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Diffstat (limited to 'src/vnet/session/segment_manager.c')
| -rw-r--r-- | src/vnet/session/segment_manager.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c index c8d4be5c113..f7b4c312a84 100644 --- a/src/vnet/session/segment_manager.c +++ b/src/vnet/session/segment_manager.c @@ -224,7 +224,9 @@ segment_manager_add_segment (segment_manager_t * sm, u32 segment_size) */ segment_size = segment_size ? segment_size : props->add_segment_size; page_size = clib_mem_get_page_size (); - segment_size = (segment_size + page_size - 1) & ~(page_size - 1); + /* Protect against segment size u32 wrap */ + segment_size = clib_max (segment_size + page_size - 1, segment_size); + segment_size = segment_size & ~(page_size - 1); if (props->segment_type != SSVM_SEGMENT_PRIVATE) { seg_name = format (0, "%d-%d%c", getpid (), segment_name_counter++, 0); |