diff options
author | Arjun Roy <arjunroy@google.com> | 2021-05-06 15:35:30 -0700 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2021-05-06 18:05:35 -0700 |
commit | a6f8ee58a8e35f7e4380a5efce312e2a5bc27497 (patch) | |
tree | aec7b0174d722130592496eba7eace14321c633f /drivers/iommu | |
parent | cbaf3f6af9c268caf558c8e7ec52bcb35c5455dd (diff) |
tcp: Specify cmsgbuf is user pointer for receive zerocopy.
A prior change (1f466e1f15cf) introduces separate handling for
->msg_control depending on whether the pointer is a kernel or user
pointer. However, while tcp receive zerocopy is using this field, it
is not properly annotating that the buffer in this case is a user
pointer. This can cause faults when the improper mechanism is used
within put_cmsg().
This patch simply annotates tcp receive zerocopy's use as explicitly
being a user pointer.
Fixes: 7eeba1706eba ("tcp: Add receive timestamp support for receive zerocopy.")
Signed-off-by: Arjun Roy <arjunroy@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20210506223530.2266456-1-arjunroy.kdev@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/iommu')
0 files changed, 0 insertions, 0 deletions