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| author |   Mariusz Kozlowski <m.kozlowski@tuxland.pl> | 2009-07-05 19:48:35 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-07-06 12:47:07 -0700 |
| commit | 3c8a9c63d5fd738c261bd0ceece04d9c8357ca13 (patch) | |
| tree | 7c60ab7e391f73ffcbcb98613ee454f843d7b3d1 /net/unix/af_unix.c | |
| parent | dsa: fix 88e6xxx statistics counter snapshotting (diff) | |
| download | wireguard-linux-3c8a9c63d5fd738c261bd0ceece04d9c8357ca13.tar.xz wireguard-linux-3c8a9c63d5fd738c261bd0ceece04d9c8357ca13.zip | |
tun/tap: Fix crashes if open() /dev/net/tun and then poll() it.
Fix NULL pointer dereference in tun_chr_pool() introduced by commit
33dccbb050bbe35b88ca8cf1228dcf3e4d4b3554 ("tun: Limit amount of queued
packets per device") and triggered by this code:
int fd;
struct pollfd pfd;
fd = open("/dev/net/tun", O_RDWR);
pfd.fd = fd;
pfd.events = POLLIN | POLLOUT;
poll(&pfd, 1, 0);
Reported-by: Eugene Kapun <abacabadabacaba@gmail.com>
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions