{"id":"CVE-2026-98545","revision":"112bc21d2e76448ab5fd2b6427f31013","records":[{"revision":"112bc21d2e76448ab5fd2b6427f31013","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98545","aliases":[],"title":"ata: libata-scsi: bound the ATA passthru sense descriptor writes","description":"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.","state":0,"publishedAt":"2026-10-18T15:18:13.949+00:00","modifiedAt":"2026-10-19T09:21:28.453+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/ata/libata-scsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"ce477199c53e3db5a096981c565e232498ddeae4\",\n                            \"lessThan\": \"c698f6deabf680f8f4a1727ef2dc80fe78815fbf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"97981926224afe17ba3e22e0c2b7dd8b516ee574\",\n                            \"lessThan\": \"d9a7147b93624660626cd7c3b1143715699e1f5c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"97981926224afe17ba3e22e0c2b7dd8b516ee574\",\n                            \"lessThan\": \"1603abb0c50420e97cf4a1feddbd5e183c5fdf86\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"97981926224afe17ba3e22e0c2b7dd8b516ee574\",\n                            \"lessThan\": \"80fbb0bc4d11683c88f2f9d3997ea02fcada5408\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"97981926224afe17ba3e22e0c2b7dd8b516ee574\",\n                            \"lessThan\": \"80320b278fea07ffcda3f57b67b61658e0a4e1ca\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"67d9d0b6ae4aaf2c4cef103a96a145c7fdfb15f8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.6.44\",\n                            \"lessThan\": \"6.6.158\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.10.3\",\n                            \"lessThan\": \"6.11\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/ata/libata-scsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.55\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/c698f6deabf680f8f4a1727ef2dc80fe78815fbf","https://git.kernel.org/stable/c/d9a7147b93624660626cd7c3b1143715699e1f5c","https://git.kernel.org/stable/c/1603abb0c50420e97cf4a1feddbd5e183c5fdf86","https://git.kernel.org/stable/c/80fbb0bc4d11683c88f2f9d3997ea02fcada5408","https://git.kernel.org/stable/c/80320b278fea07ffcda3f57b67b61658e0a4e1ca"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98545","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98545","identifiers":["CVE-2026-98545"]},"retained":false,"historicalAffected":[]}],"coverage":[]}