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| author | Sishuai Gong <sishuai.system@gmail.com> | 2023-08-10 21:12:42 +0200 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2023-08-16 00:05:15 +0200 |
| commit | 5310760af1d4fbea1452bfc77db5f9a680f7ae47 (patch) | |
| tree | 52c1ffadb87df2163b19482708e37ca567bc1638 /scripts | |
| parent | netfilter: set default timeout to 3 secs for sctp shutdown send and recv state (diff) | |
| download | linux-5310760af1d4fbea1452bfc77db5f9a680f7ae47.tar.xz linux-5310760af1d4fbea1452bfc77db5f9a680f7ae47.zip | |
ipvs: fix racy memcpy in proc_do_sync_threshold
When two threads run proc_do_sync_threshold() in parallel,
data races could happen between the two memcpy():
Thread-1 Thread-2
memcpy(val, valp, sizeof(val));
memcpy(valp, val, sizeof(val));
This race might mess up the (struct ctl_table *) table->data,
so we add a mutex lock to serialize them.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Link: https://lore.kernel.org/netdev/B6988E90-0A1E-4B85-BF26-2DAF6D482433@gmail.com/
Signed-off-by: Sishuai Gong <sishuai.system@gmail.com>
Acked-by: Simon Horman <horms@kernel.org>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions