CVE-2026-63943
Last modified
CVE-2026-63943 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.20% chance of exploitation in the next 30 days.
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.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= cbc82e7db16d59c301457312a624a7de2c03cd4a, < bcfb4833cd4078a1a356ef451838b75cd233099e; >= 302a0cd0bbc450998429a3f4267970a4b93251a8, < 37ec54abfdd63a63fd50734a9c4e4cbc1e5795af; >= 4ef46367073b107ec22f46fe5f12176e87c238e8, < 9749db57233b396353ad5dee81eec9d9880c9246; >= 4ef46367073b107ec22f46fe5f12176e87c238e8, < 6346b0895b574ce45f3747b9c508c72f70e6abef; >= 4ef46367073b107ec22f46fe5f12176e87c238e8, < 6cdc46b38cf146ce81d4831b6472dbf7731849a2; a7e3ddd1d9a3d0b26465ed01d464e3c05479ebc8; >= 6.6.91, < 6.6.143; >= 6.12.29, < 6.12.93; >= 6.14.7, < 6.15 |
| Linux | Linux | 6.15 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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