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authorVasily Averin <vvs@virtuozzo.com>2020-01-23 10:11:35 +0300
committerDavid S. Miller <davem@davemloft.net>2020-01-24 11:42:18 +0100
commita3ea86739f1bc7e121d921842f0f4a8ab1af94d9 (patch)
treef54d23d0ef101dcee541645a56192ddcbbcf76cc
parent1e3f9f073c47bee7c23e77316b07bc12338c5bba (diff)
downloadlinux-a3ea86739f1bc7e121d921842f0f4a8ab1af94d9.tar.gz
rt_cpu_seq_next should increase position index
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>
-rw-r--r--net/ipv4/route.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 87e979f2b74a..e356ea779227 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -271,6 +271,7 @@ static void *rt_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
*pos = cpu+1;
return &per_cpu(rt_cache_stat, cpu);
}
+ (*pos)++;
return NULL;
}