1 files changed, 4 insertions, 0 deletions

diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index ae4b0fd9033f..998e3a715bcc 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -402,6 +402,10 @@ static int proc_sys_compare(const struct dentry *parent,
                 const struct dentry *dentry, const struct inode *inode,
                 unsigned int len, const char *str, const struct qstr *name)
 {
+        /* Although proc doesn't have negative dentries, rcu-walk means
+         * that inode here can be NULL */
+        if (!inode)
+                return 0;
         if (name->len != len)
                 return 1;
         if (memcmp(name->name, str, len))