BackPup/Linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-25 21:21:09 -04:00
Code Issues Packages Projects Releases Wiki Activity

net/ipv5/tcp: use vma_lookup() in tcp_zerocopy_receive()

Browse Source 
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]>
This commit is contained in:
Liam Howlett
2021-06-29 10:53:51 -07:00
committed by Linus Torvalds
parent 85715d6809
commit 47bdd1db16
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/ipv4/tcp.c
+2 -2
View File
@@ -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;
}