diff options
Diffstat (limited to 'kernel/trace/fprobe.c')
| -rw-r--r-- | kernel/trace/fprobe.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/trace/fprobe.c b/kernel/trace/fprobe.c index f378613ad120..f215990b9061 100644 --- a/kernel/trace/fprobe.c +++ b/kernel/trace/fprobe.c @@ -613,6 +613,16 @@ static int fprobe_fgraph_entry(struct ftrace_graph_ent *trace, struct fgraph_ops continue; data_size = fp->entry_data_size; + /* + * The list may have grown since it was sized, so this node + * may not fit. Skip it as missed rather than overrun the + * reservation. + */ + if (fp->exit_handler && + used + FPROBE_HEADER_SIZE_IN_LONG + SIZE_IN_LONG(data_size) > reserved_words) { + fp->nmissed++; + continue; + } if (data_size && fp->exit_handler) data = fgraph_data + used + FPROBE_HEADER_SIZE_IN_LONG; else |