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CVE-2026-64362

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: HID: lg-g15: cancel pending work on remove to fix a use-after-free lg_g15_data is allocated with devm and holds a work item. The report handlers schedule that work straight from device input. lg_g15_event() and lg_g15_v2_event() do it on the backlight cycle key, and lg_g510_leds_event() does it too. The worker dereferences the lg_g15_data back through container_of. The driver had no remove callback and never cancelled the work. So if a report scheduled the work and the keyboard was then unplugged, devres freed lg_g15_data while the work was still pending or running, and the worker touched freed memory. This is a use-after-free. It is reachable as a race on device unplug. Add a remove callback that cancels the work before devres frees the state. g15->work is only initialized for the models that schedule it (G15, G15 v2, G510). The G13 and Z-10 leave it zeroed, so guard the cancel on g15->work.func to avoid cancelling a work that was never set up. The g15 NULL test mirrors the one already in lg_g15_raw_event().

Severity
HIGH
CVSS score
7.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-07-25 10:17:18.820000
Last modified
2026-11-06 17:18:51.677000
View original CVE JSON 
{
  "id": "CVE-2026-64362",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-07-25T10:17:18.820",
  "lastModified": "2026-11-06T17:18:51.677",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: lg-g15: cancel pending work on remove to fix a use-after-free\n\nlg_g15_data is allocated with devm and holds a work item. The report\nhandlers schedule that work straight from device input.\nlg_g15_event() and lg_g15_v2_event() do it on the backlight cycle key,\nand lg_g510_leds_event() does it too. The worker dereferences the\nlg_g15_data back through container_of.\n\nThe driver had no remove callback and never cancelled the work. So if a\nreport scheduled the work and the keyboard was then unplugged, devres\nfreed lg_g15_data while the work was still pending or running, and the\nworker touched freed memory. This is a use-after-free. It is reachable\nas a race on device unplug.\n\nAdd a remove callback that cancels the work before devres frees the\nstate. g15->work is only initialized for the models that schedule it\n(G15, G15 v2, G510). The G13 and Z-10 leave it zeroed, so guard the\ncancel on g15->work.func to avoid cancelling a work that was never set\nup. The g15 NULL test mirrors the one already in lg_g15_raw_event()."
    }
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