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(parent: efccf65) | patch
net: hns3: fix debugfs concurrency issue between kfree buffer and read
authorHao Chen <chenhao418@huawei.com>
Wed, 6 Sep 2023 07:20:15 +0000 (15:20 +0800)
committerPaolo Abeni <pabeni@redhat.com>
Thu, 7 Sep 2023 09:08:03 +0000 (11:08 +0200)
commitc295160b1d95e885f1af4586a221cb221d232d10
treeb83020b05bed0ca0b4bd428f083904e37fac4ab5tree | snapshot
parentefccf655e99b6907ca07a466924e91805892e7d3commit | diff
net: hns3: fix debugfs concurrency issue between kfree buffer and read

Now in hns3_dbg_uninit(), there may be concurrency between
kfree buffer and read, it may result in memory error.

Moving debugfs_remove_recursive() in front of kfree buffer to ensure
they don't happen at the same time.

Fixes: 5e69ea7ee2a6 ("net: hns3: refactor the debugfs process")
Signed-off-by: Hao Chen <chenhao418@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c diff | blob | history
Domain: System / Kernel;