235 lines
12 KiB
JSON
235 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-2026-72352",
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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": "2026-08-09T03:40:39.921Z",
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"datePublished": "2026-08-15T05:55:54.809Z",
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"dateUpdated": "2026-10-21T12:44:39.607Z"
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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": "2026-10-21T12:44:39.607Z"
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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\nHID: bpf: Fix hid_bpf_get_data() range check\n\nhid_bpf_get_data() returns a pointer into the HID-BPF context data when\nthe caller-provided offset and size fit inside ctx->allocated_size.\n\nThe current check adds rdwr_buf_size and offset before comparing the\nresult against ctx->allocated_size. Since both values are unsigned, a\nvery large size can wrap the sum below ctx->allocated_size and make the\nhelper return a pointer even though the requested range is not contained\nin the backing buffer.\n\nUse check_add_overflow() to reject wrapped range ends before comparing\nthe requested range end against ctx->allocated_size."
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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 flaw is only reachable through local bpf() syscalls that load BPF_PROG_TYPE_STRUCT_OPS HID-BPF programs and attach them via BPF_LINK_CREATE; per kernel CNA guidance BPF subsystem bugs are Local even though callbacks may later run on HID input.\nAC:L - Once a HID-BPF program is loaded, the attacker fully controls offset and rdwr_buf_size passed to hid_bpf_get_data(); values such as offset=2 with size=~0 reliably wrap the unsigned sum and bypass the check without races or uncontrollable memory layout.\nPR:L - Loading BPF_MAP_TYPE_STRUCT_OPS maps and BPF_PROG_TYPE_STRUCT_OPS programs requires CAP_BPF (sysctl_unprivileged_bpf_disabled blocks unprivileged BPF); per kernel CNA guidance this is Low because CAP_BPF can be delegated via BPF tokens into user namespaces, not only init-namespace root.\nUI:N - The attacker loads and attaches their own HID-BPF program and triggers hid_bpf_get_data() from its callbacks; no separate victim action such as mounting, opening a file, or plugging in a device is required beyond the attacker's own bpf operations.\nS:U - Exploitation corrupts kernel heap memory from within the same kernel security authority to achieve local privilege escalation; it does not inherently cross VM, IOMMU, or container sandbox boundaries as a distinct scope change.\nC:H - The overflow lets BPF code obtain a pointer outside the allocated HID-BPF context buffer and read adjacent kernel heap memory, enabling arbitrary kernel information disclosure and supporting further exploitation primitives.\nI:H - The same out-of-bounds pointer allows arbitrary kernel heap writes through the returned buffer, enabling control of adjacent objects and potential arbitrary code execution in kernel context.\nA:H - Large out-of-bounds reads/writes against kmalloc-backed HID-BPF buffers can corrupt critical kernel structures and cause kernel oops, panic, or hang during HID-BPF callback execution."
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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/hid/bpf/hid_bpf_dispatch.c"
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],
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"versions": [
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{
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"version": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
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"lessThan": "f72176bde0cc0e709e41ab170c71e8f229232af6",
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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": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
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"lessThan": "ca373549140dfb386aa2de38364b58441b1f4885",
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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": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
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"lessThan": "61a959b82f1aecd6d2d35c208013dd077cac9d10",
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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": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
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"lessThan": "f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f",
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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": "658ee5a64fcfbbf758447fa3af425729eaabb0dc",
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"lessThan": "2d044049421dd48212b28646a850749d4a2d57fa",
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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/hid/bpf/hid_bpf_dispatch.c"
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],
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"versions": [
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{
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"version": "6.3",
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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": "6.3",
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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": "6.12.97",
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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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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.3",
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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": "6.3",
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"versionEndExcluding": "6.12.97"
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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": "6.3",
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"versionEndExcluding": "6.18.40"
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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": "6.3",
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"versionEndExcluding": "7.1.5"
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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": "6.3",
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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/f72176bde0cc0e709e41ab170c71e8f229232af6"
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},
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{
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"url": "https://git.kernel.org/stable/c/ca373549140dfb386aa2de38364b58441b1f4885"
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},
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{
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"url": "https://git.kernel.org/stable/c/61a959b82f1aecd6d2d35c208013dd077cac9d10"
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},
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{
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"url": "https://git.kernel.org/stable/c/f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f"
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},
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{
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"url": "https://git.kernel.org/stable/c/2d044049421dd48212b28646a850749d4a2d57fa"
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}
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],
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"title": "HID: bpf: Fix hid_bpf_get_data() range check",
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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-2026-72352",
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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": "2026-10-16T18:47:53.495070Z"
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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": "2026-10-16T18:55:20.122Z"
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}
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}
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]
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}
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} |