Commit 4405b632 authored Aug 23, 2018 by Dedy Lansky Committed by Kalle Valo Aug 28, 2018

wil6210: fix invalid memory access for rx_buff_mgmt debugfs



Check rx_buff_mgmt is allocated before accessing its internal fields.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

parent b9010f10

drivers/net/wireless/ath/wil6210/debugfs.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1237,6 +1237,9 @@ static int wil_rx_buff_mgmt_debugfs_show(struct seq_file s, void data)
		int num_active;
		int num_free;

		if (!rbm->buff_arr)
		return -EINVAL;

		seq_printf(s, " size = %zu\n", rbm->size);
		seq_printf(s, " free_list_empty_cnt = %lu\n",
		rbm->free_list_empty_cnt);

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