diff options
Diffstat (limited to 'kernel/bpf/syscall.c')
| -rw-r--r-- | kernel/bpf/syscall.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index c7f6807215e6..c9a201e4c457 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -1931,6 +1931,11 @@ static int map_freeze(const union bpf_attr *attr) return -ENOTSUPP; } + if (!(map_get_sys_perms(map, f) & FMODE_CAN_WRITE)) { + err = -EPERM; + goto err_put; + } + mutex_lock(&map->freeze_mutex); if (bpf_map_write_active(map)) { err = -EBUSY; @@ -1940,10 +1945,6 @@ static int map_freeze(const union bpf_attr *attr) err = -EBUSY; goto err_put; } - if (!bpf_capable()) { - err = -EPERM; - goto err_put; - } WRITE_ONCE(map->frozen, true); err_put: |