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| author |   Christoph Hellwig <hch@lst.de> | 2020-06-09 19:08:19 +0200 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2020-06-10 14:11:33 -0400 |
| commit | ef9d965bc8b6fce5bcc0ae76a4a5b3ed91ee81eb (patch) | |
| tree | b8c9350abed0e245cbda54b026158f78a977cbe0 /include | |
| parent | cdrom: fix an incorrect __user annotation on cdrom_sysctl_info (diff) | |
| download | wireguard-linux-ef9d965bc8b6fce5bcc0ae76a4a5b3ed91ee81eb.tar.xz wireguard-linux-ef9d965bc8b6fce5bcc0ae76a4a5b3ed91ee81eb.zip | |
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: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions