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| author | Lv Yunlong <lyl2019@mail.ustc.edu.cn> | 2021-03-30 18:59:59 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-31 14:26:56 -0700 |
| commit | bdc2ab5c61a5c07388f4820ff21e787b4dfd1ced (patch) | |
| tree | e4de98593b2567237161731b200b533b4de41f87 /include/net | |
| parent | d47ec7a0a7271dda08932d6208e4ab65ab0c987c (diff) | |
net/rds: Fix a use after free in rds_message_map_pages
In rds_message_map_pages, the rm is freed by rds_message_put(rm).
But rm is still used by rm->data.op_sg in return value.
My patch assigns ERR_CAST(rm->data.op_sg) to err before the rm is
freed to avoid the uaf.
Fixes: 7dba92037baf3 ("net/rds: Use ERR_PTR for rds_message_alloc_sgs()")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
0 files changed, 0 insertions, 0 deletions