Answer in brief
CVE-2026-74302 records a Unknown severity vulnerability in Bluetooth: hci_core: Fix UAF in hci_unregister_dev(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0d151a103775dd9645c78c97f77d6e2a5298d913 <48c7ad6afcc58c2cda11fed39791708103b6a644 || >=0d151a103775dd9645c78c97f77d6e2a5298d913 <a0fd1086a57b982f8c24ae4ab165c2af39fe1735 || >=0d151a103775dd9645c78c97f77d6e2a5298d913 <672d52d9412252e61b8de8d773ccdf5a277cf540 || >=0d151a103775dd9645c78c97f77d6e2a5298d913 <5edcc018fa6e80b2c478454a4a8229c23d67c181 || 48542881997e17b49dc16b93fe910e0cfcf7a9f9 || 9cfc84b1d464cc024286f42a090718f9067b80ed || ddeda6ca5f218b668b560d90fc31ae469adbfd92 || d2ce562a5aff1dcd0c50d9808ea825ef90da909f || 96600c2e5ee8213dbab5df1617293d8e847bb4fa || d6cbce18370641a21dd889e8613d8153df15eb39 || 3f939bd73fed12dddc2a32a76116c19ca47c7678 || >=4.19.319 <4.20 || >=5.4.281 <5.5 || >=5.10.223 <5.11 || >=5.15.164 <5.16 || >=6.1.101 <6.2 || >=6.6.42 <6.7 || >=6.9.11 <6.10 | 48c7ad6afcc58c2cda11fed39791708103b6a644, a0fd1086a57b982f8c24ae4ab165c2af39fe1735, 672d52d9412252e61b8de8d773ccdf5a277cf540, 5edcc018fa6e80b2c478454a4a8229c23d67c181, 4.20, 5.5, 5.11, 5.16, 6.2, 6.7, 6.10 |
| Linux/Linuxgeneric | 6.10 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74302 records a Unknown severity vulnerability in Bluetooth: hci_core: Fix UAF in hci_unregister_dev(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0d151a103775dd9645c78c97f77d6e2a5298d913 <48c7ad6afcc58c2cda11fed39791708103b6a644 || >=0d151a103775dd9645c78c97f77d6e2a5298d913 <a0fd1086a57b982f8c24ae4ab165c2af39fe1735 || >=0d151a103775dd9645c78c97f77d6e2a5298d913 <672d52d9412252e61b8de8d773ccdf5a277cf540 || >=0d151a103775dd9645c78c97f77d6e2a5298d913 <5edcc018fa6e80b2c478454a4a8229c23d67c181 || 48542881997e17b49dc16b93fe910e0cfcf7a9f9 || 9cfc84b1d464cc024286f42a090718f9067b80ed || ddeda6ca5f218b668b560d90fc31ae469adbfd92 || d2ce562a5aff1dcd0c50d9808ea825ef90da909f || 96600c2e5ee8213dbab5df1617293d8e847bb4fa || d6cbce18370641a21dd889e8613d8153df15eb39 || 3f939bd73fed12dddc2a32a76116c19ca47c7678 || >=4.19.319 <4.20 || >=5.4.281 <5.5 || >=5.10.223 <5.11 || >=5.15.164 <5.16 || >=6.1.101 <6.2 || >=6.6.42 <6.7 || >=6.9.11 <6.10 | 48c7ad6afcc58c2cda11fed39791708103b6a644, a0fd1086a57b982f8c24ae4ab165c2af39fe1735, 672d52d9412252e61b8de8d773ccdf5a277cf540, 5edcc018fa6e80b2c478454a4a8229c23d67c181, 4.20, 5.5, 5.11, 5.16, 6.2, 6.7, 6.10 |
| Linux/Linuxgeneric | 6.10 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.