HIGHCVSS 7.8

CVE-2021-33034

CVE-2021-33034 updated by NVD

Modified: 2026-08-15
Sources: nvd

Summary

In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.

References

https://nvd.nist.gov/vuln/detail/CVE-2021-33034

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.