{"api_version":"1","generated_at":"2026-10-27T06:05:32+00:00","cve":"CVE-2026-90316","urls":{"html":"https://cve.report/CVE-2026-90316","api":"https://cve.report/api/cve/CVE-2026-90316.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90316","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90316"},"summary":{"title":"drm/omap: dsi: Do not copy isr table","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/omap: dsi: Do not copy isr table\n\nTo be able to unregister stuff from isrs, the corresponding table was\ncopied.  Nobody seems to unregister stuff that way, so it does not help.\nBut there are stack-allocated objects passed to these isrs giving chances\nof UAF of these objects if irqs are unregistered while they are handled,\nso better do not copy that table.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:29","updated_at":"2026-10-19 09:19:25"},"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/30810bdf273b4c93f8731b96a7204f33e052180d","name":"https://git.kernel.org/stable/c/30810bdf273b4c93f8731b96a7204f33e052180d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b3cbd1451c240446ce170f514244e1cb65ec0de4","name":"https://git.kernel.org/stable/c/b3cbd1451c240446ce170f514244e1cb65ec0de4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/542a6a3ec77cd29f953987f7263f32fb8acb097e","name":"https://git.kernel.org/stable/c/542a6a3ec77cd29f953987f7263f32fb8acb097e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/97c03b32b28a9f7f13f768f2b06e1eaafe850e66","name":"https://git.kernel.org/stable/c/97c03b32b28a9f7f13f768f2b06e1eaafe850e66","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9063b30faae8ccaacf003735560df3956dbb592f","name":"https://git.kernel.org/stable/c/9063b30faae8ccaacf003735560df3956dbb592f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2c27a84ba8d1bfed046d0067161d92001605accc","name":"https://git.kernel.org/stable/c/2c27a84ba8d1bfed046d0067161d92001605accc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f6733460b6d483dea7bfb5cfceb11cbff31a60b7","name":"https://git.kernel.org/stable/c/f6733460b6d483dea7bfb5cfceb11cbff31a60b7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90316","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90316","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ae2ddddf44cd9f73def2dbdb68c6859072262ff b3cbd1451c240446ce170f514244e1cb65ec0de4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ae2ddddf44cd9f73def2dbdb68c6859072262ff f6733460b6d483dea7bfb5cfceb11cbff31a60b7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ae2ddddf44cd9f73def2dbdb68c6859072262ff 542a6a3ec77cd29f953987f7263f32fb8acb097e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ae2ddddf44cd9f73def2dbdb68c6859072262ff 2c27a84ba8d1bfed046d0067161d92001605accc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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00:03:19"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/omapdrm/dss/dsi.c","drivers/gpu/drm/omapdrm/dss/dsi.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b3cbd1451c240446ce170f514244e1cb65ec0de4","status":"affected","version":"4ae2ddddf44cd9f73def2dbdb68c6859072262ff","versionType":"git"},{"lessThan":"f6733460b6d483dea7bfb5cfceb11cbff31a60b7","status":"affected","version":"4ae2ddddf44cd9f73def2dbdb68c6859072262ff","versionType":"git"},{"lessThan":"542a6a3ec77cd29f953987f7263f32fb8acb097e","status":"affected","version":"4ae2ddddf44cd9f73def2dbdb68c6859072262ff","versionType":"git"},{"lessThan":"2c27a84ba8d1bfed046d0067161d92001605accc","status":"affected","version":"4ae2ddddf44cd9f73def2dbdb68c6859072262ff","versionType":"git"},{"lessThan":"9063b30faae8ccaacf003735560df3956dbb592f","status":"affected","version":"4ae2ddddf44cd9f73def2dbdb68c6859072262ff","versionType":"git"},{"lessThan":"30810bdf273b4c93f8731b96a7204f33e052180d","status":"affected","version":"4ae2ddddf44cd9f73def2dbdb68c6859072262ff","versionType":"git"},{"lessThan":"97c03b32b28a9f7f13f768f2b06e1eaafe850e66","status":"affected","version":"4ae2ddddf44cd9f73def2dbdb68c6859072262ff","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/omapdrm/dss/dsi.c","drivers/gpu/drm/omapdrm/dss/dsi.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.39"},{"lessThan":"2.6.39","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.221","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","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","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.221","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.188","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"2.6.39","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/omap: dsi: Do not copy isr table\n\nTo be able to unregister stuff from isrs, the corresponding table was\ncopied.  Nobody seems to unregister stuff that way, so it does not help.\nBut there are stack-allocated objects passed to these isrs giving chances\nof UAF of these objects if irqs are unregistered while they are handled,\nso better do not copy that table."}],"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 UAF is reached from local DRM_IOCTL_MODE_ATOMIC on /dev/dri/card*: dsi_bridge_disable()→dsi_disable()→dsi_sync_vc(), or a command-mode pageflip via omap_crtc_flush()→dsi_update_channel()→_dsi_send_nop()→dsi_vc_send_bta_sync(). Those register stack objects that omap_dsi_irq_handler() later fires from isr_tables_copy; no remote protocol carries this.\nAC:L - The attacker repeats those commits/pageflips so dsi_vc_send_bta_sync()/dsi_sync_vc_vp() register a stack completion then dsi_unregister_isr_vc() after wait_for_completion_timeout(), while DSI BTA/PACKET_SENT IRQs run omap_dsi_irq_handler() on another CPU against the copied table; both sides of the copy-vs-unregister race are attacker-driven.\nPR:L - DRM_IOCTL_MODE_ATOMIC is gated by DRM_MASTER in drm_ioctl_permit(), not CAP_SYS_ADMIN. drm_master_open() makes the first opener of an unclaimed omapdrm card the master, and a seat/video-group user on AM57x/OMAP DSI hardware typically holds that; this is ordinary local privilege, not init-namespace root.\nUI:N - The attacker opens /dev/dri/card* and submits their own atomic commits or dirty/page-flip ioctls that call dsi_vc_send_bta_sync() or dsi_sync_vc(); no other user must mount media, confirm a prompt, or attach a panel.\nS:U - dsi_call_isrs() running dsi_completion_handler()/dsi_packet_sent_handler_vp() corrupts kernel stack in the same kernel that hosts omapdrm; this is local kernel memory corruption, not a VM, IOMMU, or sandbox-boundary escape.\nC:H - dsi_call_isrs() invokes dsi_packet_sent_handler_vp/l4 with isr_data->arg still pointing at a returned dsi_packet_sent_handler_data / DECLARE_COMPLETION_ONSTACK frame; after reuse that object is read as a fake dsi pointer through dsi_read_reg()/REG_GET, which is a UAF read of kernel memory.\nI:H - The same dangling arg is passed to complete() in dsi_completion_handler and to complete(vp_data->completion) in the packet-sent handlers; a reused stack slot that overwrites the completion pointer lets complete() lock and wake a wait-queue at an attacker-influenced address, a kernel write/control-flow hijack.\nA:H - complete() on a freed stack completion, or dsi_read_reg() through a dangling dsi_data in dsi_packet_sent_handler_vp, oopses or panics the kernel even if the UAF is not turned into a full write primitive."}]}],"providerMetadata":{"dateUpdated":"2026-10-19T09:01:32.683Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b3cbd1451c240446ce170f514244e1cb65ec0de4"},{"url":"https://git.kernel.org/stable/c/f6733460b6d483dea7bfb5cfceb11cbff31a60b7"},{"url":"https://git.kernel.org/stable/c/542a6a3ec77cd29f953987f7263f32fb8acb097e"},{"url":"https://git.kernel.org/stable/c/2c27a84ba8d1bfed046d0067161d92001605accc"},{"url":"https://git.kernel.org/stable/c/9063b30faae8ccaacf003735560df3956dbb592f"},{"url":"https://git.kernel.org/stable/c/30810bdf273b4c93f8731b96a7204f33e052180d"},{"url":"https://git.kernel.org/stable/c/97c03b32b28a9f7f13f768f2b06e1eaafe850e66"}],"title":"drm/omap: dsi: Do not copy isr table","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90316","datePublished":"2026-09-17T16:08:34.875Z","dateReserved":"2026-09-11T19:38:34.801Z","dateUpdated":"2026-10-19T09:01:32.683Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:29","lastModifiedDate":"2026-10-19 09:19:25","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":"90316","Ordinal":"1","Title":"drm/omap: dsi: Do not copy isr table","CVE":"CVE-2026-90316","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90316","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/omap: dsi: Do not copy isr table\n\nTo be able to unregister stuff from isrs, the corresponding table was\ncopied.  Nobody seems to unregister stuff that way, so it does not help.\nBut there are stack-allocated objects passed to these isrs giving chances\nof UAF of these objects if irqs are unregistered while they are handled,\nso better do not copy that table.","Type":"Description","Title":"drm/omap: dsi: Do not copy isr table"}]}}}