[1/4] net/sysctl: use cpumask_parse in flow_limit_cpu_sysctl
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Message ID 20200603055237.677416-2-hch@lst.de
State New
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Series
  • [1/4] net/sysctl: use cpumask_parse in flow_limit_cpu_sysctl
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Commit Message

Christoph Hellwig June 3, 2020, 5:52 a.m. UTC
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>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 net/core/sysctl_net_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 0ddb13a6282b0..d14d049af52ae 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -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;