{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53454", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-17T14:54:09.754Z", "datePublished": "2025-10-01T11:42:25.760Z", "dateUpdated": "2026-08-05T09:14:10.366Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:14:10.366Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: multitouch: Correct devm device reference for hidinput input_dev name\n\nReference the HID device rather than the input device for the devm\nallocation of the input_dev name. Referencing the input_dev would lead to a\nuse-after-free when the input_dev was unregistered and subsequently fires a\nuevent that depends on the name. At the point of firing the uevent, the\nname would be freed by devres management.\n\nUse devm_kasprintf to simplify the logic for allocating memory and\nformatting the input_dev name string." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:A - hid-multitouch explicitly binds Bluetooth HID multitouch devices (MT_BT_DEVICE, BUS_BLUETOOTH, and HID_BUS_ANY catch-alls), so an in-range attacker can connect a crafted Bluetooth HID multitouch device and disconnect it to trigger the UAF; Adjacent is higher severity than the USB-only Physical path.\nAC:L - An attacker-controlled HID report descriptor with ContactID (to select HID_GROUP_MULTITOUCH) plus an unrecognized application collection forces the \"UNKNOWN\" suffix allocation, and disconnect reliably hits device_del's free-then-uevent ordering with no race beyond the attacker's control.\nPR:N - Bluetooth HID enumeration and driver bind/unbind run from kernel hotplug with no account, capability, or authentication on the target; the attacker needs no local privileges on the victim system.\nUI:N - The attacker performs connect and disconnect themselves (or via Just Works / auto-reconnect HID pairing), and the kernel probe/teardown path fires the uevent without requiring the victim to open a file or otherwise interact.\nS:U - The use-after-free corrupts kernel heap state within the same OS security authority; it does not cross a VM, IOMMU, or sandbox boundary.\nC:H - The freed input_dev name string is read via %s into the KOBJ_REMOVE uevent, so a groomed reallocation of the kmalloc object yields disclosure of attacker-chosen heap contents; kernel UAF is scored High confidentiality.\nI:H - The UAF is a sprayable kmalloc object whose dangling pointer is consumed during teardown; heap grooming enables overlapping objects and control-flow/write primitives, so integrity impact is High per UAF guidance.\nA:H - Use of the freed name during uevent generation reliably produces a kernel oops/panic (or KASAN slab-use-after-free), and the attacker can repeat connect/disconnect at will." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/hid/hid-multitouch.c" ], "versions": [ { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "ac0d389402a6ff9ad92cea02c2d8c711483b91ab", "status": "affected", "versionType": "git" }, { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "39c70c19456e50dcb3abfe53539220dff0490f1d", "status": "affected", "versionType": "git" }, { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "df7ca43fe090e1a56c216c8ebc106ef5fd49afc6", "status": "affected", "versionType": "git" }, { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "15ec7cb55e7d88755aa01d44a7a1015a42bfce86", "status": "affected", "versionType": "git" }, { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "dde88ab4e45beb60b217026207aa9c14c88d71ab", "status": "affected", "versionType": "git" }, { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "2763732ec1e68910719c75b6b896e11b6d3d622b", "status": "affected", "versionType": "git" }, { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "1d7833db9fd118415dace2ca157bfa603dec9c8c", "status": "affected", "versionType": "git" }, { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "b70ac7849248ec8128fa12f86e3655ba38838f29", "status": "affected", "versionType": "git" }, { "version": "c08d46aa805ba46d501f610c2448d07bea979780", "lessThan": "4794394635293a3e74591351fff469cea7ad15a2", "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-multitouch.c" ], "versions": [ { "version": "3.12", "status": "affected" }, { "version": "0", "lessThan": "3.12", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.326", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.295", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.257", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.195", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.132", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.53", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.16", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5.3", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6", "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": "3.12", "versionEndExcluding": "4.14.326" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "4.19.295" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.4.257" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.10.195" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.15.132" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.1.53" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.4.16" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.5.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "6.6" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/ac0d389402a6ff9ad92cea02c2d8c711483b91ab" }, { "url": "https://git.kernel.org/stable/c/39c70c19456e50dcb3abfe53539220dff0490f1d" }, { "url": "https://git.kernel.org/stable/c/df7ca43fe090e1a56c216c8ebc106ef5fd49afc6" }, { "url": "https://git.kernel.org/stable/c/15ec7cb55e7d88755aa01d44a7a1015a42bfce86" }, { "url": "https://git.kernel.org/stable/c/dde88ab4e45beb60b217026207aa9c14c88d71ab" }, { "url": "https://git.kernel.org/stable/c/2763732ec1e68910719c75b6b896e11b6d3d622b" }, { "url": "https://git.kernel.org/stable/c/1d7833db9fd118415dace2ca157bfa603dec9c8c" }, { "url": "https://git.kernel.org/stable/c/b70ac7849248ec8128fa12f86e3655ba38838f29" }, { "url": "https://git.kernel.org/stable/c/4794394635293a3e74591351fff469cea7ad15a2" } ], "title": "HID: multitouch: Correct devm device reference for hidinput input_dev name", "x_generator": { "engine": "bippy-1.2.0" } } } }