164 lines
7.9 KiB
JSON
164 lines
7.9 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-2026-98601",
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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": "2026-09-25T10:25:14.359Z",
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"datePublished": "2026-10-18T15:19:13.760Z",
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"dateUpdated": "2026-10-19T09:22:28.028Z"
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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": "2026-10-19T09:22:28.028Z"
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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\nBluetooth: btintel_pcie: validate device-supplied DMA indices\n\nIn btintel_pcie_msix_rx_handle(), the driver processes RX completion\ndescriptors (urbd1) written by the PCIe device into DMA-coherent memory.\nurbd1->frbd_tag (a 16-bit field fully controlled by the device firmware\nvia DMA) is used directly as an array index into rxq->bufs[] without any\nbounds check. rxq->bufs[] has only BTINTEL_PCIE_RX_DESCS_COUNT (64)\nentries, while frbd_tag can be any value 0-65535. A malicious or\nmalfunctioning device can write an out-of-range frbd_tag, causing the\ndriver to dereference an out-of-bounds data_buf pointer.\n\nAdditionally, cr_hia is read from a DMA-shared index array also writable\nby the device; if the device sets cr_hia >= rxq->count, the while-loop\nnever terminates because cr_tia is wrapped via modulo rxq->count and can\nnever equal an out-of-range cr_hia.\n\nAdd bounds validation for cr_hia and frbd_tag in the RX path, and cr_hia\nin the TX path. Log invalid values with bt_dev_err before returning."
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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/bluetooth/btintel_pcie.c"
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],
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"versions": [
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{
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"version": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
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"lessThan": "f42cd95e679d5b78611cd2208cd1c41ad0045ffa",
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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": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
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"lessThan": "8ec5838a35b03ac0cf3602452a369898051ffaf9",
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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": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
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"lessThan": "b29b70bfa12133423924fcd0327c19a802f7e368",
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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": "c2b636b3f788d10486a6691ad6dd3ec4c93bd78e",
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"lessThan": "37a11129345337efd6eef8e62b03b6348cd0dd8b",
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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/bluetooth/btintel_pcie.c"
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],
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"versions": [
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{
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"version": "6.10",
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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": "6.10",
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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": "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": "6.18.55",
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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": "7.2.9",
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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": "6.10",
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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": "6.10",
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"versionEndExcluding": "6.18.55"
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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": "6.10",
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"versionEndExcluding": "7.2.9"
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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": "6.10",
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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/f42cd95e679d5b78611cd2208cd1c41ad0045ffa"
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},
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{
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"url": "https://git.kernel.org/stable/c/8ec5838a35b03ac0cf3602452a369898051ffaf9"
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},
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{
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"url": "https://git.kernel.org/stable/c/b29b70bfa12133423924fcd0327c19a802f7e368"
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},
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{
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"url": "https://git.kernel.org/stable/c/37a11129345337efd6eef8e62b03b6348cd0dd8b"
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}
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],
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"title": "Bluetooth: btintel_pcie: validate device-supplied DMA indices",
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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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} |