{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68264", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.378Z", "datePublished": "2026-08-10T12:01:38.686Z", "dateUpdated": "2026-08-10T12:01:38.686Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T12:01:38.686Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/pt: Reset current_op in xe_pt_update_ops_init()\n\nxe_pt_update_ops_init() fails to reset current_op to 0. On the\nvm_bind path, ops_execute() calls xe_pt_update_ops_prepare() inside\nthe xe_validation_guard() / drm_exec_until_all_locked() loop. When\nthat loop retries due to lock contention or OOM eviction\n(drm_exec_retry_on_contention() / xe_validation_retry_on_oom()),\nxe_pt_update_ops_prepare() runs again on the same vops, and each\ncall to bind_op_prepare() increments current_op without resetting it.\n\nAfter N retries current_op exceeds the array size allocated by\nxe_vma_ops_alloc(), causing an out-of-bounds write into\nSLUB-poisoned memory and a subsequent UAF crash in\nxe_migrate_update_pgtables_cpu() when reading the corrupted pt_op->bind.\n\nAlso reset needs_svm_lock and needs_invalidation which are derived in\nthe same prepare pass and would otherwise cause wrong migrate ops\nselection and redundant TLB invalidation on retry.\n\nFix this by resetting current_op, needs_svm_lock and needs_invalidation\nin xe_pt_update_ops_init().\n\nv2 (Matt):\n - Add details in commit message.\n - Add Fixes tag and Cc to stable@vger.kernel.org\n\n(cherry picked from commit 046045543e530605c441063535e7dca0075369a6)"}], "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"], "versions": [{"version": "e8babb280b5ef904df54b3a90e5a7e3a9600c4a9", "lessThan": "be5c39730ab8f1dfe59983bf7d8e3705541d1fee", "status": "affected", "versionType": "git"}, {"version": "e8babb280b5ef904df54b3a90e5a7e3a9600c4a9", "lessThan": "157b1e3384d7d37f59c0c2b2ff2af8f557db1daa", "status": "affected", "versionType": "git"}, {"version": "e8babb280b5ef904df54b3a90e5a7e3a9600c4a9", "lessThan": "90e4fd331b980259c40118d05b89b0ec514e7c48", "status": "affected", "versionType": "git"}, {"version": "e8babb280b5ef904df54b3a90e5a7e3a9600c4a9", "lessThan": "6384271ac1ac0099198d15df79212a19ebdb929d", "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"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc4", "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": "6.12", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.2-rc4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/be5c39730ab8f1dfe59983bf7d8e3705541d1fee"}, {"url": "https://git.kernel.org/stable/c/157b1e3384d7d37f59c0c2b2ff2af8f557db1daa"}, {"url": "https://git.kernel.org/stable/c/90e4fd331b980259c40118d05b89b0ec514e7c48"}, {"url": "https://git.kernel.org/stable/c/6384271ac1ac0099198d15df79212a19ebdb929d"}], "title": "drm/xe/pt: Reset current_op in xe_pt_update_ops_init()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e8babb280b5ef904df54b3a90e5a7e3a9600c4a9,be5c39730ab8f1dfe59983bf7d8e3705541d1fee]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e8babb280b5ef904df54b3a90e5a7e3a9600c4a9,157b1e3384d7d37f59c0c2b2ff2af8f557db1daa]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e8babb280b5ef904df54b3a90e5a7e3a9600c4a9,90e4fd331b980259c40118d05b89b0ec514e7c48]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e8babb280b5ef904df54b3a90e5a7e3a9600c4a9,6384271ac1ac0099198d15df79212a19ebdb929d]"}}], "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": "generic", "value": "6.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.103,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.44,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc4,*]"}}], "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": "2026-08-10T17:45:04.459702+00:00", "updated": "2026-08-10T19:45:04.248792+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-119", "CWE-416"]}