Bluetooth: ISO: clear iso_data always when detaching conn from hcon
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 70% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: ISO: clear iso_data always when detaching conn from hcon
When setting conn->hcon = NULL, also conn->hcon->iso_data = NULL is
necessary, otherwise later iso_conn_free() will UAF.
Fix clearing of iso_data in iso_sock_disconn()
Fixes KASAN: slab-use-after-free in iso_conn_hold_unless_zero on
iso_sock_release() followed by hci_abort_conn_sync().
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/63c0f396a18b767eb28e895eb95bbdce6c172c59https://git.kernel.org/stable/c/69a4a7b162b3db6ac337e3094cdee38f24d42ff7https://git.kernel.org/stable/c/7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0https://git.kernel.org/stable/c/cc1d39946d62bc568551dfb81149724de1e91338https://git.kernel.org/stable/c/d57e506f6a1e3929611340fae87c1e4823f4d85c