Tracker / CVE-2026-53209
CVE-2026-53209
High 7.8
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend Existing advertising instances can already hold the maximum extended advertising payload. When hci_adv_bcast_annoucement() prepends the Broadcast Announcement service data to that payload, the combined data may no longer fit in the temporary buffer used to rebuild the advertising data. Reject that case before copying the existing payload and report the failure through the device log. This keeps the existing advertising data intact and avoids overrunning the temporary buffer.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 6.1.142 → 6.1.176 |
| linux | linux_kernel · 6.12.34 → 6.12.94 |
| linux | linux_kernel · 6.15.3 → 6.16 |
| linux | linux_kernel · 6.16.1 → 6.18.36 |
| linux | linux_kernel · 6.19 → 7.0.13 |
| linux | linux_kernel · 6.6.94 → 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.