Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.19 043/206] neigh_stat_seq_next() should increase position index | Date | Thu, 17 Sep 2020 22:05:19 -0400 |
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From: Vasily Averin <vvs@virtuozzo.com>
[ Upstream commit 1e3f9f073c47bee7c23e77316b07bc12338c5bba ]
if seq_file .next fuction does not change position index, read after some lseek can generate unexpected output.
https://bugzilla.kernel.org/show_bug.cgi?id=206283 Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- net/core/neighbour.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/core/neighbour.c b/net/core/neighbour.c index bf738ec68cb53..6e890f51b7d86 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -2844,6 +2844,7 @@ static void *neigh_stat_seq_next(struct seq_file *seq, void *v, loff_t *pos) *pos = cpu+1; return per_cpu_ptr(tbl->stats, cpu); } + (*pos)++; return NULL; } -- 2.25.1
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