201 lines
10 KiB
JSON
201 lines
10 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-2026-46232",
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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": "2026-05-13T15:03:33.106Z",
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"datePublished": "2026-05-28T09:40:54.248Z",
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"dateUpdated": "2026-08-05T12:30:38.317Z"
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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": "2026-08-05T12:30:38.317Z"
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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: playstation: Clamp num_touch_reports\n\nA device would never lie about the number of touch reports would it?\n\nIf it does the loop in dualshock4_parse_report will read off the end of\nthe touch_reports array, up to about 2 KiB for the maximum number of 256\nloop iteraions. The data that is read is emitted via evdev if the\nDS4_TOUCH_POINT_INACTIVE bit happens to be set. Protect against this by\nclamping the num_touch_reports value provided by the device to the\nmaximum size of the touch_reports array."
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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:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
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"baseScore": 8.1,
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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:A - The DualShock4 binds over both Bluetooth (HID_BLUETOOTH_DEVICE) and USB; a malicious/compromised controller within Bluetooth radio range delivers the crafted report, making Adjacent the most severe reasonable transport (higher than the USB/Physical path).\nAC:L - The device fully controls num_touch_reports and can deterministically set it to 255; the BT CRC32 uses a fixed, known seed the attacker computes. No race or attacker-uncontrolled condition is involved.\nPR:N - No privileges on the target are needed — the malicious HID device itself is the attacker, supplying crafted input reports that the kernel parses automatically.\nUI:N - A bonded controller (or a device emulating one) auto-reconnects and autonomously streams the malicious reports; no victim action triggers the out-of-bounds read.\nS:U - The impact is confined to the kernel's own memory and the input subsystem; no security boundary (VM, IOMMU, sandbox) is crossed.\nC:H - Up to ~2 KiB of adjacent kernel heap is read out of bounds, and the X/Y coordinates derived from that memory are emitted to userspace through the touchpad evdev device — a substantial kernel-memory disclosure, not bounded to a few bytes.\nI:N - The flaw is purely an out-of-bounds read; no kernel memory is written, modified, or corrupted.\nA:H - Reading up to ~2 KiB past the heap allocation can reach an unmapped page and trigger a kernel oops/panic."
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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/hid-playstation.c"
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],
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"versions": [
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{
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"version": "752038248808a7ff176bbdb668f19ae7d2a9816b",
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"lessThan": "0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4",
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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": "752038248808a7ff176bbdb668f19ae7d2a9816b",
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"lessThan": "9c031b24aed6733b6dcc5d98527875b8654a04e9",
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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": "752038248808a7ff176bbdb668f19ae7d2a9816b",
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"lessThan": "7812694752a5f295eaa05a093b90a2c332666051",
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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": "752038248808a7ff176bbdb668f19ae7d2a9816b",
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"lessThan": "208f6d5b1dfd6399bc6af9e11f27f1f496243ed0",
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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": "752038248808a7ff176bbdb668f19ae7d2a9816b",
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"lessThan": "cac61b58a3b6340c52afa06bb15eac033158db2f",
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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/hid-playstation.c"
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],
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"versions": [
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{
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"version": "6.2",
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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": "6.2",
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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": "6.6.140",
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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": "6.12.90",
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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": "6.18.32",
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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": "7.0.9",
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"lessThanOrEqual": "7.0.*",
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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",
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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": "6.2",
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"versionEndExcluding": "6.6.140"
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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": "6.2",
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"versionEndExcluding": "6.12.90"
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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": "6.2",
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"versionEndExcluding": "6.18.32"
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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": "6.2",
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"versionEndExcluding": "7.0.9"
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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": "6.2",
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"versionEndExcluding": "7.1"
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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/0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4"
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},
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{
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"url": "https://git.kernel.org/stable/c/9c031b24aed6733b6dcc5d98527875b8654a04e9"
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},
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{
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"url": "https://git.kernel.org/stable/c/7812694752a5f295eaa05a093b90a2c332666051"
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},
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{
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"url": "https://git.kernel.org/stable/c/208f6d5b1dfd6399bc6af9e11f27f1f496243ed0"
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},
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{
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"url": "https://git.kernel.org/stable/c/cac61b58a3b6340c52afa06bb15eac033158db2f"
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}
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],
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"title": "HID: playstation: Clamp num_touch_reports",
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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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} |