{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53797", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-08T23:58:35.275Z", "datePublished": "2025-12-09T00:00:53.868Z", "dateUpdated": "2026-08-05T09:16:04.053Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:16:04.053Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: wacom: Use ktime_t rather than int when dealing with timestamps\n\nCode which interacts with timestamps needs to use the ktime_t type\nreturned by functions like ktime_get. The int type does not offer\nenough space to store these values, and attempting to use it is a\nrecipe for problems. In this particular case, overflows would occur\nwhen calculating/storing timestamps leading to incorrect values being\nreported to userspace. In some cases these bad timestamps cause input\nhandling in userspace to appear hung." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - The vulnerable parser is reached only through HID reports from a Bluetooth-attached Wacom tablet — all affected device IDs (0x360, 0x361, 0x393, 0x377, 0x379) are registered with BT_DEVICE_WACOM/BUS_BLUETOOTH, so the attack surface is the Bluetooth peer within radio range. This matches the Adjacent classification used for other wacom BT report-handler CVEs.\nAC:L - The truncation is unconditional and deterministic — a signed int holds only ~2.1 seconds of nanoseconds, so ktime_get() values stored in time_delayed wrap within seconds of uptime on every affected device with no attacker-uncontrollable preconditions.\nPR:N - No credentials or privileges on the target system are needed; the malformed state is produced from data supplied by the Bluetooth HID peer, and wacom_raw_event()/wacom_wac_irq() perform no capability or permission checks before dispatching to wacom_intuos_pro2_bt_pen().\nUI:N - The overflow occurs during ordinary pen-report processing on a connected tablet with no victim action required beyond normal device use.\nS:U - The corrupted timestamps stay within the kernel input subsystem and the evdev consumers of the same system; no security authority or isolation boundary is crossed.\nC:N - The bad values are derived solely from truncated monotonic clock readings, which userspace can already obtain via clock_gettime(); no kernel memory contents, pointers, or heap data are disclosed.\nI:L - The kernel writes incorrect event timestamps into the input event stream delivered to userspace, so applications consume corrupted data; the modification is real but bounded to the timestamp fields of input events.\nA:H - The commit states the bad timestamps cause input handling in userspace to appear hung, i.e. a complete loss of availability of the affected input device — on graphics workstations, kiosks, and embedded panels where the digitizer is the primary or sole input device this is a total denial of interactive service requiring intervention to recover." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/hid/wacom_wac.c", "drivers/hid/wacom_wac.h" ], "versions": [ { "version": "f9e27d4bdb1fe257c1453d02560e3adc3e5b6023", "lessThan": "99036f1aed7e82773904f5d91a9897bb3e507fd9", "status": "affected", "versionType": "git" }, { "version": "4502ebbdc0e21e44a8a706428e420ae9c1bb9bba", "lessThan": "9598a647ecc8f300b0540abf9d3b3439859d163b", "status": "affected", "versionType": "git" }, { "version": "5047a228d4c8e2b5d1b856f21a00ecf717945a9c", "lessThan": "67ce7724637c6adb66f788677cb50b82615de0ac", "status": "affected", "versionType": "git" }, { "version": "fb98336e23c11e9c8c7dd5425ec71adbbef7f773", "lessThan": "d89750b19681581796dfbe3689bbb5d439b99b24", "status": "affected", "versionType": "git" }, { "version": "694d3e4387bfa69925e075053894385351106e64", "lessThan": "bdeaa883b765709f231f47f9d6cc76c837a15396", "status": "affected", "versionType": "git" }, { "version": "17d793f3ed53080dab6bbeabfc82de890c901001", "lessThan": "d0198363f9108e4adb2511e607ba91e44779e8b1", "status": "affected", "versionType": "git" }, { "version": "17d793f3ed53080dab6bbeabfc82de890c901001", "lessThan": "9a6c0e28e215535b2938c61ded54603b4e5814c5", "status": "affected", "versionType": "git" }, { "version": "82a136c35506dc788a6c03ffeb11b10c907b0e26", "status": "affected", "versionType": "git" }, { "version": "5.4.243", "lessThan": "5.4.251", "status": "affected", "versionType": "semver" }, { "version": "5.10.180", "lessThan": "5.10.188", "status": "affected", "versionType": "semver" }, { "version": "5.15.112", "lessThan": "5.15.120", "status": "affected", "versionType": "semver" }, { "version": "6.1.29", "lessThan": "6.1.37", "status": "affected", "versionType": "semver" }, { "version": "6.3.3", "lessThan": "6.3.11", "status": "affected", "versionType": "semver" }, { "version": "6.2.16", "lessThan": "6.3", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/hid/wacom_wac.c", "drivers/hid/wacom_wac.h" ], "versions": [ { "version": "6.4", "status": "affected" }, { "version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.251", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.188", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.120", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.37", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.3.11", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.1", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5", "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": "5.4.243", "versionEndExcluding": "5.4.251" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.180", "versionEndExcluding": "5.10.188" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.112", "versionEndExcluding": "5.15.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.29", "versionEndExcluding": "6.1.37" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3.3", "versionEndExcluding": "6.3.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.4.1" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/99036f1aed7e82773904f5d91a9897bb3e507fd9" }, { "url": "https://git.kernel.org/stable/c/9598a647ecc8f300b0540abf9d3b3439859d163b" }, { "url": "https://git.kernel.org/stable/c/67ce7724637c6adb66f788677cb50b82615de0ac" }, { "url": "https://git.kernel.org/stable/c/d89750b19681581796dfbe3689bbb5d439b99b24" }, { "url": "https://git.kernel.org/stable/c/bdeaa883b765709f231f47f9d6cc76c837a15396" }, { "url": "https://git.kernel.org/stable/c/d0198363f9108e4adb2511e607ba91e44779e8b1" }, { "url": "https://git.kernel.org/stable/c/9a6c0e28e215535b2938c61ded54603b4e5814c5" } ], "title": "HID: wacom: Use ktime_t rather than int when dealing with timestamps", "x_generator": { "engine": "bippy-1.2.0" } } } }