CVE-2025-68304 — Race Condition within a Thread in Linux
Severity
7.2HIGHOSV
No vectorEPSS
0.0%
top 89.67%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 16
Latest updateApr 6
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_core: lookup hci_conn on RX path on protocol side
The hdev lock/lookup/unlock/use pattern in the packet RX path doesn't
ensure hci_conn* is not concurrently modified/deleted. This locking
appears to be leftover from before conn_hash started using RCU
commit bf4c63252490b ("Bluetooth: convert conn hash to RCU")
and not clear if it had purpose since then.
Currently, there are code paths that delete hci_conn* from…