| commit | b41d936b5ecfdb3a4abc525ce6402a6c49cffddc | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Wed Sep 18 08:05:39 2019 -0700 |
| committer | Jakub Kicinski <jakub.kicinski@netronome.com> | Fri Sep 20 19:12:22 2019 -0700 |
| tree | 240877850aa857e1f58e6a4be373c2ecee883f20 | |
| parent | 432264e9dfd10537e3cb66a11739f76754fc89e6 [diff] |
sch_netem: fix a divide by zero in tabledist()
syzbot managed to crash the kernel in tabledist() loading
an empty distribution table.
t = dist->table[rnd % dist->size];
Simply return an error when such load is attempted.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>