extensions: among: Fix for use with ebtables-restore

When restoring multiple rules which use among match, new size may be
smaller than the old one which caused invalid writes by the memcpy()
call. Expect this and realloc the match only if it needs to grow. Also
use realloc instead of freeing and allocating from scratch.

Fixes: 26753888720d8 ("nft: bridge: Rudimental among extension support")
Signed-off-by: Phil Sutter <phil@nwl.cc>

0 files changed, 0 insertions, 0 deletions