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(parent: dd7d3a6) | patch
NFSD: prevent underflow in nfssvc_decode_writeargs()
authorDan Carpenter <dan.carpenter@oracle.com>
Tue, 15 Mar 2022 10:30:09 +0000 (13:30 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 20 Apr 2022 07:08:09 +0000 (09:08 +0200)
commit438068f4912183a59fcb6b7496a06437f7fd4e2b
tree038f39513a8077e6a8630624c2db93521b85eb4btree
parentdd7d3a609aac160bf3cbce5a4bc52358da346d10commit | diff
NFSD: prevent underflow in nfssvc_decode_writeargs()

commit 184416d4b98509fb4c3d8fc3d6dc1437896cc159 upstream.

Smatch complains:

fs/nfsd/nfsxdr.c:341 nfssvc_decode_writeargs()
warn: no lower bound on 'args->len'

Change the type to unsigned to prevent this issue.

Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/nfsd/nfsproc.c diff | blob | blame | history
fs/nfsd/xdr.h diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git