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Commit ef9d965b authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Al Viro
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sysctl: reject gigantic reads/write to sysctl files



Instead of triggering a WARN_ON deep down in the page allocator just
give up early on allocations that are way larger than the usual sysctl
values.

Fixes: 32927393 ("sysctl: pass kernel pointers to ->proc_handler")
Reported-by: default avatarVegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 8c46fa96
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