CVE-2022-50447

EPSS 0.0%
  • Published: 2025-10-01T12:15:37.177

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_conn: Fix crash on hci_create_cis_sync

When attempting to connect multiple ISO sockets without using
DEFER_SETUP may result in the following crash:

BUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0
Read of size 2 at addr 0000000000000036 by task kworker/u3:1/50

CPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted
6.0.0-rc7-02243-gb84a13ff4eda #4373
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),
BIOS 1.16.0-1.fc36 04/01/2014
Workqueue: hci0 hci_cmd_sync_work
Call Trace:

dump_stack_lvl+0x19/0x27
kasan_report+0xbc/0xf0
? hci_create_cis_sync+0x18b/0x2b0
hci_create_cis_sync+0x18b/0x2b0
? get_link_mode+0xd0/0xd0
? __ww_mutex_lock_slowpath+0x10/0x10
? mutex_lock+0xe0/0xe0
? get_link_mode+0xd0/0xd0
hci_cmd_sync_work+0x111/0x190
process_one_work+0x427/0x650
worker_thread+0x87/0x750
? process_one_work+0x650/0x650
kthread+0x14e/0x180
? kthread_exit+0x50/0x50
ret_from_fork+0x22/0x30

Related CVE by CWE

No related CWE found.

Top CVE for Vendor

No vendor taxonomy on this entry.

Recently Exploited Similar Vulnerabilities

No recent KEV-listed items for this vendor/product.

How to fix CVE-2022-50447

CVE-2022-50447 is a unknown severity vulnerability affecting the affected product.

Description: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix crash on hci_create_cis_sync When attempting to connect multiple ISO sockets without using DEFER_SETUP may result in the following crash: BUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0 Read of size 2 at addr 0000000000000036 by task kworker/u3:1/50 CPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted […]

Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public

How to Fix:

1 Identify affected systems

- Check if you're running the affected product

2 Immediate actions

- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access

3 Verification

- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)

4 Long-term prevention

- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations

Exploit Difficulty Assessment

HARD
⏱️ Time to Exploit: > 4 hours
🛠️ Skills Required: Advanced security expertise
💰 Public Exploits: Rare or not public

Vulnerability Timeline

Oct 01, 2025
Vulnerability Published

CVE details first published to NVD database

Nov 12, 2025
Imported to Database

Added to this CVE tracking system

Detection Rules & IOCs

No specific detection rules generated for this vulnerability type.

No vendor/product data available.