{"api_version":"1","generated_at":"2026-08-16T15:16:01+00:00","cve":"CVE-2026-72358","urls":{"html":"https://cve.report/CVE-2026-72358","api":"https://cve.report/api/cve/CVE-2026-72358.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72358","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72358"},"summary":{"title":"drm/xe/pt: prevent invalid cursor access for purged BOs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/pt: prevent invalid cursor access for purged BOs\n\nDuring a page table walk for binding, xe_pt_stage_bind() explicitly\nskips initializing the xe_res_cursor for purged BOs, treating them\nsimilarly to NULL VMAs by only setting the cursor size.\n\nHowever, xe_pt_hugepte_possible() and xe_pt_scan_64K() did not check\nif the BO was purged before attempting to walk the cursor using\nxe_res_dma() and xe_res_next(). Because the cursor was left\nuninitialized for purged BOs, this falls through and triggers\nwarnings like:\n\n  WARNING: drivers/gpu/drm/xe/xe_res_cursor.h:274 at xe_res_next\n\nFix this by explicitly checking if the BO is purged in both\nxe_pt_hugepte_possible() and xe_pt_scan_64K(), returning early just\nas we do for NULL VMAs, avoiding the invalid cursor accesses entirely.\n\nAs a precaution, also zero-initialize the cursor in xe_pt_stage_bind()\nto ensure we don't pass garbage data into the page table walkers\nif we ever hit a similar edge case in the future.\n\n(cherry picked from commit 4c7b9c6ece32440e5a435a92076d049450cd2d2e)","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:09","updated_at":"2026-08-15 06:22:09"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2b6b3f98d0e93856bee38699b783c71cb0e9d67f","name":"https://git.kernel.org/stable/c/2b6b3f98d0e93856bee38699b783c71cb0e9d67f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8a0fb57675be578c4db19deb4298ed08a70f0f1a","name":"https://git.kernel.org/stable/c/8a0fb57675be578c4db19deb4298ed08a70f0f1a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72358","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72358","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ad9843aac91a1eda12912a4922042ea04cfc29dc 2b6b3f98d0e93856bee38699b783c71cb0e9d67f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ad9843aac91a1eda12912a4922042ea04cfc29dc 8a0fb57675be578c4db19deb4298ed08a70f0f1a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.1","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"72358","cve":"CVE-2026-72358","epss":"0.001980000","percentile":"0.098750000","score_date":"2026-08-15","updated_at":"2026-08-16 00:00:31"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/xe/xe_pt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2b6b3f98d0e93856bee38699b783c71cb0e9d67f","status":"affected","version":"ad9843aac91a1eda12912a4922042ea04cfc29dc","versionType":"git"},{"lessThan":"8a0fb57675be578c4db19deb4298ed08a70f0f1a","status":"affected","version":"ad9843aac91a1eda12912a4922042ea04cfc29dc","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/xe/xe_pt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.1"},{"lessThan":"7.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"7.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc2","versionStartIncluding":"7.1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/pt: prevent invalid cursor access for purged BOs\n\nDuring a page table walk for binding, xe_pt_stage_bind() explicitly\nskips initializing the xe_res_cursor for purged BOs, treating them\nsimilarly to NULL VMAs by only setting the cursor size.\n\nHowever, xe_pt_hugepte_possible() and xe_pt_scan_64K() did not check\nif the BO was purged before attempting to walk the cursor using\nxe_res_dma() and xe_res_next(). Because the cursor was left\nuninitialized for purged BOs, this falls through and triggers\nwarnings like:\n\n  WARNING: drivers/gpu/drm/xe/xe_res_cursor.h:274 at xe_res_next\n\nFix this by explicitly checking if the BO is purged in both\nxe_pt_hugepte_possible() and xe_pt_scan_64K(), returning early just\nas we do for NULL VMAs, avoiding the invalid cursor accesses entirely.\n\nAs a precaution, also zero-initialize the cursor in xe_pt_stage_bind()\nto ensure we don't pass garbage data into the page table walkers\nif we ever hit a similar edge case in the future.\n\n(cherry picked from commit 4c7b9c6ece32440e5a435a92076d049450cd2d2e)"}],"providerMetadata":{"dateUpdated":"2026-08-15T05:55:58.783Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2b6b3f98d0e93856bee38699b783c71cb0e9d67f"},{"url":"https://git.kernel.org/stable/c/8a0fb57675be578c4db19deb4298ed08a70f0f1a"}],"title":"drm/xe/pt: prevent invalid cursor access for purged BOs","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72358","datePublished":"2026-08-15T05:55:58.783Z","dateReserved":"2026-08-09T03:40:39.921Z","dateUpdated":"2026-08-15T05:55:58.783Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:09","lastModifiedDate":"2026-08-15 06:22:09","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72358","Ordinal":"1","Title":"drm/xe/pt: prevent invalid cursor access for purged BOs","CVE":"CVE-2026-72358","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72358","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/pt: prevent invalid cursor access for purged BOs\n\nDuring a page table walk for binding, xe_pt_stage_bind() explicitly\nskips initializing the xe_res_cursor for purged BOs, treating them\nsimilarly to NULL VMAs by only setting the cursor size.\n\nHowever, xe_pt_hugepte_possible() and xe_pt_scan_64K() did not check\nif the BO was purged before attempting to walk the cursor using\nxe_res_dma() and xe_res_next(). Because the cursor was left\nuninitialized for purged BOs, this falls through and triggers\nwarnings like:\n\n  WARNING: drivers/gpu/drm/xe/xe_res_cursor.h:274 at xe_res_next\n\nFix this by explicitly checking if the BO is purged in both\nxe_pt_hugepte_possible() and xe_pt_scan_64K(), returning early just\nas we do for NULL VMAs, avoiding the invalid cursor accesses entirely.\n\nAs a precaution, also zero-initialize the cursor in xe_pt_stage_bind()\nto ensure we don't pass garbage data into the page table walkers\nif we ever hit a similar edge case in the future.\n\n(cherry picked from commit 4c7b9c6ece32440e5a435a92076d049450cd2d2e)","Type":"Description","Title":"drm/xe/pt: prevent invalid cursor access for purged BOs"}]}}}