{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72426", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.928Z", "datePublished": "2026-08-15T05:56:43.575Z", "dateUpdated": "2026-08-15T05:56:43.575Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:56:43.575Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Preserve pointer spill metadata during half-slot cleanup\n\n__clean_func_state() cleans dead stack slots in 4-byte halves. When the\nhigh half of a STACK_SPILL slot is dead and the low half remains live,\ncleanup converts the live low half to STACK_MISC or STACK_ZERO and clears\nthe saved spilled_ptr metadata.\n\nThat conversion is safe only for scalar spills. For a pointer spill, this\nmetadata clear lets a later 32-bit fill from the still-live half avoid the\nnormal non-scalar register-fill check and be treated as an ordinary scalar\nstack read.\n\nLeave non-scalar spill slots intact in this half-live shape. This is\nconservative for pruning and preserves the existing\ncheck_stack_read_fixed_off() rejection path for partial fills from pointer\nspills."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/states.c"], "versions": [{"version": "be23266b4a08540aa43d8503a2ea10247c8daebe", "lessThan": "0f9278b22cda6fd2525049930157b79b4036b4ef", "status": "affected", "versionType": "git"}, {"version": "be23266b4a08540aa43d8503a2ea10247c8daebe", "lessThan": "3a354149bceacadbcf7d7b4766f5ef26a85892ab", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/states.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "7.1", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0f9278b22cda6fd2525049930157b79b4036b4ef"}, {"url": "https://git.kernel.org/stable/c/3a354149bceacadbcf7d7b4766f5ef26a85892ab"}], "title": "bpf: Preserve pointer spill metadata during half-slot cleanup", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/bpf/states.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0f9278b22cda6fd2525049930157b79b4036b4ef", "status": "affected", "version": "be23266b4a08540aa43d8503a2ea10247c8daebe", "versionType": "git"}, {"lessThan": "3a354149bceacadbcf7d7b4766f5ef26a85892ab", "status": "affected", "version": "be23266b4a08540aa43d8503a2ea10247c8daebe", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/bpf/states.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-rc1", "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\nbpf: Preserve pointer spill metadata during half-slot cleanup\n\n__clean_func_state() cleans dead stack slots in 4-byte halves. When the\nhigh half of a STACK_SPILL slot is dead and the low half remains live,\ncleanup converts the live low half to STACK_MISC or STACK_ZERO and clears\nthe saved spilled_ptr metadata.\n\nThat conversion is safe only for scalar spills. For a pointer spill, this\nmetadata clear lets a later 32-bit fill from the still-live half avoid the\nnormal non-scalar register-fill check and be treated as an ordinary scalar\nstack read.\n\nLeave non-scalar spill slots intact in this half-live shape. This is\nconservative for pruning and preserves the existing\ncheck_stack_read_fixed_off() rejection path for partial fills from pointer\nspills."}], "id": "CVE-2026-72426", "lastModified": "2026-08-15T06:22:16.427", "metrics": {}, "published": "2026-08-15T06:22:16.427", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0f9278b22cda6fd2525049930157b79b4036b4ef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3a354149bceacadbcf7d7b4766f5ef26a85892ab"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}