248 lines
12 KiB
JSON
248 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-98262",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-09-25T10:25:14.332Z",
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"datePublished": "2026-10-06T08:45:26.118Z",
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"dateUpdated": "2026-10-19T09:16:33.319Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T09:16:33.319Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: libahci: clear PxCLBU and PxFBU for AHCI_HFLAG_32BIT_ONLY\n\nA user reported that commit 105c42566a55 (\"ata: ahci: force 32-bit DMA for\nJMicron JMB582/JMB585\") made the JMicron JMB585 unusable on his board.\n\nThe failure is seen as soon as the ahci driver is probed, and booting with\niommu=off does not solve the problem.\n\nLooking at the AHCI specification, PxCLBU and PxFBU are both read only '0'\nfor HBAs that do not support 64-bit addressing.\n\nFor HBAs that do support 64-bit addressing, the registers are read write,\nwith a reset value that is Implementation Specific.\n\nWhen using the AHCI_HFLAG_32BIT_ONLY flag, the HBA does support 64-bit\naddressing, and a 32-bit DMA mask is set by simply clearing HOST_CAP_64.\nThus, in this case, we need to explicitly clear the registers to 0."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/ata/libahci.c"
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],
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"versions": [
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{
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"version": "c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c",
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"lessThan": "0191c9ff23ef1678dbfb5ad253a2dee92feb5d71",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c",
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"lessThan": "8f510f68208a1f673d7c7234a687be4671490e9c",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c",
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"lessThan": "4719424bb7cb9f20b73986bcb72dd528f0e5c6eb",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c",
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"lessThan": "a5a8b4737f68bbac8aa0685af0c8921e6003c22b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c",
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"lessThan": "b28a17d4a9bb0aa38b48681c3927b012ba40eabe",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c",
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"lessThan": "b691a3e244278362e552439d6d3ee5a5d3703488",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c",
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"lessThan": "7912ad8fb5233bb8cfe21d50df639c7f4854ff9d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "c7a42156d99bcea7f8173ba7a6034bbaa2ecb77c",
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"lessThan": "82e47533221d4746947b74d2e79a478c36c6433a",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/ata/libahci.c"
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],
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"versions": [
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{
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"version": "2.6.22",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.22",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.271",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.222",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.189",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.158",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.112",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.54",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.8",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.22",
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"versionEndExcluding": "5.10.271"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.22",
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"versionEndExcluding": "5.15.222"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.22",
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"versionEndExcluding": "6.1.189"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.22",
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"versionEndExcluding": "6.6.158"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.22",
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"versionEndExcluding": "6.12.112"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.22",
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"versionEndExcluding": "6.18.54"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.22",
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"versionEndExcluding": "7.2.8"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.22",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/0191c9ff23ef1678dbfb5ad253a2dee92feb5d71"
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},
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{
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"url": "https://git.kernel.org/stable/c/8f510f68208a1f673d7c7234a687be4671490e9c"
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},
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{
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"url": "https://git.kernel.org/stable/c/4719424bb7cb9f20b73986bcb72dd528f0e5c6eb"
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},
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{
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"url": "https://git.kernel.org/stable/c/a5a8b4737f68bbac8aa0685af0c8921e6003c22b"
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},
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{
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"url": "https://git.kernel.org/stable/c/b28a17d4a9bb0aa38b48681c3927b012ba40eabe"
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},
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{
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"url": "https://git.kernel.org/stable/c/b691a3e244278362e552439d6d3ee5a5d3703488"
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},
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{
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"url": "https://git.kernel.org/stable/c/7912ad8fb5233bb8cfe21d50df639c7f4854ff9d"
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},
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{
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"url": "https://git.kernel.org/stable/c/82e47533221d4746947b74d2e79a478c36c6433a"
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}
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],
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"title": "ata: libahci: clear PxCLBU and PxFBU for AHCI_HFLAG_32BIT_ONLY",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |