In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: clear iso_data always when detaching conn from hcon …
CVE-2026-74541 · published 15 Aug 2026
How serious is it
- Severity: high, CVSS score 8.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-74541?
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Who is affected
- Linux Linux: 6.6
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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().
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/63c0f396a18b767eb28e895eb95bbdce6c172c59
- git.kernel.org/stable/c/69a4a7b162b3db6ac337e3094cdee38f24d42ff7
- git.kernel.org/stable/c/7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0
- git.kernel.org/stable/c/cc1d39946d62bc568551dfb81149724de1e91338
- git.kernel.org/stable/c/d57e506f6a1e3929611340fae87c1e4823f4d85c
Merged from NVD. Last updated 24 Oct 2026. All vulnerabilities · RSS · JSON