Bluetooth: coredump: Quiesce dump work on unregister
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.2, 6.12.112, 6.18.54, 7.2.8
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: coredump: Quiesce dump work on unregister hci_devcd_handle_pkt_init() arms dump_timeout and coredump producers queue dump_rx without holding an hdev reference. Unregister leaves both works live, so disconnecting during an active dump lets them access hdev after hci_release_dev() frees it. Shut down coredump processing during unregister. Close the producer gate under dump_q.lock before disabling both works, then free the active buffer and queued packets under hci_dev_lock. Serializing the gate with enqueue prevents controller-specific workers from adding packets after the final purge.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 9695ef876fd122cb7bbc04a4a93b8727d2e36bda · fixed in 24af375d7d8aa5f698e4dc41317102f44114351a; From 9695ef876fd122cb7bbc04a4a93b8727d2e36bda · fixed in dcaf10ef27f928568c25de3e9fc242e538de5c67; From 9695ef876fd122cb7bbc04a4a93b8727d2e36bda · fixed in 82699d1b727ba5980b94f1eb8dc3d346f41b7c67; From 9695ef876fd122cb7bbc04a4a93b8727d2e36bda · fixed in d236517c264e41dc09833c708ef23bccb7a91219; From 6.1.188 · fixed in 6.2
- Linux Linux
6.4
- KernelLinux
From 6.4.0 · fixed in 6.12.112; From 6.13.0 · fixed in 6.18.54; From 6.19.0 · fixed in 7.2.8