Vulnerability Description
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 Score
HIGH
References
- https://git.kernel.org/stable/c/63c0f396a18b767eb28e895eb95bbdce6c172c59
- https://git.kernel.org/stable/c/69a4a7b162b3db6ac337e3094cdee38f24d42ff7
- https://git.kernel.org/stable/c/7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0
- https://git.kernel.org/stable/c/cc1d39946d62bc568551dfb81149724de1e91338
- https://git.kernel.org/stable/c/d57e506f6a1e3929611340fae87c1e4823f4d85c
FAQ
What is CVE-2026-74541?
CVE-2026-74541 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 = NU...
How severe is CVE-2026-74541?
CVE-2026-74541 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-74541?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.