237 lines
12 KiB
JSON
237 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-2026-68416",
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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": "2026-07-30T09:28:09.391Z",
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"datePublished": "2026-08-10T12:04:36.582Z",
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"dateUpdated": "2026-11-06T16:55:16.107Z"
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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": "2026-10-30T12:28:33.091Z"
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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\nmtd: fix double free and WARN_ON in add_mtd_device() error paths\n\nWhen device_register() or mtd_nvmem_add() fails inside\nadd_mtd_device() for a partition, the error handling triggers\nmtd_release() via put_device() or device_unregister(). mtd_release()\ncalls release_mtd_partition() which frees the mtd_info structure.\nHowever, callers such as mtd_add_partition() and add_mtd_partitions()\nalso call free_partition() in their error paths, resulting in a double\nfree.\n\nAdditionally, release_mtd_partition() hits WARN_ON(!list_empty(\n&mtd->part.node)) because the partition node is still linked in the\nparent's partitions list when the release callback fires from the\nadd_mtd_device() error path.\n\nFix this by overriding dev->type and dev->release before put_device()\nin the error paths, so that device_release() invokes a no-op function\ninstead of mtd_release(). For the mtd_nvmem_add() failure case,\ndevice_unregister() is replaced with device_del() to separate the\ndevice removal from the final kobject reference drop, allowing the\noverride to take effect before put_device() is called.\n\nThe callers' error paths (list_del + free_partition) remain the sole\nowners of mtd_info lifetime on add_mtd_device() failure, which is the\nexpected contract.\n\nThe normal partition teardown path is not affected: del_mtd_device()\ngoes through kref_put() -> mtd_device_release() -> device_unregister()\nwith dev->type still set to &mtd_devtype, so mtd_release() ->\nrelease_mtd_partition() continues to work correctly for the regular\nremoval case."
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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/mtd/mtdcore.c"
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],
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"versions": [
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{
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"version": "93c08951d7070134b7415ca4abd0d25876aa653b",
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"lessThan": "b1f78dc4a6869e30ff64345a5d3e7da1b6da0061",
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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": "006764e33fe9cff72f8a68ce1dab570d93662c96",
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"lessThan": "1dfe90daee6080b088b65620ff690a56f59ddea2",
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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": "19bfa9ebebb5ec0695def57eb1d80de7e9cab369",
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"lessThan": "ffe21a3545b439e7b11578a701c22a847c149561",
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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": "19bfa9ebebb5ec0695def57eb1d80de7e9cab369",
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"lessThan": "e1e96aca1bdf391e2f49531c270ffc134e5b49a5",
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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": "19bfa9ebebb5ec0695def57eb1d80de7e9cab369",
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"lessThan": "f98ae09c727dcf34f745c875661c64b642e4abfa",
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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": "19bfa9ebebb5ec0695def57eb1d80de7e9cab369",
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"lessThan": "820f983d641937a787e841ee4b93501f69f5683e",
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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": "19bfa9ebebb5ec0695def57eb1d80de7e9cab369",
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"lessThan": "9d4af746af8ce27eefc2338b2feaa1e01f28b6c3",
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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/mtd/mtdcore.c"
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],
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"versions": [
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{
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"version": "6.6",
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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": "6.6",
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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": "6.6.148",
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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": "6.12.101",
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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": "6.18.42",
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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": "7.1.6",
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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",
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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": "6.6",
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"versionEndExcluding": "6.6.148"
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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": "6.6",
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"versionEndExcluding": "6.12.101"
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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": "6.6",
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"versionEndExcluding": "6.18.42"
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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": "6.6",
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"versionEndExcluding": "7.1.6"
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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": "6.6",
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"versionEndExcluding": "7.2"
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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/b1f78dc4a6869e30ff64345a5d3e7da1b6da0061"
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},
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{
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"url": "https://git.kernel.org/stable/c/1dfe90daee6080b088b65620ff690a56f59ddea2"
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},
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{
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"url": "https://git.kernel.org/stable/c/ffe21a3545b439e7b11578a701c22a847c149561"
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},
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{
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"url": "https://git.kernel.org/stable/c/e1e96aca1bdf391e2f49531c270ffc134e5b49a5"
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},
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{
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"url": "https://git.kernel.org/stable/c/f98ae09c727dcf34f745c875661c64b642e4abfa"
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},
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{
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"url": "https://git.kernel.org/stable/c/820f983d641937a787e841ee4b93501f69f5683e"
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},
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{
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"url": "https://git.kernel.org/stable/c/9d4af746af8ce27eefc2338b2feaa1e01f28b6c3"
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}
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],
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"title": "mtd: fix double free and WARN_ON in add_mtd_device() error paths",
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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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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-68416",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T16:49:06.259041Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T16:55:16.107Z"
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}
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}
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]
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}
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} |