CVE-2024-42112 net: txgbe: free isb resources at the right time

2024-07-3007:46:06

Linux

github.com

linux kernel

vulnerability

txgbe

msi

intx interrupt

device remove routine

irqs

isb memory

txgbe_close

txgbe_remove

txgbe_open

error handling path

AI Score

6.8

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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

net: txgbe: free isb resources at the right time

When using MSI/INTx interrupt, the shared interrupts are still being
handled in the device remove routine, before free IRQs. So isb memory
is still read after it is freed. Thus move wx_free_isb_resources()
from txgbe_close() to txgbe_remove(). And fix the improper isb free
action in txgbe_open() error handling path.