diff options
Diffstat (limited to 'libbcachefs/printbuf.c')
| -rw-r--r-- | libbcachefs/printbuf.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libbcachefs/printbuf.c b/libbcachefs/printbuf.c index 8b036918..9f529e4c 100644 --- a/libbcachefs/printbuf.c +++ b/libbcachefs/printbuf.c @@ -45,6 +45,13 @@ int bch2_printbuf_make_room(struct printbuf *out, unsigned extra) unsigned new_size = roundup_pow_of_two(out->size + extra); + /* Sanity check... */ + if (new_size > PAGE_SIZE << MAX_PAGE_ORDER) { + out->allocation_failure = true; + out->overflow = true; + return -ENOMEM; + } + /* * Note: output buffer must be freeable with kfree(), it's not required * that the user use printbuf_exit(). |