================================================================== BUG: KASAN: slab-out-of-bounds in atomic_read include/asm-generic/atomic-instrumented.h:26 [inline] BUG: KASAN: slab-out-of-bounds in refcount_read include/linux/refcount.h:43 [inline] BUG: KASAN: slab-out-of-bounds in check_net include/net/net_namespace.h:254 [inline] BUG: KASAN: slab-out-of-bounds in rds_destroy_pending net/rds/rds.h:951 [inline] BUG: KASAN: slab-out-of-bounds in rds_cong_queue_updates+0x209/0x4d0 net/rds/cong.c:229 Read of size 4 at addr ffff8880879083c4 by task syz-executor.0/9574 CPU: 0 PID: 9574 Comm: syz-executor.0 Not tainted 5.0.0+ #129 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:187 kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317 check_memory_region_inline mm/kasan/generic.c:185 [inline] check_memory_region+0x123/0x190 mm/kasan/generic.c:191 kasan_check_read+0x11/0x20 mm/kasan/common.c:102 atomic_read include/asm-generic/atomic-instrumented.h:26 [inline] refcount_read include/linux/refcount.h:43 [inline] check_net include/net/net_namespace.h:254 [inline] rds_destroy_pending net/rds/rds.h:951 [inline] rds_cong_queue_updates+0x209/0x4d0 net/rds/cong.c:229 rds_recv_rcvbuf_delta.part.0+0x34f/0x3f0 net/rds/recv.c:118 rds_recv_rcvbuf_delta net/rds/recv.c:379 [inline] rds_recv_incoming+0x789/0x11f0 net/rds/recv.c:379 rds_loop_xmit+0xf3/0x2a0 net/rds/loop.c:96 rds_send_xmit+0x1113/0x2560 net/rds/send.c:355 rds_sendmsg+0x3017/0x3550 net/rds/send.c:1369 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 __sys_sendto+0x262/0x380 net/socket.c:1932 __do_sys_sendto net/socket.c:1944 [inline] __se_sys_sendto net/socket.c:1940 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1940 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458079 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f66d8401c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000458079 RDX: 0000000000000480 RSI: 0000000020000a00 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f66d84026d4 R13: 00000000004c5718 R14: 00000000004d9698 R15: 00000000ffffffff Allocated by task 26232: save_stack+0x45/0xd0 mm/kasan/common.c:75 set_track mm/kasan/common.c:87 [inline] __kasan_kmalloc mm/kasan/common.c:497 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:470 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:511 __do_kmalloc mm/slab.c:3726 [inline] __kmalloc+0x15c/0x740 mm/slab.c:3735 kmalloc include/linux/slab.h:550 [inline] kzalloc include/linux/slab.h:740 [inline] wiphy_new_nm+0x6f0/0x1ec0 net/wireless/core.c:425 ieee80211_alloc_hw_nm+0x3df/0x2090 net/mac80211/main.c:551 mac80211_hwsim_new_radio+0x1eb/0x3de0 drivers/net/wireless/mac80211_hwsim.c:2659 hwsim_new_radio_nl+0x9e3/0x1070 drivers/net/wireless/mac80211_hwsim.c:3477 genl_family_rcv_msg+0x6e1/0xd90 net/netlink/genetlink.c:601 genl_rcv_msg+0xca/0x16c net/netlink/genetlink.c:626 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 genl_rcv+0x29/0x40 net/netlink/genetlink.c:637 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 ___sys_sendmsg+0x806/0x930 net/socket.c:2260 __sys_sendmsg+0x105/0x1d0 net/socket.c:2298 __do_sys_sendmsg net/socket.c:2307 [inline] __se_sys_sendmsg net/socket.c:2305 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2305 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 21: save_stack+0x45/0xd0 mm/kasan/common.c:75 set_track mm/kasan/common.c:87 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/common.c:459 kasan_slab_free+0xe/0x10 mm/kasan/common.c:467 __cache_free mm/slab.c:3498 [inline] kfree+0xcf/0x230 mm/slab.c:3821 tipc_nametbl_stop+0x6c0/0x940 net/tipc/name_table.c:798 tipc_exit_net+0x2e/0x40 net/tipc/core.c:103 ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:551 process_one_work+0x98e/0x1790 kernel/workqueue.c:2269 worker_thread+0x98/0xe40 kernel/workqueue.c:2415 kthread+0x357/0x430 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 The buggy address belongs to the object at ffff88808790bac0 which belongs to the cache kmalloc-16k of size 16384 The buggy address is located 14076 bytes to the left of 16384-byte region [ffff88808790bac0, ffff88808790fac0) The buggy address belongs to the page: page:ffffea00021e4200 count:1 mapcount:0 mapping:ffff88812c3f2200 index:0x0 compound_mapcount: 0 flags: 0x1fffc0000010200(slab|head) raw: 01fffc0000010200 ffffea000182b208 ffffea000239ee08 ffff88812c3f2200 raw: 0000000000000000 ffff88808790bac0 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888087908280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888087908300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888087908380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888087908400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888087908480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================