{"api_version":"1","generated_at":"2026-09-19T15:00:41+00:00","cve":"CVE-2026-93070","urls":{"html":"https://cve.report/CVE-2026-93070","api":"https://cve.report/api/cve/CVE-2026-93070.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-93070","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-93070"},"summary":{"title":"media: ipu6: Do not free aux device pdata after init","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ipu6: Do not free aux device pdata after init\n\nipu6_bus_initialize_device() stores the isys/psys pdata pointer in\nstruct ipu6_bus_device and initializes the auxiliary device. After that\npoint, error unwinding must drop the auxiliary device reference and let\nipu6_bus_release() free both the bus device and adev->pdata.\n\nThe isys and psys init paths already call put_device() when MMU\ninitialization fails, and ipu6_bus_add_device() calls\nauxiliary_device_uninit() on auxiliary_device_add() failure. Both paths\ntherefore run the bus release callback. The extra kfree(pdata) in the\ncallers can release the same object a second time.\n\nRemove the manual pdata frees after the auxiliary device has been\ninitialized.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:18:00","updated_at":"2026-09-18 18:18:20"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/5323ed5a7bb2568191ec676b2035b0396105aa05","name":"https://git.kernel.org/stable/c/5323ed5a7bb2568191ec676b2035b0396105aa05","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/faa1eb97f0e66bf122f44b62be6b323f86333e9f","name":"https://git.kernel.org/stable/c/faa1eb97f0e66bf122f44b62be6b323f86333e9f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9be07216af4cfc4813e1a46ce26407d31ea845de","name":"https://git.kernel.org/stable/c/9be07216af4cfc4813e1a46ce26407d31ea845de","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7d102d1f0631807a491a140f67c9628dea85dfd2","name":"https://git.kernel.org/stable/c/7d102d1f0631807a491a140f67c9628dea85dfd2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93070","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93070","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cb3117b074aefb0320d8d728a0a7f277a121adbd faa1eb97f0e66bf122f44b62be6b323f86333e9f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cb3117b074aefb0320d8d728a0a7f277a121adbd 5323ed5a7bb2568191ec676b2035b0396105aa05 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cb3117b074aefb0320d8d728a0a7f277a121adbd 7d102d1f0631807a491a140f67c9628dea85dfd2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cb3117b074aefb0320d8d728a0a7f277a121adbd 9be07216af4cfc4813e1a46ce26407d31ea845de 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 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"93070","cve":"CVE-2026-93070","epss":"0.002000000","percentile":"0.101530000","score_date":"2026-09-18","updated_at":"2026-09-19 00:06:16"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/media/pci/intel/ipu6/ipu6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"faa1eb97f0e66bf122f44b62be6b323f86333e9f","status":"affected","version":"cb3117b074aefb0320d8d728a0a7f277a121adbd","versionType":"git"},{"lessThan":"5323ed5a7bb2568191ec676b2035b0396105aa05","status":"affected","version":"cb3117b074aefb0320d8d728a0a7f277a121adbd","versionType":"git"},{"lessThan":"7d102d1f0631807a491a140f67c9628dea85dfd2","status":"affected","version":"cb3117b074aefb0320d8d728a0a7f277a121adbd","versionType":"git"},{"lessThan":"9be07216af4cfc4813e1a46ce26407d31ea845de","status":"affected","version":"cb3117b074aefb0320d8d728a0a7f277a121adbd","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/media/pci/intel/ipu6/ipu6.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":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","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: ipu6: Do not free aux device pdata after init\n\nipu6_bus_initialize_device() stores the isys/psys pdata pointer in\nstruct ipu6_bus_device and initializes the auxiliary device. After that\npoint, error unwinding must drop the auxiliary device reference and let\nipu6_bus_release() free both the bus device and adev->pdata.\n\nThe isys and psys init paths already call put_device() when MMU\ninitialization fails, and ipu6_bus_add_device() calls\nauxiliary_device_uninit() on auxiliary_device_add() failure. Both paths\ntherefore run the bus release callback. The extra kfree(pdata) in the\ncallers can release the same object a second time.\n\nRemove the manual pdata frees after the auxiliary device has been\ninitialized.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"scenarios":[{"lang":"en","value":"AV:L - The extra kfree(pdata) runs only in ipu6_isys_init()/ipu6_psys_init() after ipu6_bus_initialize_device(), called from ipu6_pci_probe() on Intel IPU6 PCI IDs (0x9a19/0x4e19/0x465d/0x462e/0xa75d/0x7d19). V4L2 ioctls and received packets never enter those error paths; this is a local PCI probe, not a network or USB protocol path.\nAC:L - After ipu6_mmu_init() fails, put_device() runs ipu6_bus_release() which kfree(adev->pdata) before the extra kfree(pdata); ipu6_bus_add_device() does the same via auxiliary_device_uninit() when auxiliary_device_add() fails. Both double-frees then run with no race. A local attacker can induce those ENOMEM failures (alloc_dma_mapping()/device_add()) with allocation pressure.\nPR:L - ipu6_pci_probe() performs no capable() check. Sysfs bind/modprobe needs init-namespace admin, but probe already runs automatically: request_firmware() for isp->cpd_fw_name waits for userspace, and ipu_bridge_init() can return -EPROBE_DEFER until IVSC is ready then retry. An ordinary local user can apply memory pressure during that automatic probe, so Low is the higher defensible value.\nUI:N - The double-free occurs inside ipu6_pci_probe error unwinding in ipu6_isys_init()/ipu6_psys_init(); no mount, file open, or other victim action is required. PCI enumeration, firmware wait, and IVSC deferred retries are kernel/udev driven.\nS:U - kfree of the isys/psys pdata slab and the containing ipu6_bus_device corrupts host kernel heap in the same security authority as the IPU6 PCI driver. This is not a VM escape, IOMMU bypass, or sandbox boundary cross.\nC:H - ipu6_bus_release() already kfree(adev->pdata) and kfree(adev); the extra kfree(pdata) is a SLUB double-free of ipu6_isys_pdata/ipu6_psys_pdata, and the MMU-fail path then reads isys_adev->mmu after adev was freed. Reclaiming those slabs can disclose kernel memory.\nI:H - Double-free of pdata after ipu6_bus_release(), plus kfree of struct ipu6_bus_device on the MMU-fail put_device() path, yields two owners of one heap object. That overlapping allocation can corrupt live kernel structures and is exploitable for arbitrary writes or control-flow hijack, not merely a clean fail.\nA:H - The second kfree(pdata) after ipu6_bus_release() trips SLAB_FREELIST_HARDENED BUG_ON or corrupts the freelist, and the MMU-fail path dereferences the already-freed ipu6_bus_device via isys_adev->mmu. Either produces a kernel oops or panic during probe unwind."}]}],"providerMetadata":{"dateUpdated":"2026-09-18T17:55:50.993Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/faa1eb97f0e66bf122f44b62be6b323f86333e9f"},{"url":"https://git.kernel.org/stable/c/5323ed5a7bb2568191ec676b2035b0396105aa05"},{"url":"https://git.kernel.org/stable/c/7d102d1f0631807a491a140f67c9628dea85dfd2"},{"url":"https://git.kernel.org/stable/c/9be07216af4cfc4813e1a46ce26407d31ea845de"}],"title":"media: ipu6: Do not free aux device pdata after init","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-93070","datePublished":"2026-09-17T16:10:54.393Z","dateReserved":"2026-09-17T15:57:05.661Z","dateUpdated":"2026-09-18T17:55:50.993Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:18:00","lastModifiedDate":"2026-09-18 18:18:20","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"93070","Ordinal":"1","Title":"media: ipu6: Do not free aux device pdata after init","CVE":"CVE-2026-93070","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"93070","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ipu6: Do not free aux device pdata after init\n\nipu6_bus_initialize_device() stores the isys/psys pdata pointer in\nstruct ipu6_bus_device and initializes the auxiliary device. After that\npoint, error unwinding must drop the auxiliary device reference and let\nipu6_bus_release() free both the bus device and adev->pdata.\n\nThe isys and psys init paths already call put_device() when MMU\ninitialization fails, and ipu6_bus_add_device() calls\nauxiliary_device_uninit() on auxiliary_device_add() failure. Both paths\ntherefore run the bus release callback. The extra kfree(pdata) in the\ncallers can release the same object a second time.\n\nRemove the manual pdata frees after the auxiliary device has been\ninitialized.\n\nThis issue was found by a static analysis checker and confirmed by\nmanual source review.","Type":"Description","Title":"media: ipu6: Do not free aux device pdata after init"}]}}}