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Kernel: Fix crash for merge paths on if no route is in BIRD

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There was a missing check for a NULL return value.
Also fixed an indenting error.

Thanks to Radu Anghel for reporting it:
https://bird.network.cz/pipermail/bird-users/2024-December/017977.html
This commit is contained in:
Maria Matejka 2024-12-19 11:00:15 +01:00
parent e7bd976178
commit b6caccfd45
1 changed files with 2 additions and 2 deletions
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4
nest/rt-table.c
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@ -5265,14 +5265,14 @@ krt_export_net(struct channel *c, const net_addr *a, linpool *lp)
if (c->ra_mode == RA_MERGED) if (c->ra_mode == RA_MERGED)
{ {
struct rt_export_feed *feed = rt_net_feed(c->table, a, NULL); struct rt_export_feed *feed = rt_net_feed(c->table, a, NULL);
if (!feed->count_routes) if (!feed || !feed->count_routes)
return NULL; return NULL;
if (!bmap_test(&c->export_accepted_map, feed->block[0].id)) if (!bmap_test(&c->export_accepted_map, feed->block[0].id))
return NULL; return NULL;
return rt_export_merged(c, feed, lp, 1); return rt_export_merged(c, feed, lp, 1);
} }
static _Thread_local rte best; static _Thread_local rte best;
best = rt_net_best(c->table, a); best = rt_net_best(c->table, a);