CVE-2021-47153

In the Linux kernel, the following vulnerability has been resolved: i2c:
i801: Don’t generate an interrupt on bus reset Now that the i2c-i801 driver
supports interrupts, setting the KILL bit in a attempt to recover from a
timed out transaction triggers an interrupt. Unfortunately, the interrupt
handler (i801_isr) is not prepared for this situation and will try to
process the interrupt as if it was signaling the end of a successful
transaction. In the case of a block transaction, this can result in an
out-of-range memory access. This condition was reproduced several times by
syzbot: https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e
https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e
https://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e
https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb
https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a
https://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79 So disable
interrupts while trying to reset the bus. Interrupts will be enabled again
for the following transaction.