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Vulnerability Change Records for CVE-2021-47278

Change History

New CVE Received by NIST 5/21/2024 11:15:16 AM

Action Type Old Value New Value
Added Description

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

bus: mhi: pci_generic: Fix possible use-after-free in mhi_pci_remove()

This driver's remove path calls del_timer(). However, that function
does not wait until the timer handler finishes. This means that the
timer handler may still be running after the driver's remove function
has finished, which would result in a use-after-free.

Fix by calling del_timer_sync(), which makes sure the timer handler
has finished, and unable to re-schedule itself.
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/0b67808ade8893a1b3608ddd74fac7854786c919 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/c597d5c59c7a6417dba06590f59b922e01188e8d [No types assigned]