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| author | Ziyang Xuan <william.xuanziyang@huawei.com> | 2024-04-07 14:56:05 +0800 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2024-04-11 12:09:11 +0200 |
| commit | d78d867dcea69c328db30df665be5be7d0148484 (patch) | |
| tree | 54376b4ae17a717756826f4d8592195a307fe5e3 /net/unix/af_unix.c | |
| parent | f969eb84ce482331a991079ab7a5c4dc3b7f89bf (diff) | |
| download | linux-d78d867dcea69c328db30df665be5be7d0148484.tar.gz linux-d78d867dcea69c328db30df665be5be7d0148484.tar.bz2 linux-d78d867dcea69c328db30df665be5be7d0148484.zip | |
netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()
nft_unregister_obj() can concurrent with __nft_obj_type_get(),
and there is not any protection when iterate over nf_tables_objects
list in __nft_obj_type_get(). Therefore, there is potential data-race
of nf_tables_objects list entry.
Use list_for_each_entry_rcu() to iterate over nf_tables_objects
list in __nft_obj_type_get(), and use rcu_read_lock() in the caller
nft_obj_type_get() to protect the entire type query process.
Fixes: e50092404c1b ("netfilter: nf_tables: add stateful objects")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions