7.8

CVE-2023-53145: Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition

Analyzed
AliasesUBUNTU-CVE-2023-53145DEBIAN-CVE-2023-53145
Published 10-05-2025Last modified 11-05-2026

Vulnerability summary

CVE-2023-53145 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.19%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
SUSE-SU-2025:01918-1SUSE-SU-2025:01966-1SUSE-SU-2025:01983-1SUSE-SU-2025:02173-1SUSE-SU-2025:02262-1SUSE-SU-2025:02334-1

Timeline

  1. 10-05-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.18% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu116 products
  • linuxAll versions (No fix recorded) | < 5.4.0-169.187 | < 5.15.0-91.101
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1116.126 | < 5.15.0-1051.56
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ddbaf13e3609442b64abb931ac21527772d87980, < 6c3653627397a0d6eab19b20a59423e118985a6b | ≥ ddbaf13e3609442b64abb931ac21527772d87980, < 3efcbf25e5ab4d4ad1b7e6ba0869ff85540e3f6e | ≥ ddbaf13e3609442b64abb931ac21527772d87980, < a6650d27ab2c12a8ee750f396edb5ac8b4558b2e | ≥ ddbaf13e3609442b64abb931ac21527772d87980, < 746b363bef41cc159c051c47f9e30800bc6b520d | ≥ ddbaf13e3609442b64abb931ac21527772d87980, < a5c2a467e9e789ae0891de55b766daac52e3b7b3 | ≥ ddbaf13e3609442b64abb931ac21527772d87980, < 179c65828593aff1f444e15debd40a477cb23cf4 | ≥ ddbaf13e3609442b64abb931ac21527772d87980, < 73f7b171b7c09139eb3c6a5677c200dc1be5f318 | 2.6.24
  • linux_kernel< 4.14.326 | ≥ 4.15, < 4.19.295 | ≥ 4.20, < 5.4.257 | ≥ 5.5, < 5.10.195 | ≥ 5.11, < 5.15.131 | ≥ 5.16, < 6.1.52 | ≥ 6.2, < 6.3 | 6.3:rc1 | 6.3:rc2 | 6.3:rc3 | 6.3:rc4 | 6.3:rc5 | 6.3:rc6
Debian1 product
  • linux< 6.1.52-1 | < 6.3.7-1

3 vendors · 119 products

References

11 links
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