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 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().
Affected versions
Linux kernel versions
6.5.12,
6.6
and later are affected. Fixed in
6.6.151,
6.12.103,
6.18.44,
7.1.8,
7.2-rc6
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-74541?
CVE-2026-74541 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.5.12 onward and has been patched in 6.6.151, 6.12.103, 6.18.44 and others. CVE-2026-74541 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74541?
Yes. CVE-2026-74541 has been patched. Fixed versions include 6.6.151, 6.12.103, 6.18.44 and others. If you are running Linux kernel 6.5.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74541 actively exploited?
No. CVE-2026-74541 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.