CVE-2026-63943
Description
In the Linux kernel, the following vulnerability has been resolved:
Input: xpad - fix out-of-bounds access for Share button
xpadone_process_packet() receives len directly from urb->actual_length
and uses it to index the share-button byte at data[len - 18] or
data[len - 26]. Since both len and data[0] are under the device's
control, a broken controller can send a GIP_CMD_INPUT packet with
actual_length < 18 (e.g. 5 bytes) and reach this code path, causing
accesses beyond the actual array.
Fix this by calculating the offset and checking bounds against the
packet length.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | cbc82e7db16d59c301457312a624a7de2c03cd4a < bcfb4833cd4078a1a356ef451838b75cd233099e, 302a0cd0bbc450998429a3f4267970a4b93251a8 < 37ec54abfdd63a63fd50734a9c4e4cbc1e5795af, 4ef46367073b107ec22f46fe5f12176e87c238e8 < 9749db57233b396353ad5dee81eec9d9880c9246, 4ef46367073b107ec22f46fe5f12176e87c238e8 < 6346b0895b574ce45f3747b9c508c72f70e6abef … |
| Linux | Linux | — | 6.15, 0 < 6.15, 6.6.143 ≤ 6.6.*, 6.12.93 ≤ 6.12.* … |
References (5)
- https://git.kernel.org/stable/c/bcfb4833cd4078a1a356ef451838b75cd233099e
- https://git.kernel.org/stable/c/37ec54abfdd63a63fd50734a9c4e4cbc1e5795af
- https://git.kernel.org/stable/c/9749db57233b396353ad5dee81eec9d9880c9246
- https://git.kernel.org/stable/c/6346b0895b574ce45f3747b9c508c72f70e6abef
- https://git.kernel.org/stable/c/6cdc46b38cf146ce81d4831b6472dbf7731849a2