CVE-2026-46232

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46232", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.106Z", "datePublished": "2026-05-28T09:40:54.248Z", "dateUpdated": "2026-08-05T12:30:38.317Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:30:38.317Z"}, "descriptions": [{"lang": "en", "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."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "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 \u2014 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 \u2014 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."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hid/hid-playstation.c"], "versions": [{"version": "752038248808a7ff176bbdb668f19ae7d2a9816b", "lessThan": "0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4", "status": "affected", "versionType": "git"}, {"version": "752038248808a7ff176bbdb668f19ae7d2a9816b", "lessThan": "9c031b24aed6733b6dcc5d98527875b8654a04e9", "status": "affected", "versionType": "git"}, {"version": "752038248808a7ff176bbdb668f19ae7d2a9816b", "lessThan": "7812694752a5f295eaa05a093b90a2c332666051", "status": "affected", "versionType": "git"}, {"version": "752038248808a7ff176bbdb668f19ae7d2a9816b", "lessThan": "208f6d5b1dfd6399bc6af9e11f27f1f496243ed0", "status": "affected", "versionType": "git"}, {"version": "752038248808a7ff176bbdb668f19ae7d2a9816b", "lessThan": "cac61b58a3b6340c52afa06bb15eac033158db2f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hid/hid-playstation.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.90", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.32", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.9", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.12.90"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.18.32"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.0.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4"}, {"url": "https://git.kernel.org/stable/c/9c031b24aed6733b6dcc5d98527875b8654a04e9"}, {"url": "https://git.kernel.org/stable/c/7812694752a5f295eaa05a093b90a2c332666051"}, {"url": "https://git.kernel.org/stable/c/208f6d5b1dfd6399bc6af9e11f27f1f496243ed0"}, {"url": "https://git.kernel.org/stable/c/cac61b58a3b6340c52afa06bb15eac033158db2f"}], "title": "HID: playstation: Clamp num_touch_reports", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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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."}], "id": "CVE-2026-46232", "lastModified": "2026-06-17T10:53:22.790", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-05-28T10:16:38.840", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0bc4cf1a6ba00fb8c074531b179bc7b97502fbc4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/208f6d5b1dfd6399bc6af9e11f27f1f496243ed0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7812694752a5f295eaa05a093b90a2c332666051"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9c031b24aed6733b6dcc5d98527875b8654a04e9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cac61b58a3b6340c52afa06bb15eac033158db2f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: HID: playstation: Clamp num_touch_reports", "id": "2482538", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482538"}, "csaw": false, "cwe": "CWE-805", "details": ["A flaw was found in the Linux kernel's Human Interface Device (HID) PlayStation driver. A malicious device could provide an excessively large number of touch reports, leading to an out-of-bounds read in the `dualshock4_parse_report` function. This could allow an attacker to read up to 2 KiB of kernel memory, potentially leading to information disclosure."], "name": "CVE-2026-46232", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46232\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46232\nhttps://lore.kernel.org/linux-cve-announce/2026052839-CVE-2026-46232-58cb@gregkh/T"]}

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