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CVE-2024-36012— Bluetooth: msft: fix slab-use-after-free in msft_do_close()

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，该漏洞源于内存释放后重用。

CVSS 7.8 · High EPSS 0.21% · P11

Possible ATT&CK Techniques 2 AI

T1206 T1211 · Exploitation for Stealth

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux bf6a4e30ffbd9e9ef8934582feb937f6532f8b68< e3880b531b68f98d3941d83f2f6dd11cf4fd6b76 affected
bf6a4e30ffbd9e9ef8934582feb937f6532f8b68< a85a60e62355e3bf4802dead7938966824b23940 affected
bf6a4e30ffbd9e9ef8934582feb937f6532f8b68< 4f1de02de07748da80a8178879bc7a1df37fdf56 affected
bf6a4e30ffbd9e9ef8934582feb937f6532f8b68< 10f9f426ac6e752c8d87bf4346930ba347aaabac affected
5.12 affected
< 5.12 unaffected
6.1.91≤ 6.1.* unaffected
6.6.31≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-36012

Vulnerability Information
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Vulnerability Title
Bluetooth: msft: fix slab-use-after-free in msft_do_close()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: msft: fix slab-use-after-free in msft_do_close() Tying the msft->data lifetime to hdev by freeing it in hci_release_dev() to fix the following case: [use] msft_do_close() msft = hdev->msft_data; if (!msft) ...(1) <- passed. return; mutex_lock(&msft->filter_lock); ...(4) <- used after freed. [free] msft_unregister() msft = hdev->msft_data; hdev->msft_data = NULL; ...(2) kfree(msft); ...(3) <- msft is freed. ================================================================== BUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:587 [inline] BUG: KASAN: slab-use-after-free in __mutex_lock+0x8f/0xc30 kernel/locking/mutex.c:752 Read of size 8 at addr ffff888106cbbca8 by task kworker/u5:2/309
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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，该漏洞源于内存释放后重用。
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 bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 ~ e3880b531b68f98d3941d83f2f6dd11cf4fd6b76 -
Linux Linux 5.12 -

II. Public POCs for CVE-2024-36012

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III. Intelligence Information for CVE-2024-36012

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Other References for CVE-2024-36012 (4)

Same Patch Batch · Linux · 2024-05-23 · 3 CVEs total

CVE-2024-36013 8.8 HIGH Bluetooth: L2CAP: Fix slab-use-after-free in l2cap_connect()
CVE-2024-36011 Bluetooth: HCI: Fix potential null-ptr-deref

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-36012

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