CVE-2026-80780
- Source
- https://cve.org/CVERecord?id=CVE-2026-80780
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80780.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-80780
- Downstream
- Related
- Published
- 2026-09-04T15:12:52Z
- Modified
- 2026-10-08T02:52:02Z
- Summary
- HID: pidff: fix OOB write when hid->inputs is empty
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
HID: pidff: fix OOB write when hid->inputs is empty
hid_pidff_init_with_quirks() derives its input_dev from
list_entry(hid->inputs.next, struct hid_input, list)without first checking that hid->inputs is non-empty. The list member of struct hid_input is at offset 0, so on an empty list list_entry() yields &hid->inputs itself and the following hidinput->input load reads an unrelated member of struct hid_device. dev is then a type-confused pointer, and force-feedback init writes through it: each set_bit(FF_*, dev->ffbit) stores 8 bytes at dev + 192, past the end of the object dev actually aliases, and input_ff_create() adds further writes of a heap pointer and two function pointers.
Until hid-universal-pidff the only caller was hid_pidff_init() from usbhid, which runs under HID_CLAIMED_INPUT and therefore always has at least one hid_input. universal_pidff_probe() starts the device with HID_CONNECT_DEFAULT & ~HID_CONNECT_FF and then calls hid_pidff_init_with_quirks() directly whenever the descriptor carries a PID usage page, bypassing that gate. A report descriptor whose only application collection is on HID_UP_PID leaves hid->inputs empty while hid_connect() still succeeds through the hidraw claim, so probe reaches the unguarded list_entry().
The write happens in the USB probe path, on the hotplug workqueue, so plugging in a malicious device is enough to trigger it; no attacker software and no logged-in user are required. KASAN reports an 8-byte out-of-bounds write in hid_pidff_init_with_quirks() reached from universal_pidff_probe().
Check for an empty list before deriving dev and return -ENODEV, as the other HID force-feedback drivers already do. universal_pidff_probe() propagates the error and unwinds.
Discovered by XBOW, triaged by Baul Lee baul.lee@xbow.com
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80780.json" }- References
-
- https://git.kernel.org/stable/c/2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a
- https://git.kernel.org/stable/c/4529c03c3da8f91392cd630453452f569973f4cd
- https://git.kernel.org/stable/c/67bb1074e3d2d12fa059a9cc707e89398a4e4704
- https://git.kernel.org/stable/c/86b63adfa5e132beac4be72668fdf9128fe51d2e
- https://git.kernel.org/stable/c/ad9330f7e74a97842815a291a0d7389ed2f34504
- https://git.kernel.org/stable/c/d416eeb7d016d82af67c149d884bc6a9323c4ac7
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80780.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-80780
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc1fde337b317f0a226de92803288741c30799eb0Fixed2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf45f26a6b3e7260c129c7c6bb0ace63aeb7b3868Fixedad9330f7e74a97842815a291a0d7389ed2f34504
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf06bf8d94fffbb544b1cb5402c92e0a075f0d420Fixed4529c03c3da8f91392cd630453452f569973f4cdFixedd416eeb7d016d82af67c149d884bc6a9323c4ac7Fixed86b63adfa5e132beac4be72668fdf9128fe51d2eFixed67bb1074e3d2d12fa059a9cc707e89398a4e4704
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.88Fixed6.6.156
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.12.24Fixed6.12.108
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.13.12Fixed6.14
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.14.3Fixed6.15
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedaf9f2471dfe5a48384f5b7f021a673fbc741465e
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb797352954eee6dc084cfaed0659dea60adfb484
Affected versions
v6.*
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed6.6.156
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.108
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.18.47
- Type
- ECOSYSTEM
- Events
-
Introduced6.15.0Fixed7.1.11
- Type
- ECOSYSTEM
- Events
-
Introduced6.19.0Fixed7.2.1