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(parent: a0a6df9) | patch
iov_iter: fix the uaccess area in copy_compat_iovec_from_user
authorChristoph Hellwig <hch@lst.de>
Mon, 11 Jan 2021 17:19:26 +0000 (18:19 +0100)
committerAl Viro <viro@zeniv.linux.org.uk>
Sat, 16 Jan 2021 03:51:42 +0000 (22:51 -0500)
commita959a9782fa87669feeed095ced5d78181a7c02d
tree99f8eb6dede1e8eaf467e4513e22a837ae673995tree | snapshot
parenta0a6df9afcaf439a6b4c88a3b522e3d05fdef46fcommit | diff
iov_iter: fix the uaccess area in copy_compat_iovec_from_user

sizeof needs to be called on the compat pointer, not the native one.

Fixes: 89cd35c58bc2 ("iov_iter: transparently handle compat iovecs in import_iovec")
Reported-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
lib/iov_iter.c diff | blob | history
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