{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68091","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-30T09:28:09.367Z","datePublished":"2026-08-10T11:51:46.683Z","dateUpdated":"2026-08-17T04:58:39.275Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T04:58:39.275Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: wacom: stop hardware after post-start probe failures\n\nwacom_parse_and_register() starts HID hardware before registering inputs\nand initializing pad LEDs/remotes. Those later steps can fail, but their\nerror paths currently release Wacom resources without stopping the HID\nhardware.\n\nRoute post-hid_hw_start() failures through hid_hw_stop() before\nreleasing driver resources.\n\nThis issue was identified during our ongoing static-analysis research while\nreviewing kernel code."}],"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 - The flaw is in the Wacom HID driver probe path reached when a Wacom-class HID device is connected; Bluetooth Wacom tablets are widely deployed and let an adjacent attacker deliver crafted HID traffic without USB port access.\nAC:L - A malicious or fuzzed Wacom HID device can steer probe through post-hid_hw_start() failure paths and the scheduled init_work, reliably leaving HID hardware active after driver teardown.\nPR:N - Exploitation requires only presenting a rogue Wacom HID device over Bluetooth or USB; no prior local account, capability, or namespace privilege on the victim host is needed.\nUI:N - No victim interaction is required beyond the attacker initiating device connection; probe failure and continued HID activity occur automatically on the kernel hotplug path.\nS:U - Impact is kernel memory corruption and privilege escalation within the host kernel, not crossing a VM, container, or IOMMU security boundary.\nC:H - Continued HID callbacks and delayed work after wacom_release_resources() create a use-after-free on freed driver allocations, enabling arbitrary kernel memory disclosure.\nI:H - The dangling hardware/workqueue activity against freed Wacom state is a heap use-after-free that can be leveraged for arbitrary kernel writes and code execution.\nA:H - Accessing freed probe resources from still-running HID hardware or init_work can cause kernel oops, panic, or hang, producing complete system denial of service."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/wacom_sys.c"],"versions":[{"version":"f304eb483393f135ab479d02da6f5dc7d9b51cd6","lessThan":"5a7ca028facf04921b2c1c2e4d1ee7f282510555","status":"affected","versionType":"git"},{"version":"853307924a9003b3142b5253b1caa6625fbad9fc","lessThan":"3e6473a4f0596182acdda5219b4bebfbee76514f","status":"affected","versionType":"git"},{"version":"e5c6c8ef3e4d3a88407404daafbf2c6be62f2185","lessThan":"46d8b8c85ae0589fb85746a64e8908160e52aac3","status":"affected","versionType":"git"},{"version":"fc41101a94b11cd0d5ad8e213b2b6965f248d653","lessThan":"1a1ebdcb56ae58a0ee2c54dd15d75121e30424e3","status":"affected","versionType":"git"},{"version":"c1d6708bf0d3dd976460d435373cf5abf21ce258","lessThan":"75eb2173b63ab41c24d80cd641af18f3c117a267","status":"affected","versionType":"git"},{"version":"c1d6708bf0d3dd976460d435373cf5abf21ce258","lessThan":"416095e9a6037b4b39fcadd0d2bd77a8852211ec","status":"affected","versionType":"git"},{"version":"c1d6708bf0d3dd976460d435373cf5abf21ce258","lessThan":"e2cc711a9df37f359159b21db56cea9c21f58a9c","status":"affected","versionType":"git"},{"version":"c1d6708bf0d3dd976460d435373cf5abf21ce258","lessThan":"ec2612b8ad9e642596db011dd8b6568ef1edeaa1","status":"affected","versionType":"git"},{"version":"d943536197c1a05e377452af4ec7942e11d018f4","status":"affected","versionType":"git"},{"version":"dbaca8fa9ec2c5aa55ec515686ce3b9007554eab","status":"affected","versionType":"git"},{"version":"79187e8099a9feb550916dbfb962497522022b6d","status":"affected","versionType":"git"},{"version":"5.10.210","lessThan":"5.10.261","status":"affected","versionType":"semver"},{"version":"5.15.149","lessThan":"5.15.212","status":"affected","versionType":"semver"},{"version":"6.1.79","lessThan":"6.1.178","status":"affected","versionType":"semver"},{"version":"6.6.18","lessThan":"6.6.145","status":"affected","versionType":"semver"},{"version":"4.19.307","lessThan":"4.20","status":"affected","versionType":"semver"},{"version":"5.4.269","lessThan":"5.5","status":"affected","versionType":"semver"},{"version":"6.7.6","lessThan":"6.8","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_sys.c"],"versions":[{"version":"6.8","status":"affected"},{"version":"0","lessThan":"6.8","status":"unaffected","versionType":"semver"},{"version":"5.10.261","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.212","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.96","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.39","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.4","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"5.10.210","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.149","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.79","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.18","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.12.96"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.307"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.269"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7.6"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/5a7ca028facf04921b2c1c2e4d1ee7f282510555"},{"url":"https://git.kernel.org/stable/c/3e6473a4f0596182acdda5219b4bebfbee76514f"},{"url":"https://git.kernel.org/stable/c/46d8b8c85ae0589fb85746a64e8908160e52aac3"},{"url":"https://git.kernel.org/stable/c/1a1ebdcb56ae58a0ee2c54dd15d75121e30424e3"},{"url":"https://git.kernel.org/stable/c/75eb2173b63ab41c24d80cd641af18f3c117a267"},{"url":"https://git.kernel.org/stable/c/416095e9a6037b4b39fcadd0d2bd77a8852211ec"},{"url":"https://git.kernel.org/stable/c/e2cc711a9df37f359159b21db56cea9c21f58a9c"},{"url":"https://git.kernel.org/stable/c/ec2612b8ad9e642596db011dd8b6568ef1edeaa1"}],"title":"HID: wacom: stop hardware after post-start probe failures","x_generator":{"engine":"bippy-1.2.0"}}}}