CVE-2026-98545

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98545", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.356Z", "datePublished": "2026-10-18T15:18:13.949Z", "dateUpdated": "2026-10-19T09:21:28.453Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:21:28.453Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-scsi: bound the ATA passthru sense descriptor writes\n\nWhen an ATA PASS-THROUGH command to an ATAPI device fails, the sense\nbuffer holds the device's REQUEST SENSE reply, and\nata_scsi_set_passthru_sense_fields() trusts its additional length\nbyte, sb[7], when adding the ATA Status Return descriptor. A faulty\nor malicious device can use that to make the kernel read and write\npast the 96-byte buffer in three ways:\n\n- scsi_sense_desc_find() is passed sb[7] + 8 as the buffer length, so\n its clamp against sb[7] does nothing and the walk runs off the end.\n- A type-9 descriptor found near the end is filled in unchecked.\n- A new descriptor at sb[8 + len] needs len + 22 bytes, not len + 14,\n so len 75..82 writes up to 8 bytes past the end.\n\nReproduced with KASAN under qemu, with the emulated ATAPI REQUEST SENSE\nreply patched:\n\n BUG: KASAN: slab-out-of-bounds in scsi_sense_desc_find+0x1a5/0x210\n BUG: KASAN: slab-out-of-bounds in ata_scsi_qc_complete+0x1a15/0x1a50\n\nBoth are gone with this patch, and a valid descriptor is still filled\nin."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/ata/libata-scsi.c"], "versions": [{"version": "ce477199c53e3db5a096981c565e232498ddeae4", "lessThan": "c698f6deabf680f8f4a1727ef2dc80fe78815fbf", "status": "affected", "versionType": "git"}, {"version": "97981926224afe17ba3e22e0c2b7dd8b516ee574", "lessThan": "d9a7147b93624660626cd7c3b1143715699e1f5c", "status": "affected", "versionType": "git"}, {"version": "97981926224afe17ba3e22e0c2b7dd8b516ee574", "lessThan": "1603abb0c50420e97cf4a1feddbd5e183c5fdf86", "status": "affected", "versionType": "git"}, {"version": "97981926224afe17ba3e22e0c2b7dd8b516ee574", "lessThan": "80fbb0bc4d11683c88f2f9d3997ea02fcada5408", "status": "affected", "versionType": "git"}, {"version": "97981926224afe17ba3e22e0c2b7dd8b516ee574", "lessThan": "80320b278fea07ffcda3f57b67b61658e0a4e1ca", "status": "affected", "versionType": "git"}, {"version": "67d9d0b6ae4aaf2c4cef103a96a145c7fdfb15f8", "status": "affected", "versionType": "git"}, {"version": "6.6.44", "lessThan": "6.6.158", "status": "affected", "versionType": "semver"}, {"version": "6.10.3", "lessThan": "6.11", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/ata/libata-scsi.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.55", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.9", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.6.44", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.55"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.2.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c698f6deabf680f8f4a1727ef2dc80fe78815fbf"}, {"url": "https://git.kernel.org/stable/c/d9a7147b93624660626cd7c3b1143715699e1f5c"}, {"url": "https://git.kernel.org/stable/c/1603abb0c50420e97cf4a1feddbd5e183c5fdf86"}, {"url": "https://git.kernel.org/stable/c/80fbb0bc4d11683c88f2f9d3997ea02fcada5408"}, {"url": "https://git.kernel.org/stable/c/80320b278fea07ffcda3f57b67b61658e0a4e1ca"}], "title": "ata: libata-scsi: bound the ATA passthru sense descriptor writes", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/ata/libata-scsi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c698f6deabf680f8f4a1727ef2dc80fe78815fbf", "status": "affected", "version": "ce477199c53e3db5a096981c565e232498ddeae4", "versionType": "git"}, {"lessThan": "d9a7147b93624660626cd7c3b1143715699e1f5c", "status": "affected", "version": "97981926224afe17ba3e22e0c2b7dd8b516ee574", "versionType": "git"}, {"lessThan": "1603abb0c50420e97cf4a1feddbd5e183c5fdf86", "status": "affected", "version": "97981926224afe17ba3e22e0c2b7dd8b516ee574", "versionType": "git"}, {"lessThan": "80fbb0bc4d11683c88f2f9d3997ea02fcada5408", "status": "affected", "version": "97981926224afe17ba3e22e0c2b7dd8b516ee574", "versionType": "git"}, {"lessThan": "80320b278fea07ffcda3f57b67b61658e0a4e1ca", "status": "affected", "version": "97981926224afe17ba3e22e0c2b7dd8b516ee574", "versionType": "git"}, {"status": "affected", "version": "67d9d0b6ae4aaf2c4cef103a96a145c7fdfb15f8", "versionType": "git"}, {"lessThan": "6.6.158", "status": "affected", "version": "6.6.44", "versionType": "semver"}, {"lessThan": "6.11", "status": "affected", "version": "6.10.3", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/ata/libata-scsi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.55", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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\nata: libata-scsi: bound the ATA passthru sense descriptor writes\n\nWhen an ATA PASS-THROUGH command to an ATAPI device fails, the sense\nbuffer holds the device's REQUEST SENSE reply, and\nata_scsi_set_passthru_sense_fields() trusts its additional length\nbyte, sb[7], when adding the ATA Status Return descriptor. A faulty\nor malicious device can use that to make the kernel read and write\npast the 96-byte buffer in three ways:\n\n- scsi_sense_desc_find() is passed sb[7] + 8 as the buffer length, so\n its clamp against sb[7] does nothing and the walk runs off the end.\n- A type-9 descriptor found near the end is filled in unchecked.\n- A new descriptor at sb[8 + len] needs len + 22 bytes, not len + 14,\n so len 75..82 writes up to 8 bytes past the end.\n\nReproduced with KASAN under qemu, with the emulated ATAPI REQUEST SENSE\nreply patched:\n\n BUG: KASAN: slab-out-of-bounds in scsi_sense_desc_find+0x1a5/0x210\n BUG: KASAN: slab-out-of-bounds in ata_scsi_qc_complete+0x1a15/0x1a50\n\nBoth are gone with this patch, and a valid descriptor is still filled\nin."}], "id": "CVE-2026-98545", "lastModified": "2026-10-19T10:19:10.470", "metrics": {}, "published": "2026-10-18T16:17:06.403", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1603abb0c50420e97cf4a1feddbd5e183c5fdf86"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/80320b278fea07ffcda3f57b67b61658e0a4e1ca"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/80fbb0bc4d11683c88f2f9d3997ea02fcada5408"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c698f6deabf680f8f4a1727ef2dc80fe78815fbf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d9a7147b93624660626cd7c3b1143715699e1f5c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ata: libata-scsi: bound the ATA passthru sense descriptor writes", "id": "2554942", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2554942"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nata: libata-scsi: bound the ATA passthru sense descriptor writes\nWhen an ATA PASS-THROUGH command to an ATAPI device fails, the sense\nbuffer holds the device's REQUEST SENSE reply, and\nata_scsi_set_passthru_sense_fields() trusts its additional length\nbyte, sb[7], when adding the ATA Status Return descriptor. A faulty\nor malicious device can use that to make the kernel read and write\npast the 96-byte buffer in three ways:\n- scsi_sense_desc_find() is passed sb[7] + 8 as the buffer length, so\nits clamp against sb[7] does nothing and the walk runs off the end.\n- A type-9 descriptor found near the end is filled in unchecked.\n- A new descriptor at sb[8 + len] needs len + 22 bytes, not len + 14,\nso len 75..82 writes up to 8 bytes past the end.\nReproduced with KASAN under qemu, with the emulated ATAPI REQUEST SENSE\nreply patched:\nBUG: KASAN: slab-out-of-bounds in scsi_sense_desc_find+0x1a5/0x210\nBUG: KASAN: slab-out-of-bounds in ata_scsi_qc_complete+0x1a15/0x1a50\nBoth are gone with this patch, and a valid descriptor is still filled\nin.", "A flaw was found in the Linux kernel's libata SCSI subsystem. When processing ATA pass-through commands to an ATAPI storage device, the kernel fails to properly validate the length byte returned in the device's sense response buffer. A malicious or faulty device can exploit this issue to trigger out-of-bounds memory reads and writes, leading to memory corruption, system instability, or a Denial of Service (DoS)."], "name": "CVE-2026-98545", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98545\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98545\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98545.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ce477199c53e3db5a096981c565e232498ddeae4,c698f6deabf680f8f4a1727ef2dc80fe78815fbf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[97981926224afe17ba3e22e0c2b7dd8b516ee574,d9a7147b93624660626cd7c3b1143715699e1f5c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[97981926224afe17ba3e22e0c2b7dd8b516ee574,1603abb0c50420e97cf4a1feddbd5e183c5fdf86)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[97981926224afe17ba3e22e0c2b7dd8b516ee574,80fbb0bc4d11683c88f2f9d3997ea02fcada5408)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[97981926224afe17ba3e22e0c2b7dd8b516ee574,80320b278fea07ffcda3f57b67b61658e0a4e1ca)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "67d9d0b6ae4aaf2c4cef103a96a145c7fdfb15f8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.44,6.6.158)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.10.3,6.11)"}}], "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": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.55,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.9,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc5,*]"}}], "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": "2026-10-18T17:30:16.958766+00:00", "updated": "2026-10-22T22:30:13.439796+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}