{"api_version":"1","generated_at":"2026-07-06T05:56:54+00:00","cve":"CVE-2026-43293","urls":{"html":"https://cve.report/CVE-2026-43293","api":"https://cve.report/api/cve/CVE-2026-43293.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43293","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43293"},"summary":{"title":"media: chips-media: wave5: Fix kthread worker destruction in polling mode","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Fix kthread worker destruction in polling mode\n\nFix the cleanup order in polling mode (irq < 0) to prevent kernel warnings\nduring module removal. Cancel the hrtimer before destroying the kthread\nworker to ensure work queues are empty.\n\nIn polling mode, the driver uses hrtimer to periodically trigger\nwave5_vpu_timer_callback() which queues work via kthread_queue_work().\nThe kthread_destroy_worker() function validates that both work queues\nare empty with WARN_ON(!list_empty(&worker->work_list)) and\nWARN_ON(!list_empty(&worker->delayed_work_list)).\n\nThe original code called kthread_destroy_worker() before hrtimer_cancel(),\ncreating a race condition where the timer could fire during worker\ndestruction and queue new work, triggering the WARN_ON.\n\nThis causes the following warning on every module unload in polling mode:\n\n  ------------[ cut here ]------------\n  WARNING: CPU: 2 PID: 1034 at kernel/kthread.c:1430\n    kthread_destroy_worker+0x84/0x98\n  Modules linked in: wave5(-) rpmsg_ctrl rpmsg_char ...\n  Call trace:\n   kthread_destroy_worker+0x84/0x98\n   wave5_vpu_remove+0xc8/0xe0 [wave5]\n   platform_remove+0x30/0x58\n  ...\n  ---[ end trace 0000000000000000 ]---","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 14:16:36","updated_at":"2026-05-14 19:50:34"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/cc8071b1bac6568ea09d54be2d4f74dba80e17f8","name":"https://git.kernel.org/stable/c/cc8071b1bac6568ea09d54be2d4f74dba80e17f8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5a0c122e834b2f7f029526422c71be922960bf03","name":"https://git.kernel.org/stable/c/5a0c122e834b2f7f029526422c71be922960bf03","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0c2e752688a0ee3b89993e6de6c496d863870c93","name":"https://git.kernel.org/stable/c/0c2e752688a0ee3b89993e6de6c496d863870c93","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/156020e889edf4593870d926d3c4a6d06baac44a","name":"https://git.kernel.org/stable/c/156020e889edf4593870d926d3c4a6d06baac44a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43293","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43293","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ed7276ed2fd02208bfca9f222ef1e7b2743d710d 156020e889edf4593870d926d3c4a6d06baac44a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ed7276ed2fd02208bfca9f222ef1e7b2743d710d cc8071b1bac6568ea09d54be2d4f74dba80e17f8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ed7276ed2fd02208bfca9f222ef1e7b2743d710d 0c2e752688a0ee3b89993e6de6c496d863870c93 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ed7276ed2fd02208bfca9f222ef1e7b2743d710d 5a0c122e834b2f7f029526422c71be922960bf03 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.10","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.10 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.75 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.16 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.6 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"43293","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43293","cve":"CVE-2026-43293","epss":"0.000180000","percentile":"0.047270000","score_date":"2026-05-12","updated_at":"2026-05-13 00:11:53"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/media/platform/chips-media/wave5/wave5-vpu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"156020e889edf4593870d926d3c4a6d06baac44a","status":"affected","version":"ed7276ed2fd02208bfca9f222ef1e7b2743d710d","versionType":"git"},{"lessThan":"cc8071b1bac6568ea09d54be2d4f74dba80e17f8","status":"affected","version":"ed7276ed2fd02208bfca9f222ef1e7b2743d710d","versionType":"git"},{"lessThan":"0c2e752688a0ee3b89993e6de6c496d863870c93","status":"affected","version":"ed7276ed2fd02208bfca9f222ef1e7b2743d710d","versionType":"git"},{"lessThan":"5a0c122e834b2f7f029526422c71be922960bf03","status":"affected","version":"ed7276ed2fd02208bfca9f222ef1e7b2743d710d","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/media/platform/chips-media/wave5/wave5-vpu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.10"},{"lessThan":"6.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.75","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.16","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.6","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.10","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Fix kthread worker destruction in polling mode\n\nFix the cleanup order in polling mode (irq < 0) to prevent kernel warnings\nduring module removal. Cancel the hrtimer before destroying the kthread\nworker to ensure work queues are empty.\n\nIn polling mode, the driver uses hrtimer to periodically trigger\nwave5_vpu_timer_callback() which queues work via kthread_queue_work().\nThe kthread_destroy_worker() function validates that both work queues\nare empty with WARN_ON(!list_empty(&worker->work_list)) and\nWARN_ON(!list_empty(&worker->delayed_work_list)).\n\nThe original code called kthread_destroy_worker() before hrtimer_cancel(),\ncreating a race condition where the timer could fire during worker\ndestruction and queue new work, triggering the WARN_ON.\n\nThis causes the following warning on every module unload in polling mode:\n\n  ------------[ cut here ]------------\n  WARNING: CPU: 2 PID: 1034 at kernel/kthread.c:1430\n    kthread_destroy_worker+0x84/0x98\n  Modules linked in: wave5(-) rpmsg_ctrl rpmsg_char ...\n  Call trace:\n   kthread_destroy_worker+0x84/0x98\n   wave5_vpu_remove+0xc8/0xe0 [wave5]\n   platform_remove+0x30/0x58\n  ...\n  ---[ end trace 0000000000000000 ]---"}],"providerMetadata":{"dateUpdated":"2026-05-11T22:21:45.305Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/156020e889edf4593870d926d3c4a6d06baac44a"},{"url":"https://git.kernel.org/stable/c/cc8071b1bac6568ea09d54be2d4f74dba80e17f8"},{"url":"https://git.kernel.org/stable/c/0c2e752688a0ee3b89993e6de6c496d863870c93"},{"url":"https://git.kernel.org/stable/c/5a0c122e834b2f7f029526422c71be922960bf03"}],"title":"media: chips-media: wave5: Fix kthread worker destruction in polling mode","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43293","datePublished":"2026-05-08T13:11:16.812Z","dateReserved":"2026-05-01T14:12:55.999Z","dateUpdated":"2026-05-11T22:21:45.305Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 14:16:36","lastModifiedDate":"2026-05-14 19:50:34","problem_types":["NVD-CWE-noinfo"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.75","matchCriteriaId":"CB67FC73-CF7B-41DB-A5A5-423C53BE93EF"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.16","matchCriteriaId":"B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.6","matchCriteriaId":"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43293","Ordinal":"1","Title":"media: chips-media: wave5: Fix kthread worker destruction in pol","CVE":"CVE-2026-43293","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43293","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Fix kthread worker destruction in polling mode\n\nFix the cleanup order in polling mode (irq < 0) to prevent kernel warnings\nduring module removal. Cancel the hrtimer before destroying the kthread\nworker to ensure work queues are empty.\n\nIn polling mode, the driver uses hrtimer to periodically trigger\nwave5_vpu_timer_callback() which queues work via kthread_queue_work().\nThe kthread_destroy_worker() function validates that both work queues\nare empty with WARN_ON(!list_empty(&worker->work_list)) and\nWARN_ON(!list_empty(&worker->delayed_work_list)).\n\nThe original code called kthread_destroy_worker() before hrtimer_cancel(),\ncreating a race condition where the timer could fire during worker\ndestruction and queue new work, triggering the WARN_ON.\n\nThis causes the following warning on every module unload in polling mode:\n\n  ------------[ cut here ]------------\n  WARNING: CPU: 2 PID: 1034 at kernel/kthread.c:1430\n    kthread_destroy_worker+0x84/0x98\n  Modules linked in: wave5(-) rpmsg_ctrl rpmsg_char ...\n  Call trace:\n   kthread_destroy_worker+0x84/0x98\n   wave5_vpu_remove+0xc8/0xe0 [wave5]\n   platform_remove+0x30/0x58\n  ...\n  ---[ end trace 0000000000000000 ]---","Type":"Description","Title":"media: chips-media: wave5: Fix kthread worker destruction in pol"}]}}}