CVE-2023-53297 (GCVE-0-2023-53297)

Vulnerability from cvelistv5 – Published: 2025-09-16 08:11 – Updated: 2026-01-14 18:12
VLAI?
Title
Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
Summary
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.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f2d38e77aa5f3effc143e7dd24da8acf02925958 , < 5f352a56f0e607e6ff539cbf12156bfd8af232be (git)
Affected: 1351551aa9058e07a20a27a158270cf84fcde621 , < 6a27762340ad08643de3bc17fe1646ea489ca2e2 (git)
Affected: c02421992505c95c7f3c9ad59ee35e22eac60988 , < 2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d (git)
Affected: d9ba36c22a7bb09d6bac4cc2f243eff05da53f43 , < 55410a9144c76ecda126e6cdec556dfcd8f343b2 (git)
Affected: ac6725a634f7e8c0330610a8527f20c730b61115 , < 116b9c002c894097adc2b8684db2d1da4229ed46 (git)
Affected: 348d446762e7c70778df8bafbdf3fa0df2123f58 , < fd269a0435f8e9943b7a57c5a59688848d42d449 (git)
Affected: a2a9339e1c9deb7e1e079e12e27a0265aea8421a , < 5134556c9be582793f30695c09d18a26fe1ff2d7 (git)
Affected: a2a9339e1c9deb7e1e079e12e27a0265aea8421a , < 25e97f7b1866e6b8503be349eeea44bb52d661ce (git)
Affected: d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284 (git)
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    Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 4.14.316 , ≤ 4.14.* (semver)
Unaffected: 4.19.284 , ≤ 4.19.* (semver)
Unaffected: 5.4.244 , ≤ 5.4.* (semver)
Unaffected: 5.10.181 , ≤ 5.10.* (semver)
Unaffected: 5.15.113 , ≤ 5.15.* (semver)
Unaffected: 6.1.30 , ≤ 6.1.* (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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