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(parent: 792a511) | patch
nfsd: don't ignore high bits of copy count
authorJ. Bruce Fields <bfields@redhat.com>
Fri, 19 Mar 2021 00:03:22 +0000 (20:03 -0400)
committerChuck Lever <chuck.lever@oracle.com>
Mon, 22 Mar 2021 14:19:04 +0000 (10:19 -0400)
commite7a833e9cc6c3b58fe94f049d2b40943cba07086
tree405d81b441122ed85459846765355cee5024c489tree | snapshot
parent792a5112aa90e59c048b601c6382fe3498d75db7commit | diff
nfsd: don't ignore high bits of copy count

Note size_t is 32-bit on a 32-bit architecture, but cp_count is defined
by the protocol to be 64 bit, so we could be turning a large copy into a
0-length copy here.

Reported-by: <radchenkoy@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
fs/nfsd/nfs4proc.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git