{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49974","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-06-18T10:57:27.385Z","datePublished":"2025-06-18T11:00:37.224Z","dateUpdated":"2026-08-15T12:23:02.248Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-15T12:23:02.248Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: nintendo: fix rumble worker null pointer deref\n\nWe can dereference a null pointer trying to queue work to a destroyed\nworkqueue.\n\nIf the device is disconnected, nintendo_hid_remove is called, in which\nthe rumble_queue is destroyed. Avoid using that queue to defer rumble\nwork once the controller state is set to JOYCON_CTLR_STATE_REMOVED.\n\nThis eliminates the null pointer dereference."}],"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 hid-nintendo driver binds Joy-Cons and Pro Controllers over Bluetooth (`HID_BLUETOOTH_DEVICE`), so a nearby malicious or spoofed controller can drive connect/disconnect and HID report delivery. Bluetooth adjacency is the highest reasonable vector versus USB-physical.\nAC:L - The bug is a remove-versus-`queue_work` race on `rumble_queue`, and the Bluetooth peer controls disconnect timing and can retry while rumble is active. Attacker-influenced races are Low complexity under the required guidance.\nPR:N - An adjacent Bluetooth HID peer needs no local account or capability on the victim. Driver remove and report handling run from the Bluetooth/HID stack, not from attacker-held OS privileges.\nUI:N - Once a controller is paired or otherwise connected in normal gaming/handheld use, disconnect and rumble scheduling proceed without further victim action. Pairing is treated as an environmental precondition, not required interaction.\nS:U - The fault is in host-kernel HID/workqueue handling and stays within the same kernel security authority, with no VM, IOMMU, or sandbox boundary crossed.\nC:H - `nintendo_hid_remove()` calls `destroy_workqueue(ctlr->rumble_queue)` without clearing the pointer, then `joycon_parse_report()`/`joycon_set_rumble()` can `queue_work()` on the freed workqueue. That dangling-pointer UAF is scored as high confidentiality impact.\nI:H - Queuing work through a destroyed `workqueue_struct` is kernel heap use-after-free of workqueue state, which is defensibly exploitable for memory corruption or control-flow integrity compromise under the required UAF guidance.\nA:H - Use of the destroyed rumble workqueue causes a kernel oops/panic-class crash (as described in the fix), so availability impact is High."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-nintendo.c"],"versions":[{"version":"c4eae84feff3e68c2f385aa10faea4a96791e7ad","lessThan":"7c6e6c334154be16740b44dcd7638fb510b9bd91","status":"affected","versionType":"git"},{"version":"c4eae84feff3e68c2f385aa10faea4a96791e7ad","lessThan":"1ff89e06c2e5fab30274e4b02360d4241d6e605e","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-nintendo.c"],"versions":[{"version":"5.16","status":"affected"},{"version":"0","lessThan":"5.16","status":"unaffected","versionType":"semver"},{"version":"5.19.7","lessThanOrEqual":"5.19.*","status":"unaffected","versionType":"semver"},{"version":"6.0","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":"5.16","versionEndExcluding":"5.19.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/7c6e6c334154be16740b44dcd7638fb510b9bd91"},{"url":"https://git.kernel.org/stable/c/1ff89e06c2e5fab30274e4b02360d4241d6e605e"}],"title":"HID: nintendo: fix rumble worker null pointer deref","x_generator":{"engine":"bippy-1.2.0"}}}}