CVE-2026-74302
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2026-08-15
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix UAF in hci_unregister_dev() hci_unregister_dev() does not disable cmd_timer and ncmd_timer before the hci_dev structure is freed. If a timeout fires during device teardown, the callback dereferences freed memory (including the hdev->reset function pointer), leading to a use-after-free. Add disable_delayed_work_sync() calls alongside the existing disable_work_sync() calls to ensure both timers are fully quiesced before teardown proceeds.
Affected Software (19)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 96600c2e5ee8213dbab5df1617293d8e847bb4fa < c277f624cd99e4f0e0223fd039b7615feea4afdc |
| Linux | Linux | d6cbce18370641a21dd889e8613d8153df15eb39 < bce2eec05bce548b548aca52c1834540f97d5d60 |
| Linux | Linux | 0d151a103775dd9645c78c97f77d6e2a5298d913 < 48c7ad6afcc58c2cda11fed39791708103b6a644 |
| Linux | Linux | 0d151a103775dd9645c78c97f77d6e2a5298d913 < a0fd1086a57b982f8c24ae4ab165c2af39fe1735 |
| Linux | Linux | 0d151a103775dd9645c78c97f77d6e2a5298d913 < 672d52d9412252e61b8de8d773ccdf5a277cf540 |
| Linux | Linux | 0d151a103775dd9645c78c97f77d6e2a5298d913 < 5edcc018fa6e80b2c478454a4a8229c23d67c181 |
| Linux | Linux | 48542881997e17b49dc16b93fe910e0cfcf7a9f9 |
| Linux | Linux | 9cfc84b1d464cc024286f42a090718f9067b80ed |
| Linux | Linux | ddeda6ca5f218b668b560d90fc31ae469adbfd92 |
| Linux | Linux | d2ce562a5aff1dcd0c50d9808ea825ef90da909f |
| Linux | Linux | 3f939bd73fed12dddc2a32a76116c19ca47c7678 |
| Linux | Linux | 6.1.101 < 6.1.191 |
| Linux | Linux | 6.6.42 < 6.6.160 |
| Linux | Linux | 4.19.319 < 4.20 |
| Linux | Linux | 5.4.281 < 5.5 |
| Linux | Linux | 5.10.223 < 5.11 |
| Linux | Linux | 5.15.164 < 5.16 |
| Linux | Linux | 6.9.11 < 6.10 |
| Linux | Linux | 6.10 |