250 lines
13 KiB
JSON
250 lines
13 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-2026-99024",
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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": "2026-09-25T10:25:14.386Z",
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"datePublished": "2026-10-23T12:21:08.551Z",
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"dateUpdated": "2026-10-30T12:41:00.882Z"
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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": "2026-10-30T12:41:00.882Z"
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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\noptee: register TEE devices only once fully initialized\n\noptee_probe() called tee_device_register() on both the client and the\nsupplicant device before the rest of struct optee had been initialized.\n\ntee_device_register() calls cdev_device_add(), which does two things at\nonce: it creates /dev/tee0 and /dev/teepriv0, and it links the device\ninto the tee class so that class_find_device() can find it. From that\nmoment on the device is reachable both from user space via tee_open()\nand from kernel space via tee_client_open_context(). The only gate in\nteedev_open() is tee_device_get(), which merely checks that\nteedev->desc is non-NULL, which was already set by tee_device_alloc().\nTherefore, there is effectively no gate at all.\n\nA context opened in that window can run against a struct optee where\n\n - optee->call_queue.mutex is not initialized by optee_cq_init()\n - optee->supp mutex and completions is not initialized by\n optee_supp_init()\n - optee->rpmb_dev_mutex is not initialized yet,\n - the message argument cache is not initialized by\n optee_shm_arg_cache_init()\n - optee->ctx is still NULL\n\nAny open session or invoke during this window takes uninitialized\nmutexes and dereferences a NULL pointer.\n\nFix it by moving both tee_device_register() calls down to the point\nwhere all of struct optee is set up.\n\n[JW: adding fixes and cc]"
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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/tee/optee/ffa_abi.c",
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"drivers/tee/optee/smc_abi.c"
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],
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"versions": [
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{
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"version": "4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2",
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"lessThan": "8de131e1a2ab379641bb475f1bcb472a1a1d75df",
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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": "4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2",
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"lessThan": "db36c37a2c3f13d5fd0f1afd8e2391d6c50793e6",
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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": "4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2",
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"lessThan": "6b21a716ccab7fa42e8dfa3118000bc5274004ab",
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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": "4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2",
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"lessThan": "262062c01f5a817104c88bf6eacb7c6ffdc7018d",
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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": "4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2",
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"lessThan": "8cae1605be8a047ae3a62df07b9474d61462c4f6",
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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": "4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2",
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"lessThan": "681adbc9c7a820279582a295e183fa6a1d1b4ec4",
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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": "4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2",
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"lessThan": "2f7240f0a6fd83df274fc0a2abf0609b4e6bd388",
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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": "4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2",
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"lessThan": "c108feca0a096f8db25d1b69130035025e9e936d",
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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/tee/optee/ffa_abi.c",
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"drivers/tee/optee/smc_abi.c"
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],
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"versions": [
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{
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"version": "4.12",
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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": "4.12",
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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": "5.10.273",
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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": "5.15.224",
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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": "6.1.191",
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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": "6.6.160",
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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": "6.12.113",
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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": "6.18.57",
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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": "7.2.11",
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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": "4.12",
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"versionEndExcluding": "5.10.273"
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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": "4.12",
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"versionEndExcluding": "5.15.224"
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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": "4.12",
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"versionEndExcluding": "6.1.191"
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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": "4.12",
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"versionEndExcluding": "6.6.160"
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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": "4.12",
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"versionEndExcluding": "6.12.113"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.12",
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"versionEndExcluding": "6.18.57"
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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": "4.12",
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"versionEndExcluding": "7.2.11"
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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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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/8de131e1a2ab379641bb475f1bcb472a1a1d75df"
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},
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{
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"url": "https://git.kernel.org/stable/c/db36c37a2c3f13d5fd0f1afd8e2391d6c50793e6"
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},
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{
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"url": "https://git.kernel.org/stable/c/6b21a716ccab7fa42e8dfa3118000bc5274004ab"
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},
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{
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"url": "https://git.kernel.org/stable/c/262062c01f5a817104c88bf6eacb7c6ffdc7018d"
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},
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{
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"url": "https://git.kernel.org/stable/c/8cae1605be8a047ae3a62df07b9474d61462c4f6"
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},
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{
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"url": "https://git.kernel.org/stable/c/681adbc9c7a820279582a295e183fa6a1d1b4ec4"
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},
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{
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"url": "https://git.kernel.org/stable/c/2f7240f0a6fd83df274fc0a2abf0609b4e6bd388"
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},
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{
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"url": "https://git.kernel.org/stable/c/c108feca0a096f8db25d1b69130035025e9e936d"
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}
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],
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"title": "optee: register TEE devices only once fully initialized",
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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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} |