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net/sysctl: use cpumask_parse in flow_limit_cpu_sysctl 

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

Fixes: 32927393dc ("sysctl: pass kernel pointers to ->proc_handler")
Reported-by: build test robot <lkp@intel.com>
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 Al Viro
parent 32927393dc
commit 56965ac725
1 changed files with 1 additions and 1 deletions
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2
net/core/sysctl_net_core.c
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@ -126,7 +126,7 @@ 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;