fuse: don't overflow LLONG_MAX with end offset

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[ Upstream commit 2f1398291b ]

Handle the special case of fuse_readpages() wanting to read the last page
of a hugest file possible and overflowing the end offset in the process.

This is basically to unbreak xfstests:generic/525 and prevent filesystems
from doing bad things with an overflowing offset.

Reported-by: Xiao Yang <ice_yangxiao@163.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Miklos Szeredi 2020-02-06 16:39:28 +01:00 • committed by Greg Kroah-Hartman

parent 2e8420b46f

commit f5654d8dba

1 changed files with 12 additions and 0 deletions

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fs/fuse/file.c

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