diff options
| author |   Jakub Audykowicz <jakub.audykowicz@gmail.com> | 2018-12-04 20:27:41 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-12-05 20:37:52 -0800 |
| commit | afd0a8006e98b1890908f81746c94ca5dae29d7c (patch) | |
| tree | 22a7070a7d5b13891bc65368b42bcb18cc56d6f1 /net/ipv4/ip_fragment.c | |
| parent | tcp: fix NULL ref in tail loss probe (diff) | |
| download | linux-dev-afd0a8006e98b1890908f81746c94ca5dae29d7c.tar.xz linux-dev-afd0a8006e98b1890908f81746c94ca5dae29d7c.zip | |
sctp: frag_point sanity check
If for some reason an association's fragmentation point is zero,
sctp_datamsg_from_user will try to endlessly try to divide a message
into zero-sized chunks. This eventually causes kernel panic due to
running out of memory.
Although this situation is quite unlikely, it has occurred before as
reported. I propose to add this simple last-ditch sanity check due to
the severity of the potential consequences.
Signed-off-by: Jakub Audykowicz <jakub.audykowicz@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions