CVE-2023-53145

Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition

HIGH

7.8

CVSS Score

Published: May 10, 2025 at 02:19 PM UTC

Updated: June 17, 2026 at 06:44 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition In btsdio_probe, the data->work is bound with btsdio_work. It will be started in btsdio_send_frame. If the btsdio_remove runs with a unfinished work, there may be a race condition that hdev is freed but used in btsdio_work. Fix it by canceling the work before do cleanup in btsdio_remove.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 4.14.3262.6.24 ≤ v < 4.14.3262.6.24 ≤ v < 4.19.2952.6.24 ≤ v < 5.10.1952.6.24 ≤ v < 5.15.1312.6.24 ≤ v < 5.4.2572.6.24 ≤ v < 6.1.522.6.24 ≤ v < 6.34.15 ≤ v < 4.19.2954.20 ≤ v < 5.4.2575.11 ≤ v < 5.15.1315.16 ≤ v < 6.1.525.5 ≤ v < 5.10.1956.2 ≤ v < 6.32.6.24 6.3 rc1 6.3 rc2 6.3 rc3 6.3 rc4 6.3 rc5 6.3 rc6ddbaf13e3609442b64abb931ac21527772d87980

Vendor states this is fixed in 179c65828593aff1f444e15debd40a477cb23cf4 (fixed)

Vendor states this is fixed in 3efcbf25e5ab4d4ad1b7e6ba0869ff85540e3f6e (fixed)

Vendor states this is fixed in 6c3653627397a0d6eab19b20a59423e118985a6b (fixed)

Vendor states this is fixed in 73f7b171b7c09139eb3c6a5677c200dc1be5f318 (fixed)

Vendor states this is fixed in 746b363bef41cc159c051c47f9e30800bc6b520d (fixed)

Vendor states this is fixed in a5c2a467e9e789ae0891de55b766daac52e3b7b3 (fixed)

Vendor states this is fixed in a6650d27ab2c12a8ee750f396edb5ac8b4558b2e (fixed)

Vendor states this is fixed in 2.6.24 (unaffected)

Vendor states this is fixed in 4.14.326 (unaffected)

Vendor states this is fixed in 4.19.295 (unaffected)

Vendor states this is fixed in 5.10.195 (unaffected)

Vendor states this is fixed in 5.15.131 (unaffected)