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CVE-2024-54460— Bluetooth: iso: Fix circular lock in iso_listen_bis

EPSS 0.01% · P3
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I. Basic Information for CVE-2024-54460

Vulnerability Information
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Vulnerability Title
Bluetooth: iso: Fix circular lock in iso_listen_bis
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: iso: Fix circular lock in iso_listen_bis This fixes the circular locking dependency warning below, by releasing the socket lock before enterning iso_listen_bis, to avoid any potential deadlock with hdev lock. [ 75.307983] ====================================================== [ 75.307984] WARNING: possible circular locking dependency detected [ 75.307985] 6.12.0-rc6+ #22 Not tainted [ 75.307987] ------------------------------------------------------ [ 75.307987] kworker/u81:2/2623 is trying to acquire lock: [ 75.307988] ffff8fde1769da58 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO) at: iso_connect_cfm+0x253/0x840 [bluetooth] [ 75.308021] but task is already holding lock: [ 75.308022] ffff8fdd61a10078 (&hdev->lock) at: hci_le_per_adv_report_evt+0x47/0x2f0 [bluetooth] [ 75.308053] which lock already depends on the new lock. [ 75.308054] the existing dependency chain (in reverse order) is: [ 75.308055] -> #1 (&hdev->lock){+.+.}-{3:3}: [ 75.308057] __mutex_lock+0xad/0xc50 [ 75.308061] mutex_lock_nested+0x1b/0x30 [ 75.308063] iso_sock_listen+0x143/0x5c0 [bluetooth] [ 75.308085] __sys_listen_socket+0x49/0x60 [ 75.308088] __x64_sys_listen+0x4c/0x90 [ 75.308090] x64_sys_call+0x2517/0x25f0 [ 75.308092] do_syscall_64+0x87/0x150 [ 75.308095] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 75.308098] -> #0 (sk_lock-AF_BLUETOOTH-BTPROTO_ISO){+.+.}-{0:0}: [ 75.308100] __lock_acquire+0x155e/0x25f0 [ 75.308103] lock_acquire+0xc9/0x300 [ 75.308105] lock_sock_nested+0x32/0x90 [ 75.308107] iso_connect_cfm+0x253/0x840 [bluetooth] [ 75.308128] hci_connect_cfm+0x6c/0x190 [bluetooth] [ 75.308155] hci_le_per_adv_report_evt+0x27b/0x2f0 [bluetooth] [ 75.308180] hci_le_meta_evt+0xe7/0x200 [bluetooth] [ 75.308206] hci_event_packet+0x21f/0x5c0 [bluetooth] [ 75.308230] hci_rx_work+0x3ae/0xb10 [bluetooth] [ 75.308254] process_one_work+0x212/0x740 [ 75.308256] worker_thread+0x1bd/0x3a0 [ 75.308258] kthread+0xe4/0x120 [ 75.308259] ret_from_fork+0x44/0x70 [ 75.308261] ret_from_fork_asm+0x1a/0x30 [ 75.308263] other info that might help us debug this: [ 75.308264] Possible unsafe locking scenario: [ 75.308264] CPU0 CPU1 [ 75.308265] ---- ---- [ 75.308265] lock(&hdev->lock); [ 75.308267] lock(sk_lock- AF_BLUETOOTH-BTPROTO_ISO); [ 75.308268] lock(&hdev->lock); [ 75.308269] lock(sk_lock-AF_BLUETOOTH-BTPROTO_ISO); [ 75.308270] *** DEADLOCK *** [ 75.308271] 4 locks held by kworker/u81:2/2623: [ 75.308272] #0: ffff8fdd66e52148 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work+0x443/0x740 [ 75.308276] #1: ffffafb488b7fe48 ((work_completion)(&hdev->rx_work)), at: process_one_work+0x1ce/0x740 [ 75.308280] #2: ffff8fdd61a10078 (&hdev->lock){+.+.}-{3:3} at: hci_le_per_adv_report_evt+0x47/0x2f0 [bluetooth] [ 75.308304] #3: ffffffffb6ba4900 (rcu_read_lock){....}-{1:2}, at: hci_connect_cfm+0x29/0x190 [bluetooth]
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于蓝牙ISO层的循环锁依赖问题，可能导致死锁。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 02171da6e86a73e1b343b36722f5d9d5c04b3539 ~ c541d7b5e17987ed330798b07d4ad508859c1c93 -
LinuxLinux 6.9 -

II. Public POCs for CVE-2024-54460

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III. Intelligence Information for CVE-2024-54460

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Same Patch Batch · Linux · 2025-01-11 · 67 CVEs total

CVE-2024-57793virt: tdx-guest: Just leak decrypted memory on unrecoverable errors
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CVE-2024-57806btrfs: fix transaction atomicity bug when enabling simple quotas
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CVE-2024-57804scsi: mpi3mr: Fix corrupt config pages PHY state is switched in sysfs
CVE-2024-57800ALSA: memalloc: prefer dma_mapping_error() over explicit address checking
CVE-2024-57799phy: rockchip: samsung-hdptx: Set drvdata before enabling runtime PM
CVE-2024-57798drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()
CVE-2024-57807scsi: megaraid_sas: Fix for a potential deadlock
CVE-2024-57792power: supply: gpio-charger: Fix set charge current limits
CVE-2024-57791net/smc: check return value of sock_recvmsg when draining clc data
CVE-2024-56788net: ethernet: oa_tc6: fix tx skb race condition between reference pointers
CVE-2024-56372net: tun: fix tun_napi_alloc_frags()
CVE-2024-56369drm/modes: Avoid divide by zero harder in drm_mode_vrefresh()
CVE-2024-56368ring-buffer: Fix overflow in __rb_map_vma
CVE-2024-55916Drivers: hv: util: Avoid accessing a ringbuffer not initialized yet
CVE-2024-55881KVM: x86: Play nice with protected guests in complete_hypercall_exit()
CVE-2024-54193accel/ivpu: Fix WARN in ivpu_ipc_send_receive_internal()

Showing top 20 of 67 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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