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CVE-2024-41062— bluetooth/l2cap: sync sock recv cb and release

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，该漏洞源于在关闭套接字和接收回调之间存在竞态条件，因为前者释放了套接字，而后者在没有锁保护的情况下访问它。

CVSS 8.8 · High EPSS 0.31% · P22

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< 59a3ccd749b2550392ee531b4d727022eae4c89f affected
5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< 9c0b7d61cf3c00f87f2529b5b8b785f0f65089aa affected
5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< 605572e64cd9cebb05ed609d96cff05b50d18cdf affected
5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< b803f30ea23e0968b6c8285c42adf0d862ab2bf6 affected
5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< 3b732449b78183d17178db40be3a4401cf3cd629 affected
5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< 89e856e124f9ae548572c56b1b70c2255705f8fe affected
3.4 affected
< 3.4 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-41062

Vulnerability Information
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Vulnerability Title
bluetooth/l2cap: sync sock recv cb and release
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bluetooth/l2cap: sync sock recv cb and release The problem occurs between the system call to close the sock and hci_rx_work, where the former releases the sock and the latter accesses it without lock protection. CPU0 CPU1 ---- ---- sock_close hci_rx_work l2cap_sock_release hci_acldata_packet l2cap_sock_kill l2cap_recv_frame sk_free l2cap_conless_channel l2cap_sock_recv_cb If hci_rx_work processes the data that needs to be received before the sock is closed, then everything is normal; Otherwise, the work thread may access the released sock when receiving data. Add a chan mutex in the rx callback of the sock to achieve synchronization between the sock release and recv cb. Sock is dead, so set chan data to NULL, avoid others use invalid sock pointer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/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，该漏洞源于在关闭套接字和接收回调之间存在竞态条件，因为前者释放了套接字，而后者在没有锁保护的情况下访问它。
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 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa ~ 59a3ccd749b2550392ee531b4d727022eae4c89f -
Linux Linux 3.4 -

II. Public POCs for CVE-2024-41062

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III. Intelligence Information for CVE-2024-41062

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Patches & Fixes for CVE-2024-41062 (3)

Other References for CVE-2024-41062 (4)

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-2024-41073 9.8 CRITICAL nvme: avoid double free special payload
CVE-2024-41081 9.8 CRITICAL ila: block BH in ila_output()
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-2024-42064 7.8 HIGH drm/amd/display: Skip pipe if the pipe idx not set properly
CVE-2024-41070 7.8 HIGH KVM: PPC: Book3S HV: Prevent UAF in kvm_spapr_tce_attach_iommu_group()
CVE-2024-41041 7.8 HIGH udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().
CVE-2024-41045 7.8 HIGH bpf: Defer work in bpf_timer_cancel_and_free
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-42066 7.8 HIGH drm/xe: Fix potential integer overflow in page size calculation
CVE-2024-41051 7.8 HIGH cachefiles: wait for ondemand_object_worker to finish when dropping object
CVE-2024-42067 7.8 HIGH bpf: Take return from set_memory_rox() into account with bpf_jit_binary_lock_ro()
CVE-2024-42072 7.8 HIGH bpf: Fix may_goto with negative offset.
CVE-2024-42075 7.8 HIGH bpf: Fix remap of arena.
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes
CVE-2024-41059 7.8 HIGH hfsplus: fix uninit-value in copy_name
CVE-2024-42071 7.8 HIGH ionic: use dev_consume_skb_any outside of napi

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-2024-41062

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