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| author | Ziyang Xuan <[email protected]> | 2024-04-07 06:56:04 +0000 |
|---|---|---|
| committer | Pablo Neira Ayuso <[email protected]> | 2024-04-11 10:08:34 +0000 |
| commit | f969eb84ce482331a991079ab7a5c4dc3b7f89bf (patch) | |
| tree | 69f7a9d0a380a20ee5c08c2c09effd1b57330577 /net/unix/af_unix.c | |
| parent | r8169: fix LED-related deadlock on module removal (diff) | |
| download | kernel-f969eb84ce482331a991079ab7a5c4dc3b7f89bf.tar.gz kernel-f969eb84ce482331a991079ab7a5c4dc3b7f89bf.zip | |
netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()
nft_unregister_expr() can concurrent with __nft_expr_type_get(),
and there is not any protection when iterate over nf_tables_expressions
list in __nft_expr_type_get(). Therefore, there is potential data-race
of nf_tables_expressions list entry.
Use list_for_each_entry_rcu() to iterate over nf_tables_expressions
list in __nft_expr_type_get(), and use rcu_read_lock() in the caller
nft_expr_type_get() to protect the entire type query process.
Fixes: ef1f7df9170d ("netfilter: nf_tables: expression ops overloading")
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