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| author | Ziyang Xuan <[email protected]> | 2024-04-07 06:56:05 +0000 |
|---|---|---|
| committer | Pablo Neira Ayuso <[email protected]> | 2024-04-11 10:09:11 +0000 |
| commit | d78d867dcea69c328db30df665be5be7d0148484 (patch) | |
| tree | 54376b4ae17a717756826f4d8592195a307fe5e3 /net/unix/af_unix.c | |
| parent | netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() (diff) | |
| download | kernel-d78d867dcea69c328db30df665be5be7d0148484.tar.gz kernel-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 <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions