diff options
| author | Florian Westphal <fw@strlen.de> | 2026-07-30 20:38:53 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2026-07-31 15:58:08 +0200 |
| commit | 7defddefa95b3699b05b23bf3ceea94d872509bb (patch) | |
| tree | 23dcd3acabdbb5be875f2c9dcd2d2df6db2815d6 /include | |
| parent | cdd97fae0e96fc0f78418b93ca864f98cd63e99a (diff) | |
netfilter: ipset: switch to rcu work
In the initial ipset rhashtable conversion RFC series syzbot reported
following splat:
BUG: sleeping function [..] at kernel/irq_work.c:289
in_atomic(): 1, [..]
irq_work_sync.. kernel/irq_work.c:289
rhashtable_free_and_destroy.. lib/rhashtable.c:1295
hash_netport4_destroy.. net/netfilter/ipset/ip_set_hash_gen.h:420
ip_set_destroy_set_rcu.. net/netfilter/ipset/ip_set_core.c:1169
rcu_core.. kernel/rcu/tree.c:2897
This is because post-rhashtable-conversion hash implementation needs
to schedule in the destroy callback. At this time this isn't allowed.
Replace existing call_rcu() based destruction with rcu_work api.
Also allows to undo split of set destruction and gc work cancelling in
a future patch.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netfilter/ipset/ip_set.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h index cadae9b2578f..c46864cc6623 100644 --- a/include/linux/netfilter/ipset/ip_set.h +++ b/include/linux/netfilter/ipset/ip_set.h @@ -244,8 +244,8 @@ extern void ip_set_type_unregister(struct ip_set_type *set_type); /* A generic IP set */ struct ip_set { - /* For call_cru in destroy */ - struct rcu_head rcu; + /* for set destruction */ + struct rcu_work rwork; /* The name of the set */ char name[IPSET_MAXNAMELEN]; /* Lock protecting the set data */ |