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-2026-80923",
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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": "2026-08-26T14:34:25.801Z",
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"datePublished": "2026-09-09T16:19:43.538Z",
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"dateUpdated": "2026-10-19T08:45:07.298Z"
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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": "2026-10-19T08:45:07.298Z"
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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\nxhci: dbgtty: Fix unregister on tty_register_driver() failure\n\nIf tty_register_driver() fails, it drops the reference, but fails to set\nthe global dbc_tty_driver to NULL, causing the unregister to be called\nagain when module exits.\n\nOn module unload dbc_tty_exit() only gates its cleanup on the driver\npointer being non-NULL, so it operates on the already-freed driver:\n\n module_init(xhci_hcd_init)\n xhci_hcd_init()\n xhci_dbc_init() [return value ignored]\n dbc_tty_init()\n tty_register_driver() fails\n tty_driver_kref_put() -> driver freed\n (dbc_tty_driver left dangling)\n ...\n module_exit(xhci_hcd_fini)\n xhci_hcd_fini()\n xhci_dbc_exit()\n dbc_tty_exit()\n if (dbc_tty_driver) -> true (dangling)\n tty_unregister_driver() -> use-after-free"
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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/usb/host/xhci-dbgtty.c"
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],
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"versions": [
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{
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"version": "4521f16139409cdf9462c7325d43454462cff6c3",
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"lessThan": "01b7bc0938061f2fd46e0094f6483d8c6c02f7d3",
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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": "4521f16139409cdf9462c7325d43454462cff6c3",
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"lessThan": "43635ff6401ca0e0ed21875379eeded921321525",
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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": "4521f16139409cdf9462c7325d43454462cff6c3",
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"lessThan": "eaca2814f32b9872a332326324b9e83e01f156d2",
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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": "4521f16139409cdf9462c7325d43454462cff6c3",
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"lessThan": "943f976c93e70563b132f5585ff68b08c89641a2",
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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": "4521f16139409cdf9462c7325d43454462cff6c3",
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"lessThan": "0d0faf3cc44c4d86fc6faf5cea972c0fbe00b922",
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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": "4521f16139409cdf9462c7325d43454462cff6c3",
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"lessThan": "33ed35ca629477f57e0dd1d77d6df96cf5a9eb55",
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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": "4521f16139409cdf9462c7325d43454462cff6c3",
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"lessThan": "0e469b94fbba8eb03666da41dd1082b793c50c1a",
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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": "4521f16139409cdf9462c7325d43454462cff6c3",
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"lessThan": "a916fa66a43e10f63198b6ce978badffc678821a",
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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/usb/host/xhci-dbgtty.c"
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],
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"versions": [
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{
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"version": "5.9",
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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": "5.9",
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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": "5.15.220",
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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": "6.1.187",
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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": "6.6.156",
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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": "6.12.108",
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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": "6.18.49",
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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": "7.1.13",
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"lessThanOrEqual": "7.1.*",
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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": "7.2.3",
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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": "5.9",
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"versionEndExcluding": "5.15.220"
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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": "5.9",
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"versionEndExcluding": "6.1.187"
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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": "5.9",
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"versionEndExcluding": "6.6.156"
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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": "5.9",
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"versionEndExcluding": "6.12.108"
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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": "5.9",
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"versionEndExcluding": "6.18.49"
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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": "5.9",
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"versionEndExcluding": "7.1.13"
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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": "5.9",
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"versionEndExcluding": "7.2.3"
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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": "5.9",
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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/01b7bc0938061f2fd46e0094f6483d8c6c02f7d3"
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},
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{
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"url": "https://git.kernel.org/stable/c/43635ff6401ca0e0ed21875379eeded921321525"
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},
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{
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"url": "https://git.kernel.org/stable/c/eaca2814f32b9872a332326324b9e83e01f156d2"
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},
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{
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"url": "https://git.kernel.org/stable/c/943f976c93e70563b132f5585ff68b08c89641a2"
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},
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{
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"url": "https://git.kernel.org/stable/c/0d0faf3cc44c4d86fc6faf5cea972c0fbe00b922"
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},
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{
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"url": "https://git.kernel.org/stable/c/33ed35ca629477f57e0dd1d77d6df96cf5a9eb55"
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},
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{
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"url": "https://git.kernel.org/stable/c/0e469b94fbba8eb03666da41dd1082b793c50c1a"
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},
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{
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"url": "https://git.kernel.org/stable/c/a916fa66a43e10f63198b6ce978badffc678821a"
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}
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],
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"title": "xhci: dbgtty: Fix unregister on tty_register_driver() failure",
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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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} |