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Diffstat (limited to 'kernel/sysctl.c')
-rw-r--r--kernel/sysctl.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index ff5abcca5ddf..911d846f0503 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1516,9 +1516,9 @@ static int do_sysctl_strategy(struct ctl_table_root *root,
int op = 0, rc;
if (oldval)
- op |= 004;
+ op |= MAY_READ;
if (newval)
- op |= 002;
+ op |= MAY_WRITE;
if (sysctl_perm(root, table, op))
return -EPERM;
@@ -1560,7 +1560,7 @@ repeat:
if (n == table->ctl_name) {
int error;
if (table->child) {
- if (sysctl_perm(root, table, 001))
+ if (sysctl_perm(root, table, MAY_EXEC))
return -EPERM;
name++;
nlen--;
@@ -1635,7 +1635,7 @@ static int test_perm(int mode, int op)
mode >>= 6;
else if (in_egroup_p(0))
mode >>= 3;
- if ((mode & op & 0007) == op)
+ if ((op & ~mode & (MAY_READ|MAY_WRITE|MAY_EXEC)) == 0)
return 0;
return -EACCES;
}
@@ -1645,7 +1645,7 @@ int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int op)
int error;
int mode;
- error = security_sysctl(table, op);
+ error = security_sysctl(table, op & (MAY_READ | MAY_WRITE | MAY_EXEC));
if (error)
return error;