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CVE-2026-80780 (GCVE-0-2026-80780)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:12 – Updated: 2026-09-04 15:12
VLAI
Title
HID: pidff: fix OOB write when hid->inputs is empty
Summary
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>
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c1fde337b317f0a226de92803288741c30799eb0 , < 2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a (git)
Affected: f45f26a6b3e7260c129c7c6bb0ace63aeb7b3868 , < ad9330f7e74a97842815a291a0d7389ed2f34504 (git)
Affected: f06bf8d94fffbb544b1cb5402c92e0a075f0d420 , < 4529c03c3da8f91392cd630453452f569973f4cd (git)
Affected: f06bf8d94fffbb544b1cb5402c92e0a075f0d420 , < d416eeb7d016d82af67c149d884bc6a9323c4ac7 (git)
Affected: f06bf8d94fffbb544b1cb5402c92e0a075f0d420 , < 86b63adfa5e132beac4be72668fdf9128fe51d2e (git)
Affected: f06bf8d94fffbb544b1cb5402c92e0a075f0d420 , < 67bb1074e3d2d12fa059a9cc707e89398a4e4704 (git)
Affected: af9f2471dfe5a48384f5b7f021a673fbc741465e (git)
Affected: b797352954eee6dc084cfaed0659dea60adfb484 (git)
Affected: 6.6.88 , < 6.6.156 (semver)
Affected: 6.12.24 , < 6.12.108 (semver)
Affected: 6.13.12 , < 6.14 (semver)
Affected: 6.14.3 , < 6.15 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.6.156 , ≤ 6.6.* (semver)
Unaffected: 6.12.108 , ≤ 6.12.* (semver)
Unaffected: 6.18.47 , ≤ 6.18.* (semver)
Unaffected: 7.1.11 , ≤ 7.1.* (semver)
Unaffected: 7.2.1 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: pidff: fix OOB write when hid-\u003einputs is empty\n\nhid_pidff_init_with_quirks() derives its input_dev from\n\n\tlist_entry(hid-\u003einputs.next, struct hid_input, list)\n\nwithout first checking that hid-\u003einputs is non-empty.  The list member\nof struct hid_input is at offset 0, so on an empty list list_entry()\nyields \u0026hid-\u003einputs itself and the following hidinput-\u003einput 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-\u003effbit) 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 \u0026 ~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-\u003einputs 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 \u003cbaul.lee@xbow.com\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T15:12:52.009Z",
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        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a"
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        {
          "url": "https://git.kernel.org/stable/c/ad9330f7e74a97842815a291a0d7389ed2f34504"
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          "url": "https://git.kernel.org/stable/c/4529c03c3da8f91392cd630453452f569973f4cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/d416eeb7d016d82af67c149d884bc6a9323c4ac7"
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        {
          "url": "https://git.kernel.org/stable/c/86b63adfa5e132beac4be72668fdf9128fe51d2e"
        },
        {
          "url": "https://git.kernel.org/stable/c/67bb1074e3d2d12fa059a9cc707e89398a4e4704"
        }
      ],
      "title": "HID: pidff: fix OOB write when hid-\u003einputs is empty",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80780",
    "datePublished": "2026-09-04T15:12:52.009Z",
    "dateReserved": "2026-08-26T14:34:25.792Z",
    "dateUpdated": "2026-09-04T15:12:52.009Z",
    "state": "PUBLISHED"
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      "date": "2026-09-15",
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      "cve": "CVE-2026-80780",
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      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "HID: pidff: fix OOB write when hid-\u003einputs is empty",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-80780.json",
      "version": "2"
    },
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The list member\\nof struct hid_input is at offset 0, so on an empty list list_entry()\\nyields \u0026hid-\u003einputs itself and the following hidinput-\u003einput 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-\u003effbit) 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 \u0026 ~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-\u003einputs 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 \u003cbaul.lee@xbow.com\u003e\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/hid/usbhid/hid-pidff.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c1fde337b317f0a226de92803288741c30799eb0\",\"lessThan\":\"2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f45f26a6b3e7260c129c7c6bb0ace63aeb7b3868\",\"lessThan\":\"ad9330f7e74a97842815a291a0d7389ed2f34504\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f06bf8d94fffbb544b1cb5402c92e0a075f0d420\",\"lessThan\":\"4529c03c3da8f91392cd630453452f569973f4cd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f06bf8d94fffbb544b1cb5402c92e0a075f0d420\",\"lessThan\":\"d416eeb7d016d82af67c149d884bc6a9323c4ac7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f06bf8d94fffbb544b1cb5402c92e0a075f0d420\",\"lessThan\":\"86b63adfa5e132beac4be72668fdf9128fe51d2e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f06bf8d94fffbb544b1cb5402c92e0a075f0d420\",\"lessThan\":\"67bb1074e3d2d12fa059a9cc707e89398a4e4704\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"af9f2471dfe5a48384f5b7f021a673fbc741465e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b797352954eee6dc084cfaed0659dea60adfb484\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"6.6.88\",\"lessThan\":\"6.6.156\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.12.24\",\"lessThan\":\"6.12.108\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.13.12\",\"lessThan\":\"6.14\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.14.3\",\"lessThan\":\"6.15\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/hid/usbhid/hid-pidff.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.156\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.108\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.47\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.11\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2.1\",\"lessThanOrEqual\":\"7.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.3-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2e0471bf3ab2a6b7eedcc3b8a2a17286b6a9ae1a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4529c03c3da8f91392cd630453452f569973f4cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/67bb1074e3d2d12fa059a9cc707e89398a4e4704\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/86b63adfa5e132beac4be72668fdf9128fe51d2e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad9330f7e74a97842815a291a0d7389ed2f34504\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d416eeb7d016d82af67c149d884bc6a9323c4ac7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-10T01:51:54Z",
      "cve": "CVE-2026-80780",
      "id": "CVE-2026-80780",
      "initial_release_date": "2026-09-05T00:27:39Z",
      "product_status:known_affected": "17",
      "product_status:known_not_affected": "324",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80780",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80780.json",
      "version": "5"
    }
  }
}



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