CVE-2026-23188 net: usb: r8152: fix resume reset deadlock
A deadlock in the r8152 USB network driver during device resume can cause a system panic, requiring a kernel patch to fix.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-23188?
CVE-2026-23188 is a medium-severity vulnerability in Linux kernel, published on 14 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
net: usb: r8152: fix resume reset deadlock
rtl8152 can trigger device reset during reset which potentially can result in a deadlock:
**** DPM device timeout after 10 seconds; 15 seconds until panic **** Call Trace: <TASK> schedule+0x483/0x1370 schedule_preempt_disabled+0x15/0x30 __mutex_lock_common+0x1fd/0x470 __rtl8152_set_mac_address+0x80/0x1f0 dev_set_mac_address+0x7f/0x150 rtl8152_post_reset+0x72/0x150 usb_reset_device+0x1d0/0x220 rtl8152_resume+0x99/0xc0 usb_resume_interface+0x3e/0xc0 usb_resume_both+0x104/0x150 usb_resume+0x22/0x110
The problem is that rtl8152 resume calls reset under tp->control mutex while reset basically re-enters rtl8152 and attempts to acquire the same tp->control lock once again.
Reset INACCESSIBLE device outside of tp->control mutex scope to avoid recursive mutex_lock() deadlock.
Weakness: CWE-667
Which versions are affected by CVE-2026-23188?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-23188?
Apply the vendor's patch.
Is CVE-2026-23188 being exploited?
There is no known exploitation of CVE-2026-23188 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-23188, DEBIAN-CVE-2026-23188, GHSA-hjjf-xjvr-567j, ROOT-OS-DEBIAN-13-CVE-2026-23188, UBUNTU-CVE-2026-23188.