{"api_version":"1","generated_at":"2026-07-24T20:54:07+00:00","cve":"CVE-2026-64001","urls":{"html":"https://cve.report/CVE-2026-64001","api":"https://cve.report/api/cve/CVE-2026-64001.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64001","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64001"},"summary":{"title":"ALSA: pcm: oss: Fix setup list UAF on proc write error","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: oss: Fix setup list UAF on proc write error\n\nsnd_pcm_oss_proc_write() links a newly allocated setup entry into the\nOSS setup list before duplicating the task name. If the task-name\nallocation fails, the error path frees the already linked entry and\nleaves setup_list pointing at freed memory.\n\nA later OSS device open can then walk the stale list entry in\nsnd_pcm_oss_look_for_setup() and dereference freed memory.\n\nAllocate the task name and initialize the setup entry before publishing\nthe entry on setup_list. Also fetch the initial proc read iterator only\nafter taking setup_mutex, so all setup_list traversal follows the same\nlist lifetime rules.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:39","updated_at":"2026-07-19 16:17:39"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c","name":"https://git.kernel.org/stable/c/e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/be387230dc22d870afd0e5d35912b07c2bc323bd","name":"https://git.kernel.org/stable/c/be387230dc22d870afd0e5d35912b07c2bc323bd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4cc54bdd54b337e77115be5b55577d1c58608eae","name":"https://git.kernel.org/stable/c/4cc54bdd54b337e77115be5b55577d1c58608eae","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce","name":"https://git.kernel.org/stable/c/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64001","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64001","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 060d77b9c04acd7aef60790398a53f731db8c8fe 8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 060d77b9c04acd7aef60790398a53f731db8c8fe e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 060d77b9c04acd7aef60790398a53f731db8c8fe be387230dc22d870afd0e5d35912b07c2bc323bd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 060d77b9c04acd7aef60790398a53f731db8c8fe 4cc54bdd54b337e77115be5b55577d1c58608eae git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.93 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.35 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.12 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64001","cve":"CVE-2026-64001","epss":"0.001680000","percentile":"0.063760000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/core/oss/pcm_oss.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce","status":"affected","version":"060d77b9c04acd7aef60790398a53f731db8c8fe","versionType":"git"},{"lessThan":"e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c","status":"affected","version":"060d77b9c04acd7aef60790398a53f731db8c8fe","versionType":"git"},{"lessThan":"be387230dc22d870afd0e5d35912b07c2bc323bd","status":"affected","version":"060d77b9c04acd7aef60790398a53f731db8c8fe","versionType":"git"},{"lessThan":"4cc54bdd54b337e77115be5b55577d1c58608eae","status":"affected","version":"060d77b9c04acd7aef60790398a53f731db8c8fe","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/core/oss/pcm_oss.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.17"},{"lessThan":"2.6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.93","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.93","versionStartIncluding":"2.6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.35","versionStartIncluding":"2.6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.12","versionStartIncluding":"2.6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"2.6.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: oss: Fix setup list UAF on proc write error\n\nsnd_pcm_oss_proc_write() links a newly allocated setup entry into the\nOSS setup list before duplicating the task name. If the task-name\nallocation fails, the error path frees the already linked entry and\nleaves setup_list pointing at freed memory.\n\nA later OSS device open can then walk the stale list entry in\nsnd_pcm_oss_look_for_setup() and dereference freed memory.\n\nAllocate the task name and initialize the setup entry before publishing\nthe entry on setup_list. Also fetch the initial proc read iterator only\nafter taking setup_mutex, so all setup_list traversal follows the same\nlist lifetime rules."}],"providerMetadata":{"dateUpdated":"2026-07-19T14:56:18.816Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce"},{"url":"https://git.kernel.org/stable/c/e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c"},{"url":"https://git.kernel.org/stable/c/be387230dc22d870afd0e5d35912b07c2bc323bd"},{"url":"https://git.kernel.org/stable/c/4cc54bdd54b337e77115be5b55577d1c58608eae"}],"title":"ALSA: pcm: oss: Fix setup list UAF on proc write error","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64001","datePublished":"2026-07-19T14:56:18.816Z","dateReserved":"2026-07-19T07:54:57.026Z","dateUpdated":"2026-07-19T14:56:18.816Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:39","lastModifiedDate":"2026-07-19 16:17:39","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64001","Ordinal":"1","Title":"ALSA: pcm: oss: Fix setup list UAF on proc write error","CVE":"CVE-2026-64001","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64001","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: oss: Fix setup list UAF on proc write error\n\nsnd_pcm_oss_proc_write() links a newly allocated setup entry into the\nOSS setup list before duplicating the task name. If the task-name\nallocation fails, the error path frees the already linked entry and\nleaves setup_list pointing at freed memory.\n\nA later OSS device open can then walk the stale list entry in\nsnd_pcm_oss_look_for_setup() and dereference freed memory.\n\nAllocate the task name and initialize the setup entry before publishing\nthe entry on setup_list. Also fetch the initial proc read iterator only\nafter taking setup_mutex, so all setup_list traversal follows the same\nlist lifetime rules.","Type":"Description","Title":"ALSA: pcm: oss: Fix setup list UAF on proc write error"}]}}}