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| author |   Vasily Averin <vvs@virtuozzo.com> | 2020-02-25 10:07:12 +0300 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2020-03-04 02:27:18 +0100 |
| commit | ee84f19cbbe9cf7cba2958acb03163fed3ecbb0f (patch) | |
| tree | 0498f55f7aae737dccf56cfc1cff31d3951c1dfa /ipc/shm.c | |
| parent | netfilter: xt_recent: recent_seq_next should increase position index (diff) | |
| download | linux-dev-ee84f19cbbe9cf7cba2958acb03163fed3ecbb0f.tar.xz linux-dev-ee84f19cbbe9cf7cba2958acb03163fed3ecbb0f.zip | |
netfilter: x_tables: xt_mttg_seq_next should increase position index
If .next function does not change position index,
following .show function will repeat output related
to current position index.
Without patch:
# dd if=/proc/net/ip_tables_matches # original file output
conntrack
conntrack
conntrack
recent
recent
icmp
udplite
udp
tcp
0+1 records in
0+1 records out
65 bytes copied, 5.4074e-05 s, 1.2 MB/s
# dd if=/proc/net/ip_tables_matches bs=62 skip=1
dd: /proc/net/ip_tables_matches: cannot skip to specified offset
cp <<< end of last line
tcp <<< and then unexpected whole last line once again
0+1 records in
0+1 records out
7 bytes copied, 0.000102447 s, 68.3 kB/s
Cc: stable@vger.kernel.org
Fixes: 1f4aace60b0e ("fs/seq_file.c: simplify seq_file iteration code ...")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'ipc/shm.c')
0 files changed, 0 insertions, 0 deletions