CVE-2024-41062— bluetooth/l2cap: sync sock recv cb and release
Possible ATT&CK Techniques 1AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< 605572e64cd9cebb05ed609d96cff05b50d18cdf | affected |
5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< b803f30ea23e0968b6c8285c42adf0d862ab2bf6 | affected | ||
5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< 3b732449b78183d17178db40be3a4401cf3cd629 | affected | ||
5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa< 89e856e124f9ae548572c56b1b70c2255705f8fe | affected | ||
3.4 | affected | ||
< 3.4 | unaffected | ||
6.1.101≤ 6.1.* | unaffected | ||
6.6.42≤ 6.6.* | unaffected | ||
| … +2 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
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
II. Public POCs for CVE-2024-41062
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2024-41062 (4)
Same Patch Batch · Linux · 2024-07-29 · 121 CVEs total
| CVE-2024-41089 | drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_hd_modes | |
| CVE-2024-42068 | bpf: Take return from set_memory_ro() into account with bpf_prog_lock_ro() | |
| CVE-2024-42067 | bpf: Take return from set_memory_rox() into account with bpf_jit_binary_lock_ro() | |
| CVE-2024-42066 | drm/xe: Fix potential integer overflow in page size calculation | |
| CVE-2024-42065 | drm/xe: Add a NULL check in xe_ttm_stolen_mgr_init | |
| CVE-2024-42063 | bpf: Mark bpf prog stack with kmsan_unposion_memory in interpreter mode | |
| CVE-2024-42064 | drm/amd/display: Skip pipe if the pipe idx not set properly | |
| CVE-2023-52887 | net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_s | |
| CVE-2024-41098 | ata: libata-core: Fix null pointer dereference on error | |
| CVE-2024-41097 | usb: atm: cxacru: fix endpoint checking in cxacru_bind() | |
| CVE-2024-41096 | PCI/MSI: Fix UAF in msi_capability_init | |
| CVE-2024-41095 | drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_ld_modes | |
| CVE-2024-41094 | drm/fbdev-dma: Only set smem_start is enable per module option | |
| CVE-2024-41093 | drm/amdgpu: avoid using null object of framebuffer | |
| CVE-2024-41092 | drm/i915/gt: Fix potential UAF by revoke of fence registers | |
| CVE-2024-41078 | btrfs: qgroup: fix quota root leak after quota disable failure | |
| CVE-2024-41081 | ila: block BH in ila_output() | |
| CVE-2024-41080 | io_uring: fix possible deadlock in io_register_iowq_max_workers() | |
| CVE-2024-41079 | nvmet: always initialize cqe.result | |
| CVE-2024-41076 | NFSv4: Fix memory leak in nfs4_set_security_label |
Showing top 20 of 121 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-64560
posix-cpu-timers: Prevent UAF caused by non-leader exec() ra - CVE-2026-64559
s390/pkey: Check length in PKEY_VERIFYPROTK ioctl - CVE-2026-64558
s390/pkey: Check length in pkey_pckmo handler implementation - CVE-2026-64556
perf/core: Detach event groups during remove_on_exec - CVE-2026-64557
Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_conne
Same vendor: Linux
- CVE-2026-64560
posix-cpu-timers: Prevent UAF caused by non-leader exec() ra - CVE-2026-64559
s390/pkey: Check length in PKEY_VERIFYPROTK ioctl - CVE-2026-64558
s390/pkey: Check length in pkey_pckmo handler implementation - CVE-2026-64556
perf/core: Detach event groups during remove_on_exec - CVE-2026-64557
Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_new_conne
V. Comments for CVE-2024-41062
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