Bug 4171 - BUG: kernel NULL pointer dereference, address: 0000000000000008
Summary: BUG: kernel NULL pointer dereference, address: 0000000000000008
Status: RESOLVED FIXED
Alias: None
Product: ANCK 5.10 Dev
Classification: ANCK
Component: net (show other bugs) net
Version: 5.10.y-13
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: XuanZhuo
QA Contact: shuming
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-02-22 08:55 UTC by ljubomir
Modified: 2023-02-28 19:39 UTC (History)
2 users (show)

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Description ljubomir inspur_group 2023-02-22 08:55:28 UTC 
Description of problem:

Kernel fault injection test reports null-ptr-deref as follows:

    BUG: kernel NULL pointer dereference, address: 0000000000000008
    RIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114
    Call Trace:
     <TASK>
     raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87
     call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944
     unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982
     unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879
     register_netdevice+0x9a8/0xb90 net/core/dev.c:10083
     ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659
     ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229
     mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316
Comment 1 maqiao alibaba_cloud_group 2023-02-28 19:39:13 UTC 
merged: https://gitee.com/anolis/cloud-kernel/pulls/1227