256 lines
13 KiB
JSON
256 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-2026-72261",
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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": "2026-08-09T03:40:39.915Z",
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"datePublished": "2026-08-15T05:54:49.022Z",
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"dateUpdated": "2026-10-16T18:55:13.974Z"
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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": "2026-08-17T05:42:10.529Z"
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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\nASoC: SOF: ipc3-control: Validate size in snd_sof_update_control\n\nIn snd_sof_update_control(), firmware-provided cdata->num_elems is\nchecked against local_cdata->data->size but never against the actual\nallocation size. If local_cdata->data->size was previously set to an\ninconsistent value, the memcpy could write past the allocated buffer.\n\nAdd a bounds check to ensure num_elems fits within the available space\nin the ipc_control_data allocation before copying."
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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 bug is reached on local SOF/IPC3 systems when DSP firmware sends SOF_IPC_GLB_COMP_MSG notifications that flow through sof_ipc3_rx_msg() to sof_ipc3_control_update() and snd_sof_update_control(); setup uses local ALSA ioctl/TLV on /dev/snd/controlC*, not remote network input.\nAC:L - An attacker can create the inconsistent local_cdata->data->size via ALSA bytes put/get IPC to the DSP and then reliably provoke matching firmware control notifications by driving audio activity; no uncontrollable memory layout or victim timing is required.\nPR:L - Reaching SOF binary kcontrols requires only local ALSA access to sound control devices, which is typically granted to unprivileged users in the audio group without init-namespace root or CAP_SYS_ADMIN; user namespaces do not grant this hardware path.\nUI:N - No separate victim action is needed; exploitation uses the attacker's own local ALSA clients and audio sessions to reach the vulnerable IPC3 control-update path on affected SOF hardware.\nS:U - Impact is kernel heap corruption and privilege escalation within the host kernel security domain; it does not cross VM, container, or IOMMU boundaries into another authority.\nC:H - The unchecked memcpy can write past the ipc_control_data kzalloc buffer, corrupting adjacent kernel heap objects and enabling information disclosure or further memory corruption primitives beyond the intended control cache.\nI:H - This is an out-of-bounds kernel heap write that can overwrite adjacent structures and be leveraged for control-flow hijack or local privilege escalation, not merely limited or benign data modification.\nA:H - Writing beyond the allocated ipc_control_data buffer can corrupt critical kernel heap metadata or objects and cause kernel oops/panic or system instability, satisfying high availability impact for kernel crashes."
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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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"sound/soc/sof/ipc3-control.c"
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],
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"versions": [
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{
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"version": "10f461d79c2d1afb22344986cc1b4631169cf25e",
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"lessThan": "1dc25a3e06364f48c4ef06016852f8b82425151a",
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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": "10f461d79c2d1afb22344986cc1b4631169cf25e",
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"lessThan": "ee781058cd4d71e4449f41cbe6a3b8c59daa2c51",
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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": "10f461d79c2d1afb22344986cc1b4631169cf25e",
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"lessThan": "ecf67f1302f2080b4d241b973364aacda70ad740",
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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": "10f461d79c2d1afb22344986cc1b4631169cf25e",
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"lessThan": "d3abaedf6a58469610136d2dace1a85cddf7afcf",
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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": "10f461d79c2d1afb22344986cc1b4631169cf25e",
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"lessThan": "2a591bf6fd41fd14bdae689aafac4a9ee702c23c",
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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": "10f461d79c2d1afb22344986cc1b4631169cf25e",
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"lessThan": "390aa4c9339bb0ec0bc8d554e830faf93ca9d49e",
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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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"sound/soc/sof/ipc3-control.c"
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],
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"versions": [
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{
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"version": "5.18",
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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": "5.18",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.97",
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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": "6.18.40",
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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": "7.1.5",
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.1.178"
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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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]
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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/1dc25a3e06364f48c4ef06016852f8b82425151a"
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},
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{
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"url": "https://git.kernel.org/stable/c/ee781058cd4d71e4449f41cbe6a3b8c59daa2c51"
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},
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{
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"url": "https://git.kernel.org/stable/c/ecf67f1302f2080b4d241b973364aacda70ad740"
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{
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"url": "https://git.kernel.org/stable/c/d3abaedf6a58469610136d2dace1a85cddf7afcf"
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},
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{
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"url": "https://git.kernel.org/stable/c/2a591bf6fd41fd14bdae689aafac4a9ee702c23c"
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},
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{
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"url": "https://git.kernel.org/stable/c/390aa4c9339bb0ec0bc8d554e830faf93ca9d49e"
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}
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],
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"title": "ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control",
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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-2026-72261",
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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": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T18:45:28.490975Z"
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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": "2026-10-16T18:55:13.974Z"
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}
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}
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]
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}
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} |