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Vulnerability Change Records for CVE-2022-49686

Change History

New CVE Received from kernel.org 2/26/2025 2:01:43 AM

Action Type Old Value New Value
Added Description

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

usb: gadget: uvc: fix list double add in uvcg_video_pump

A panic can occur if the endpoint becomes disabled and the
uvcg_video_pump adds the request back to the req_free list after it has
already been queued to the endpoint. The endpoint complete will add the
request back to the req_free list. Invalidate the local request handle
once it's been queued.

<6>[  246.796704][T13726] configfs-gadget gadget: uvc: uvc_function_set_alt(1, 0)
<3>[  246.797078][   T26] list_add double add: new=ffffff878bee5c40, prev=ffffff878bee5c40, next=ffffff878b0f0a90.
<6>[  246.797213][   T26] ------------[ cut here ]------------
<2>[  246.797224][   T26] kernel BUG at lib/list_debug.c:31!
<6>[  246.807073][   T26] Call trace:
<6>[  246.807180][   T26]  uvcg_video_pump+0x364/0x38c
<6>[  246.807366][   T26]  process_one_work+0x2a4/0x544
<6>[  246.807394][   T26]  worker_thread+0x350/0x784
<6>[  246.807442][   T26]  kthread+0x2ac/0x320
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/96163f835e65f8c9897487fac965819f0651d671
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/d95ac8b920de1d39525fadc408ce675697626ca6