Bluetooth: hci_conn: hold conn reference in abort_conn_sync()
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_conn: hold conn reference in abort_conn_sync()
There is theoretical UAF if the conn is freed while the hci_sync task is
running.
Hold refcount to avoid that.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/5761d003daa987ac81463f570713ce9c9dd204e5https://git.kernel.org/stable/c/64d1645f26aa49b5a86ba2fccd0bb6749ea725a6https://git.kernel.org/stable/c/963fb4b8e7d1ab07b4ae45bf15d41e667c88cacahttps://git.kernel.org/stable/c/e8f9fef362bab431d95371d3406bc720350290c3https://git.kernel.org/stable/c/fa812cfa81aa3d4a7b6ce8277979af57b3f79712