{"api_version":"1","generated_at":"2026-10-26T06:23:01+00:00","cve":"CVE-2026-98545","urls":{"html":"https://cve.report/CVE-2026-98545","api":"https://cve.report/api/cve/CVE-2026-98545.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98545","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98545"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:06","updated_at":"2026-10-18 16:17:06"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/80320b278fea07ffcda3f57b67b61658e0a4e1ca","name":"https://git.kernel.org/stable/c/80320b278fea07ffcda3f57b67b61658e0a4e1ca","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1603abb0c50420e97cf4a1feddbd5e183c5fdf86","name":"https://git.kernel.org/stable/c/1603abb0c50420e97cf4a1feddbd5e183c5fdf86","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/80fbb0bc4d11683c88f2f9d3997ea02fcada5408","name":"https://git.kernel.org/stable/c/80fbb0bc4d11683c88f2f9d3997ea02fcada5408","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c698f6deabf680f8f4a1727ef2dc80fe78815fbf","name":"https://git.kernel.org/stable/c/c698f6deabf680f8f4a1727ef2dc80fe78815fbf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d9a7147b93624660626cd7c3b1143715699e1f5c","name":"https://git.kernel.org/stable/c/d9a7147b93624660626cd7c3b1143715699e1f5c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98545","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98545","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ce477199c53e3db5a096981c565e232498ddeae4 c698f6deabf680f8f4a1727ef2dc80fe78815fbf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97981926224afe17ba3e22e0c2b7dd8b516ee574 d9a7147b93624660626cd7c3b1143715699e1f5c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97981926224afe17ba3e22e0c2b7dd8b516ee574 1603abb0c50420e97cf4a1feddbd5e183c5fdf86 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97981926224afe17ba3e22e0c2b7dd8b516ee574 80fbb0bc4d11683c88f2f9d3997ea02fcada5408 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 97981926224afe17ba3e22e0c2b7dd8b516ee574 80320b278fea07ffcda3f57b67b61658e0a4e1ca git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 67d9d0b6ae4aaf2c4cef103a96a145c7fdfb15f8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.44 6.6.158 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.10.3 6.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.158 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.112 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.55 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.9 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.158","versionStartIncluding":"6.6.44","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.55","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.9","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:21:28.453Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98545","datePublished":"2026-10-18T15:18:13.949Z","dateReserved":"2026-09-25T10:25:14.356Z","dateUpdated":"2026-10-19T09:21:28.453Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:06","lastModifiedDate":"2026-10-18 16:17:06","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98545","Ordinal":"1","Title":"ata: libata-scsi: bound the ATA passthru sense descriptor writes","CVE":"CVE-2026-98545","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98545","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"ata: libata-scsi: bound the ATA passthru sense descriptor writes"}]}}}