tipc: Dont send random pad bytes in RESET/ACTIVATE messages

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The interface name is passed in a fixed length (TIPC_MAX_IF_NAME) buffer.
Replace the strcpy(data, l->if_name) with memcpy() so that the
pad bytes are actually written (l->if_name[] is zero padded)
rather than sending random bytes from the skb to the remote system.

Replace two other strcpy() with strscpy().

Fixes: e74a386d70 ("tipc: remove pre-allocated message header in link struct")
Signed-off-by: David Laight <david.laight.linux@gmail.com>
Reviewed-by: Tung Nguyen <tung.quang.nguyen@est.tech>
Link: https://patch.msgid.link/20260829115813.188600-1-david.laight.linux@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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David Laight 2026-08-29 12:58:12 +01:00 • committed by Jakub Kicinski

parent b3b76e9f4f

commit 81c600c263

1 changed files with 3 additions and 3 deletions

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net/tipc/link.c

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