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  <updated>2026-09-29T14:20:06.080178+00:00</updated>
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  <entry>
    <id>https://vulnerability.circl.lu/vuln/cve-2022-49936</id>
    <title>CVE-2022-49936 — USB: core: Prevent nested device-reset calls</title>
    <updated>2026-09-29T14:20:06.083509+00:00</updated>
    <content type="xhtml">
      <div xmlns="http://www.w3.org/1999/xhtml"><p><strong>Affected:</strong> Linux</p>
<p>In the Linux kernel, the following vulnerability has been resolved:</p>
<p>USB: core: Prevent nested device-reset calls</p>
<p>Automatic kernel fuzzing revealed a recursive locking violation in
usb-storage:</p>
<p>============================================
WARNING: possible recursive locking detected
5.18.0 #3 Not tainted
--------------------------------------------
kworker/1:3/1205 is trying to acquire lock:
ffff888018638db8 (&amp;us_interface_key[i]){+.+.}-{3:3}, at:
usb_stor_pre_reset+0x35/0x40 drivers/usb/storage/usb.c:230</p>
<p>but task is already holding lock:
ffff888018638db8 (&amp;us_interface_key[i]){+.+.}-{3:3}, at:
usb_stor_pre_reset+0x35/0x40 drivers/usb/storage/usb.c:230</p>
<p>...</p>
<p>stack backtrace:
CPU: 1 PID: 1205 Comm: kworker/1:3 Not tainted 5.18.0 #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.13.0-1ubuntu1.1 04/01/2014
Workqueue: usb_hub_wq hub_event
Call Trace:
&lt;TASK&gt;
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_deadlock_bug kernel/locking/lockdep.c:2988 [inline]
check_deadlock kernel/locking/lockdep.c:3031 [inline]
validate_chain kernel/locking/lockdep.c:3816 [inline]
__lock_acquire.cold+0x152/0x3ca kernel/locking/lockdep.c:5053
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x520 kernel/locking/lockdep.c:5630
__mutex_lock_common kernel/locking/mutex.c:603 [inline]
__mutex_lock+0x14f/0x1610 kernel/locking/mutex.c:747
usb_stor_pre_reset+0x35/0x40 drivers/usb/storage/usb.c:230
usb_reset_device+0x37d/…</p></div>
    </content>
    <link href="https://vulnerability.circl.lu/vuln/cve-2022-49936"/>
  </entry>
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