{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80780","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.792Z","datePublished":"2026-09-04T15:12:52.009Z","dateUpdated":"2026-09-04T15:12:52.009Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-04T15:12:52.009Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: pidff: fix OOB write when hid->inputs is empty\n\nhid_pidff_init_with_quirks() derives its input_dev from\n\n\tlist_entry(hid->inputs.next, struct hid_input, list)\n\nwithout first checking that hid->inputs is non-empty.  The list member\nof struct hid_input is at offset 0, so on an empty list list_entry()\nyields &hid->inputs itself and the following hidinput->input load reads\nan unrelated member of struct hid_device.  dev is then a type-confused\npointer, and force-feedback init writes through it: each\nset_bit(FF_*, dev->ffbit) stores 8 bytes at dev + 192, past the end of\nthe object dev actually aliases, and input_ff_create() adds further\nwrites of a heap pointer and two function pointers.\n\nUntil hid-universal-pidff the only caller was hid_pidff_init() from\nusbhid, which runs under HID_CLAIMED_INPUT and therefore always has at\nleast one hid_input.  universal_pidff_probe() starts the device with\nHID_CONNECT_DEFAULT & ~HID_CONNECT_FF and then calls\nhid_pidff_init_with_quirks() directly whenever the descriptor carries a\nPID usage page, bypassing that gate.  A report descriptor whose only\napplication collection is on HID_UP_PID leaves hid->inputs empty while\nhid_connect() still succeeds through the hidraw claim, so probe reaches\nthe unguarded list_entry().\n\nThe write happens in the USB probe path, on the hotplug workqueue, so\nplugging in a malicious device is enough to trigger it; no attacker\nsoftware and no logged-in user are required.  KASAN reports an 8-byte\nout-of-bounds write in hid_pidff_init_with_quirks() reached from\nuniversal_pidff_probe().\n\nCheck for an empty list before deriving dev and return -ENODEV, as the\nother HID force-feedback drivers already do.  universal_pidff_probe()\npropagates the error and unwinds.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/usbhid/hid-pidff.c"],"versions":[{"version":"c1fde337b317f0a226de92803288741c30799eb0","lessThan":"2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a","status":"affected","versionType":"git"},{"version":"f45f26a6b3e7260c129c7c6bb0ace63aeb7b3868","lessThan":"ad9330f7e74a97842815a291a0d7389ed2f34504","status":"affected","versionType":"git"},{"version":"f06bf8d94fffbb544b1cb5402c92e0a075f0d420","lessThan":"4529c03c3da8f91392cd630453452f569973f4cd","status":"affected","versionType":"git"},{"version":"f06bf8d94fffbb544b1cb5402c92e0a075f0d420","lessThan":"d416eeb7d016d82af67c149d884bc6a9323c4ac7","status":"affected","versionType":"git"},{"version":"f06bf8d94fffbb544b1cb5402c92e0a075f0d420","lessThan":"86b63adfa5e132beac4be72668fdf9128fe51d2e","status":"affected","versionType":"git"},{"version":"f06bf8d94fffbb544b1cb5402c92e0a075f0d420","lessThan":"67bb1074e3d2d12fa059a9cc707e89398a4e4704","status":"affected","versionType":"git"},{"version":"af9f2471dfe5a48384f5b7f021a673fbc741465e","status":"affected","versionType":"git"},{"version":"b797352954eee6dc084cfaed0659dea60adfb484","status":"affected","versionType":"git"},{"version":"6.6.88","lessThan":"6.6.156","status":"affected","versionType":"semver"},{"version":"6.12.24","lessThan":"6.12.108","status":"affected","versionType":"semver"},{"version":"6.13.12","lessThan":"6.14","status":"affected","versionType":"semver"},{"version":"6.14.3","lessThan":"6.15","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/usbhid/hid-pidff.c"],"versions":[{"version":"6.15","status":"affected"},{"version":"0","lessThan":"6.15","status":"unaffected","versionType":"semver"},{"version":"6.6.156","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.108","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.47","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.11","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2.1","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","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":"6.6.88","versionEndExcluding":"6.6.156"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.24","versionEndExcluding":"6.12.108"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.47"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.1.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.2.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.3-rc1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a"},{"url":"https://git.kernel.org/stable/c/ad9330f7e74a97842815a291a0d7389ed2f34504"},{"url":"https://git.kernel.org/stable/c/4529c03c3da8f91392cd630453452f569973f4cd"},{"url":"https://git.kernel.org/stable/c/d416eeb7d016d82af67c149d884bc6a9323c4ac7"},{"url":"https://git.kernel.org/stable/c/86b63adfa5e132beac4be72668fdf9128fe51d2e"},{"url":"https://git.kernel.org/stable/c/67bb1074e3d2d12fa059a9cc707e89398a4e4704"}],"title":"HID: pidff: fix OOB write when hid->inputs is empty","x_generator":{"engine":"bippy-1.2.0"}}}}