CVE-2026-53282

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53282", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.396Z", "datePublished": "2026-06-26T19:40:43.754Z", "dateUpdated": "2026-06-26T19:40:43.754Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-26T19:40:43.754Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/kexec: Push kjump return address even for non-kjump kexec\n\nThe version of purgatory code shipped by kexec-tools attempts to look above\nthe top of its stack to find a return address for a kjump, even in a non-kjump\nkexec.\n\nAfter the commit in Fixes: the word above the stack might not be there,\nleading to a fault (which is at least now caught by my exception-handling code\nin kexec).\n\nThat commit fixed things for the actual kjump path, but no longer\n\"gratuitously\" pushes the unused return address to the stack in the non-kjump\npath. Put that *back* in the non-kjump path, to prevent purgatory from\ncrashing when trying to access it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kernel/relocate_kernel_64.S"], "versions": [{"version": "2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e", "lessThan": "b0bd7a850e1f082560959707dbf57b0402071646", "status": "affected", "versionType": "git"}, {"version": "2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e", "lessThan": "7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8c", "status": "affected", "versionType": "git"}, {"version": "2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e", "lessThan": "786a45757dcdf8f2beb9d4a6db605db16c18b2b4", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/x86/kernel/relocate_kernel_64.S"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "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": "6.14", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b0bd7a850e1f082560959707dbf57b0402071646"}, {"url": "https://git.kernel.org/stable/c/7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8c"}, {"url": "https://git.kernel.org/stable/c/786a45757dcdf8f2beb9d4a6db605db16c18b2b4"}], "title": "x86/kexec: Push kjump return address even for non-kjump kexec", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/x86/kernel/relocate_kernel_64.S"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "b0bd7a850e1f082560959707dbf57b0402071646", "status": "affected", "version": "2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e", "versionType": "git"}, {"lessThan": "7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8c", "status": "affected", "version": "2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e", "versionType": "git"}, {"lessThan": "786a45757dcdf8f2beb9d4a6db605db16c18b2b4", "status": "affected", "version": "2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/x86/kernel/relocate_kernel_64.S"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.14"}, {"lessThan": "6.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.33", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E72B69F1-A4CC-4157-A359-3CCD7EEC2ED3", "versionEndExcluding": "6.18.33", "versionStartIncluding": "6.14", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4", "versionEndExcluding": "7.0.10", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/kexec: Push kjump return address even for non-kjump kexec\n\nThe version of purgatory code shipped by kexec-tools attempts to look above\nthe top of its stack to find a return address for a kjump, even in a non-kjump\nkexec.\n\nAfter the commit in Fixes: the word above the stack might not be there,\nleading to a fault (which is at least now caught by my exception-handling code\nin kexec).\n\nThat commit fixed things for the actual kjump path, but no longer\n\"gratuitously\" pushes the unused return address to the stack in the non-kjump\npath. Put that *back* in the non-kjump path, to prevent purgatory from\ncrashing when trying to access it."}], "id": "CVE-2026-53282", "lastModified": "2026-07-08T03:56:56.320", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-06-26T20:17:20.063", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/786a45757dcdf8f2beb9d4a6db605db16c18b2b4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b0bd7a850e1f082560959707dbf57b0402071646"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: x86/kexec: Push kjump return address even for non-kjump kexec", "id": "2493774", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493774"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in the Linux kernel's kexec functionality, specifically within the purgatory code used by kexec-tools. This vulnerability occurs when the purgatory code attempts to locate a return address on the stack during a non-kjump kexec operation, but the address is not present. This can lead to a system fault or crash, impacting system availability."], "name": "CVE-2026-53282", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53282\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53282\nhttps://lore.kernel.org/linux-cve-announce/2026062615-CVE-2026-53282-2ffa@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e,b0bd7a850e1f082560959707dbf57b0402071646)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e,7dba9631faa2ee0785e8c2bf0e3d90a05f26dd8c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2cacf7f23a024ab1fdc603ca6a4f4c8b2de9f64e,786a45757dcdf8f2beb9d4a6db605db16c18b2b4)"}}], "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": "6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"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": "2026-06-26T21:30:06.223259+00:00", "updated": "2026-08-12T09:30:01.063644+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}