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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9d2c9488ce
There are several functions which might reallocate skb data. Currently some places keep reusing their old ethhdr pointer regardless of whether they became invalid after such a reallocation or not. This potentially leads to kernel paging errors. This patch fixes these by refetching the ethdr pointer after the potential reallocations. Signed-off-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
40 lines
1.6 KiB
C
40 lines
1.6 KiB
C
/* Copyright (C) 2009-2013 B.A.T.M.A.N. contributors:
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*
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* Marek Lindner
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#ifndef _NET_BATMAN_ADV_GATEWAY_CLIENT_H_
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#define _NET_BATMAN_ADV_GATEWAY_CLIENT_H_
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void batadv_gw_deselect(struct batadv_priv *bat_priv);
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void batadv_gw_election(struct batadv_priv *bat_priv);
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struct batadv_orig_node *
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batadv_gw_get_selected_orig(struct batadv_priv *bat_priv);
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void batadv_gw_check_election(struct batadv_priv *bat_priv,
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struct batadv_orig_node *orig_node);
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void batadv_gw_node_update(struct batadv_priv *bat_priv,
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struct batadv_orig_node *orig_node,
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uint8_t new_gwflags);
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void batadv_gw_node_delete(struct batadv_priv *bat_priv,
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struct batadv_orig_node *orig_node);
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void batadv_gw_node_purge(struct batadv_priv *bat_priv);
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int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset);
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bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len);
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bool batadv_gw_out_of_range(struct batadv_priv *bat_priv, struct sk_buff *skb);
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#endif /* _NET_BATMAN_ADV_GATEWAY_CLIENT_H_ */
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