Tracker / CVE-2026-63943
CVE-2026-63943
High 7.1
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 6.12.29 → 6.12.93 |
| linux | linux_kernel · 6.14.7 → 6.15 |
| linux | linux_kernel · 6.15.1 → 6.18.35 |
| linux | linux_kernel · 6.19 → 7.0.12 |
| linux | linux_kernel · 6.6.91 → 6.6.143 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.