CVE-2023-53297

Advisory lineage Upstream: 0 Downstream: 19
Modified
Published: 16 Sept 2025, 08:11
Last modified:23 May 2026, 15:28

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Sept 2025, 08:11
Published
Vulnerability first disclosed
23 May 2026, 15:28
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp conn->chan_lock isn't acquired before l2cap_get_chan_by_scid, if l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance' is triggered.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 4%

Affected Systems

  • linux•linux

    ≥ f2d38e77aa5f3effc143e7dd24da8acf02925958, < 5f352a56f0e607e6ff539cbf12156bfd8af232be | ≥ 1351551aa9058e07a20a27a158270cf84fcde621, < 6a27762340ad08643de3bc17fe1646ea489ca2e2 | ≥ c02421992505c95c7f3c9ad59ee35e22eac60988, < 2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d | ≥ d9ba36c22a7bb09d6bac4cc2f243eff05da53f43, < 55410a9144c76ecda126e6cdec556dfcd8f343b2 | ≥ ac6725a634f7e8c0330610a8527f20c730b61115, < 116b9c002c894097adc2b8684db2d1da4229ed46 | ≥ 348d446762e7c70778df8bafbdf3fa0df2123f58, < fd269a0435f8e9943b7a57c5a59688848d42d449 | ≥ a2a9339e1c9deb7e1e079e12e27a0265aea8421a, < 5134556c9be582793f30695c09d18a26fe1ff2d7 | ≥ a2a9339e1c9deb7e1e079e12e27a0265aea8421a, < 25e97f7b1866e6b8503be349eeea44bb52d661ce | d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284 | ≥ 4.14.313, < 4.14.316 | ≥ 4.19.281, < 4.19.284 | ≥ 5.4.241, < 5.4.244 | ≥ 5.10.178, < 5.10.181 | ≥ 5.15.108, < 5.15.113 | ≥ 6.1.25, < 6.1.30 | ≥ 6.2.12, < 6.3 | 6.3

  • linux•linux_kernel

    < 4.14.316 | ≥ 4.15, < 4.19.284 | ≥ 4.20, < 5.4.244 | ≥ 5.5, < 5.10.181 | ≥ 5.11, < 5.15.113 | ≥ 5.16, < 6.1.30 | ≥ 6.2, < 6.3.4

References (8)