mpol_to_str() may fail, and not fill the buffer (e.g. -EINVAL), so need check about it, or buffer may not be zero based, and next seq_printf() will cause issue. Signed-off-by: Chen Gang <gang.chen@xxxxxxxxxxx> Cc: Cyrill Gorcunov <gorcunov@xxxxxxxxx> --- fs/proc/task_mmu.c | 4 +++- mm/shmem.c | 16 ++++++++++------ 2 files changed, 13 insertions(+), 7 deletions(-) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>