iwpm_register_pid: Unable to send a nlmsg (client = 2) infiniband syz1: RDMA CMA: cma_listen_on_dev, error -98 smc: removing ib device rxe0 rdma_rxe: rxe-pd pool destroyed with unfree'd elem rdma_rxe: rxe-mr pool destroyed with unfree'd elem ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8142 at drivers/infiniband/core/restrack.c:52 rdma_restrack_clean+0x2a6/0x300 drivers/infiniband/core/restrack.c:52 Modules linked in: CPU: 0 PID: 8142 Comm: syz.5.813 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:rdma_restrack_clean+0x2a6/0x300 drivers/infiniband/core/restrack.c:52 Code: 70 46 40 fa 49 81 c6 68 02 00 00 4c 89 f7 e8 61 fb d5 fc 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d e9 bf f6 84 fa e8 4a 46 40 fa <0f> 0b e9 b9 fd ff ff e8 3e 46 40 fa 0f 0b e9 f9 fd ff ff e8 32 46 RSP: 0018:ffffc9000467f240 EFLAGS: 00010246 RAX: ffffffff8738dd16 RBX: ffff888079e31800 RCX: 0000000000080000 RDX: ffffc9001459b000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: 1ffff110036309db R08: ffff88801b184eeb R09: 1ffff110036309dd R10: dffffc0000000000 R11: ffffed10036309de R12: 1ffff110036309cc R13: dffffc0000000000 R14: ffff88801b184ed8 R15: ffff888079e31848 FS: 00007fae3fa0b6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9942bd0286 CR3: 000000002d765000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000063235cd5 DR3: 0000000000007000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: ib_dealloc_device+0x160/0x1f0 drivers/infiniband/core/device.c:686 __ib_unregister_device+0x110/0x170 drivers/infiniband/core/device.c:1507 ib_unregister_device_and_put+0xb4/0xf0 drivers/infiniband/core/device.c:1554 nldev_dellink+0x281/0x310 drivers/infiniband/core/nldev.c:1741 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+0x6d8/0xa00 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x78f/0x940 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x5be/0x8f0 net/socket.c:2446 ___sys_sendmsg+0x236/0x2e0 net/socket.c:2500 __sys_sendmsg net/socket.c:2529 [inline] __do_sys_sendmsg net/socket.c:2538 [inline] __se_sys_sendmsg+0x1b7/0x2a0 net/socket.c:2536 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fae417b3559 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fae3fa0b028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fae41a3afa0 RCX: 00007fae417b3559 RDX: 0000000000000000 RSI: 00002000000002c0 RDI: 0000000000000003 RBP: 00007fae4184a8b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fae41a3b038 R14: 00007fae41a3afa0 R15: 00007ffdd1aa3f38