, what is the case when\ncode-loading, such scenario ends with null-ptr-deref.","modified":"2026-04-02T09:43:21.628372Z","published":"2024-05-21T15:31:17.025Z","related":["SUSE-SU-2024:2008-1","SUSE-SU-2024:2011-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2189-1","SUSE-SU-2024:2190-1","SUSE-SU-2024:2571-1","SUSE-SU-2024:2896-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52806.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2527775616f3638f4fd54649eba8c7b84d5e4250"},{"type":"WEB","url":"https://git.kernel.org/stable/c/25354bae4fc310c3928e8a42fda2d486f67745d7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/43b91df291c8802268ab3cfd8fccfdf135800ed4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4a320da7f7cbdab2098b103c47f45d5061f42edd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/631a96e9eb4228ff75fce7e72d133ca81194797e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/758c7733cb821041f5fd403b7b97c0b95d319323"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7de25112de8222fd20564769e6c99dc9f9738a0b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f93dc90c2e8ed664985e366aa6459ac83cdab236"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe7c1a0c2b25c82807cb46fc3aadbf2664a682b0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52806.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52806"},{"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":"14752412721c61d9ac1e8d8fb51d7148cb15f85b"},{"fixed":"7de25112de8222fd20564769e6c99dc9f9738a0b"},{"fixed":"758c7733cb821041f5fd403b7b97c0b95d319323"},{"fixed":"2527775616f3638f4fd54649eba8c7b84d5e4250"},{"fixed":"25354bae4fc310c3928e8a42fda2d486f67745d7"},{"fixed":"631a96e9eb4228ff75fce7e72d133ca81194797e"},{"fixed":"43b91df291c8802268ab3cfd8fccfdf135800ed4"},{"fixed":"fe7c1a0c2b25c82807cb46fc3aadbf2664a682b0"},{"fixed":"4a320da7f7cbdab2098b103c47f45d5061f42edd"},{"fixed":"f93dc90c2e8ed664985e366aa6459ac83cdab236"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52806.json"}}],"schema_version":"1.7.5"}