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CVE-2024-41063— Bluetooth: hci_core: cancel all works upon hci_unregister_dev()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于在hci_unregister_dev函数期间，未取消所有工作，导致在销毁工作队列时可能发生死锁。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 26

VendorProduct Version RangeStatus
Linux Linux e0b278650f07acf2e0932149183458468a731c03< 48542881997e17b49dc16b93fe910e0cfcf7a9f9 affected
98fb98fd37e42fd4ce13ff657ea64503e24b6090< 9cfc84b1d464cc024286f42a090718f9067b80ed affected
6dd0a9dfa99f8990a08eb8fdd8e79bee31c7d8e2< ddeda6ca5f218b668b560d90fc31ae469adbfd92 affected
da4569d450b193e39e87119fd316c0291b585d14< d2ce562a5aff1dcd0c50d9808ea825ef90da909f affected
45085686b9559bfbe3a4f41d3d695a520668f5e1< 96600c2e5ee8213dbab5df1617293d8e847bb4fa affected
2ab9a19d896f5a0dd386e1f001c5309bc35f433b< d6cbce18370641a21dd889e8613d8153df15eb39 affected
2449007d3f73b2842c9734f45f0aadb522daf592< 3f939bd73fed12dddc2a32a76116c19ca47c7678 affected
2449007d3f73b2842c9734f45f0aadb522daf592< 0d151a103775dd9645c78c97f77d6e2a5298d913 affected
… +18 more rows
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I. Basic Information for CVE-2024-41063

Vulnerability Information
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Vulnerability Title
Bluetooth: hci_core: cancel all works upon hci_unregister_dev()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: cancel all works upon hci_unregister_dev() syzbot is reporting that calling hci_release_dev() from hci_error_reset() due to hci_dev_put() from hci_error_reset() can cause deadlock at destroy_workqueue(), for hci_error_reset() is called from hdev->req_workqueue which destroy_workqueue() needs to flush. We need to make sure that hdev->{rx_work,cmd_work,tx_work} which are queued into hdev->workqueue and hdev->{power_on,error_reset} which are queued into hdev->req_workqueue are no longer running by the moment destroy_workqueue(hdev->workqueue); destroy_workqueue(hdev->req_workqueue); are called from hci_release_dev(). Call cancel_work_sync() on these work items from hci_unregister_dev() as soon as hdev->list is removed from hci_dev_list.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于在hci_unregister_dev函数期间，未取消所有工作，导致在销毁工作队列时可能发生死锁。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux e0b278650f07acf2e0932149183458468a731c03 ~ 48542881997e17b49dc16b93fe910e0cfcf7a9f9 -
Linux Linux 6.8 -

II. Public POCs for CVE-2024-41063

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III. Intelligence Information for CVE-2024-41063

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Other References for CVE-2024-41063 (8)

Same Patch Batch · Linux · 2024-07-29 · 121 CVEs total

CVE-2024-41040 9.8 CRITICAL net/sched: Fix UAF when resolving a clash
CVE-2024-41081 9.8 CRITICAL ila: block BH in ila_output()
CVE-2024-41073 9.8 CRITICAL nvme: avoid double free special payload
CVE-2024-41091 8.8 HIGH tun: add missing verification for short frame
CVE-2024-41090 8.8 HIGH tap: add missing verification for short frame
CVE-2024-41046 8.8 HIGH net: ethernet: lantiq_etop: fix double free in detach
CVE-2024-42083 8.8 HIGH ionic: fix kernel panic due to multi-buffer handling
CVE-2024-41062 8.8 HIGH bluetooth/l2cap: sync sock recv cb and release
CVE-2024-41045 7.8 HIGH bpf: Defer work in bpf_timer_cancel_and_free
CVE-2024-41096 7.8 HIGH PCI/MSI: Fix UAF in msi_capability_init
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-41051 7.8 HIGH cachefiles: wait for ondemand_object_worker to finish when dropping object
CVE-2024-41057 7.8 HIGH cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
CVE-2024-41060 7.8 HIGH drm/radeon: check bo_va->bo is non-NULL before using it
CVE-2024-41059 7.8 HIGH hfsplus: fix uninit-value in copy_name
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes
CVE-2024-42075 7.8 HIGH bpf: Fix remap of arena.
CVE-2024-42066 7.8 HIGH drm/xe: Fix potential integer overflow in page size calculation
CVE-2024-42064 7.8 HIGH drm/amd/display: Skip pipe if the pipe idx not set properly
CVE-2024-41086 7.8 HIGH bcachefs: Fix sb_field_downgrade validation

Showing top 20 of 121 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-41063

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