RDS/IB: syz1: added smc: adding ib device syz1 with port count 1 smc: ib device syz1 port 1 has pnetid smc: removing ib device syz1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5598 at kernel/rcu/srcutree.c:653 cleanup_srcu_struct+0x37c/0x520 kernel/rcu/srcutree.c:653 Modules linked in: CPU: 0 PID: 5598 Comm: syz-executor.0 Not tainted 6.10.0-rc5-syzkaller-00018-g55027e689933 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:cleanup_srcu_struct+0x37c/0x520 kernel/rcu/srcutree.c:653 Code: 83 c4 20 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 90 0f 0b 90 48 83 c4 20 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 90 <0f> 0b 90 e9 35 ff ff ff 90 0f 0b 90 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc90006f26ed8 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff88801e7a2060 RCX: 0000000000000008 RDX: fffff91ffffad4d4 RSI: 0000000000000008 RDI: ffffe8ffffd6a698 RBP: ffff88800025a000 R08: 0000000000000000 R09: fffff91ffffad4d3 R10: ffffe8ffffd6a69f R11: 0000000000000003 R12: ffff88801e7a25f0 R13: dffffc0000000000 R14: ffff888057c3c720 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802c000000(0063) knlGS:00000000f5e69b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000032826000 CR3: 0000000062800000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ib_uverbs_release_dev+0x48/0x80 drivers/infiniband/core/uverbs_main.c:136 device_release+0xa1/0x240 drivers/base/core.c:2581 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1fa/0x5b0 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3787 remove_client_context+0xbf/0x120 drivers/infiniband/core/device.c:776 disable_device+0x13b/0x280 drivers/infiniband/core/device.c:1282 __ib_unregister_device+0x93/0x190 drivers/infiniband/core/device.c:1475 ib_register_device drivers/infiniband/core/device.c:1438 [inline] ib_register_device+0x99f/0xb60 drivers/infiniband/core/device.c:1366 rxe_register_device+0x2fc/0x3d0 drivers/infiniband/sw/rxe/rxe_verbs.c:1523 rxe_net_add+0x86/0xe0 drivers/infiniband/sw/rxe/rxe_net.c:541 rxe_newlink+0x70/0x190 drivers/infiniband/sw/rxe/rxe.c:197 nldev_newlink+0x370/0x5f0 drivers/infiniband/core/nldev.c:1778 rdma_nl_rcv_msg+0x388/0x6e0 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb.constprop.0.isra.0+0x2e6/0x450 drivers/infiniband/core/netlink.c:239 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9b4/0xb50 net/socket.c:2585 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2639 __sys_sendmsg+0x117/0x1f0 net/socket.c:2668 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7277579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f5e695ac EFLAGS: 00000292 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000200002c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi