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BACKPORT: net/sysctl: use cpumask_parse in flow_limit_cpu_sysctl

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cpumask_parse_user works on __user pointers, so this is wrong now.

Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
Reported-by: build test robot <lkp@intel.com>
Change-Id: I23638a1f5b7f978b5bb407a9fbf868294ed43c4c
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig
2020-06-03 07:52:34 +02:00
committed by Nolen Johnson
parent d6b57bec48
commit fb7aa3f011
1 changed files with 1 additions and 1 deletions
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2
net/core/sysctl_net_core.c
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@ -119,7 +119,7 @@ static int flow_limit_cpu_sysctl(struct ctl_table *table, int write,
return -ENOMEM;
if (write) {
ret = cpumask_parse_user(buffer, *lenp, mask);
ret = cpumask_parse(buffer, mask);
if (ret)
goto done;