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| author | Florian Westphal <fw@strlen.de> | 2023-08-12 13:05:16 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-26 14:23:33 +0200 |
| commit | 1adaec4758d1cefbf348a291ad9b752aaa10f8d3 (patch) | |
| tree | 2dd36b57e0179e805b88c34dd4045c57f1ed7123 /net/unix/af_unix.c | |
| parent | 82109740d6105c6fc5d354247e4c3cb360b5c3a9 (diff) | |
netfilter: nf_tables: deactivate catchall elements in next generation
[ Upstream commit 90e5b3462efa37b8bba82d7c4e63683856e188af ]
When flushing, individual set elements are disabled in the next
generation via the ->flush callback.
Catchall elements are not disabled. This is incorrect and may lead to
double-deactivations of catchall elements which then results in memory
leaks:
WARNING: CPU: 1 PID: 3300 at include/net/netfilter/nf_tables.h:1172 nft_map_deactivate+0x549/0x730
CPU: 1 PID: 3300 Comm: nft Not tainted 6.5.0-rc5+ #60
RIP: 0010:nft_map_deactivate+0x549/0x730
[..]
? nft_map_deactivate+0x549/0x730
nf_tables_delset+0xb66/0xeb0
(the warn is due to nft_use_dec() detecting underflow).
Fixes: aaa31047a6d2 ("netfilter: nftables: add catch-all set element support")
Reported-by: lonial con <kongln9170@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions