CVE-2026-74530
- Source
- https://cve.org/CVERecord?id=CVE-2026-74530
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74530.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74530
- Downstream
- Published
- 2026-08-15T12:27:45Z
- Modified
- 2026-10-08T02:51:54Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Bluetooth: hci_sync: hold conn in hci_connect_big_sync() callback
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_sync: hold conn in hci_connect_big_sync() callback
There is theoretical UAF if the conn is freed while the hci_sync task is running.
Hold refcount to avoid that. Handle NULL hcon, return 0 + do nothing to match the previous behavior.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74530.json" }- References
-
- https://git.kernel.org/stable/c/2d91e6244b69d752503b2d44020d8b0e323dbd38
- https://git.kernel.org/stable/c/56e78b670356caab0b607e8aad4cf819a1909d07
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74530.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74530
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced024421cf39923927ab2b5fe895d1d922b9abe67fFixed2d91e6244b69d752503b2d44020d8b0e323dbd38Fixed56e78b670356caab0b607e8aad4cf819a1909d07
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.12.28Fixed6.13
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.14.6Fixed6.15
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced620810ac1f7f1133a9ac403e132b3ad6995ddf39
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedee0586ad64a805eaf1a9a10100e908627a561e34
Affected versions
v6.*
v6.12.100
v6.12.101
v6.12.102
v6.12.103
v6.12.104
v6.12.105
v6.12.106
v6.12.107
v6.12.108
v6.12.109
v6.12.110
v6.12.111
v6.12.112
v6.12.28
v6.12.29
v6.12.30
v6.12.31
v6.12.32
v6.12.33
v6.12.34
v6.12.35
v6.12.36
v6.12.37
v6.12.38
v6.12.39
v6.12.40
v6.12.41
v6.12.42
v6.12.43
v6.12.44
v6.12.45
v6.12.46
v6.12.47
v6.12.48
v6.12.49
v6.12.50
v6.12.51
v6.12.52
v6.12.53
v6.12.54
v6.12.55
v6.12.56
v6.12.57
v6.12.58
v6.12.59
v6.12.60
v6.12.61
v6.12.62
v6.12.63
v6.12.64
v6.12.65
v6.12.66
v6.12.67
v6.12.68
v6.12.69
v6.12.70
v6.12.71
v6.12.72
v6.12.73
v6.12.74
v6.12.75
v6.12.76
v6.12.77
v6.12.78
v6.12.79
v6.12.80
v6.12.81
v6.12.82
v6.12.83
v6.12.84
v6.12.85
v6.12.86
v6.12.87
v6.12.88
v6.12.89
v6.12.90
v6.12.91
v6.12.92
v6.12.93
v6.12.94
v6.12.95
v6.12.96
v6.12.97
v6.12.98
v6.12.99
v6.14.10
v6.14.11
v6.14.6
v6.14.7
v6.14.8
v6.14.9