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CVE-2023-53374

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CVE-2023-53374

Published: Sep 18, 2025

Modified: May 23, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early Not calling hci_(dis)connect_cfm before deleting conn referred to by a socket generally results to use-after-free. When cleaning up SCO connections when the parent ACL is deleted too early, use hci_conn_failed to do the connection cleanup properly. We also need to clean up ISO connections in a similar situation when connecting has started but LE Create CIS is not yet sent, so do it too here.

VendorProductVersions

Linux

Linux

affected
ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f - < 397d58007532644b35fad746da48c41161f32a57
affected
ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f - < e94b898463a62b72a2a8b75dea8936bf4db78e00
affected
ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f - < 3344d318337d9dca928fd448e966557ec5063f85
affected
75e35bd4b7935ceed2aacd82f55940e73bf0b63b
affected
6.3.8 - < 6.4

Linux

Linux

affected
6.4
unaffected
0 - < 6.4
unaffected
6.4.16 - <= 6.4.*
unaffected
6.5.3 - <= 6.5.*
unaffected
6.6 - <= *

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