Tracker / CVE-2026-63948
CVE-2026-63948
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn __set_chan_timer() takes a l2cap_chan reference via l2cap_chan_hold() before scheduling the delayed work. The normal path in l2cap_chan_timeout() drops this reference with l2cap_chan_put() at the end, but the early return when chan->conn is NULL skips the put, leaking the reference. Add the missing l2cap_chan_put() before the early return.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.19.314 → 4.20 |
| linux | linux_kernel · 5.10.217 → 5.10.259 |
| linux | linux_kernel · 5.15.159 → 5.15.210 |
| linux | linux_kernel · 5.4.276 → 5.5 |
| linux | linux_kernel · 6.1.91 → 6.1.176 |
| linux | linux_kernel · 6.13 → 6.18.35 |
| linux | linux_kernel · 6.19 → 7.0.12 |
| linux | linux_kernel · 6.6.31 → 6.6.143 |
| linux | linux_kernel · 6.8.10 → 6.9 |
| linux | linux_kernel · 6.9.1 → 6.12.93 |
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.