{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80606", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.772Z", "datePublished": "2026-08-28T06:48:30.960Z", "dateUpdated": "2026-08-28T06:48:30.960Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-28T06:48:30.960Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/userptr: Hold notifier_lock for write on inject test path\n\nWhen CONFIG_DRM_XE_USERPTR_INVAL_INJECT=y, xe_pt_svm_userptr_pre_commit()\nruns vma_check_userptr() with the svm notifier_lock taken for read. The\ntest injection causes vma_check_userptr() to call\nxe_vma_userptr_force_invalidate(), which feeds into\nxe_vma_userptr_do_inval() with drm_gpusvm_ctx.in_notifier=true. That\nflag tells drm_gpusvm_unmap_pages() the caller already holds\nnotifier_lock for write and only asserts the mode. Because the caller\nactually holds it for read, the assertion fires:\n\n WARNING: drivers/gpu/drm/drm_gpusvm.c:1669 at \\\n drm_gpusvm_unmap_pages+0xd4/0x130 [drm_gpusvm_helper]\n Call Trace:\n xe_vma_userptr_do_inval+0x40d/0xfd0 [xe]\n xe_vma_userptr_invalidate_pass1+0x3e6/0x8d0 [xe]\n xe_vma_userptr_force_invalidate+0xde/0x290 [xe]\n vma_check_userptr.constprop.0+0x1c6/0x220 [xe]\n xe_pt_svm_userptr_pre_commit+0x6a3/0xc60 [xe]\n ...\n xe_vm_bind_ioctl+0x3a0a/0x4480 [xe]\n\nAcquire notifier_lock for write in pre-commit when the inject Kconfig\nis enabled, via new helpers xe_pt_svm_userptr_notifier_lock()/_unlock().\nRename xe_svm_assert_held_read() to\nxe_svm_assert_held_read_or_inject_write() so it asserts the correct\nmode under each build configuration. Production builds\n(CONFIG_DRM_XE_USERPTR_INVAL_INJECT=n) keep the existing read-mode\nbehavior bit-for-bit.\n\n(cherry picked from commit 80ccbd97ffee8ad2e73167d826fe7be548364365)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/xe/xe_pt.c", "drivers/gpu/drm/xe/xe_svm.h"], "versions": [{"version": "9e978741488261e117bb50e5dfcf8e4080990958", "lessThan": "f9a9abd7bbdab3dfe1b1155e1457dc02b5e14ea5", "status": "affected", "versionType": "git"}, {"version": "9e978741488261e117bb50e5dfcf8e4080990958", "lessThan": "ab9ea5c943c7e780124e75b7ffad9f1c752b2579", "status": "affected", "versionType": "git"}, {"version": "9e978741488261e117bb50e5dfcf8e4080990958", "lessThan": "dca6e08c923a44d2d66b955e03dd57a3a38c2b94", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/xe/xe_pt.c", "drivers/gpu/drm/xe/xe_svm.h"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f9a9abd7bbdab3dfe1b1155e1457dc02b5e14ea5"}, {"url": "https://git.kernel.org/stable/c/ab9ea5c943c7e780124e75b7ffad9f1c752b2579"}, {"url": "https://git.kernel.org/stable/c/dca6e08c923a44d2d66b955e03dd57a3a38c2b94"}], "title": "drm/xe/userptr: Hold notifier_lock for write on inject test path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/xe/xe_pt.c", "drivers/gpu/drm/xe/xe_svm.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f9a9abd7bbdab3dfe1b1155e1457dc02b5e14ea5", "status": "affected", "version": "9e978741488261e117bb50e5dfcf8e4080990958", "versionType": "git"}, {"lessThan": "ab9ea5c943c7e780124e75b7ffad9f1c752b2579", "status": "affected", "version": "9e978741488261e117bb50e5dfcf8e4080990958", "versionType": "git"}, {"lessThan": "dca6e08c923a44d2d66b955e03dd57a3a38c2b94", "status": "affected", "version": "9e978741488261e117bb50e5dfcf8e4080990958", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/xe/xe_pt.c", "drivers/gpu/drm/xe/xe_svm.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/userptr: Hold notifier_lock for write on inject test path\n\nWhen CONFIG_DRM_XE_USERPTR_INVAL_INJECT=y, xe_pt_svm_userptr_pre_commit()\nruns vma_check_userptr() with the svm notifier_lock taken for read. The\ntest injection causes vma_check_userptr() to call\nxe_vma_userptr_force_invalidate(), which feeds into\nxe_vma_userptr_do_inval() with drm_gpusvm_ctx.in_notifier=true. That\nflag tells drm_gpusvm_unmap_pages() the caller already holds\nnotifier_lock for write and only asserts the mode. Because the caller\nactually holds it for read, the assertion fires:\n\n WARNING: drivers/gpu/drm/drm_gpusvm.c:1669 at \\\n drm_gpusvm_unmap_pages+0xd4/0x130 [drm_gpusvm_helper]\n Call Trace:\n xe_vma_userptr_do_inval+0x40d/0xfd0 [xe]\n xe_vma_userptr_invalidate_pass1+0x3e6/0x8d0 [xe]\n xe_vma_userptr_force_invalidate+0xde/0x290 [xe]\n vma_check_userptr.constprop.0+0x1c6/0x220 [xe]\n xe_pt_svm_userptr_pre_commit+0x6a3/0xc60 [xe]\n ...\n xe_vm_bind_ioctl+0x3a0a/0x4480 [xe]\n\nAcquire notifier_lock for write in pre-commit when the inject Kconfig\nis enabled, via new helpers xe_pt_svm_userptr_notifier_lock()/_unlock().\nRename xe_svm_assert_held_read() to\nxe_svm_assert_held_read_or_inject_write() so it asserts the correct\nmode under each build configuration. Production builds\n(CONFIG_DRM_XE_USERPTR_INVAL_INJECT=n) keep the existing read-mode\nbehavior bit-for-bit.\n\n(cherry picked from commit 80ccbd97ffee8ad2e73167d826fe7be548364365)"}], "id": "CVE-2026-80606", "lastModified": "2026-08-28T08:16:44.573", "metrics": {}, "published": "2026-08-28T08:16:44.573", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab9ea5c943c7e780124e75b7ffad9f1c752b2579"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dca6e08c923a44d2d66b955e03dd57a3a38c2b94"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f9a9abd7bbdab3dfe1b1155e1457dc02b5e14ea5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9e978741488261e117bb50e5dfcf8e4080990958,f9a9abd7bbdab3dfe1b1155e1457dc02b5e14ea5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9e978741488261e117bb50e5dfcf8e4080990958,ab9ea5c943c7e780124e75b7ffad9f1c752b2579)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9e978741488261e117bb50e5dfcf8e4080990958,dca6e08c923a44d2d66b955e03dd57a3a38c2b94)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-28T10:00:06.044742+00:00", "updated": "2026-08-28T10:00:06.044775+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}