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| author | Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> | 2018-01-09 00:02:28 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-10 22:53:22 +0300 |
| commit | 5960cefab9df76600a1a7d4ff592c59e14616e88 (patch) | |
| tree | f7fe350ca04f5ebb6ffa9d7fa09fcc822641c4a1 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 2e83acb970684008baee471427270c029a76ddbd (diff) | |
| download | linux-5960cefab9df76600a1a7d4ff592c59e14616e88.tar.xz | |
sctp: add a ceiling to optlen in some sockopts
Hangbin Liu reported that some sockopt calls could cause the kernel to log
a warning on memory allocation failure if the user supplied a large optlen
value. That is because some of them called memdup_user() without a ceiling
on optlen, allowing it to try to allocate really large buffers.
This patch adds a ceiling by limiting optlen to the maximum allowed that
would still make sense for these sockopt.
Reported-by: Hangbin Liu <haliu@redhat.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions