CVE-2026-74541
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.