rxe_register_device+0x1ef/0x310 drivers/infiniband/sw/rxe/rxe_verbs.c:1556 rxe_net_add+0x81/0x110 drivers/infiniband/sw/rxe/rxe_net.c:537 rxe_newlink+0xdd/0x190 drivers/infiniband/sw/rxe/rxe.c:234 nldev_newlink+0x4a5/0x5a0 drivers/infiniband/core/nldev.c:1797 rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline] rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x6ae/0x980 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x505/0x830 net/socket.c:2630 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684 __sys_sendmsg net/socket.c:2716 [inline] __do_sys_sendmsg net/socket.c:2721 [inline] __se_sys_sendmsg net/socket.c:2719 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2719 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f78d218f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f78d3068038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f78d23e5fa0 RCX: 00007f78d218f749 RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000008 RBP: 00007f78d2213f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f78d23e6038 R14: 00007f78d23e5fa0 R15: 00007fffe8da1288 Mem-Info: active_anon:2985 inactive_anon:14 isolated_anon:1 active_file:914 inactive_file:38534 isolated_file:0 unevictable:1768 dirty:0 writeback:0 slab_reclaimable:6940 slab_unreclaimable:31007 mapped:10117 shmem:2177 pagetables:682 sec_pagetables:290 bounce:0 kernel_misc_reclaimable:0 free:38377 free_pcp:0 free_cma:0 Node 0 active_anon:16kB inactive_anon:56kB active_file:24kB inactive_file:24kB unevictable:1372kB isolated(anon):4kB isolated(file):0kB mapped:20kB dirty:0kB writeback:0kB shmem:1372kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB kernel_stack:3184kB pagetables:744kB sec_pagetables:1092kB all_unreclaimable? no Balloon:0kB Node 0 DMA free:1412kB boost:0kB min:760kB low:948kB high:1136kB reserved_highatomic:0KB free_highatomic:0KB active_anon:12kB inactive_anon:20kB active_file:0kB inactive_file:4kB unevictable:244kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 125 125 125 125 Node 0 DMA32 free:4852kB boost:6144kB min:11124kB low:12368kB high:13612kB reserved_highatomic:0KB free_highatomic:0KB active_anon:4kB inactive_anon:36kB active_file:24kB inactive_file:20kB unevictable:1128kB writepending:0kB zspages:0kB present:770052kB managed:128364kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 11*4kB (UE) 4*8kB (UE) 2*16kB (E) 11*32kB (UE) 7*64kB (UE) 4*128kB (UE) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1420kB Node 0 DMA32: 11*4kB (UM) 15*8kB (UM) 9*16kB (UM) 8*32kB (UM) 7*64kB (UM) 6*128kB (M) 2*256kB (M) 1*512kB (M) 2*1024kB (UM) 0*2048kB 0*4096kB = 4852kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB 41691 total pagecache pages 57 pages in swap cache Free swap = 123004kB Total swap = 124996kB 393083 pages RAM 0 pages HighMem/MovableOnly 184449 pages reserved 0 pages cma reserved smc: removing ib device syz2 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5324 at drivers/infiniband/sw/rxe/rxe_pool.c:116 rxe_pool_cleanup+0x48/0x60 drivers/infiniband/sw/rxe/rxe_pool.c:116 Modules linked in: CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:rxe_pool_cleanup+0x48/0x60 drivers/infiniband/sw/rxe/rxe_pool.c:116 Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 d0 f6 b1 f9 48 83 3b 00 75 0c e8 75 ab 4a f9 5b e9 bf 0c d6 02 cc e8 69 ab 4a f9 90 <0f> 0b 90 5b c3 cc cc cc cc cc 66 66 66 66 66 2e 0f 1f 84 00 00 00 RSP: 0000:ffffc9000d3c6fe8 EFLAGS: 00010246 RAX: ffffffff887567e7 RBX: ffff88803ed293d8 RCX: 0000000000100000 RDX: ffffc9000dd22000 RSI: 00000000000fffff RDI: 0000000000100000 RBP: 0000000000000000 R08: ffffc9000d3c6d47 R09: 1ffff92001a78da8 R10: dffffc0000000000 R11: ffffffff8873a500 R12: ffff88803ed290e8 R13: dffffc0000000000 R14: ffffffff8873a500 R15: dffffc0000000000 FS: 00007f78d30686c0(0000) GS:ffff88808d72f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f08ff3815c0 CR3: 0000000019fbd000 CR4: 0000000000352ef0 Call Trace: rxe_dealloc+0x27/0xc0 drivers/infiniband/sw/rxe/rxe.c:24 ib_dealloc_device+0x54/0x200 drivers/infiniband/core/device.c:693 rxe_net_add+0xa1/0x110 drivers/infiniband/sw/rxe/rxe_net.c:539 rxe_newlink+0xdd/0x190 drivers/infiniband/sw/rxe/rxe.c:234 nldev_newlink+0x4a5/0x5a0 drivers/infiniband/core/nldev.c:1797 rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline] rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x6ae/0x980 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x505/0x830 net/socket.c:2630 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684 __sys_sendmsg net/socket.c:2716 [inline] __do_sys_sendmsg net/socket.c:2721 [inline] __se_sys_sendmsg net/socket.c:2719 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2719 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f78d218f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f78d3068038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f78d23e5fa0 RCX: 00007f78d218f749 RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000000000000008 RBP: 00007f78d2213f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f78d23e6038 R14: 00007f78d23e5fa0 R15: 00007fffe8da1288