293 lines
15 KiB
JSON
293 lines
15 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-2024-46818",
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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": "2024-09-11T15:12:18.284Z",
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"datePublished": "2024-09-27T12:35:59.187Z",
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"dateUpdated": "2026-08-05T11:38:49.209Z"
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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": "2026-08-05T11:38:49.209Z"
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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\ndrm/amd/display: Check gpio_id before used as array index\n\n[WHY & HOW]\nGPIO_ID_UNKNOWN (-1) is not a valid value for array index and therefore\nshould be checked in advance.\n\nThis fixes 5 OVERRUN issues reported by Coverity."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerable GPIO service paths are reached only through the local AMD display driver — DRM atomic modeset/stereo ioctls on /dev/dri/card0 and link detect/encoder enable on hotplug. There is no network or remote-peer input anywhere on the path.\nAC:L - In the affected versions `id` is an uninitialized stack variable in `dal_gpio_service_create_generic_mux()`/`create_irq()` that `offset_to_id()` leaves unwritten on its DDC arms, so the index is residual stack data a local caller can groom via repeated ioctls before triggering the modeset. No race or unpredictable external state is required.\nPR:L - An unprivileged local user with a graphical session holds DRM master on the card node and can issue the atomic commits that drive `dc_set_generic_gpio_for_stereo()` and encoder enable/disable. No CAP_SYS_ADMIN or root is needed.\nUI:N - The attacker drives the modeset and GPIO open/close sequence entirely from their own process; no second user must open a file, plug in a display, or take any action.\nS:U - The out-of-bounds access corrupts kernel memory belonging to the same kernel security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - `busyness[-1]` loads `factory.funcs` (a kernel `.rodata` pointer) and `is_pin_busy()` dereferences it at attacker-influenced offset `en`, and a groomed index yields an out-of-bounds pointer load plus read — memory corruption of this shape is leverageable for kernel memory disclosure and KASLR defeat.\nI:H - `set_pin_busy()`/`set_pin_free()` perform an out-of-bounds write (`busyness[id][en] = true/false`) through that out-of-bounds-loaded pointer, landing in the `const struct hw_factory_funcs` vtable whose entries are later invoked indirectly (`funcs->init_ddc_data`, `funcs->get_ddc_pin`), giving a path to control-flow corruption.\nA:H - Writing through the negative index hits read-only `.rodata` under CONFIG_STRICT_KERNEL_RWX, or a wild pointer with a groomed index, producing an immediate kernel oops/panic; the ASSERT_CRITICAL paths do not prevent the access."
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}
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]
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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/gpu/drm/amd/display/dc/gpio/gpio_service.c"
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],
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"versions": [
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{
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"version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
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"lessThan": "8520fdc8ecc38f240a8e9e7af89cca6739c3e790",
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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": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
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"lessThan": "40c2e8bc117cab8bca8814735f28a8b121654a84",
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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": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
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"lessThan": "0184cca30cad74d88f5c875d4e26999e26325700",
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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": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
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"lessThan": "276e3fd93e3beb5894eb1cc8480f9f417d51524d",
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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": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
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"lessThan": "08e7755f754e3d2cef7d3a7da538d33526bd6f7c",
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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": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
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"lessThan": "3d4198ab612ad48f73383ad3bb5663e6f0cdf406",
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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": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c",
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"lessThan": "2a5626eeb3b5eec7a36886f9556113dd93ec8ed6",
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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/gpu/drm/amd/display/dc/gpio/gpio_service.c"
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],
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"versions": [
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{
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"version": "4.15",
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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": "4.15",
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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": "5.4.284",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.226",
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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": "5.15.167",
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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": "6.1.109",
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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": "6.6.50",
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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": "6.10.9",
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"lessThanOrEqual": "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": "6.11",
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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": "4.15",
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"versionEndExcluding": "5.4.284"
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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": "4.15",
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"versionEndExcluding": "5.10.226"
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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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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.15",
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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": "4.15",
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"versionEndExcluding": "6.6.50"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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/8520fdc8ecc38f240a8e9e7af89cca6739c3e790"
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},
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{
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"url": "https://git.kernel.org/stable/c/40c2e8bc117cab8bca8814735f28a8b121654a84"
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},
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{
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"url": "https://git.kernel.org/stable/c/0184cca30cad74d88f5c875d4e26999e26325700"
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},
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{
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"url": "https://git.kernel.org/stable/c/276e3fd93e3beb5894eb1cc8480f9f417d51524d"
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},
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{
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"url": "https://git.kernel.org/stable/c/08e7755f754e3d2cef7d3a7da538d33526bd6f7c"
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},
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{
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"url": "https://git.kernel.org/stable/c/3d4198ab612ad48f73383ad3bb5663e6f0cdf406"
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},
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{
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"url": "https://git.kernel.org/stable/c/2a5626eeb3b5eec7a36886f9556113dd93ec8ed6"
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}
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],
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"title": "drm/amd/display: Check gpio_id before used as array index",
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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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"timestamp": "2024-09-29T14:15:06.184629Z",
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"id": "CVE-2024-46818",
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2024-09-29T14:15:15.550Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T22:19:05.133Z"
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}
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}
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]
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}
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} |