[PATCH 0/2] ax25: fix NPD and UAF bugs when detaching ax25 device

From: Duoming Zhou
Date: Thu Jan 27 2022 - 23:56:01 EST


There are NPD and UAF bugs when detaching ax25 device, we
use lock and refcount to mitigate these bugs.

Duoming Zhou (2):
ax25: improve the incomplete fix to avoid UAF and NPD bugs
ax25: add refcount in ax25_dev to avoid UAF bugs

include/net/ax25.h | 10 ++++++++++
net/ax25/af_ax25.c | 11 ++++++++---
net/ax25/ax25_dev.c | 12 ++++++++++--
net/ax25/ax25_route.c | 3 +++
4 files changed, 31 insertions(+), 5 deletions(-)

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2.17.1