diff options
| author | Dmitry Antipov <dmantipov@yandex.ru> | 2020-06-04 16:42:30 +0300 |
|---|---|---|
| committer | Amar Tumballi <amar@kadalu.io> | 2020-06-17 17:26:12 +0000 |
| commit | 3db89cf23a5574e902b7785e65655dea65b98aae (patch) | |
| tree | 2199a5a9cb629297a35d68af3815877be0e788a8 /NEWS | |
| parent | 9c17cd3b9ca2e44b272b7061de6990dba1ca6937 (diff) | |
rpc: fix undefined behaviour in __builtin_ctz
Found with GCC UBsan:
rpcsvc.c:102:36: runtime error: passing zero to ctz(), which is not a valid argument
#0 0x7fcd1ff6faa4 in rpcsvc_get_free_queue_index /path/to/glusterfs/rpc/rpc-lib/src/rpcsvc.c:102
#1 0x7fcd1ff81e12 in rpcsvc_handle_rpc_call /path/to/glusterfs/rpc/rpc-lib/src/rpcsvc.c:837
#2 0x7fcd1ff833ad in rpcsvc_notify /path/to/glusterfs/rpc/rpc-lib/src/rpcsvc.c:1000
#3 0x7fcd1ff8829d in rpc_transport_notify /path/to/glusterfs/rpc/rpc-lib/src/rpc-transport.c:520
#4 0x7fcd0dd72f16 in socket_event_poll_in_async /path/to/glusterfs/rpc/rpc-transport/socket/src/socket.c:2502
#5 0x7fcd0dd8986a in gf_async ../../../../libglusterfs/src/glusterfs/async.h:189
#6 0x7fcd0dd8986a in socket_event_poll_in /path/to/glusterfs/rpc/rpc-transport/socket/src/socket.c:2543
#7 0x7fcd0dd8986a in socket_event_handler /path/to/glusterfs/rpc/rpc-transport/socket/src/socket.c:2934
#8 0x7fcd0dd8986a in socket_event_handler /path/to/glusterfs/rpc/rpc-transport/socket/src/socket.c:2854
#9 0x7fcd2048aff7 in event_dispatch_epoll_handler /path/to/glusterfs/libglusterfs/src/event-epoll.c:640
#10 0x7fcd2048aff7 in event_dispatch_epoll_worker /path/to/glusterfs/libglusterfs/src/event-epoll.c:751
...
Fix, simplify, and prefer 'unsigned long' as underlying bitmap type.
Change-Id: If3f24dfe7bef8bc7a11a679366e219a73caeb9e4
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Fixes: #1283
Diffstat (limited to 'NEWS')
0 files changed, 0 insertions, 0 deletions