{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53090", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.384Z", "datePublished": "2026-06-24T16:30:29.413Z", "dateUpdated": "2026-06-28T06:39:12.516Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:39:12.516Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix ld_{abs,ind} failure path analysis in subprogs\n\nUsage of ld_{abs,ind} instructions got extended into subprogs some time\nago via commit 09b28d76eac4 (\"bpf: Add abnormal return checks.\"). These\nare only allowed in subprograms when the latter are BTF annotated and\nhave scalar return types.\n\nThe code generator in bpf_gen_ld_abs() has an abnormal exit path (r0=0 +\nexit) from legacy cBPF times. While the enforcement is on scalar return\ntypes, the verifier must also simulate the path of abnormal exit if the\npacket data load via ld_{abs,ind} failed.\n\nThis is currently not the case. Fix it by having the verifier simulate\nboth success and failure paths, and extend it in similar ways as we do\nfor tail calls. The success path (r0=unknown, continue to next insn) is\npushed onto stack for later validation and the r0=0 and return to the\ncaller is done on the fall-through side."}], "metrics": [{"cvssV3_1": {"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"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/verifier.c"], "versions": [{"version": "09b28d76eac48e922dc293da1aa2b2b85c32aeee", "lessThan": "d846d83bdacbd8f14fc45c63b8c1d22608452e1c", "status": "affected", "versionType": "git"}, {"version": "09b28d76eac48e922dc293da1aa2b2b85c32aeee", "lessThan": "ee861486e377edc55361c08dcbceab3f6b6577bd", "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/verifier.c"], "versions": [{"version": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "5.10", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d846d83bdacbd8f14fc45c63b8c1d22608452e1c"}, {"url": "https://git.kernel.org/stable/c/ee861486e377edc55361c08dcbceab3f6b6577bd"}], "title": "bpf: Fix ld_{abs,ind} failure path analysis in subprogs", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: bpf: Fix ld_{abs,ind} failure path analysis in subprogs", "id": "2492305", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492305"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-253", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbpf: Fix ld_{abs,ind} failure path analysis in subprogs\nUsage of ld_{abs,ind} instructions got extended into subprogs some time\nago via commit 09b28d76eac4 (\"bpf: Add abnormal return checks.\"). These\nare only allowed in subprograms when the latter are BTF annotated and\nhave scalar return types.\nThe code generator in bpf_gen_ld_abs() has an abnormal exit path (r0=0 +\nexit) from legacy cBPF times. While the enforcement is on scalar return\ntypes, the verifier must also simulate the path of abnormal exit if the\npacket data load via ld_{abs,ind} failed.\nThis is currently not the case. Fix it by having the verifier simulate\nboth success and failure paths, and extend it in similar ways as we do\nfor tail calls. The success path (r0=unknown, continue to next insn) is\npushed onto stack for later validation and the r0=0 and return to the\ncaller is done on the fall-through side.", "A flaw was found in the Linux kernel's Berkeley Packet Filter (BPF) verifier. When `ld_{abs,ind}` instructions are used in BPF subprograms, the verifier fails to correctly simulate the abnormal exit path if packet data loading fails. This oversight could lead to unexpected behavior or bypass of security checks within the BPF execution environment."], "name": "CVE-2026-53090", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53090\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53090\nhttps://lore.kernel.org/linux-cve-announce/2026062409-CVE-2026-53090-f634@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[09b28d76eac48e922dc293da1aa2b2b85c32aeee,d846d83bdacbd8f14fc45c63b8c1d22608452e1c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[09b28d76eac48e922dc293da1aa2b2b85c32aeee,ee861486e377edc55361c08dcbceab3f6b6577bd)"}}], "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": "5.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-06-24T20:15:07.668623+00:00", "updated": "2026-06-28T15:00:12.196965+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}