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| author | Randy Dunlap <rdunlap@infradead.org> | 2020-12-25 09:23:44 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-12 22:10:20 +0300 |
| commit | e94775ddeed0d27723cc204c590c0e1655662b7b (patch) | |
| tree | e00cd90bd0f8f7608ccc954532c132576bdd9645 /include/net/dst_cache.h | |
| parent | cf7dd7f3bec70fb52a127388facd832157a877c9 (diff) | |
| download | linux-e94775ddeed0d27723cc204c590c0e1655662b7b.tar.xz | |
net: sched: prevent invalid Scell_log shift count
[ Upstream commit bd1248f1ddbc48b0c30565fce897a3b6423313b8 ]
Check Scell_log shift size in red_check_params() and modify all callers
of red_check_params() to pass Scell_log.
This prevents a shift out-of-bounds as detected by UBSAN:
UBSAN: shift-out-of-bounds in ./include/net/red.h:252:22
shift exponent 72 is too large for 32-bit type 'int'
Fixes: 8afa10cbe281 ("net_sched: red: Avoid illegal values")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: syzbot+97c5bd9cc81eca63d36e@syzkaller.appspotmail.com
Cc: Nogah Frankel <nogahf@mellanox.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/dst_cache.h')
0 files changed, 0 insertions, 0 deletions