Re: [PATCH v2] net/rds: Fix a use after free in rds_message_map_pages

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Tue, 30 Mar 2021 18:59:59 -0700 you wrote:

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 <redacted>

[...]

Here is the summary with links:
  - [v2] net/rds: Fix a use after free in rds_message_map_pages
    https://git.kernel.org/netdev/net/c/bdc2ab5c61a5

You are awesome, thank you!
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