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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-05-22 20:37:44 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-07 12:32:52 -0800 |
| commit | bfd62064efe736c254679f66ee37cf087ad60a72 (patch) | |
| tree | 64179f207b690e7b02a219b4e48ae645faeb3071 /lib/debugobjects.c | |
| parent | 5cabd386ccf73b4a267f8c95e3a0b6e88f297188 (diff) | |
net_sched: Fix qdisc_notify()
commit 53b0f08042f04813cd1a7473dacd3edfacb28eb3 upstream.
Ben Pfaff reported a kernel oops and provided a test program to
reproduce it.
https://kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805
tc_fill_qdisc() should not be called for builtin qdisc, or it
dereference a NULL pointer to get device ifindex.
Fix is to always use tc_qdisc_dump_ignore() before calling
tc_fill_qdisc().
Reported-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions