Messages in this thread Patch in this message | | | From | Christoph Hellwig <> | Subject | [PATCH 1/4] net/sysctl: use cpumask_parse in flow_limit_cpu_sysctl | Date | Wed, 3 Jun 2020 07:52:34 +0200 |
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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> Signed-off-by: Christoph Hellwig <hch@lst.de> --- net/core/sysctl_net_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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; -- 2.26.2
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