diff options
| author | Liam Howlett <[email protected]> | 2021-06-28 19:39:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-06-29 10:53:51 -0700 |
| commit | 47bdd1db16e67ebfde6f77eaf7625b2292ae6d58 (patch) | |
| tree | cc3f84a4f075a0075918d445868ef147945f6f25 | |
| parent | 85715d6809014870a8a4d498b292fc5711a969e7 (diff) | |
net/ipv5/tcp: use vma_lookup() in tcp_zerocopy_receive()
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Liam R. Howlett <[email protected]>
Reviewed-by: Laurent Dufour <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Acked-by: Davidlohr Bueso <[email protected]>
Cc: David Miller <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | net/ipv4/tcp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index f1c1f9e3de72..64bf179cc915 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2095,8 +2095,8 @@ static int tcp_zerocopy_receive(struct sock *sk, mmap_read_lock(current->mm); - vma = find_vma(current->mm, address); - if (!vma || vma->vm_start > address || vma->vm_ops != &tcp_vm_ops) { + vma = vma_lookup(current->mm, address); + if (!vma || vma->vm_ops != &tcp_vm_ops) { mmap_read_unlock(current->mm); return -EINVAL; } |