CVEvulnerability
CVE-2026-64362
7.8 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-25
- Last modified
- 2026-09-04
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
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().
Affected configurations
• linux linux kernel (>= 5.5 < 5.10.261)
• linux linux kernel (>= 5.11 < 5.15.212)
• linux linux kernel (>= 5.16 < 6.1.178)
• linux linux kernel (>= 6.2 < 6.6.145)
• linux linux kernel (>= 6.7 < 6.12.96)
• linux linux kernel (>= 6.13 < 6.18.39)
• linux linux kernel (>= 6.19 < 7.1.4)
• linux linux kernel 7.2
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/33cd1a000daf929356aacf2b191d31714ff0615e Patch
- https://git.kernel.org/stable/c/3b9a3919aac6977262f04d5365c0456877522a44 Patch
- https://git.kernel.org/stable/c/4aef9676c26dff8723b56834951cfc6b618f0986 Patch
- https://git.kernel.org/stable/c/4d0d51bc12d246accbfbb94de05d729c68c9b8fb Patch
- https://git.kernel.org/stable/c/7705b4140d188ce22656f6e541ae7ef834c7e11a Patch
- https://git.kernel.org/stable/c/8131f4226688c4be5f30874d167e44dab838eb09 Patch
- https://git.kernel.org/stable/c/acce9dee807f21184fff19ad17c8ed464247e7f7 Patch
- https://git.kernel.org/stable/c/dfc6e61f83113cc18346b6988f07271c0063357d Patch