aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000340)={&(0x7f00000007c0)={0x12c, r1, 0x20, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x62}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r11}, {0x8}, {0x8, 0x1, r8}, {0xfffffffffffffe84, 0x1, r12}, {0x8, 0x1, r13}, {0x8, 0x1, r4}, {0x8, 0x1, r14}, {0x8, 0x1, r15}, {0x8, 0x1, r16}]}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0x0, 0x6, 0x3}]}, 0x12c}, 0x1, 0x0, 0x0, 0x4008040}, 0x20000000) 17:53:44 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000000)=ANY=[], 0xc0}}, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) (async) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) (async) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x1, 0x32, &(0x7f00000000c0)=r1, 0x4) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000140)=ANY=[@ANYBLOB="010000df1e00000018008000", @ANYRES32=r1, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00./file0\x00']) (async) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000140)=ANY=[@ANYBLOB="010000df1e00000018008000", @ANYRES32=r1, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00./file0\x00']) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$DRM_IOCTL_PRIME_FD_TO_HANDLE(r2, 0xc00c642e, &(0x7f0000000180)={0x0, 0x0, r3}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) 17:53:44 executing program 2: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) ioctl$IOCTL_VMCI_QUEUEPAIR_SETPF(r0, 0x7a9, &(0x7f0000000100)={{@host, 0x27e}, 0x7, 0xffffffffffffffe0, 0xfffffffffffffff7, 0x2, 0x1000, 0x80000, 0x1, 0x9}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000002c0)=ANY=[@ANYBLOB="c0000000", @ANYRES16=0x0, @ANYBLOB="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"], 0x1c}}, 0x0) 17:53:44 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x20, r3, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x4880}, 0x40000) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:44 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xee01, 0xee01}}, './file0\x00'}) r5 = bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x60, 0x0, 0x400, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}]}, 0x60}, 0x1, 0x0, 0x0, 0x14000001}, 0x4044010) 17:53:44 executing program 0: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) r1 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(r1, 0xc018937c, 0x0) sendmsg$FOU_CMD_ADD(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x48, 0x0, 0x8, 0x70bd2b, 0x25dfdbfe, {}, [@FOU_ATTR_PEER_V6={0x14, 0x9, @empty}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e22}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_IFINDEX={0x8}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e21}]}, 0x48}, 0x1, 0x0, 0x0, 0x20000000}, 0x8040) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r7, 0xc018937e, &(0x7f0000000680)={{0x1, 0x1, 0x18, r4, {0x4}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) 17:53:44 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xee01, 0xee01}}, './file0\x00'}) r5 = bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x60, 0x0, 0x400, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}]}, 0x60}, 0x1, 0x0, 0x0, 0x14000001}, 0x4044010) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xee01, 0xee01}}, './file0\x00'}) (async) bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x60, 0x0, 0x400, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}]}, 0x60}, 0x1, 0x0, 0x0, 0x14000001}, 0x4044010) (async) 17:53:44 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r1, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1000}}, './file0\x00'}) ioctl$IOCTL_GET_NUM_DEVICES(0xffffffffffffffff, 0x40046104, &(0x7f0000000000)) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:44 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000000)=ANY=[], 0xc0}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000000)=ANY=[], 0xc0}}, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) (async) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) setsockopt$sock_attach_bpf(0xffffffffffffffff, 0x1, 0x32, &(0x7f00000000c0)=r1, 0x4) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000140)=ANY=[@ANYBLOB="010000df1e00000018008000", @ANYRES32=r1, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00./file0\x00']) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$DRM_IOCTL_PRIME_FD_TO_HANDLE(r2, 0xc00c642e, &(0x7f0000000180)={0x0, 0x0, r3}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) [ 1114.908604] nbd: must specify a device to reconfigure 17:53:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="0000f5ff000000000000020084120800010000000000114f98cd2f2eb7729d5d221e0406a92fc535db80904809b0be12297f73d2eb91c32e181bcd809b398ea6eff51d93607a032e560edb9fe18ba7b75ae2ef72d9d4eb58d64281a1d978bcbe785dac683eb28b04cd76ed76584ad4ae70d3f11485f8fd675841"], 0x1c}}, 0x0) 17:53:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x20, r3, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x4880}, 0x40000) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x20, r3, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x4880}, 0x40000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) 17:53:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r1, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1000}}, './file0\x00'}) (async) ioctl$IOCTL_GET_NUM_DEVICES(0xffffffffffffffff, 0x40046104, &(0x7f0000000000)) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xee01, 0xee01}}, './file0\x00'}) (async) r5 = bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) (async) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x60, 0x0, 0x400, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}]}, 0x60}, 0x1, 0x0, 0x0, 0x14000001}, 0x4044010) 17:53:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r1, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1000}}, './file0\x00'}) ioctl$IOCTL_GET_NUM_DEVICES(0xffffffffffffffff, 0x40046104, &(0x7f0000000000)) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="0000f5ff000000000000020084120800010000000000114f98cd2f2eb7729d5d221e0406a92fc535db80904809b0be12297f73d2eb91c32e181bcd809b398ea6eff51d93607a032e560edb9fe18ba7b75ae2ef72d9d4eb58d64281a1d978bcbe785dac683eb28b04cd76ed76584ad4ae70d3f11485f8fd675841"], 0x1c}}, 0x0) [ 1115.119085] nbd: must specify a device to reconfigure 17:53:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r1, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1000}}, './file0\x00'}) ioctl$IOCTL_GET_NUM_DEVICES(0xffffffffffffffff, 0x40046104, &(0x7f0000000000)) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r1, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1000}}, './file0\x00'}) (async) ioctl$IOCTL_GET_NUM_DEVICES(0xffffffffffffffff, 0x40046104, &(0x7f0000000000)) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x20, r3, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x4880}, 0x40000) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) 17:53:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="0000f5ff000000000000020084120800010000000000114f98cd2f2eb7729d5d221e0406a92fc535db80904809b0be12297f73d2eb91c32e181bcd809b398ea6eff51d93607a032e560edb9fe18ba7b75ae2ef72d9d4eb58d64281a1d978bcbe785dac683eb28b04cd76ed76584ad4ae70d3f11485f8fd675841"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="0000f5ff000000000000020084120800010000000000114f98cd2f2eb7729d5d221e0406a92fc535db80904809b0be12297f73d2eb91c32e181bcd809b398ea6eff51d93607a032e560edb9fe18ba7b75ae2ef72d9d4eb58d64281a1d978bcbe785dac683eb28b04cd76ed76584ad4ae70d3f11485f8fd675841"], 0x1c}}, 0x0) (async) 17:53:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x90}]}, 0x20}}, 0x0) 17:53:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r7, 0xc018937e, &(0x7f0000000680)={{0x1, 0x1, 0x18, r4, {0x4}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) 17:53:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="c0000000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800018fe610e3b3dd410000000000"], 0x1c}}, 0x0) 17:53:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) 17:53:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r2 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xa, &(0x7f0000000080)={0x6, &(0x7f0000000040)=[{0x0, 0x9, 0x2, 0x3}, {0x4, 0x80, 0x1a, 0xfffffc01}, {0x8000, 0x2, 0xa, 0x40}, {0x3f, 0x8, 0x4, 0xc871}, {0x100, 0x8, 0xff, 0x20}, {0x2, 0x2, 0xcf, 0x8000}]}) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(r1, 0xc0189374, &(0x7f00000000c0)={{0x1, 0x1, 0x18, r2, {0xffffffff}}, './file0\x00'}) [ 1115.390506] nbd: must specify an index to disconnect 17:53:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x90}]}, 0x20}}, 0x0) [ 1115.413664] nbd: must specify a device to reconfigure 17:53:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x68}, 0x1, 0x0, 0x0, 0x4048010}, 0x20000800) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, r2, 0x20, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x40000}, 0x4008065) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r5) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000003c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000400), 0x101, 0x0) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000440)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x7, 0x9f}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000600)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x7c, r7, 0x300, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffffffffffff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8111bb5}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8, 0x1, r10}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x11}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000002}, 0x80) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r4, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) 17:53:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="c0000000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800018fe610e3b3dd410000000000"], 0x1c}}, 0x0) 17:53:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r7, 0xc018937e, &(0x7f0000000680)={{0x1, 0x1, 0x18, r4, {0x4}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) 17:53:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async, rerun: 64) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) (async, rerun: 64) r2 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xa, &(0x7f0000000080)={0x6, &(0x7f0000000040)=[{0x0, 0x9, 0x2, 0x3}, {0x4, 0x80, 0x1a, 0xfffffc01}, {0x8000, 0x2, 0xa, 0x40}, {0x3f, 0x8, 0x4, 0xc871}, {0x100, 0x8, 0xff, 0x20}, {0x2, 0x2, 0xcf, 0x8000}]}) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(r1, 0xc0189374, &(0x7f00000000c0)={{0x1, 0x1, 0x18, r2, {0xffffffff}}, './file0\x00'}) 17:53:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x90}]}, 0x20}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x90}]}, 0x20}}, 0x0) (async) [ 1115.561017] nbd: must specify an index to disconnect 17:53:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x68}, 0x1, 0x0, 0x0, 0x4048010}, 0x20000800) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, r2, 0x20, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x40000}, 0x4008065) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r5) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000003c0)={{0x1, 0x1, 0x18}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000003c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000400), 0x101, 0x0) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000440)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x7, 0x9f}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000600)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x7c, r7, 0x300, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffffffffffff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8111bb5}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8, 0x1, r10}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x11}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000002}, 0x80) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) 17:53:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="c0000000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800018fe610e3b3dd410000000000"], 0x1c}}, 0x0) 17:53:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r2 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xa, &(0x7f0000000080)={0x6, &(0x7f0000000040)=[{0x0, 0x9, 0x2, 0x3}, {0x4, 0x80, 0x1a, 0xfffffc01}, {0x8000, 0x2, 0xa, 0x40}, {0x3f, 0x8, 0x4, 0xc871}, {0x100, 0x8, 0xff, 0x20}, {0x2, 0x2, 0xcf, 0x8000}]}) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(r1, 0xc0189374, &(0x7f00000000c0)={{0x1, 0x1, 0x18, r2, {0xffffffff}}, './file0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000000)={{0x1, 0x1, 0x18}, './file0\x00'}) (async) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xa, &(0x7f0000000080)={0x6, &(0x7f0000000040)=[{0x0, 0x9, 0x2, 0x3}, {0x4, 0x80, 0x1a, 0xfffffc01}, {0x8000, 0x2, 0xa, 0x40}, {0x3f, 0x8, 0x4, 0xc871}, {0x100, 0x8, 0xff, 0x20}, {0x2, 0x2, 0xcf, 0x8000}]}) (async) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(r1, 0xc0189374, &(0x7f00000000c0)={{0x1, 0x1, 0x18, r2, {0xffffffff}}, './file0\x00'}) (async) 17:53:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r7, 0xc018937e, &(0x7f0000000680)={{0x1, 0x1, 0x18, r4, {0x4}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) [ 1115.749462] nbd: must specify an index to disconnect 17:53:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async, rerun: 64) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) (rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x68}, 0x1, 0x0, 0x0, 0x4048010}, 0x20000800) (async, rerun: 64) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, r2, 0x20, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x40000}, 0x4008065) (rerun: 64) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 64) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r5) (rerun: 64) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000003c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) (async) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000400), 0x101, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000440)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x7, 0x9f}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000600)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x7c, r7, 0x300, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffffffffffff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8111bb5}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8, 0x1, r10}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x11}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000002}, 0x80) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (rerun: 32) [ 1115.785517] nbd: must specify an index to disconnect 17:53:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x30, r5, 0x200, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}!'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '^]'}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000045}, 0x20001000) 17:53:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) 17:53:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f0000000140)={&(0x7f0000000100)="669d30db2d066d62fc72f9aa35f00b860dcdca8091ee701ae76d7f26f45ae6ee0aa5c4e8760f9752", 0x28}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x70bd2d, 0x200000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x2, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x61}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '-#'}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000020}, 0x20040001) 17:53:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000080)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x6}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x74, r1, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x74}, 0x1, 0x0, 0x0, 0x9090}, 0x4800) 17:53:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) 17:53:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x30, r5, 0x200, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}!'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '^]'}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000045}, 0x20001000) [ 1115.903448] nbd: must specify a device to reconfigure 17:53:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f0000000140)={&(0x7f0000000100)="669d30db2d066d62fc72f9aa35f00b860dcdca8091ee701ae76d7f26f45ae6ee0aa5c4e8760f9752", 0x28}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x70bd2d, 0x200000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x70bd2d, 0x200000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x2, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x61}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '-#'}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000020}, 0x20040001) 17:53:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) 17:53:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000000680)={{0x1, 0x1, 0x18, r1, {0x100}}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_open_dev$evdev(&(0x7f0000000600), 0x62cdef9c, 0x721000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000640), r4) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="59ad13ce", @ANYRES16=r5, @ANYBLOB="000429bd7000fbdbdf250100000005000a00000000000c000400ff7f0000000000000c00040002000000000000000c00050005000000000000001400078008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r6, @ANYBLOB], 0x54}, 0x1, 0x0, 0x0, 0x24000010}, 0x4000000) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000005c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x5c, 0x0, 0x4, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x99}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x4080) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) write$RDMA_USER_CM_CMD_LISTEN(r9, &(0x7f0000000200)={0x7, 0x8, 0xfa00, {0xffffffffffffffff, 0x9}}, 0x10) r10 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r10) getuid() r11 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r11) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x4851}, 0x0) 17:53:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f0000000140)={&(0x7f0000000100)="669d30db2d066d62fc72f9aa35f00b860dcdca8091ee701ae76d7f26f45ae6ee0aa5c4e8760f9752", 0x28}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x70bd2d, 0x200000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x2, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x61}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '-#'}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000020}, 0x20040001) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f0000000140)={&(0x7f0000000100)="669d30db2d066d62fc72f9aa35f00b860dcdca8091ee701ae76d7f26f45ae6ee0aa5c4e8760f9752", 0x28}) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x70bd2d, 0x200000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x2, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x61}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '-#'}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000020}, 0x20040001) (async) 17:53:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:46 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000080)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x6}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x74, r1, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x74}, 0x1, 0x0, 0x0, 0x9090}, 0x4800) 17:53:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) [ 1116.296490] nbd: must specify a device to reconfigure 17:53:46 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x30, r5, 0x200, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}!'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '^]'}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000045}, 0x20001000) 17:53:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) 17:53:46 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) (async) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000000680)={{0x1, 0x1, 0x18, r1, {0x100}}, './file0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_open_dev$evdev(&(0x7f0000000600), 0x62cdef9c, 0x721000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000640), r4) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="59ad13ce", @ANYRES16=r5, @ANYBLOB="000429bd7000fbdbdf250100000005000a00000000000c000400ff7f0000000000000c00040002000000000000000c00050005000000000000001400078008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r6, @ANYBLOB], 0x54}, 0x1, 0x0, 0x0, 0x24000010}, 0x4000000) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="59ad13ce", @ANYRES16=r5, @ANYBLOB="000429bd7000fbdbdf250100000005000a00000000000c000400ff7f0000000000000c00040002000000000000000c00050005000000000000001400078008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r6, @ANYBLOB], 0x54}, 0x1, 0x0, 0x0, 0x24000010}, 0x4000000) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000005c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x5c, 0x0, 0x4, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x99}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x4080) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) write$RDMA_USER_CM_CMD_LISTEN(r9, &(0x7f0000000200)={0x7, 0x8, 0xfa00, {0xffffffffffffffff, 0x9}}, 0x10) r10 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r10) getuid() r11 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r11) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x4851}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x4851}, 0x0) 17:53:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) 17:53:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c61a24315cc004af12c8ebdc41865121ad0e578a729926c7ae5da7db84c4eb9277da19bddc393b17d27f5425c4dbf6a37594dcfbd8f93e149cf33fd01fb9a5e48385de9b265ea259e660000000000", @ANYRES16=0x0, @ANYBLOB="000400000000ffdbdf25020000000800010000000000"], 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x400, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x64}, 0x1, 0x0, 0x0, 0x24000800}, 0x2400c085) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r5) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r4, 0x300, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '@{\\/*'}]}, 0x20}, 0x1, 0x0, 0x0, 0x4001}, 0x0) 17:53:46 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000080)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x6}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x74, r1, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x74}, 0x1, 0x0, 0x0, 0x9090}, 0x4800) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x74, r1, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x74}, 0x1, 0x0, 0x0, 0x9090}, 0x4800) [ 1116.503969] nbd: must specify a device to reconfigure 17:53:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x88, r1, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe3a3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000000}, 0x2004c800) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r4, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) 17:53:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c61a24315cc004af12c8ebdc41865121ad0e578a729926c7ae5da7db84c4eb9277da19bddc393b17d27f5425c4dbf6a37594dcfbd8f93e149cf33fd01fb9a5e48385de9b265ea259e660000000000", @ANYRES16=0x0, @ANYBLOB="000400000000ffdbdf25020000000800010000000000"], 0x1c}}, 0x0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x400, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x64}, 0x1, 0x0, 0x0, 0x24000800}, 0x2400c085) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r5) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r4, 0x300, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '@{\\/*'}]}, 0x20}, 0x1, 0x0, 0x0, 0x4001}, 0x0) 17:53:46 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000000680)={{0x1, 0x1, 0x18, r1, {0x100}}, './file0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_open_dev$evdev(&(0x7f0000000600), 0x62cdef9c, 0x721000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000640), r4) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000640), r4) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="59ad13ce", @ANYRES16=r5, @ANYBLOB="000429bd7000fbdbdf250100000005000a00000000000c000400ff7f0000000000000c00040002000000000000000c00050005000000000000001400078008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r6, @ANYBLOB], 0x54}, 0x1, 0x0, 0x0, 0x24000010}, 0x4000000) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000005c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x5c, 0x0, 0x4, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x99}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x4080) (async) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000005c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x5c, 0x0, 0x4, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x99}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x4080) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) write$RDMA_USER_CM_CMD_LISTEN(r9, &(0x7f0000000200)={0x7, 0x8, 0xfa00, {0xffffffffffffffff, 0x9}}, 0x10) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) (async) r10 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r10) (async) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r10) getuid() r11 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r11) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x4851}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x4851}, 0x0) 17:53:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x88, r1, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe3a3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000000}, 0x2004c800) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x88, r1, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe3a3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000000}, 0x2004c800) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:46 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000480)={0x14, 0x0, 0x0, 0x0, 0x1}, 0x14}}, 0x0) 17:53:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) 17:53:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c61a24315cc004af12c8ebdc41865121ad0e578a729926c7ae5da7db84c4eb9277da19bddc393b17d27f5425c4dbf6a37594dcfbd8f93e149cf33fd01fb9a5e48385de9b265ea259e660000000000", @ANYRES16=0x0, @ANYBLOB="000400000000ffdbdf25020000000800010000000000"], 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x400, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x64}, 0x1, 0x0, 0x0, 0x24000800}, 0x2400c085) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r5) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r4, 0x300, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '@{\\/*'}]}, 0x20}, 0x1, 0x0, 0x0, 0x4001}, 0x0) [ 1116.837486] ieee802154 phy0 wpan0: encryption failed: -22 [ 1116.843182] ieee802154 phy1 wpan1: encryption failed: -22 17:53:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) 17:53:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r7 = accept$phonet_pipe(0xffffffffffffffff, &(0x7f0000000300), &(0x7f0000000340)=0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000380)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r7, @ANYBLOB="00000000000000002e2f66696c658a0f"]) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r6, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x4}, 0x4011) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r4, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000001f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:46 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000480)={0x14, 0x0, 0x0, 0x0, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000480)={0x14, 0x0, 0x0, 0x0, 0x1}, 0x14}}, 0x0) 17:53:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) (async) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x88, r1, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe3a3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000000}, 0x2004c800) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) r2 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r2) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000040)={{0x1, 0x1, 0x18, r2, {0x80000001, 0xfffff3f5}}, './file0\x00'}) r4 = syz_open_dev$dri(&(0x7f0000000080), 0x2, 0x0) r5 = syz_open_dev$dri(&(0x7f0000000100), 0x100000000, 0x4000) ioctl$DRM_IOCTL_CONTROL(r4, 0x40086414, &(0x7f00000000c0)={0x2, 0x7}) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r4, {0xee00}}, './file0\x00'}) getresgid(&(0x7f0000000180)=0x0, &(0x7f00000001c0), &(0x7f0000000200)) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r6, 0xc018937b, &(0x7f0000000240)={{0x1, 0x1, 0x18, r5, {r7, r8}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) [ 1117.036893] nbd: must specify a device to reconfigure 17:53:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) r7 = accept$phonet_pipe(0xffffffffffffffff, &(0x7f0000000300), &(0x7f0000000340)=0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000380)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r7, @ANYBLOB="00000000000000002e2f66696c658a0f"]) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r6, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x4}, 0x4011) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r4, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000001f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) 17:53:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000480)={0x14, 0x0, 0x0, 0x0, 0x1}, 0x14}}, 0x0) 17:53:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) (async) openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) (async) r2 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r2) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000040)={{0x1, 0x1, 0x18, r2, {0x80000001, 0xfffff3f5}}, './file0\x00'}) r4 = syz_open_dev$dri(&(0x7f0000000080), 0x2, 0x0) r5 = syz_open_dev$dri(&(0x7f0000000100), 0x100000000, 0x4000) ioctl$DRM_IOCTL_CONTROL(r4, 0x40086414, &(0x7f00000000c0)={0x2, 0x7}) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r4, {0xee00}}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r4, {0xee00}}, './file0\x00'}) getresgid(&(0x7f0000000180)=0x0, &(0x7f00000001c0), &(0x7f0000000200)) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r6, 0xc018937b, &(0x7f0000000240)={{0x1, 0x1, 0x18, r5, {r7, r8}}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r6, 0xc018937b, &(0x7f0000000240)={{0x1, 0x1, 0x18, r5, {r7, r8}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x3, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) [ 1117.259411] nbd: must specify a device to reconfigure 17:53:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r7 = accept$phonet_pipe(0xffffffffffffffff, &(0x7f0000000300), &(0x7f0000000340)=0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000380)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r7, @ANYBLOB="00000000000000002e2f66696c658a0f"]) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r6, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x4}, 0x4011) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r4, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000001f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) accept$phonet_pipe(0xffffffffffffffff, &(0x7f0000000300), &(0x7f0000000340)=0x10) (async) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000380)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r7, @ANYBLOB="00000000000000002e2f66696c658a0f"]) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r6, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x4}, 0x4011) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r4, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000001f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) r2 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r2) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000040)={{0x1, 0x1, 0x18, r2, {0x80000001, 0xfffff3f5}}, './file0\x00'}) r4 = syz_open_dev$dri(&(0x7f0000000080), 0x2, 0x0) r5 = syz_open_dev$dri(&(0x7f0000000100), 0x100000000, 0x4000) ioctl$DRM_IOCTL_CONTROL(r4, 0x40086414, &(0x7f00000000c0)={0x2, 0x7}) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r4, {0xee00}}, './file0\x00'}) getresgid(&(0x7f0000000180)=0x0, &(0x7f00000001c0), &(0x7f0000000200)) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r6, 0xc018937b, &(0x7f0000000240)={{0x1, 0x1, 0x18, r5, {r7, r8}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) (async) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r2) (async) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000040)={{0x1, 0x1, 0x18, r2, {0x80000001, 0xfffff3f5}}, './file0\x00'}) (async) syz_open_dev$dri(&(0x7f0000000080), 0x2, 0x0) (async) syz_open_dev$dri(&(0x7f0000000100), 0x100000000, 0x4000) (async) ioctl$DRM_IOCTL_CONTROL(r4, 0x40086414, &(0x7f00000000c0)={0x2, 0x7}) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r4, {0xee00}}, './file0\x00'}) (async) getresgid(&(0x7f0000000180), &(0x7f00000001c0), &(0x7f0000000200)) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r6, 0xc018937b, &(0x7f0000000240)={{0x1, 0x1, 0x18, r5, {r7, r8}}, './file0\x00'}) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:47 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x3, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) 17:53:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x84, r3, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4000000000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x84}, 0x1, 0x0, 0x0, 0x4040}, 0x6000cc90) [ 1117.493785] nbd: must specify a device to reconfigure 17:53:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) 17:53:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x3, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x3, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) 17:53:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000200)={&(0x7f0000000040)={0x1c, r1, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4008000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14002000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) 17:53:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x84, r3, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4000000000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x84}, 0x1, 0x0, 0x0, 0x4040}, 0x6000cc90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x84, r3, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4000000000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x84}, 0x1, 0x0, 0x0, 0x4040}, 0x6000cc90) (async) [ 1117.608048] nbd: must specify a device to reconfigure 17:53:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000200)={&(0x7f0000000040)={0x1c, r1, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4008000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14002000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000200)={&(0x7f0000000040)={0x1c, r1, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4008000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14002000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) (async) 17:53:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000240)={&(0x7f0000000840)={0xa4, r5, 0x400, 0x0, 0x1, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x82, 0xa, '\xa6)\xfd\xbd\xe0\x18j\xd4\xf4o\xf2\xbc\xf3\x86]xT\x92,\xc4\f(\xde\x82\xee\x84\x13\xb1\xbb\xd8\xe4\x95O$\b\xfe\xa5\xe1\xab\x95\x93\xca\xba\xe2\x1d\v\xc4\xff\b\x9eX\x13v4\xda\xea\x83<\x13\r\x01(i\xcc\x19U9\\\xd8\x0f\xce\xed\xf5\xd5\xa1\xe7\xaa\x9a\xc9\'\n\xf20\xf3\xab,\xff\x84\xd3\xb0?a\x9f\x83\x9c\xe2c\x80\xe1\x8e\xd5\xa9\xc8\x18\x84\xc9N=\xbfa\x834\x12\v\n\xdd\x93\x8eW\x8d\xcfCl3*\x89'}]}, 0xa4}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="2c008332", @ANYRES16=r5, @ANYBLOB="02002abd7000fbdbdf25020000000c00050001000000000000000c0008004000000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x4800}, 0x20) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000680)={0xffffffffffffffff}) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000006c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000700)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r6, &(0x7f0000000800)={&(0x7f0000000640)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000007c0)={&(0x7f0000000740)={0x6c, r1, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xee}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}]}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4000000}, 0x8000) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r12 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r13 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r12) sendmsg$NBD_CMD_RECONFIGURE(r12, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)=ANY=[@ANYBLOB=',\x00\n\x00', @ANYRES16=r13, @ANYBLOB="01000000000000000000030000000c00040000000000000000000c0006000000000000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r6, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x7c, r13, 0x100, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x10001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffffab}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x24000014}, 0x48040) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r14 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r14, 0x5001, 0x0) r15 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r15, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000440)={&(0x7f0000000540)={0x88, 0x0, 0x4, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '/}\\*\x92'}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r14}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r15}]}]}, 0x88}, 0x1, 0x0, 0x0, 0x20040080}, 0xc014) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000180)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x10001}}, './file0\x00'}) setsockopt$PNPIPE_HANDLE(r16, 0x113, 0x3, &(0x7f0000000200)=0xffff0001, 0x4) [ 1117.771969] nbd: must specify a device to reconfigure 17:53:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x84, r3, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4000000000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x84}, 0x1, 0x0, 0x0, 0x4040}, 0x6000cc90) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x84, r3, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4000000000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x84}, 0x1, 0x0, 0x0, 0x4040}, 0x6000cc90) (async) 17:53:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x54, r3, 0x400, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x80}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x83c8a7961d8b3731}, 0x8040) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) ioctl$NBD_SET_SOCK(r4, 0xab00, r5) 17:53:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) 17:53:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) 17:53:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000240)={&(0x7f0000000840)={0xa4, r5, 0x400, 0x0, 0x1, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x82, 0xa, '\xa6)\xfd\xbd\xe0\x18j\xd4\xf4o\xf2\xbc\xf3\x86]xT\x92,\xc4\f(\xde\x82\xee\x84\x13\xb1\xbb\xd8\xe4\x95O$\b\xfe\xa5\xe1\xab\x95\x93\xca\xba\xe2\x1d\v\xc4\xff\b\x9eX\x13v4\xda\xea\x83<\x13\r\x01(i\xcc\x19U9\\\xd8\x0f\xce\xed\xf5\xd5\xa1\xe7\xaa\x9a\xc9\'\n\xf20\xf3\xab,\xff\x84\xd3\xb0?a\x9f\x83\x9c\xe2c\x80\xe1\x8e\xd5\xa9\xc8\x18\x84\xc9N=\xbfa\x834\x12\v\n\xdd\x93\x8eW\x8d\xcfCl3*\x89'}]}, 0xa4}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000240)={&(0x7f0000000840)={0xa4, r5, 0x400, 0x0, 0x1, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x82, 0xa, '\xa6)\xfd\xbd\xe0\x18j\xd4\xf4o\xf2\xbc\xf3\x86]xT\x92,\xc4\f(\xde\x82\xee\x84\x13\xb1\xbb\xd8\xe4\x95O$\b\xfe\xa5\xe1\xab\x95\x93\xca\xba\xe2\x1d\v\xc4\xff\b\x9eX\x13v4\xda\xea\x83<\x13\r\x01(i\xcc\x19U9\\\xd8\x0f\xce\xed\xf5\xd5\xa1\xe7\xaa\x9a\xc9\'\n\xf20\xf3\xab,\xff\x84\xd3\xb0?a\x9f\x83\x9c\xe2c\x80\xe1\x8e\xd5\xa9\xc8\x18\x84\xc9N=\xbfa\x834\x12\v\n\xdd\x93\x8eW\x8d\xcfCl3*\x89'}]}, 0xa4}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="2c008332", @ANYRES16=r5, @ANYBLOB="02002abd7000fbdbdf25020000000c00050001000000000000000c0008004000000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x4800}, 0x20) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000680)={0xffffffffffffffff}) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000006c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000700)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r6, &(0x7f0000000800)={&(0x7f0000000640)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000007c0)={&(0x7f0000000740)={0x6c, r1, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xee}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}]}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4000000}, 0x8000) (async) sendmsg$NBD_CMD_STATUS(r6, &(0x7f0000000800)={&(0x7f0000000640)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000007c0)={&(0x7f0000000740)={0x6c, r1, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xee}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}]}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4000000}, 0x8000) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r12 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r12) (async) r13 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r12) sendmsg$NBD_CMD_RECONFIGURE(r12, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)=ANY=[@ANYBLOB=',\x00\n\x00', @ANYRES16=r13, @ANYBLOB="01000000000000000000030000000c00040000000000000000000c0006000000000000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r6, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x7c, r13, 0x100, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x10001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffffab}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x24000014}, 0x48040) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r14 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r14, 0x5001, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r15 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r15, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000440)={&(0x7f0000000540)={0x88, 0x0, 0x4, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '/}\\*\x92'}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r14}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r15}]}]}, 0x88}, 0x1, 0x0, 0x0, 0x20040080}, 0xc014) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000180)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x10001}}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000180)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x10001}}, './file0\x00'}) setsockopt$PNPIPE_HANDLE(r16, 0x113, 0x3, &(0x7f0000000200)=0xffff0001, 0x4) (async) setsockopt$PNPIPE_HANDLE(r16, 0x113, 0x3, &(0x7f0000000200)=0xffff0001, 0x4) 17:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000200)={&(0x7f0000000040)={0x1c, r1, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4008000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14002000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000200)={&(0x7f0000000040)={0x1c, r1, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4008000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14002000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) (async) 17:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x54, r3, 0x400, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x80}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x83c8a7961d8b3731}, 0x8040) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) ioctl$NBD_SET_SOCK(r4, 0xab00, r5) 17:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) [ 1117.977079] nbd: must specify a device to reconfigure [ 1117.992495] nbd: must specify a device to reconfigure 17:53:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) socket(0x2, 0xa, 0xffff) 17:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="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"], 0x1c}}, 0x0) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$NBD_SET_SOCK(r1, 0xab00, 0xffffffffffffffff) 17:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) inotify_init1(0x80800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) ioctl$SNDCTL_DSP_SETTRIGGER(0xffffffffffffffff, 0x40045010, &(0x7f00000007c0)=0x4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)={0x2c, r1, 0x2, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40090}, 0x40) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r7) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000480)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x14, r8, 0x10}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000240)={&(0x7f00000002c0)=ANY=[@ANYBLOB="0000000063e470becc48ee658c62a11e25520701000000000000004ab1e155d3a3e9774d2c59527b08000bf2e5b7703f278e64153537bdb3046c6b41a0f52e4d6ee4e174cb552967710e1818ce0c90e0519183b3122411ea323ad2b7bc68afef664f0bef60b93e262f53add3739bca7236fa0a3da3f137bd9cc1d32a2ea164", @ANYRES16=r6, @ANYBLOB="000425bd7000fddbdf25030000000c000500070000000000000008000100000000000c00078008000100", @ANYRES32, @ANYBLOB="08002b7654af0000"], 0x3c}, 0x1, 0x0, 0x0, 0x4}, 0x40080) getsockopt$PNPIPE_HANDLE(0xffffffffffffffff, 0x113, 0x3, &(0x7f0000000040), &(0x7f0000000380)=0x4) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$DRM_IOCTL_SG_ALLOC(r9, 0xc0106438, &(0x7f0000000440)={0x2}) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$EVIOCGSND(r9, 0x8040451a, &(0x7f00000003c0)=""/78) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(r9, 0x7a6, &(0x7f0000000800)={0x1, 0x1, 0x5, 0x6894, 0x7ff, 0x8}) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r10) sendmsg$NBD_CMD_RECONFIGURE(r10, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20080840}, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r9, 0xc0189371, &(0x7f0000000680)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r7, &(0x7f0000000780)={&(0x7f0000000640)={0x10, 0x0, 0x0, 0x81000}, 0xc, &(0x7f0000000740)={&(0x7f00000006c0)=ANY=[@ANYBLOB='T\x00\x00\x00', @ANYRES16=r11, @ANYBLOB="020028bd7000fbdbdf25010000000c00030002000000000000001c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="0c000c0006000200000000000000"], 0x54}, 0x1, 0x0, 0x0, 0x4000080}, 0x4004800) 17:53:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000240)={&(0x7f0000000840)={0xa4, r5, 0x400, 0x0, 0x1, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x82, 0xa, '\xa6)\xfd\xbd\xe0\x18j\xd4\xf4o\xf2\xbc\xf3\x86]xT\x92,\xc4\f(\xde\x82\xee\x84\x13\xb1\xbb\xd8\xe4\x95O$\b\xfe\xa5\xe1\xab\x95\x93\xca\xba\xe2\x1d\v\xc4\xff\b\x9eX\x13v4\xda\xea\x83<\x13\r\x01(i\xcc\x19U9\\\xd8\x0f\xce\xed\xf5\xd5\xa1\xe7\xaa\x9a\xc9\'\n\xf20\xf3\xab,\xff\x84\xd3\xb0?a\x9f\x83\x9c\xe2c\x80\xe1\x8e\xd5\xa9\xc8\x18\x84\xc9N=\xbfa\x834\x12\v\n\xdd\x93\x8eW\x8d\xcfCl3*\x89'}]}, 0xa4}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="2c008332", @ANYRES16=r5, @ANYBLOB="02002abd7000fbdbdf25020000000c00050001000000000000000c0008004000000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x4800}, 0x20) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) (async) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000680)={0xffffffffffffffff}) (async) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000006c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000700)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r6, &(0x7f0000000800)={&(0x7f0000000640)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000007c0)={&(0x7f0000000740)={0x6c, r1, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xee}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}]}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4000000}, 0x8000) (async) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) r12 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r13 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r12) sendmsg$NBD_CMD_RECONFIGURE(r12, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)=ANY=[@ANYBLOB=',\x00\n\x00', @ANYRES16=r13, @ANYBLOB="01000000000000000000030000000c00040000000000000000000c0006000000000000000000"], 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r6, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x7c, r13, 0x100, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x10001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffffab}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x24000014}, 0x48040) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r14 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r14, 0x5001, 0x0) r15 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r15, 0x5001, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000440)={&(0x7f0000000540)={0x88, 0x0, 0x4, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '/}\\*\x92'}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r14}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r15}]}]}, 0x88}, 0x1, 0x0, 0x0, 0x20040080}, 0xc014) (async) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000180)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x10001}}, './file0\x00'}) setsockopt$PNPIPE_HANDLE(r16, 0x113, 0x3, &(0x7f0000000200)=0xffff0001, 0x4) 17:53:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket(0x2, 0xa, 0xffff) [ 1118.153915] nbd: must specify a device to reconfigure 17:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="0351b1677605c9355f0a1174f6ae69c275133d618d542a57f5da95c6131b906e1855b4f5e58f4828146c28ff73fb5621d044213bbc31e7e078e830f3bdef95c6df8873b894c7fc868802b5ce155845f2ab9d7f017d6a774a2e1a2b6d3991ef53d66b854a825391a2c0b5f336769753fb2a1ea417798f0634508d3344d60ec2a47dd3d01f285aacdd8d8014eda81fba358f5ad6a9b5bdb665eef8e56ed0ccdf56214a4d2f7f9d1ae576b81955950f07b0e71cdfcb0138d25ef81e703ce0f5e668d42b9c264e1c2284f06ef1169596b7e2094685105e19d28e50b9e08651e3557a0710afb2c6adde5a61d5a5ec80d0034f49c2b906f92e75d0c7b36d56c54f75188f03c7ffceda976e41b85cf2410bf0d6a1ddc2d0ec146f21774764be04a8a85de7616b96eee070e68f02e55cf11b8f74c98080fd0ff773109ecd73776d3e5a7075b937ebd58a04bfd8692ad761cc8017eced62d194cf14f336b32be14a17ccd28097cec2865415f303a73d481e93"], 0x1c}}, 0x0) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) ioctl$NBD_SET_SOCK(r1, 0xab00, 0xffffffffffffffff) [ 1118.185191] nbd: must specify a device to reconfigure 17:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x54, r3, 0x400, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x80}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x83c8a7961d8b3731}, 0x8040) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) ioctl$NBD_SET_SOCK(r4, 0xab00, r5) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x54, r3, 0x400, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x80}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x83c8a7961d8b3731}, 0x8040) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) (async) ioctl$NBD_SET_SOCK(r4, 0xab00, r5) (async) [ 1118.254574] nbd: must specify a device to reconfigure 17:53:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c00fa004e42af97a08e098131c9788e8b0c234ae8d251a90200f10fb4579f5f14752b1b003f48901792d99aff", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket(0x2, 0xa, 0xffff) [ 1118.298617] nbd: must specify a device to reconfigure 17:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="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"], 0x1c}}, 0x0) (async) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) ioctl$NBD_SET_SOCK(r1, 0xab00, 0xffffffffffffffff) 17:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) inotify_init1(0x80800) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) ioctl$SNDCTL_DSP_SETTRIGGER(0xffffffffffffffff, 0x40045010, &(0x7f00000007c0)=0x4) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)={0x2c, r1, 0x2, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40090}, 0x40) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r7) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000480)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x14, r8, 0x10}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000240)={&(0x7f00000002c0)=ANY=[@ANYBLOB="0000000063e470becc48ee658c62a11e25520701000000000000004ab1e155d3a3e9774d2c59527b08000bf2e5b7703f278e64153537bdb3046c6b41a0f52e4d6ee4e174cb552967710e1818ce0c90e0519183b3122411ea323ad2b7bc68afef664f0bef60b93e262f53add3739bca7236fa0a3da3f137bd9cc1d32a2ea164", @ANYRES16=r6, @ANYBLOB="000425bd7000fddbdf25030000000c000500070000000000000008000100000000000c00078008000100", @ANYRES32, @ANYBLOB="08002b7654af0000"], 0x3c}, 0x1, 0x0, 0x0, 0x4}, 0x40080) getsockopt$PNPIPE_HANDLE(0xffffffffffffffff, 0x113, 0x3, &(0x7f0000000040), &(0x7f0000000380)=0x4) (async) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$DRM_IOCTL_SG_ALLOC(r9, 0xc0106438, &(0x7f0000000440)={0x2}) (async) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$EVIOCGSND(r9, 0x8040451a, &(0x7f00000003c0)=""/78) (async) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(r9, 0x7a6, &(0x7f0000000800)={0x1, 0x1, 0x5, 0x6894, 0x7ff, 0x8}) (rerun: 64) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r10) sendmsg$NBD_CMD_RECONFIGURE(r10, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20080840}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_VERSION(r9, 0xc0189371, &(0x7f0000000680)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r7, &(0x7f0000000780)={&(0x7f0000000640)={0x10, 0x0, 0x0, 0x81000}, 0xc, &(0x7f0000000740)={&(0x7f00000006c0)=ANY=[@ANYBLOB='T\x00\x00\x00', @ANYRES16=r11, @ANYBLOB="020028bd7000fbdbdf25010000000c00030002000000000000001c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="0c000c0006000200000000000000"], 0x54}, 0x1, 0x0, 0x0, 0x4000080}, 0x4004800) 17:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) [ 1118.339498] nbd: must specify a device to reconfigure 17:53:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c00fa004e42af97a08e098131c9788e8b0c234ae8d251a90200f10fb4579f5f14752b1b003f48901792d99aff", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) socket(0x2, 0xa, 0xffff) 17:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="d6003627dfad324cb20f00000000000000", @ANYRES16=0x0, @ANYBLOB="00002dbd700000000000020000000800010000000000"], 0x1c}}, 0x0) bpf$PROG_BIND_MAP(0x23, &(0x7f0000000000), 0xc) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) bpf$PROG_BIND_MAP(0x23, &(0x7f0000000040)={r1}, 0xc) 17:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) 17:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) (async) inotify_init1(0x80800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) ioctl$SNDCTL_DSP_SETTRIGGER(0xffffffffffffffff, 0x40045010, &(0x7f00000007c0)=0x4) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)={0x2c, r1, 0x2, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40090}, 0x40) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r7) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000480)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x14, r8, 0x10}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000240)={&(0x7f00000002c0)=ANY=[@ANYBLOB="0000000063e470becc48ee658c62a11e25520701000000000000004ab1e155d3a3e9774d2c59527b08000bf2e5b7703f278e64153537bdb3046c6b41a0f52e4d6ee4e174cb552967710e1818ce0c90e0519183b3122411ea323ad2b7bc68afef664f0bef60b93e262f53add3739bca7236fa0a3da3f137bd9cc1d32a2ea164", @ANYRES16=r6, @ANYBLOB="000425bd7000fddbdf25030000000c000500070000000000000008000100000000000c00078008000100", @ANYRES32, @ANYBLOB="08002b7654af0000"], 0x3c}, 0x1, 0x0, 0x0, 0x4}, 0x40080) getsockopt$PNPIPE_HANDLE(0xffffffffffffffff, 0x113, 0x3, &(0x7f0000000040), &(0x7f0000000380)=0x4) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$DRM_IOCTL_SG_ALLOC(r9, 0xc0106438, &(0x7f0000000440)={0x2}) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) (async) ioctl$EVIOCGSND(r9, 0x8040451a, &(0x7f00000003c0)=""/78) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(r9, 0x7a6, &(0x7f0000000800)={0x1, 0x1, 0x5, 0x6894, 0x7ff, 0x8}) (async) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r10) sendmsg$NBD_CMD_RECONFIGURE(r10, &(0x7f0000000280)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20080840}, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r9, 0xc0189371, &(0x7f0000000680)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r7, &(0x7f0000000780)={&(0x7f0000000640)={0x10, 0x0, 0x0, 0x81000}, 0xc, &(0x7f0000000740)={&(0x7f00000006c0)=ANY=[@ANYBLOB='T\x00\x00\x00', @ANYRES16=r11, @ANYBLOB="020028bd7000fbdbdf25010000000c00030002000000000000001c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="0c000c0006000200000000000000"], 0x54}, 0x1, 0x0, 0x0, 0x4000080}, 0x4004800) 17:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="d6003627dfad324cb20f00000000000000", @ANYRES16=0x0, @ANYBLOB="00002dbd700000000000020000000800010000000000"], 0x1c}}, 0x0) (async) bpf$PROG_BIND_MAP(0x23, &(0x7f0000000000), 0xc) (async) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) bpf$PROG_BIND_MAP(0x23, &(0x7f0000000040)={r1}, 0xc) 17:53:48 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket(0x2, 0xa, 0xffff) 17:53:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c00fa004e42af97a08e098131c9788e8b0c234ae8d251a90200f10fb4579f5f14752b1b003f48901792d99aff", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c00fa004e42af97a08e098131c9788e8b0c234ae8d251a90200f10fb4579f5f14752b1b003f48901792d99aff", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) (async) 17:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="d6003627dfad324cb20f00000000000000", @ANYRES16=0x0, @ANYBLOB="00002dbd700000000000020000000800010000000000"], 0x1c}}, 0x0) bpf$PROG_BIND_MAP(0x23, &(0x7f0000000000), 0xc) (async) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) (async) bpf$PROG_BIND_MAP(0x23, &(0x7f0000000040)={r1}, 0xc) 17:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x28, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x28000}]}, 0x28}}, 0x0) 17:53:48 executing program 1: socket(0x2, 0xa, 0xffff) [ 1118.741326] nbd: must specify a device to reconfigure [ 1118.753130] nbd: must specify a device to reconfigure 17:53:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f0000000100)=ANY=[@ANYBLOB="83f4ab7e5dce8a26", @ANYRES16=r4, @ANYBLOB="01000000000000000000030000000c00040000000000000000000c0006000000000000000000"], 0x2c}}, 0x0) r5 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0), 0x141042, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r6, 0xc0189375, &(0x7f0000000200)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r6, @ANYBLOB="e8ffffffffffffff2e2f66696c653000"]) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(r6, 0xc0189374, &(0x7f00000002c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000140)={&(0x7f0000000300)={0x88, r4, 0x601, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '\\a*(]#+:+:'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}]}, 0x88}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) 17:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0xfffffffc, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:48 executing program 1: socket(0x0, 0xa, 0xffff) 17:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x28, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x28000}]}, 0x28}}, 0x0) 17:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_AGP_UNBIND(0xffffffffffffffff, 0x40106437, &(0x7f0000000000)={0x0, 0x7}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f0000000100)=ANY=[@ANYBLOB="83f4ab7e5dce8a26", @ANYRES16=r4, @ANYBLOB="01000000000000000000030000000c00040000000000000000000c0006000000000000000000"], 0x2c}}, 0x0) (async) r5 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0), 0x141042, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) (async) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r6, 0xc0189375, &(0x7f0000000200)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r6, @ANYBLOB="e8ffffffffffffff2e2f66696c653000"]) (async) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(r6, 0xc0189374, &(0x7f00000002c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000140)={&(0x7f0000000300)={0x88, r4, 0x601, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '\\a*(]#+:+:'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}]}, 0x88}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (rerun: 32) 17:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) socket(0x2, 0xa, 0xffff) 17:53:49 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0xfffffffc, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x28, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x28000}]}, 0x28}}, 0x0) 17:53:49 executing program 1: socket(0x0, 0xa, 0xffff) 17:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f0000000100)=ANY=[@ANYBLOB="83f4ab7e5dce8a26", @ANYRES16=r4, @ANYBLOB="01000000000000000000030000000c00040000000000000000000c0006000000000000000000"], 0x2c}}, 0x0) (async) r5 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0), 0x141042, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) (async) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r6, 0xc0189375, &(0x7f0000000200)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r6, @ANYBLOB="e8ffffffffffffff2e2f66696c653000"]) (async) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(r6, 0xc0189374, &(0x7f00000002c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000140)={&(0x7f0000000300)={0x88, r4, 0x601, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '\\a*(]#+:+:'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}]}, 0x88}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_AGP_UNBIND(0xffffffffffffffff, 0x40106437, &(0x7f0000000000)={0x0, 0x7}) (async) ioctl$DRM_IOCTL_AGP_UNBIND(0xffffffffffffffff, 0x40106437, &(0x7f0000000000)={0x0, 0x7}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket(0x2, 0xa, 0xffff) 17:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0xfffffffc, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x48, r1, 0x200, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/zero\x00'}]}, 0x48}, 0x1, 0x0, 0x0, 0x40}, 0x0) 17:53:49 executing program 1: socket(0x0, 0xa, 0xffff) 17:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) socket(0x2, 0xa, 0xffff) 17:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$DRM_IOCTL_ADD_CTX(0xffffffffffffffff, 0xc0086420, &(0x7f0000000000)={0x0}) ioctl$DRM_IOCTL_GET_CTX(0xffffffffffffffff, 0xc0086423, &(0x7f0000000040)={r4, 0x1}) 17:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$DRM_IOCTL_AGP_UNBIND(0xffffffffffffffff, 0x40106437, &(0x7f0000000000)={0x0, 0x7}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="000000000000000000000200000008000100af8ea64c47d087b10e92854796003ad63fe7934648a77d4267e97f1562e1b53793888284de1d5153beaedb1abb55493d376d1162799d55b89462526a1c8a8ab0892cd0a65a0c8a9404bd9fb8768161afdac20602e026b9da8b9666405db193b9541dc1abdf43bb74e71669537e89da989cc11d53a5c65e5e"], 0x1c}}, 0x0) 17:53:49 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket(0x2, 0xa, 0xffff) 17:53:49 executing program 1: socket(0x2, 0x0, 0xffff) 17:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r1) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) ioctl$DRM_IOCTL_ADD_CTX(0xffffffffffffffff, 0xc0086420, &(0x7f0000000000)={0x0}) ioctl$DRM_IOCTL_GET_CTX(0xffffffffffffffff, 0xc0086423, &(0x7f0000000040)={r4, 0x1}) 17:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x48, r1, 0x200, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/zero\x00'}]}, 0x48}, 0x1, 0x0, 0x0, 0x40}, 0x0) 17:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x400, 0x3, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="000000000000000000000200000008000100af8ea64c47d087b10e92854796003ad63fe7934648a77d4267e97f1562e1b53793888284de1d5153beaedb1abb55493d376d1162799d55b89462526a1c8a8ab0892cd0a65a0c8a9404bd9fb8768161afdac20602e026b9da8b9666405db193b9541dc1abdf43bb74e71669537e89da989cc11d53a5c65e5e"], 0x1c}}, 0x0) 17:53:49 executing program 5: socket(0x2, 0xa, 0xffff) 17:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$DRM_IOCTL_ADD_CTX(0xffffffffffffffff, 0xc0086420, &(0x7f0000000000)={0x0}) ioctl$DRM_IOCTL_GET_CTX(0xffffffffffffffff, 0xc0086423, &(0x7f0000000040)={r4, 0x1}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) ioctl$DRM_IOCTL_ADD_CTX(0xffffffffffffffff, 0xc0086420, &(0x7f0000000000)) (async) ioctl$DRM_IOCTL_GET_CTX(0xffffffffffffffff, 0xc0086423, &(0x7f0000000040)={r4, 0x1}) (async) 17:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x400, 0x3, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x400, 0x3, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x48, r1, 0x200, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/zero\x00'}]}, 0x48}, 0x1, 0x0, 0x0, 0x40}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x48, r1, 0x200, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/zero\x00'}]}, 0x48}, 0x1, 0x0, 0x0, 0x40}, 0x0) 17:53:49 executing program 1: socket(0x2, 0x0, 0xffff) 17:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="000000000000000000000200000008000100af8ea64c47d087b10e92854796003ad63fe7934648a77d4267e97f1562e1b53793888284de1d5153beaedb1abb55493d376d1162799d55b89462526a1c8a8ab0892cd0a65a0c8a9404bd9fb8768161afdac20602e026b9da8b9666405db193b9541dc1abdf43bb74e71669537e89da989cc11d53a5c65e5e"], 0x1c}}, 0x0) 17:53:49 executing program 5: socket(0x0, 0xa, 0xffff) 17:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="0000feffffffffffffff9d25000000"], 0x1c}}, 0x0) 17:53:49 executing program 1: socket(0x2, 0x0, 0xffff) 17:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c00d10f", @ANYRES16=r1, @ANYBLOB="01000000000000000008000000000800010000000000"], 0x1c}}, 0x0) 17:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) r2 = bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff, 0x12}, 0x10) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r1, 0xc018937a, &(0x7f0000000140)={{0x1, 0x1, 0x18, r2, {0x100000001}}, './file0\x00'}) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000000c0)={{0x1, 0x1, 0x18, r5, {0x3}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) write$RDMA_USER_CM_CMD_NOTIFY(0xffffffffffffffff, &(0x7f0000000000)={0xf, 0x8, 0xfa00, {0xffffffffffffffff, 0x7}}, 0x10) 17:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x400, 0x3, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:49 executing program 5: socket(0x0, 0xa, 0xffff) 17:53:50 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="0000feffffffffffffff9d25000000"], 0x1c}}, 0x0) 17:53:50 executing program 1: socket(0x2, 0xa, 0x0) 17:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x44, r3, 0x800, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7ff}]}, 0x44}, 0x1, 0x0, 0x0, 0x4c81}, 0x0) 17:53:50 executing program 1: socket(0x2, 0xa, 0x0) 17:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c00d10f", @ANYRES16=r1, @ANYBLOB="01000000000000000008000000000800010000000000"], 0x1c}}, 0x0) 17:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) r2 = bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff, 0x12}, 0x10) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r1, 0xc018937a, &(0x7f0000000140)={{0x1, 0x1, 0x18, r2, {0x100000001}}, './file0\x00'}) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000000c0)={{0x1, 0x1, 0x18, r5, {0x3}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) write$RDMA_USER_CM_CMD_NOTIFY(0xffffffffffffffff, &(0x7f0000000000)={0xf, 0x8, 0xfa00, {0xffffffffffffffff, 0x7}}, 0x10) 17:53:50 executing program 1: socket(0x2, 0xa, 0x0) 17:53:50 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c00d10f", @ANYRES16=r1, @ANYBLOB="01000000000000000008000000000800010000000000"], 0x1c}}, 0x0) [ 1120.125901] nbd: must specify a device to reconfigure 17:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="0000feffffffffffffff9d25000000"], 0x1c}}, 0x0) 17:53:50 executing program 5: socket(0x0, 0xa, 0xffff) 17:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x44, r3, 0x800, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7ff}]}, 0x44}, 0x1, 0x0, 0x0, 0x4c81}, 0x0) 17:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) r2 = bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff, 0x12}, 0x10) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r1, 0xc018937a, &(0x7f0000000140)={{0x1, 0x1, 0x18, r2, {0x100000001}}, './file0\x00'}) (async, rerun: 64) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) (rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000000c0)={{0x1, 0x1, 0x18, r5, {0x3}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) write$RDMA_USER_CM_CMD_NOTIFY(0xffffffffffffffff, &(0x7f0000000000)={0xf, 0x8, 0xfa00, {0xffffffffffffffff, 0x7}}, 0x10) 17:53:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) r2 = bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff, 0x12}, 0x10) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r1, 0xc018937a, &(0x7f0000000140)={{0x1, 0x1, 0x18, r2, {0x100000001}}, './file0\x00'}) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000000c0)={{0x1, 0x1, 0x18, r5, {0x3}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) write$RDMA_USER_CM_CMD_NOTIFY(0xffffffffffffffff, &(0x7f0000000000)={0xf, 0x8, 0xfa00, {0xffffffffffffffff, 0x7}}, 0x10) 17:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x8c, 0x0, 0x2, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffff80000000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r2}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7f}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xad40}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x20004004}, 0x840) 17:53:50 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x18, 0xfa00, {0x4, &(0x7f0000000280)={0xffffffffffffffff}, 0x111, 0x8}}, 0x20) write$RDMA_USER_CM_CMD_JOIN_MCAST(0xffffffffffffffff, &(0x7f0000000300)={0x16, 0x98, 0xfa00, {&(0x7f0000000240), 0x4, r1, 0x1c, 0x1, @ib={0x1b, 0xffff, 0xa3, {"b10f363935d814117631e64855b294e2"}, 0x7ff, 0x80, 0xb9}}}, 0xa0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRESDEC=r0, @ANYRES16=r0, @ANYBLOB="0008000000080000000002000000001c3a403b00000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x28004000}, 0x880) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)=ANY=[@ANYBLOB='P\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="04002cb5700098050000000c00020002000a00000000000c87e4402000000000000000000000000000000c00060002000000000000000c0008000900"/74], 0x50}}, 0x40000) 17:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x44, r3, 0x800, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7ff}]}, 0x44}, 0x1, 0x0, 0x0, 0x4c81}, 0x0) [ 1120.308984] nbd: must specify a device to reconfigure 17:53:50 executing program 5: socket(0x2, 0x0, 0xffff) 17:53:50 executing program 1: socket(0x2, 0xa, 0x0) 17:53:50 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x18, 0xfa00, {0x4, &(0x7f0000000280)={0xffffffffffffffff}, 0x111, 0x8}}, 0x20) write$RDMA_USER_CM_CMD_JOIN_MCAST(0xffffffffffffffff, &(0x7f0000000300)={0x16, 0x98, 0xfa00, {&(0x7f0000000240), 0x4, r1, 0x1c, 0x1, @ib={0x1b, 0xffff, 0xa3, {"b10f363935d814117631e64855b294e2"}, 0x7ff, 0x80, 0xb9}}}, 0xa0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRESDEC=r0, @ANYRES16=r0, @ANYBLOB="0008000000080000000002000000001c3a403b00000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x28004000}, 0x880) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)=ANY=[@ANYBLOB='P\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="04002cb5700098050000000c00020002000a00000000000c87e4402000000000000000000000000000000c00060002000000000000000c0008000900"/74], 0x50}}, 0x40000) 17:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x8c, 0x0, 0x2, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffff80000000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r2}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7f}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xad40}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x20004004}, 0x840) 17:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r1, @ANYBLOB='\x00'/14], 0x14}}, 0x8804) 17:53:50 executing program 5: socket(0x2, 0x0, 0xffff) 17:53:50 executing program 1: socket(0x2, 0xa, 0x0) [ 1120.512399] nbd: must specify a device to reconfigure 17:53:50 executing program 2: ioctl$DRM_IOCTL_MODE_GETRESOURCES(0xffffffffffffffff, 0xc04064a0, &(0x7f0000000100)={&(0x7f0000000000), &(0x7f0000000040)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], &(0x7f0000000080)=[0x0, 0x0], &(0x7f00000000c0)=[0x0], 0x0, 0x9, 0x2, 0x1}) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:50 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) (async) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x18, 0xfa00, {0x4, &(0x7f0000000280)={0xffffffffffffffff}, 0x111, 0x8}}, 0x20) write$RDMA_USER_CM_CMD_JOIN_MCAST(0xffffffffffffffff, &(0x7f0000000300)={0x16, 0x98, 0xfa00, {&(0x7f0000000240), 0x4, r1, 0x1c, 0x1, @ib={0x1b, 0xffff, 0xa3, {"b10f363935d814117631e64855b294e2"}, 0x7ff, 0x80, 0xb9}}}, 0xa0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRESDEC=r0, @ANYRES16=r0, @ANYBLOB="0008000000080000000002000000001c3a403b00000000000000"], 0x20}, 0x1, 0x0, 0x0, 0x28004000}, 0x880) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)=ANY=[@ANYBLOB='P\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="04002cb5700098050000000c00020002000a00000000000c87e4402000000000000000000000000000000c00060002000000000000000c0008000900"/74], 0x50}}, 0x40000) 17:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r1, @ANYBLOB='\x00'/14], 0x14}}, 0x8804) 17:53:50 executing program 5: socket(0x2, 0x0, 0xffff) 17:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x8c, 0x0, 0x2, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffff80000000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r2}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7f}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xad40}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x20004004}, 0x840) 17:53:50 executing program 1: socket(0x2, 0xa, 0x0) 17:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r1, @ANYBLOB='\x00'/14], 0x14}}, 0x8804) 17:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x28, r2, 0x300, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4e0a}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000041}, 0x40000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000200)={&(0x7f00000002c0)={0xac, r3, 0x420, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6a8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x49d}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xac}, 0x1, 0x0, 0x0, 0x180}, 0x24044805) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:50 executing program 2: ioctl$DRM_IOCTL_MODE_GETRESOURCES(0xffffffffffffffff, 0xc04064a0, &(0x7f0000000100)={&(0x7f0000000000), &(0x7f0000000040)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], &(0x7f0000000080)=[0x0, 0x0], &(0x7f00000000c0)=[0x0], 0x0, 0x9, 0x2, 0x1}) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$DRM_IOCTL_MODE_GETRESOURCES(0xffffffffffffffff, 0xc04064a0, &(0x7f0000000100)={&(0x7f0000000000), &(0x7f0000000040)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], &(0x7f0000000080)=[0x0, 0x0], &(0x7f00000000c0)=[0x0], 0x0, 0x9, 0x2, 0x1}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:50 executing program 5: socket(0x2, 0xa, 0x0) 17:53:50 executing program 1: socket(0x0, 0xa, 0x0) 17:53:50 executing program 0: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) sendmsg$FOU_CMD_DEL(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x48, 0x0, 0x200, 0x70bd2a, 0x25dfdbfb, {}, [@FOU_ATTR_IPPROTO={0x5, 0x3, 0x73}, @FOU_ATTR_IPPROTO={0x5, 0x3, 0xbf016ef762c35039}, @FOU_ATTR_IFINDEX={0x8}, @FOU_ATTR_AF={0x5, 0x2, 0xa}, @FOU_ATTR_PEER_V6={0x14, 0x9, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000000}, 0x24008800) ioctl$DRM_IOCTL_CONTROL(0xffffffffffffffff, 0x40086414, &(0x7f0000000000)={0x3, 0xffffff70}) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000100)=ANY=[@ANYBLOB="0000a252a120eea521c27a540f383dce65693152b917730edad9df295b00002200000000000000", @ANYRES32=0xffffffffffffffff, @ANYRES32, @ANYBLOB='\x00\x00\x00\x00./file0\x00']) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(r0, 0xc0189373, &(0x7f0000000240)={{0x1, 0x1, 0x18, r0, {0x1}}, './file0\x00'}) ioctl$DRM_IOCTL_RES_CTX(r1, 0xc0106426, &(0x7f00000000c0)={0x8, &(0x7f0000000080)=[{}, {}, {}, {}, {}, {}, {}, {}]}) ioctl$SNDCTL_DSP_SETTRIGGER(r0, 0x40045010, &(0x7f00000002c0)=0x8000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:50 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000040)={&(0x7f0000000280)={0x60, 0x0, 0x300, 0x70bd2a, 0x25ffdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000000000000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x816e}]}, 0x60}, 0x1, 0x0, 0x0, 0x4040045}, 0x40010) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1120.847009] nbd: must specify a device to reconfigure 17:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x28, r2, 0x300, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4e0a}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000041}, 0x40000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000200)={&(0x7f00000002c0)={0xac, r3, 0x420, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6a8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x49d}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xac}, 0x1, 0x0, 0x0, 0x180}, 0x24044805) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x28, r2, 0x300, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4e0a}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000041}, 0x40000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000200)={&(0x7f00000002c0)={0xac, r3, 0x420, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6a8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x49d}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xac}, 0x1, 0x0, 0x0, 0x180}, 0x24044805) (async) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:50 executing program 1: socket(0x0, 0xa, 0x0) 17:53:50 executing program 2: ioctl$DRM_IOCTL_MODE_GETRESOURCES(0xffffffffffffffff, 0xc04064a0, &(0x7f0000000100)={&(0x7f0000000000), &(0x7f0000000040)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], &(0x7f0000000080)=[0x0, 0x0], &(0x7f00000000c0)=[0x0], 0x0, 0x9, 0x2, 0x1}) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:50 executing program 5: socket(0x2, 0xa, 0x0) 17:53:51 executing program 0: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) (async) sendmsg$FOU_CMD_DEL(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x48, 0x0, 0x200, 0x70bd2a, 0x25dfdbfb, {}, [@FOU_ATTR_IPPROTO={0x5, 0x3, 0x73}, @FOU_ATTR_IPPROTO={0x5, 0x3, 0xbf016ef762c35039}, @FOU_ATTR_IFINDEX={0x8}, @FOU_ATTR_AF={0x5, 0x2, 0xa}, @FOU_ATTR_PEER_V6={0x14, 0x9, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000000}, 0x24008800) ioctl$DRM_IOCTL_CONTROL(0xffffffffffffffff, 0x40086414, &(0x7f0000000000)={0x3, 0xffffff70}) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000100)=ANY=[@ANYBLOB="0000a252a120eea521c27a540f383dce65693152b917730edad9df295b00002200000000000000", @ANYRES32=0xffffffffffffffff, @ANYRES32, @ANYBLOB='\x00\x00\x00\x00./file0\x00']) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(r0, 0xc0189373, &(0x7f0000000240)={{0x1, 0x1, 0x18, r0, {0x1}}, './file0\x00'}) ioctl$DRM_IOCTL_RES_CTX(r1, 0xc0106426, &(0x7f00000000c0)={0x8, &(0x7f0000000080)=[{}, {}, {}, {}, {}, {}, {}, {}]}) (async, rerun: 64) ioctl$SNDCTL_DSP_SETTRIGGER(r0, 0x40045010, &(0x7f00000002c0)=0x8000) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:51 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000040)={&(0x7f0000000280)={0x60, 0x0, 0x300, 0x70bd2a, 0x25ffdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000000000000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x816e}]}, 0x60}, 0x1, 0x0, 0x0, 0x4040045}, 0x40010) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 1: socket(0x0, 0xa, 0x0) [ 1121.008922] nbd: must specify a device to reconfigure 17:53:51 executing program 5: socket(0x2, 0xa, 0x0) 17:53:51 executing program 2: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) r1 = syz_open_dev$dri(&(0x7f0000000000), 0x5, 0x300) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(r0, 0xc018937c, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1, {0x4}}, './file0\x00'}) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r2, 0xc018937a, &(0x7f0000000080)={{0x1, 0x1, 0x18, r0, {0x8001}}, './file0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x14}, 0x14}}, 0x0) 17:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x28, r2, 0x300, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4e0a}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000041}, 0x40000) (async, rerun: 32) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) (async) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000200)={&(0x7f00000002c0)={0xac, r3, 0x420, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6a8}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x49d}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xac}, 0x1, 0x0, 0x0, 0x180}, 0x24044805) (async) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 0: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) (async) sendmsg$FOU_CMD_DEL(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x48, 0x0, 0x200, 0x70bd2a, 0x25dfdbfb, {}, [@FOU_ATTR_IPPROTO={0x5, 0x3, 0x73}, @FOU_ATTR_IPPROTO={0x5, 0x3, 0xbf016ef762c35039}, @FOU_ATTR_IFINDEX={0x8}, @FOU_ATTR_AF={0x5, 0x2, 0xa}, @FOU_ATTR_PEER_V6={0x14, 0x9, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000000}, 0x24008800) ioctl$DRM_IOCTL_CONTROL(0xffffffffffffffff, 0x40086414, &(0x7f0000000000)={0x3, 0xffffff70}) (async) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000100)=ANY=[@ANYBLOB="0000a252a120eea521c27a540f383dce65693152b917730edad9df295b00002200000000000000", @ANYRES32=0xffffffffffffffff, @ANYRES32, @ANYBLOB='\x00\x00\x00\x00./file0\x00']) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(r0, 0xc0189373, &(0x7f0000000240)={{0x1, 0x1, 0x18, r0, {0x1}}, './file0\x00'}) ioctl$DRM_IOCTL_RES_CTX(r1, 0xc0106426, &(0x7f00000000c0)={0x8, &(0x7f0000000080)=[{}, {}, {}, {}, {}, {}, {}, {}]}) (async) ioctl$SNDCTL_DSP_SETTRIGGER(r0, 0x40045010, &(0x7f00000002c0)=0x8000) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:51 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000040)={&(0x7f0000000280)={0x60, 0x0, 0x300, 0x70bd2a, 0x25ffdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000000000000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x12a}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x816e}]}, 0x60}, 0x1, 0x0, 0x0, 0x4040045}, 0x40010) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 5: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) sendmsg$FOU_CMD_DEL(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x48, 0x0, 0x200, 0x70bd2a, 0x25dfdbfb, {}, [@FOU_ATTR_IPPROTO={0x5, 0x3, 0x73}, @FOU_ATTR_IPPROTO={0x5, 0x3, 0xbf016ef762c35039}, @FOU_ATTR_IFINDEX={0x8}, @FOU_ATTR_AF={0x5, 0x2, 0xa}, @FOU_ATTR_PEER_V6={0x14, 0x9, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000000}, 0x24008800) ioctl$DRM_IOCTL_CONTROL(0xffffffffffffffff, 0x40086414, &(0x7f0000000000)={0x3, 0xffffff70}) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000100)=ANY=[@ANYBLOB="0000a252a120eea521c27a540f383dce65693152b917730edad9df295b00002200000000000000", @ANYRES32=0xffffffffffffffff, @ANYRES32, @ANYBLOB='\x00\x00\x00\x00./file0\x00']) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(r0, 0xc0189373, &(0x7f0000000240)={{0x1, 0x1, 0x18, r0, {0x1}}, './file0\x00'}) ioctl$DRM_IOCTL_RES_CTX(r1, 0xc0106426, &(0x7f00000000c0)={0x8, &(0x7f0000000080)=[{}, {}, {}, {}, {}, {}, {}, {}]}) ioctl$SNDCTL_DSP_SETTRIGGER(r0, 0x40045010, &(0x7f00000002c0)=0x8000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:51 executing program 1: socket(0x2, 0x0, 0x0) 17:53:51 executing program 2: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) r1 = syz_open_dev$dri(&(0x7f0000000000), 0x5, 0x300) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(r0, 0xc018937c, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1, {0x4}}, './file0\x00'}) (async) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r2, 0xc018937a, &(0x7f0000000080)={{0x1, 0x1, 0x18, r0, {0x8001}}, './file0\x00'}) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x14}, 0x14}}, 0x0) 17:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r2 = socket$phonet_pipe(0x23, 0x5, 0x2) r3 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000140), 0x80, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(r1, 0xc0189378, &(0x7f0000000180)={{0x1, 0x1, 0x18, r2, {r3}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0xc0}, 0x4040820) 17:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r3) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000001c0)={0x84, r1, 0x20, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x84}, 0x1, 0x0, 0x0, 0x80}, 0x188d1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x9c, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3ff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xb8f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7ff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff00000000}]}, 0x9c}}, 0x4) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f0000000100)=ANY=[@ANYBLOB="83f4ab7e5dce8a26", @ANYRES16=r4, @ANYBLOB="01000000000000000000030000000c00040000000000000000000c0006000000000000000000"], 0x2c}}, 0x0) r5 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0), 0x141042, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r6, 0xc0189375, &(0x7f0000000200)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r6, @ANYBLOB="e8ffffffffffffff2e2f66696c653000"]) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(r6, 0xc0189374, &(0x7f00000002c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000140)={&(0x7f0000000300)={0x88, r4, 0x601, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '\\a*(]#+:+:'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}]}, 0x88}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 2: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) (async, rerun: 64) r1 = syz_open_dev$dri(&(0x7f0000000000), 0x5, 0x300) (rerun: 64) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(r0, 0xc018937c, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1, {0x4}}, './file0\x00'}) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r2, 0xc018937a, &(0x7f0000000080)={{0x1, 0x1, 0x18, r0, {0x8001}}, './file0\x00'}) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x14}, 0x14}}, 0x0) 17:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r2 = socket$phonet_pipe(0x23, 0x5, 0x2) r3 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000140), 0x80, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(r1, 0xc0189378, &(0x7f0000000180)={{0x1, 0x1, 0x18, r2, {r3}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0xc0}, 0x4040820) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000100)={{0x1, 0x1, 0x18}, './file0\x00'}) (async) socket$phonet_pipe(0x23, 0x5, 0x2) (async) openat$autofs(0xffffffffffffff9c, &(0x7f0000000140), 0x80, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(r1, 0xc0189378, &(0x7f0000000180)={{0x1, 0x1, 0x18, r2, {r3}}, './file0\x00'}) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0xc0}, 0x4040820) (async) 17:53:51 executing program 1: socket(0x2, 0x0, 0x0) 17:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r3) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000001c0)={0x84, r1, 0x20, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x84}, 0x1, 0x0, 0x0, 0x80}, 0x188d1) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000001c0)={0x84, r1, 0x20, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x84}, 0x1, 0x0, 0x0, 0x80}, 0x188d1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x9c, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3ff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xb8f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7ff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff00000000}]}, 0x9c}}, 0x4) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r3) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000001c0)={0x84, r1, 0x20, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x84}, 0x1, 0x0, 0x0, 0x80}, 0x188d1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r3) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000001c0)={0x84, r1, 0x20, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x84}, 0x1, 0x0, 0x0, 0x80}, 0x188d1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:51 executing program 1: socket(0x2, 0x0, 0x0) 17:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x9c, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3ff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xb8f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7ff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff00000000}]}, 0x9c}}, 0x4) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x9c, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3ff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xb8f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7ff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff00000000}]}, 0x9c}}, 0x4) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r2 = socket$phonet_pipe(0x23, 0x5, 0x2) r3 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000140), 0x80, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(r1, 0xc0189378, &(0x7f0000000180)={{0x1, 0x1, 0x18, r2, {r3}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0xc0}, 0x4040820) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000100)={{0x1, 0x1, 0x18}, './file0\x00'}) (async) socket$phonet_pipe(0x23, 0x5, 0x2) (async) openat$autofs(0xffffffffffffff9c, &(0x7f0000000140), 0x80, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(r1, 0xc0189378, &(0x7f0000000180)={{0x1, 0x1, 0x18, r2, {r3}}, './file0\x00'}) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0xc0}, 0x4040820) (async) 17:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_STATUS_ACCEL_DEV(0xffffffffffffffff, 0x40046103, &(0x7f0000000040)={0x1, 0x3f, 0x99f2, 0x0, 0x7f, 0x40, 0x90, 0x1f, 0x5, 0x3, 0x5, "1f215a4fce7055f93e28a1a214e12a6cf0f0e5f98415057ae18a76f4a9bfc64e"}) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$IOCTL_GET_NUM_DEVICES(r1, 0x40046104, &(0x7f0000000140)) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3, 0x4}}, './file0/file0\x00'}) r4 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x6, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r4) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r1, 0xc0189375, &(0x7f0000000180)={{0x1, 0x1, 0x18, r4}, './file0/file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="2b00000081934b6fc8860e56c7fb399a2f44e8d5027c0b2c7e9b59ca533a1ae7931737dd56be755cc9d6d84fecaf015cd35ecd4f972ab6ed9539ee601490863dfb1a62fc398403aa1c84f9d064cd2d023ffcecf134d0723d46d0798413090e3ca9ecc7773fc3747b93fa5ed1dfb1e86dd02c708dc7cc79649929dd8572d26db3", @ANYRES16=r2, @ANYBLOB="01000000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r3) 17:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="d6003627dfad324cb20f00000000000000", @ANYRES16=0x0, @ANYBLOB="00002dbd700000000000020000000800010000000000"], 0x1c}}, 0x0) bpf$PROG_BIND_MAP(0x23, &(0x7f0000000000), 0xc) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) bpf$PROG_BIND_MAP(0x23, &(0x7f0000000040)={r1}, 0xc) 17:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket(0x2, 0xa, 0xffff) 17:53:51 executing program 4: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="036b8d8c8b168bd26dcf8f1ff2c7c549d13dd265d04471e367d0cb9985768516febbc845195cb59a3e25f75bc8cc04be8f7262a51171d0bbb9e0080000000012f300d35875bf85fe4fc5d7570e129642ed26c9b113faa0a479f4f48f17470ca14ce77c139e112790a13d7160d4c9a42ee8c715d5c27f32fa1135feb5aa4aeb89a6750083275abbeb6e3d2e9846a19630b0dcab28d2cbdf00b946def12fb0e59f4a596980f1c4c29f065a020f793b2130f2b0475e86e5af56f82e640c34fcf35a9894d9756565de015bdb1cf0614f0599bfbd7aeef1fee4c8bb5a1df1241688b3d1b76250cc0c1ddece0970ff354fa9740daaac9e6a31e41811d999acd3fd2a50978d6b61033616acfd9e528d69b7d2f6f5d71f7232cde129082fdb2cde", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) 17:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=0x0, @ANYBLOB="0460958a6f1c9f00ea2d32a2ca490080720000ffffffa2e6fc303ebf2c1d1c3a19a7a5770f23f27c758a6cb4b6de7898c298f2a432d615659d83a3aad918d6d11f67a774d4f28cdf524ff2533057ecb355528404f4"], 0x1c}, 0x1, 0x0, 0x0, 0x20008011}, 0x0) 17:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000200)={&(0x7f0000000040)={0x1c, r1, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24044000}, 0x4008000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14002000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) 17:53:51 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_STATUS_ACCEL_DEV(0xffffffffffffffff, 0x40046103, &(0x7f0000000040)={0x1, 0x3f, 0x99f2, 0x0, 0x7f, 0x40, 0x90, 0x1f, 0x5, 0x3, 0x5, "1f215a4fce7055f93e28a1a214e12a6cf0f0e5f98415057ae18a76f4a9bfc64e"}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$IOCTL_GET_NUM_DEVICES(r1, 0x40046104, &(0x7f0000000140)) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3, 0x4}}, './file0/file0\x00'}) r4 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x6, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r4) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r1, 0xc0189375, &(0x7f0000000180)={{0x1, 0x1, 0x18, r4}, './file0/file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="2b00000081934b6fc8860e56c7fb399a2f44e8d5027c0b2c7e9b59ca533a1ae7931737dd56be755cc9d6d84fecaf015cd35ecd4f972ab6ed9539ee601490863dfb1a62fc398403aa1c84f9d064cd2d023ffcecf134d0723d46d0798413090e3ca9ecc7773fc3747b93fa5ed1dfb1e86dd02c708dc7cc79649929dd8572d26db3", @ANYRES16=r2, @ANYBLOB="01000000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r3) 17:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_STATUS_ACCEL_DEV(0xffffffffffffffff, 0x40046103, &(0x7f0000000040)={0x1, 0x3f, 0x99f2, 0x0, 0x7f, 0x40, 0x90, 0x1f, 0x5, 0x3, 0x5, "1f215a4fce7055f93e28a1a214e12a6cf0f0e5f98415057ae18a76f4a9bfc64e"}) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$IOCTL_GET_NUM_DEVICES(r1, 0x40046104, &(0x7f0000000140)) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3, 0x4}}, './file0/file0\x00'}) r4 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x6, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r4) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r1, 0xc0189375, &(0x7f0000000180)={{0x1, 0x1, 0x18, r4}, './file0/file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="2b00000081934b6fc8860e56c7fb399a2f44e8d5027c0b2c7e9b59ca533a1ae7931737dd56be755cc9d6d84fecaf015cd35ecd4f972ab6ed9539ee601490863dfb1a62fc398403aa1c84f9d064cd2d023ffcecf134d0723d46d0798413090e3ca9ecc7773fc3747b93fa5ed1dfb1e86dd02c708dc7cc79649929dd8572d26db3", @ANYRES16=r2, @ANYBLOB="01000000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r3) 17:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:52 executing program 4: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) (async) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) 17:53:52 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) 17:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(0xffffffffffffffff, 0xc018937a, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x7}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x28, r2, 0x2, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}]}, 0x28}, 0x1, 0x0, 0x0, 0xc0}, 0x20000084) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000080)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000200)={&(0x7f0000000140)={0xa0, r2, 0x200, 0x946, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffb}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xa99}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffff7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0xa0}, 0x1, 0x0, 0x0, 0x20000840}, 0x84) 17:53:52 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=0x0, @ANYBLOB="0460958a6f1c9f00ea2d32a2ca490080720000ffffffa2e6fc303ebf2c1d1c3a19a7a5770f23f27c758a6cb4b6de7898c298f2a432d615659d83a3aad918d6d11f67a774d4f28cdf524ff2533057ecb355528404f4"], 0x1c}, 0x1, 0x0, 0x0, 0x20008011}, 0x0) 17:53:52 executing program 5: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) 17:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_STATUS_ACCEL_DEV(0xffffffffffffffff, 0x40046103, &(0x7f0000000040)={0x1, 0x3f, 0x99f2, 0x0, 0x7f, 0x40, 0x90, 0x1f, 0x5, 0x3, 0x5, "1f215a4fce7055f93e28a1a214e12a6cf0f0e5f98415057ae18a76f4a9bfc64e"}) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) ioctl$IOCTL_GET_NUM_DEVICES(r1, 0x40046104, &(0x7f0000000140)) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3, 0x4}}, './file0/file0\x00'}) r4 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x6, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r4) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r1, 0xc0189375, &(0x7f0000000180)={{0x1, 0x1, 0x18, r4}, './file0/file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="2b00000081934b6fc8860e56c7fb399a2f44e8d5027c0b2c7e9b59ca533a1ae7931737dd56be755cc9d6d84fecaf015cd35ecd4f972ab6ed9539ee601490863dfb1a62fc398403aa1c84f9d064cd2d023ffcecf134d0723d46d0798413090e3ca9ecc7773fc3747b93fa5ed1dfb1e86dd02c708dc7cc79649929dd8572d26db3", @ANYRES16=r2, @ANYBLOB="01000000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r3) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$IOCTL_STATUS_ACCEL_DEV(0xffffffffffffffff, 0x40046103, &(0x7f0000000040)={0x1, 0x3f, 0x99f2, 0x0, 0x7f, 0x40, 0x90, 0x1f, 0x5, 0x3, 0x5, "1f215a4fce7055f93e28a1a214e12a6cf0f0e5f98415057ae18a76f4a9bfc64e"}) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) ioctl$IOCTL_GET_NUM_DEVICES(r1, 0x40046104, &(0x7f0000000140)) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3, 0x4}}, './file0/file0\x00'}) (async) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x6, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) (async) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r4) (async) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(r1, 0xc0189375, &(0x7f0000000180)={{0x1, 0x1, 0x18, r4}, './file0/file0\x00'}) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="2b00000081934b6fc8860e56c7fb399a2f44e8d5027c0b2c7e9b59ca533a1ae7931737dd56be755cc9d6d84fecaf015cd35ecd4f972ab6ed9539ee601490863dfb1a62fc398403aa1c84f9d064cd2d023ffcecf134d0723d46d0798413090e3ca9ecc7773fc3747b93fa5ed1dfb1e86dd02c708dc7cc79649929dd8572d26db3", @ANYRES16=r2, @ANYBLOB="01000000000800010000000000"], 0x1c}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r3) (async) 17:53:52 executing program 4: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) (async) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) 17:53:52 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) [ 1122.203169] nbd: must specify a device to reconfigure 17:53:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(0xffffffffffffffff, 0xc018937a, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x7}}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(0xffffffffffffffff, 0xc018937a, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x7}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x28, r2, 0x2, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}]}, 0x28}, 0x1, 0x0, 0x0, 0xc0}, 0x20000084) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000080)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000200)={&(0x7f0000000140)={0xa0, r2, 0x200, 0x946, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffb}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xa99}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffff7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0xa0}, 0x1, 0x0, 0x0, 0x20000840}, 0x84) 17:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=0x0, @ANYBLOB="0460958a6f1c9f00ea2d32a2ca490080720000ffffffa2e6fc303ebf2c1d1c3a19a7a5770f23f27c758a6cb4b6de7898c298f2a432d615659d83a3aad918d6d11f67a774d4f28cdf524ff2533057ecb355528404f4"], 0x1c}, 0x1, 0x0, 0x0, 0x20008011}, 0x0) 17:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x34, 0x0, 0x2, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000001}, 0x24000000) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) 17:53:52 executing program 5: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) 17:53:52 executing program 4: ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3}}, './file0\x00'}) getsockopt$PNPIPE_INITSTATE(r0, 0x113, 0x4, &(0x7f0000000040), &(0x7f00000000c0)=0x4) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000100)=ANY=[@ANYBLOB="ae1c0000001dda665a16947161c7e8d33bcc9db3241432344d08334fb7fde3f1ae37ce610586bbaa520dd8686df4b5e938dbff6142c2f81e151d53cd751b", @ANYRES16=r2, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:52 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) 17:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x34, 0x0, 0x2, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000001}, 0x24000000) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) [ 1122.422632] nbd: must specify a device to reconfigure 17:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(0xffffffffffffffff, 0xc018937a, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x7}}, './file0\x00'}) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x28, r2, 0x2, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}]}, 0x28}, 0x1, 0x0, 0x0, 0xc0}, 0x20000084) (async) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000080)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) (async, rerun: 32) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) (rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000200)={&(0x7f0000000140)={0xa0, r2, 0x200, 0x946, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffb}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xa99}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffff7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0xa0}, 0x1, 0x0, 0x0, 0x20000840}, 0x84) 17:53:52 executing program 4: ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3}}, './file0\x00'}) getsockopt$PNPIPE_INITSTATE(r0, 0x113, 0x4, &(0x7f0000000040), &(0x7f00000000c0)=0x4) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000100)=ANY=[@ANYBLOB="ae1c0000001dda665a16947161c7e8d33bcc9db3241432344d08334fb7fde3f1ae37ce610586bbaa520dd8686df4b5e938dbff6142c2f81e151d53cd751b", @ANYRES16=r2, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:52 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x880, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfd1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4}, 0x40180b1) 17:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x34, 0x0, 0x2, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000001}, 0x24000000) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) 17:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="c0000000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000808010000000000"], 0x1c}}, 0x0) [ 1122.593250] nbd: must specify a device to reconfigure 17:53:52 executing program 4: ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3}}, './file0\x00'}) getsockopt$PNPIPE_INITSTATE(r0, 0x113, 0x4, &(0x7f0000000040), &(0x7f00000000c0)=0x4) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000100)=ANY=[@ANYBLOB="ae1c0000001dda665a16947161c7e8d33bcc9db3241432344d08334fb7fde3f1ae37ce610586bbaa520dd8686df4b5e938dbff6142c2f81e151d53cd751b", @ANYRES16=r2, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:52 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) 17:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x64, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '+^%2:'}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '!{#'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}]}]}, 0x64}, 0x1, 0x0, 0x0, 0x40000}, 0x810) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\t\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000c000800f7ffffffffffffff"], 0x20}}, 0x0) r8 = accept$phonet_pipe(r7, &(0x7f0000000340), &(0x7f0000000380)=0x10) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r6, 0xc018937b, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r7, {0x0, 0xee01}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r7, 0xc018937b, &(0x7f0000000400)={{0x1, 0x1, 0x18, r7, {0xffffffffffffffff, 0xee01}}, './file0\x00'}) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000300), 0x22d0804, &(0x7f0000000540)={'trans=fd,', {'rfdno', 0x3d, r7}, 0x2c, {'wfdno', 0x3d, r8}, 0x2c, {[{@cache_loose}, {@access_user}, {@version_9p2000}], [{@obj_role={'obj_role', 0x3d, '!{#'}}, {@smackfsfloor={'smackfsfloor', 0x3d, 'nbd\x00'}}, {@fsname}, {@fowner_lt={'fowner<', r9}}, {@flag='async'}, {@fowner_eq={'fowner', 0x3d, 0xee01}}, {@euid_eq={'euid', 0x3d, r10}}, {@smackfstransmute={'smackfstransmute', 0x3d, 'nbd\x00'}}]}}) 17:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="c0000000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000808010000000000"], 0x1c}}, 0x0) 17:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) 17:53:52 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) 17:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x4004000) [ 1122.823276] nbd: must specify a device to reconfigure 17:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="c0000000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000808010000000000"], 0x1c}}, 0x0) 17:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async, rerun: 32) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (rerun: 32) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x64, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '+^%2:'}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '!{#'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}]}]}, 0x64}, 0x1, 0x0, 0x0, 0x40000}, 0x810) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\t\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000c000800f7ffffffffffffff"], 0x20}}, 0x0) (async) r8 = accept$phonet_pipe(r7, &(0x7f0000000340), &(0x7f0000000380)=0x10) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r6, 0xc018937b, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r7, {0x0, 0xee01}}, './file0\x00'}) (async, rerun: 64) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r7, 0xc018937b, &(0x7f0000000400)={{0x1, 0x1, 0x18, r7, {0xffffffffffffffff, 0xee01}}, './file0\x00'}) (rerun: 64) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000300), 0x22d0804, &(0x7f0000000540)={'trans=fd,', {'rfdno', 0x3d, r7}, 0x2c, {'wfdno', 0x3d, r8}, 0x2c, {[{@cache_loose}, {@access_user}, {@version_9p2000}], [{@obj_role={'obj_role', 0x3d, '!{#'}}, {@smackfsfloor={'smackfsfloor', 0x3d, 'nbd\x00'}}, {@fsname}, {@fowner_lt={'fowner<', r9}}, {@flag='async'}, {@fowner_eq={'fowner', 0x3d, 0xee01}}, {@euid_eq={'euid', 0x3d, r10}}, {@smackfstransmute={'smackfstransmute', 0x3d, 'nbd\x00'}}]}}) 17:53:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x4004000) 17:53:52 executing program 5: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) 17:53:53 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:53 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x4004000) 17:53:53 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:53 executing program 0: r0 = bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff, 0x13}, 0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f00000005c0)=ANY=[@ANYBLOB="711cc8c9050043c9f9c1a4eb4d4d7b5f9211dd77a94c68ffa8032a0432944e89be3d5137399d08f4d50f6f5227f8bbcee34996b32a10910997dfa42f72507392db5141e63c70ba9463", @ANYRES32=r0, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00./file0\x00']) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000180)={r1, r1, 0x0, r1}, 0x10) bpf$LINK_DETACH(0x22, &(0x7f00000002c0)=r1, 0x4) getsockopt$PNPIPE_ENCAP(r1, 0x113, 0x1, &(0x7f0000000080), &(0x7f00000000c0)=0x4) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000100)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r0, @ANYBLOB="81000000070000002e2f66b55a0cef"]) r3 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r3) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000340)={r1, r3, 0x4, r1}, 0x10) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r2, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r0, {0x0, 0xee00}}, './file0\x00'}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x64880000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00012bbd70a6a995a206c17b5783c3ef00fddbdf25020000000c"], 0x20}, 0x1, 0x0, 0x0, 0x4020000}, 0x4) setsockopt$PNPIPE_INITSTATE(r1, 0x113, 0x4, &(0x7f0000000300), 0x4) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$SNDCTL_DSP_NONBLOCK(r6, 0x500e, 0x0) socket$phonet_pipe(0x23, 0x5, 0x2) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) getsockopt$PNPIPE_HANDLE(r4, 0x113, 0x3, &(0x7f0000000540), &(0x7f0000000580)=0x4) 17:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x64, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '+^%2:'}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '!{#'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}]}]}, 0x64}, 0x1, 0x0, 0x0, 0x40000}, 0x810) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB=' \x00\t\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000c000800f7ffffffffffffff"], 0x20}}, 0x0) (async) r8 = accept$phonet_pipe(r7, &(0x7f0000000340), &(0x7f0000000380)=0x10) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r6, 0xc018937b, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r7, {0x0, 0xee01}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r7, 0xc018937b, &(0x7f0000000400)={{0x1, 0x1, 0x18, r7, {0xffffffffffffffff, 0xee01}}, './file0\x00'}) mount$9p_fd(0x0, &(0x7f00000002c0)='./file0\x00', &(0x7f0000000300), 0x22d0804, &(0x7f0000000540)={'trans=fd,', {'rfdno', 0x3d, r7}, 0x2c, {'wfdno', 0x3d, r8}, 0x2c, {[{@cache_loose}, {@access_user}, {@version_9p2000}], [{@obj_role={'obj_role', 0x3d, '!{#'}}, {@smackfsfloor={'smackfsfloor', 0x3d, 'nbd\x00'}}, {@fsname}, {@fowner_lt={'fowner<', r9}}, {@flag='async'}, {@fowner_eq={'fowner', 0x3d, 0xee01}}, {@euid_eq={'euid', 0x3d, r10}}, {@smackfstransmute={'smackfstransmute', 0x3d, 'nbd\x00'}}]}}) 17:53:53 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r2, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) 17:53:53 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)={0xffffff83, r1, 0x1, 0x70bd2a, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20040811}, 0x0) 17:53:53 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) 17:53:53 executing program 0: r0 = bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff, 0x13}, 0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f00000005c0)=ANY=[@ANYBLOB="711cc8c9050043c9f9c1a4eb4d4d7b5f9211dd77a94c68ffa8032a0432944e89be3d5137399d08f4d50f6f5227f8bbcee34996b32a10910997dfa42f72507392db5141e63c70ba9463", @ANYRES32=r0, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00./file0\x00']) (async) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000180)={r1, r1, 0x0, r1}, 0x10) (async) bpf$LINK_DETACH(0x22, &(0x7f00000002c0)=r1, 0x4) getsockopt$PNPIPE_ENCAP(r1, 0x113, 0x1, &(0x7f0000000080), &(0x7f00000000c0)=0x4) (async) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000100)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r0, @ANYBLOB="81000000070000002e2f66b55a0cef"]) r3 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r3) (async) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000340)={r1, r3, 0x4, r1}, 0x10) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r2, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r0, {0x0, 0xee00}}, './file0\x00'}) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x64880000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00012bbd70a6a995a206c17b5783c3ef00fddbdf25020000000c"], 0x20}, 0x1, 0x0, 0x0, 0x4020000}, 0x4) (async) setsockopt$PNPIPE_INITSTATE(r1, 0x113, 0x4, &(0x7f0000000300), 0x4) (async) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_NONBLOCK(r6, 0x500e, 0x0) socket$phonet_pipe(0x23, 0x5, 0x2) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) getsockopt$PNPIPE_HANDLE(r4, 0x113, 0x3, &(0x7f0000000540), &(0x7f0000000580)=0x4) 17:53:53 executing program 4: getpid() ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000140)={0x0}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDCTL_DSP_SYNC(0xffffffffffffffff, 0x5001, 0x0) r4 = getpid() r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000540)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x68, r2, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f00000001c0)=r4, 0x12) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r9, 0xc0182101, &(0x7f0000000580)={r0, 0x1f, 0x4}) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000800"], 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) r10 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$FOU_CMD_DEL(r10, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x34, 0x0, 0x300, 0x70bd25, 0x25dfdbfc, {}, [@FOU_ATTR_PORT={0x6, 0x1, 0x4e21}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e20}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e22}]}, 0x34}, 0x1, 0x0, 0x0, 0x8050}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r8) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="000700000000ce34924040e712e0f87810d38a44776402d1214dee5598e4d2951a1313a726ef512c777873ccf0654afff7e785d483c68cca5d88ce7bd656303d9602b7a98d1c7e297e23f1c673605b2347b4fec52c2cbffb36339e38829fb3016ffe031a3ebc2be2e70cedfbfdfc"], 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 17:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (rerun: 64) 17:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)={0xffffff83, r1, 0x1, 0x70bd2a, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20040811}, 0x0) 17:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)={0xffffff83, r1, 0x1, 0x70bd2a, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20040811}, 0x0) 17:53:53 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) 17:53:53 executing program 4: getpid() (async) getpid() ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000140)={0x0}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDCTL_DSP_SYNC(0xffffffffffffffff, 0x5001, 0x0) r4 = getpid() syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000540)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x68, r2, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f00000001c0)=r4, 0x12) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r9, 0xc0182101, &(0x7f0000000580)={r0, 0x1f, 0x4}) (async) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r9, 0xc0182101, &(0x7f0000000580)={r0, 0x1f, 0x4}) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000800"], 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) socket$nl_generic(0x10, 0x3, 0x10) (async) r10 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$FOU_CMD_DEL(r10, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x34, 0x0, 0x300, 0x70bd25, 0x25dfdbfc, {}, [@FOU_ATTR_PORT={0x6, 0x1, 0x4e21}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e20}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e22}]}, 0x34}, 0x1, 0x0, 0x0, 0x8050}, 0x0) (async) sendmsg$FOU_CMD_DEL(r10, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x34, 0x0, 0x300, 0x70bd25, 0x25dfdbfc, {}, [@FOU_ATTR_PORT={0x6, 0x1, 0x4e21}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e20}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e22}]}, 0x34}, 0x1, 0x0, 0x0, 0x8050}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r8) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r8) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="000700000000ce34924040e712e0f87810d38a44776402d1214dee5598e4d2951a1313a726ef512c777873ccf0654afff7e785d483c68cca5d88ce7bd656303d9602b7a98d1c7e297e23f1c673605b2347b4fec52c2cbffb36339e38829fb3016ffe031a3ebc2be2e70cedfbfdfc"], 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 17:53:53 executing program 0: r0 = bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff, 0x13}, 0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f00000005c0)=ANY=[@ANYBLOB="711cc8c9050043c9f9c1a4eb4d4d7b5f9211dd77a94c68ffa8032a0432944e89be3d5137399d08f4d50f6f5227f8bbcee34996b32a10910997dfa42f72507392db5141e63c70ba9463", @ANYRES32=r0, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00./file0\x00']) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000180)={r1, r1, 0x0, r1}, 0x10) bpf$LINK_DETACH(0x22, &(0x7f00000002c0)=r1, 0x4) getsockopt$PNPIPE_ENCAP(r1, 0x113, 0x1, &(0x7f0000000080), &(0x7f00000000c0)=0x4) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000100)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r0, @ANYBLOB="81000000070000002e2f66b55a0cef"]) r3 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r3) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000340)={r1, r3, 0x4, r1}, 0x10) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r2, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r0, {0x0, 0xee00}}, './file0\x00'}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x64880000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00012bbd70a6a995a206c17b5783c3ef00fddbdf25020000000c"], 0x20}, 0x1, 0x0, 0x0, 0x4020000}, 0x4) setsockopt$PNPIPE_INITSTATE(r1, 0x113, 0x4, &(0x7f0000000300), 0x4) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$SNDCTL_DSP_NONBLOCK(r6, 0x500e, 0x0) socket$phonet_pipe(0x23, 0x5, 0x2) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) getsockopt$PNPIPE_HANDLE(r4, 0x113, 0x3, &(0x7f0000000540), &(0x7f0000000580)=0x4) bpf$BPF_LINK_CREATE(0x1c, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff, 0x13}, 0x10) (async) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f00000005c0)=ANY=[@ANYBLOB="711cc8c9050043c9f9c1a4eb4d4d7b5f9211dd77a94c68ffa8032a0432944e89be3d5137399d08f4d50f6f5227f8bbcee34996b32a10910997dfa42f72507392db5141e63c70ba9463", @ANYRES32=r0, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00./file0\x00']) (async) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000180)={r1, r1, 0x0, r1}, 0x10) (async) bpf$LINK_DETACH(0x22, &(0x7f00000002c0)=r1, 0x4) (async) getsockopt$PNPIPE_ENCAP(r1, 0x113, 0x1, &(0x7f0000000080), &(0x7f00000000c0)=0x4) (async) ioctl$AUTOFS_DEV_IOCTL_FAIL(r1, 0xc0189377, &(0x7f0000000100)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r0, @ANYBLOB="81000000070000002e2f66b55a0cef"]) (async) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) (async) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r3) (async) bpf$BPF_LINK_UPDATE(0x1d, &(0x7f0000000340)={r1, r3, 0x4, r1}, 0x10) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r2, 0xc018937b, &(0x7f0000000140)={{0x1, 0x1, 0x18, r0, {0x0, 0xee00}}, './file0\x00'}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x64880000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00012bbd70a6a995a206c17b5783c3ef00fddbdf25020000000c"], 0x20}, 0x1, 0x0, 0x0, 0x4020000}, 0x4) (async) setsockopt$PNPIPE_INITSTATE(r1, 0x113, 0x4, &(0x7f0000000300), 0x4) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_NONBLOCK(r6, 0x500e, 0x0) (async) socket$phonet_pipe(0x23, 0x5, 0x2) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) getsockopt$PNPIPE_HANDLE(r4, 0x113, 0x3, &(0x7f0000000540), &(0x7f0000000580)=0x4) (async) 17:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)={0xffffff83, r1, 0x1, 0x70bd2a, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20040811}, 0x0) 17:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)={0xffffff83, r1, 0x1, 0x70bd2a, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20040811}, 0x0) 17:53:53 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x24008080) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r2, 0x880, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '++]'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x10040080}, 0x4000000) 17:53:53 executing program 4: getpid() (async) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000140)={0x0}) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDCTL_DSP_SYNC(0xffffffffffffffff, 0x5001, 0x0) r4 = getpid() r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000540)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x68, r2, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) write$cgroup_pid(0xffffffffffffffff, &(0x7f00000001c0)=r4, 0x12) (async, rerun: 64) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) (async) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r9, 0xc0182101, &(0x7f0000000580)={r0, 0x1f, 0x4}) (async) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000800"], 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x0) r10 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$FOU_CMD_DEL(r10, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x34, 0x0, 0x300, 0x70bd25, 0x25dfdbfc, {}, [@FOU_ATTR_PORT={0x6, 0x1, 0x4e21}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e20}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e22}]}, 0x34}, 0x1, 0x0, 0x0, 0x8050}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r8) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="000700000000ce34924040e712e0f87810d38a44776402d1214dee5598e4d2951a1313a726ef512c777873ccf0654afff7e785d483c68cca5d88ce7bd656303d9602b7a98d1c7e297e23f1c673605b2347b4fec52c2cbffb36339e38829fb3016ffe031a3ebc2be2e70cedfbfdfc"], 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) (rerun: 32) 17:53:53 executing program 0: write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(0xffffffffffffffff, &(0x7f0000000040)={0x10, 0x30, 0xfa00, {&(0x7f0000000000), 0x2, {0xa, 0x4e21, 0x8000, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x7fff}}}, 0x38) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)={0xffffff83, r1, 0x1, 0x70bd2a, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20040811}, 0x0) 17:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x20000, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x24008080) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r2, 0x880, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '++]'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x10040080}, 0x4000000) [ 1123.815858] nbd: must specify a device to reconfigure 17:53:53 executing program 0: write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(0xffffffffffffffff, &(0x7f0000000040)={0x10, 0x30, 0xfa00, {&(0x7f0000000000), 0x2, {0xa, 0x4e21, 0x8000, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x7fff}}}, 0x38) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:53 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x20000, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, r4, 0x1, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x2000c000}, 0x860) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x38, r1, 0x300, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}]}, 0x38}, 0x1, 0x0, 0x0, 0x8004}, 0x5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r7, 0x200}, 0x14}}, 0x0) 17:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x24008080) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r2, 0x880, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '++]'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x10040080}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x24008080) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, r2, 0x880, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '++]'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x10040080}, 0x4000000) (async) 17:53:54 executing program 0: write$RDMA_USER_CM_CMD_JOIN_IP_MCAST(0xffffffffffffffff, &(0x7f0000000040)={0x10, 0x30, 0xfa00, {&(0x7f0000000000), 0x2, {0xa, 0x4e21, 0x8000, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x7fff}}}, 0x38) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1123.991745] nbd: must specify a device to reconfigure 17:53:54 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) 17:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x20000, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1124.113426] nbd: must specify a device to reconfigure 17:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1124.138822] nbd: must specify at least one socket [ 1124.172949] nbd: must specify a device to reconfigure 17:53:54 executing program 0: r0 = syz_genetlink_get_family_id$wireguard(&(0x7f0000000040), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000180)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5, 0x1f}}, './file0\x00'}) sendmsg$WG_CMD_SET_DEVICE(r1, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r0, 0x400, 0x70bd2a, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x800) socket$nl_generic(0x10, 0x3, 0x10) sendmsg$WG_CMD_GET_DEVICE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x4c, r0, 0x400, 0x70bd27, 0x2, {}, [@WGDEVICE_A_IFNAME={0x14, 0x2, 'wg2\x00'}, @WGDEVICE_A_PRIVATE_KEY={0x24}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40801}, 0x20000880) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000540)={0x6, 0x4, &(0x7f0000000300)=@framed={{0x18, 0x0, 0x0, 0x0, 0xbcac}, [@ldst={0x3, 0x2, 0x1, 0x1, 0x1, 0xfffffffffffffffc, 0x1}]}, &(0x7f0000000340)='syzkaller\x00', 0x6, 0x59, &(0x7f0000000380)=""/89, 0x41100, 0x7, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f0000000400)={0x7, 0x4}, 0x8, 0x10, &(0x7f0000000440)={0x4, 0x7, 0x8001, 0x9}, 0x10}, 0x80) setsockopt$sock_attach_bpf(r1, 0x1, 0x32, &(0x7f00000005c0)=r3, 0x4) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r1, 0xc018937a, &(0x7f0000000600)={{0x1, 0x1, 0x18, r3, {0x2}}, './file0\x00'}) setsockopt$PNPIPE_INITSTATE(r4, 0x113, 0x4, &(0x7f0000000640), 0x4) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, r4, 0x1, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x2000c000}, 0x860) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x38, r1, 0x300, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}]}, 0x38}, 0x1, 0x0, 0x0, 0x8004}, 0x5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r7, 0x200}, 0x14}}, 0x0) 17:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x710}}, './file0\x00'}) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000140), 0x8) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000280)={&(0x7f0000000180)={0xcc, r1, 0x200, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2386}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x20}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffff23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0xcc}}, 0x10) [ 1124.210719] nbd: must specify a device to reconfigure [ 1124.224466] nbd: must specify a device to reconfigure 17:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) bpf$LINK_DETACH(0x22, &(0x7f0000000140)=r2, 0x4) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x6c, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0x6c}, 0x1, 0x0, 0x0, 0x54}, 0x4800) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:54 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) 17:53:54 executing program 0: r0 = syz_genetlink_get_family_id$wireguard(&(0x7f0000000040), 0xffffffffffffffff) (async) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000180)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5, 0x1f}}, './file0\x00'}) sendmsg$WG_CMD_SET_DEVICE(r1, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r0, 0x400, 0x70bd2a, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x800) (async, rerun: 64) socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) sendmsg$WG_CMD_GET_DEVICE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x4c, r0, 0x400, 0x70bd27, 0x2, {}, [@WGDEVICE_A_IFNAME={0x14, 0x2, 'wg2\x00'}, @WGDEVICE_A_PRIVATE_KEY={0x24}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40801}, 0x20000880) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000540)={0x6, 0x4, &(0x7f0000000300)=@framed={{0x18, 0x0, 0x0, 0x0, 0xbcac}, [@ldst={0x3, 0x2, 0x1, 0x1, 0x1, 0xfffffffffffffffc, 0x1}]}, &(0x7f0000000340)='syzkaller\x00', 0x6, 0x59, &(0x7f0000000380)=""/89, 0x41100, 0x7, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f0000000400)={0x7, 0x4}, 0x8, 0x10, &(0x7f0000000440)={0x4, 0x7, 0x8001, 0x9}, 0x10}, 0x80) setsockopt$sock_attach_bpf(r1, 0x1, 0x32, &(0x7f00000005c0)=r3, 0x4) (async) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r1, 0xc018937a, &(0x7f0000000600)={{0x1, 0x1, 0x18, r3, {0x2}}, './file0\x00'}) setsockopt$PNPIPE_INITSTATE(r4, 0x113, 0x4, &(0x7f0000000640), 0x4) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:54 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, 0xffffffffffffffff) 17:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) (async) bpf$LINK_DETACH(0x22, &(0x7f0000000140)=r2, 0x4) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x6c, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0x6c}, 0x1, 0x0, 0x0, 0x54}, 0x4800) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x710}}, './file0\x00'}) (async) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000140), 0x8) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000280)={&(0x7f0000000180)={0xcc, r1, 0x200, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2386}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x20}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffff23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0xcc}}, 0x10) [ 1124.439294] nbd: must specify a device to reconfigure [ 1124.453993] nbd: must specify at least one socket 17:53:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, r4, 0x1, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x2000c000}, 0x860) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x38, r1, 0x300, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}]}, 0x38}, 0x1, 0x0, 0x0, 0x8004}, 0x5) (async, rerun: 64) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000340)={&(0x7f00000002c0)={0x14, r7, 0x200}, 0x14}}, 0x0) (rerun: 32) 17:53:54 executing program 0: r0 = syz_genetlink_get_family_id$wireguard(&(0x7f0000000040), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000180)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5, 0x1f}}, './file0\x00'}) sendmsg$WG_CMD_SET_DEVICE(r1, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r0, 0x400, 0x70bd2a, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x800) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$WG_CMD_GET_DEVICE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x4c, r0, 0x400, 0x70bd27, 0x2, {}, [@WGDEVICE_A_IFNAME={0x14, 0x2, 'wg2\x00'}, @WGDEVICE_A_PRIVATE_KEY={0x24}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40801}, 0x20000880) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000540)={0x6, 0x4, &(0x7f0000000300)=@framed={{0x18, 0x0, 0x0, 0x0, 0xbcac}, [@ldst={0x3, 0x2, 0x1, 0x1, 0x1, 0xfffffffffffffffc, 0x1}]}, &(0x7f0000000340)='syzkaller\x00', 0x6, 0x59, &(0x7f0000000380)=""/89, 0x41100, 0x7, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f0000000400)={0x7, 0x4}, 0x8, 0x10, &(0x7f0000000440)={0x4, 0x7, 0x8001, 0x9}, 0x10}, 0x80) setsockopt$sock_attach_bpf(r1, 0x1, 0x32, &(0x7f00000005c0)=r3, 0x4) (async) ioctl$AUTOFS_DEV_IOCTL_TIMEOUT(r1, 0xc018937a, &(0x7f0000000600)={{0x1, 0x1, 0x18, r3, {0x2}}, './file0\x00'}) setsockopt$PNPIPE_INITSTATE(r4, 0x113, 0x4, &(0x7f0000000640), 0x4) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1124.505375] nbd: must specify a device to reconfigure [ 1124.510837] nbd: must specify a device to reconfigure 17:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) bpf$LINK_DETACH(0x22, &(0x7f0000000140)=r2, 0x4) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x6c, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0x6c}, 0x1, 0x0, 0x0, 0x54}, 0x4800) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:54 executing program 1: syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, 0xffffffffffffffff) 17:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x710}}, './file0\x00'}) r7 = bpf$ITER_CREATE(0x21, &(0x7f0000000140), 0x8) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000280)={&(0x7f0000000180)={0xcc, r1, 0x200, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2386}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x20}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffff23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0xcc}}, 0x10) [ 1124.658099] nbd: must specify at least one socket 17:53:54 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="cb080000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) r1 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x640, 0x0) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(r1, 0xc0189379, &(0x7f0000000080)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32, @ANYBLOB="0000000000000000000066696c6530007f99ff042e714c1045262b2e3ed4e70e97b866c9e59d5444e4d2c97d72f351849e31e470ed2b8a833b62525d7fc90a9037cbd8aa46723376c54f23ac9b90343532b936336d0e"]) 17:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:54 executing program 1: write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x4}, 0xc) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(0xfffffffffffffffe, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f0000000540)=ANY=[@ANYBLOB="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", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x100, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}]}, 0x20}}, 0x0) 17:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:54 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="cb080000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) (async, rerun: 32) r1 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x640, 0x0) (rerun: 32) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(r1, 0xc0189379, &(0x7f0000000080)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32, @ANYBLOB="0000000000000000000066696c6530007f99ff042e714c1045262b2e3ed4e70e97b866c9e59d5444e4d2c97d72f351849e31e470ed2b8a833b62525d7fc90a9037cbd8aa46723376c54f23ac9b90343532b936336d0e"]) 17:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r7 = accept$phonet_pipe(0xffffffffffffffff, &(0x7f0000000300), &(0x7f0000000340)=0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000380)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r7, @ANYBLOB="00000000000000002e2f66696c658a0f"]) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r6, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x4}, 0x4011) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r4, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000001f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r7 = accept$phonet_pipe(0xffffffffffffffff, &(0x7f0000000300), &(0x7f0000000340)=0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000380)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r7, @ANYBLOB="00000000000000002e2f66696c658a0f"]) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r6, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x4}, 0x4011) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r4, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000001f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="cb080000", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) (async) r1 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x640, 0x0) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(r1, 0xc0189379, &(0x7f0000000080)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32, @ANYBLOB="0000000000000000000066696c6530007f99ff042e714c1045262b2e3ed4e70e97b866c9e59d5444e4d2c97d72f351849e31e470ed2b8a833b62525d7fc90a9037cbd8aa46723376c54f23ac9b90343532b936336d0e"]) [ 1124.994624] nbd: must specify an index to disconnect 17:53:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}]}, 0x20}}, 0x0) 17:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1125.065934] nbd: must specify a device to reconfigure 17:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r7 = accept$phonet_pipe(0xffffffffffffffff, &(0x7f0000000300), &(0x7f0000000340)=0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000380)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r7, @ANYBLOB="00000000000000002e2f66696c658a0f"]) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r6, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x4}, 0x4011) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r4, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000001f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1125.109038] nbd: must specify a device to reconfigure 17:53:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}]}, 0x20}}, 0x0) 17:53:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r5) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r7 = accept$phonet_pipe(0xffffffffffffffff, &(0x7f0000000300), &(0x7f0000000340)=0x10) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000380)=ANY=[@ANYBLOB="010000000100000018000000", @ANYRES32=r7, @ANYBLOB="00000000000000002e2f66696c658a0f"]) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x20, r6, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x4}, 0x4011) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r4, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000001f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="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"/294], 0x1c}}, 0x0) 17:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1125.241229] nbd: must specify a device to reconfigure 17:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x48, r5, 0x400, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe065}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '#:'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}]}, 0x48}, 0x1, 0x0, 0x0, 0xe8b5330041847e4d}, 0x0) 17:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) [ 1125.310357] nbd: must specify an index to disconnect 17:53:55 executing program 4: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="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"/294], 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="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"/294], 0x1c}}, 0x0) 17:53:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c61a24315cc004af12c8ebdc41865121ad0e578a729926c7ae5da7db84c4eb9277da19bddc393b17d27f5425c4dbf6a37594dcfbd8f93e149cf33fd01fb9a5e48385de9b265ea259e660000000000", @ANYRES16=0x0, @ANYBLOB="000400000000ffdbdf25020000000800010000000000"], 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x400, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x64}, 0x1, 0x0, 0x0, 0x24000800}, 0x2400c085) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r5) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r4, 0x300, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '@{\\/*'}]}, 0x20}, 0x1, 0x0, 0x0, 0x4001}, 0x0) [ 1125.339637] nbd: must specify a device to reconfigure 17:53:55 executing program 5: syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x48, r5, 0x400, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe065}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '#:'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}]}, 0x48}, 0x1, 0x0, 0x0, 0xe8b5330041847e4d}, 0x0) [ 1125.421757] nbd: must specify a device to reconfigure 17:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c61a24315cc004af12c8ebdc41865121ad0e578a729926c7ae5da7db84c4eb9277da19bddc393b17d27f5425c4dbf6a37594dcfbd8f93e149cf33fd01fb9a5e48385de9b265ea259e660000000000", @ANYRES16=0x0, @ANYBLOB="000400000000ffdbdf25020000000800010000000000"], 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x400, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x64}, 0x1, 0x0, 0x0, 0x24000800}, 0x2400c085) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r5) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r4, 0x300, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '@{\\/*'}]}, 0x20}, 0x1, 0x0, 0x0, 0x4001}, 0x0) 17:53:55 executing program 4: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) (async) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="0f000000", @ANYRES16=0x0, @ANYBLOB="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"/294], 0x1c}}, 0x0) 17:53:55 executing program 5: syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:55 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT(0xffffffffffffffff, 0xc0189374, &(0x7f0000000680)={{0x1, 0x1, 0x18, r1, {0x100}}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_open_dev$evdev(&(0x7f0000000600), 0x62cdef9c, 0x721000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000640), r4) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="59ad13ce", @ANYRES16=r5, @ANYBLOB="000429bd7000fbdbdf250100000005000a00000000000c000400ff7f0000000000000c00040002000000000000000c00050005000000000000001400078008000100", @ANYRES32, @ANYBLOB, @ANYRES32=r6, @ANYBLOB], 0x54}, 0x1, 0x0, 0x0, 0x24000010}, 0x4000000) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f00000005c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x5c, 0x0, 0x4, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x99}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x4080) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) write$RDMA_USER_CM_CMD_LISTEN(r9, &(0x7f0000000200)={0x7, 0x8, 0xfa00, {0xffffffffffffffff, 0x9}}, 0x10) r10 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r10) getuid() r11 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r11) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x4851}, 0x0) 17:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x48, r5, 0x400, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe065}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '#:'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}]}, 0x48}, 0x1, 0x0, 0x0, 0xe8b5330041847e4d}, 0x0) 17:53:55 executing program 4: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) (async, rerun: 64) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) (rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 0: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, r0, {0x2}}, './file0\x00'}) ioctl$DRM_IOCTL_PRIME_FD_TO_HANDLE(r0, 0xc00c642e, &(0x7f0000000200)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(r1, 0xc00c642d, &(0x7f0000000240)={r2}) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) ioctl$SNDCTL_DSP_GETTRIGGER(r0, 0x80045010, &(0x7f0000000100)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f00000002c0)={{0x1, 0x1, 0x18, r0, {0x112}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x1, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff01}]}, 0x20}}, 0x0) ioctl$IOCTL_VMCI_DATAGRAM_RECEIVE(r0, 0x7ac, &(0x7f0000000180)={&(0x7f0000000540)={{@my=0x0, 0x81}, {@any, 0x3}, 0x400, "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"}, 0x418}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000140)={0x20, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3f}]}, 0x20}}, 0x0) 17:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100"/22], 0x1c}}, 0x0) 17:53:55 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 5: syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:55 executing program 0: openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, r0, {0x2}}, './file0\x00'}) ioctl$DRM_IOCTL_PRIME_FD_TO_HANDLE(r0, 0xc00c642e, &(0x7f0000000200)={0x0, 0x0, r0}) (async) ioctl$DRM_IOCTL_PRIME_FD_TO_HANDLE(r0, 0xc00c642e, &(0x7f0000000200)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(r1, 0xc00c642d, &(0x7f0000000240)={r2}) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) ioctl$SNDCTL_DSP_GETTRIGGER(r0, 0x80045010, &(0x7f0000000100)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f00000002c0)={{0x1, 0x1, 0x18, r0, {0x112}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x1, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff01}]}, 0x20}}, 0x0) ioctl$IOCTL_VMCI_DATAGRAM_RECEIVE(r0, 0x7ac, &(0x7f0000000180)={&(0x7f0000000540)={{@my=0x0, 0x81}, {@any, 0x3}, 0x400, "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"}, 0x418}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000140)={0x20, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3f}]}, 0x20}}, 0x0) 17:53:55 executing program 4: r0 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x381000) openat$qat_adf_ctl(0xffffffffffffff9c, &(0x7f0000000140), 0x4100, 0x0) ioctl$NBD_SET_SOCK(r0, 0xab00, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)={0x58, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}}, 0x4004) 17:53:55 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xc0, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f0000000080)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x6}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x74, r1, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x74}, 0x1, 0x0, 0x0, 0x9090}, 0x4800) 17:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:55 executing program 0: openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, r0, {0x2}}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, r0, {0x2}}, './file0\x00'}) ioctl$DRM_IOCTL_PRIME_FD_TO_HANDLE(r0, 0xc00c642e, &(0x7f0000000200)={0x0, 0x0, r0}) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(r1, 0xc00c642d, &(0x7f0000000240)={r2}) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) ioctl$SNDCTL_DSP_GETTRIGGER(r0, 0x80045010, &(0x7f0000000100)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f00000002c0)={{0x1, 0x1, 0x18, r0, {0x112}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x1, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff01}]}, 0x20}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x1, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff01}]}, 0x20}}, 0x0) ioctl$IOCTL_VMCI_DATAGRAM_RECEIVE(r0, 0x7ac, &(0x7f0000000180)={&(0x7f0000000540)={{@my=0x0, 0x81}, {@any, 0x3}, 0x400, "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"}, 0x418}) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000140)={0x20, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3f}]}, 0x20}}, 0x0) 17:53:55 executing program 4: r0 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x381000) openat$qat_adf_ctl(0xffffffffffffff9c, &(0x7f0000000140), 0x4100, 0x0) (async) ioctl$NBD_SET_SOCK(r0, 0xab00, 0xffffffffffffffff) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)={0x58, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}}, 0x4004) 17:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100"/22], 0x1c}}, 0x0) 17:53:55 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:55 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100"/22], 0x1c}}, 0x0) 17:53:56 executing program 4: r0 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x381000) openat$qat_adf_ctl(0xffffffffffffff9c, &(0x7f0000000140), 0x4100, 0x0) ioctl$NBD_SET_SOCK(r0, 0xab00, 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)={0x58, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}}, 0x4004) syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x381000) (async) openat$qat_adf_ctl(0xffffffffffffff9c, &(0x7f0000000140), 0x4100, 0x0) (async) ioctl$NBD_SET_SOCK(r0, 0xab00, 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)={0x58, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}}, 0x4004) (async) 17:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100"/22], 0x1c}}, 0x0) 17:53:56 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '@--'}]}, 0x1c}}, 0x0) 17:53:56 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:56 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '@--'}]}, 0x1c}}, 0x0) 17:53:56 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x84, r1, 0x10, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x66}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040000) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) 17:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r3, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x40000}, 0x800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000440)=ANY=[@ANYRESHEX=r5, @ANYRES16=r5, @ANYBLOB="00030001000000000000020000000c000500020100000000000005000a0023000000b3269db2d601e810fadd732605b6d79c813e21b1f10b29f6a1b6d5637530155ac9bbcb18c924d11931cb52e95dfe10ba6316a660ca17fa14d1861656e34e42682a824f1e719c7aaa"], 0x28}}, 0x40800) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r8) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r9) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x64, r10, 0x2, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x70502308}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x64}, 0x1, 0x0, 0x0, 0x4004}, 0x800) 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '@--'}]}, 0x1c}}, 0x0) 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) r5 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r7, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r5, {0x2}}, './file0\x00'}) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) 17:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) (async) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async, rerun: 32) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) (async, rerun: 32) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x84, r1, 0x10, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x66}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040000) (rerun: 32) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)={0x54, 0x0, 0x300, 0x70bd32, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, ',+:-%'}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x40080}, 0x0) 17:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x68}, 0x1, 0x0, 0x0, 0x4048010}, 0x20000800) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x54, r2, 0x20, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x40000}, 0x4008065) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r5) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000003c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000400), 0x101, 0x0) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000440)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x7, 0x9f}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000600)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x7c, r7, 0x300, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffffffffffff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8111bb5}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8, 0x1, r10}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x11}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000002}, 0x80) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:56 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) [ 1126.185054] nbd: must specify a device to reconfigure 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)={0x54, 0x0, 0x300, 0x70bd32, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, ',+:-%'}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x40080}, 0x0) 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) socket(0x2, 0xa, 0xffff) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r8, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r8, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r6, {0x2}}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r5, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r7, 0xc018937e, &(0x7f0000000680)={{0x1, 0x1, 0x18, r4, {0x4}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) [ 1126.233676] nbd: must specify a device to reconfigure 17:53:56 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r2, 0x5001, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CATATONIC(0xffffffffffffffff, 0xc0189379, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x84, r1, 0x10, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x66}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040000) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:56 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r3, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x40000}, 0x800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000440)=ANY=[@ANYRESHEX=r5, @ANYRES16=r5, @ANYBLOB="00030001000000000000020000000c000500020100000000000005000a0023000000b3269db2d601e810fadd732605b6d79c813e21b1f10b29f6a1b6d5637530155ac9bbcb18c924d11931cb52e95dfe10ba6316a660ca17fa14d1861656e34e42682a824f1e719c7aaa"], 0x28}}, 0x40800) (async) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000440)=ANY=[@ANYRESHEX=r5, @ANYRES16=r5, @ANYBLOB="00030001000000000000020000000c000500020100000000000005000a0023000000b3269db2d601e810fadd732605b6d79c813e21b1f10b29f6a1b6d5637530155ac9bbcb18c924d11931cb52e95dfe10ba6316a660ca17fa14d1861656e34e42682a824f1e719c7aaa"], 0x28}}, 0x40800) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r8) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r8) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r9) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x64, r10, 0x2, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x70502308}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x64}, 0x1, 0x0, 0x0, 0x4004}, 0x800) [ 1126.264969] nbd: must specify a device to reconfigure 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r1, 0x5001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)={0x54, 0x0, 0x300, 0x70bd32, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, ',+:-%'}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x40080}, 0x0) 17:53:56 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18, r1}, './file0\x00'}) 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r3, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x40000}, 0x800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000440)=ANY=[@ANYRESHEX=r5, @ANYRES16=r5, @ANYBLOB="00030001000000000000020000000c000500020100000000000005000a0023000000b3269db2d601e810fadd732605b6d79c813e21b1f10b29f6a1b6d5637530155ac9bbcb18c924d11931cb52e95dfe10ba6316a660ca17fa14d1861656e34e42682a824f1e719c7aaa"], 0x28}}, 0x40800) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r8) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r9) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x64, r10, 0x2, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x70502308}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x64}, 0x1, 0x0, 0x0, 0x4004}, 0x800) 17:53:56 executing program 5: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) r1 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(r1, 0xc018937c, 0x0) sendmsg$FOU_CMD_ADD(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x48, 0x0, 0x8, 0x70bd2b, 0x25dfdbfe, {}, [@FOU_ATTR_PEER_V6={0x14, 0x9, @empty}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e22}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_IFINDEX={0x8}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e21}]}, 0x48}, 0x1, 0x0, 0x0, 0x20000000}, 0x8040) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000002c0)=ANY=[@ANYBLOB="090000000477489c00147c6b0692ba21650000", @ANYRES16=r1, @ANYBLOB="010000000000000000000200000008000100000000002f9d9f2d5b0c554eba0dd3c85a2847d33788976ba4f75cc189abe54ef246186c2758984d23b30e99ab"], 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) mmap$dsp(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000000, 0x2010, r3, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000100)={{0x1, 0x1, 0x18, r3, {0xffffffffffffffff, 0xffffffffffffffff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000340)={{0x1, 0x1, 0x18, r3, {r4}}, './file0/file0\x00'}) r5 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f0000000240)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x68, r1, 0x800, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xb213}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x800}, 0x4000001) 17:53:56 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x40000, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=0x0, @ANYBLOB="000000000000000000000200000008000100000000003d37c978981efdbfcc162dc47921dc07e4a67029a194fa0b89ca70868f771cbd00000000ccb49e0e2fecb459d7cc2bcd3f7dbdcefc014439e793bf869f1dbc8867ec0a9b08d9f8def005b51b84765b6dbeb9774df5cb3405d8791803eb"], 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x40801) [ 1126.350427] nbd: must specify a device to reconfigure [ 1126.380658] nbd: must specify a device to reconfigure 17:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) r4 = socket(0x2, 0xa, 0xffff) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r7 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r7, 0x5001, 0x0) r8 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ASKUMOUNT(r10, 0xc018937d, &(0x7f00000003c0)={{0x1, 0x1, 0x18, r8, {0x2}}, './file0\x00'}) r12 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r12, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(r7, 0xc0189372, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r3, 0xc018937e, &(0x7f0000000540)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) r15 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r15, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(r9, 0xc018937e, &(0x7f0000000680)={{0x1, 0x1, 0x18, r5, {0x4}}, './file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000380)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000340)={&(0x7f00000007c0)={0x12c, r1, 0x20, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x62}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r11}, {0x8}, {0x8, 0x1, r8}, {0xfffffffffffffe84, 0x1, r12}, {0x8, 0x1, r13}, {0x8, 0x1, r4}, {0x8, 0x1, r14}, {0x8, 0x1, r15}, {0x8, 0x1, r16}]}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0x0, 0x6, 0x3}]}, 0x12c}, 0x1, 0x0, 0x0, 0x4008040}, 0x20000000) 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=0x0, @ANYBLOB="000000000000000000000200000008000100000000003d37c978981efdbfcc162dc47921dc07e4a67029a194fa0b89ca70868f771cbd00000000ccb49e0e2fecb459d7cc2bcd3f7dbdcefc014439e793bf869f1dbc8867ec0a9b08d9f8def005b51b84765b6dbeb9774df5cb3405d8791803eb"], 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x40801) [ 1126.412720] nbd: must specify a device to reconfigure [ 1126.432644] nbd: must specify a device to reconfigure 17:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000002c0)=ANY=[@ANYBLOB="090000000477489c00147c6b0692ba21650000", @ANYRES16=r1, @ANYBLOB="010000000000000000000200000008000100000000002f9d9f2d5b0c554eba0dd3c85a2847d33788976ba4f75cc189abe54ef246186c2758984d23b30e99ab"], 0x1c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) mmap$dsp(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000000, 0x2010, r3, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000100)={{0x1, 0x1, 0x18, r3, {0xffffffffffffffff, 0xffffffffffffffff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000340)={{0x1, 0x1, 0x18, r3, {r4}}, './file0/file0\x00'}) (async, rerun: 64) r5 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) (async, rerun: 64) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async, rerun: 64) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f0000000240)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x68, r1, 0x800, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xb213}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x800}, 0x4000001) 17:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r3, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x40000}, 0x800) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000380)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r3, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x40000}, 0x800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000440)=ANY=[@ANYRESHEX=r5, @ANYRES16=r5, @ANYBLOB="00030001000000000000020000000c000500020100000000000005000a0023000000b3269db2d601e810fadd732605b6d79c813e21b1f10b29f6a1b6d5637530155ac9bbcb18c924d11931cb52e95dfe10ba6316a660ca17fa14d1861656e34e42682a824f1e719c7aaa"], 0x28}}, 0x40800) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r8) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r9) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x64, r10, 0x2, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x70502308}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x64}, 0x1, 0x0, 0x0, 0x4004}, 0x800) [ 1126.466403] nbd: must specify a device to reconfigure 17:53:56 executing program 2: ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=0x0, @ANYBLOB="000000000000000000000200000008000100000000003d37c978981efdbfcc162dc47921dc07e4a67029a194fa0b89ca70868f771cbd00000000ccb49e0e2fecb459d7cc2bcd3f7dbdcefc014439e793bf869f1dbc8867ec0a9b08d9f8def005b51b84765b6dbeb9774df5cb3405d8791803eb"], 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x40801) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=0x0, @ANYBLOB="000000000000000000000200000008000100000000003d37c978981efdbfcc162dc47921dc07e4a67029a194fa0b89ca70868f771cbd00000000ccb49e0e2fecb459d7cc2bcd3f7dbdcefc014439e793bf869f1dbc8867ec0a9b08d9f8def005b51b84765b6dbeb9774df5cb3405d8791803eb"], 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x40801) (async) 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x64, r3, 0x100, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '#'}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x21b}]}, 0x64}, 0x1, 0x0, 0x0, 0x760e5d4261387819}, 0x4000844) [ 1126.498309] nbd: must specify a device to reconfigure 17:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000002c0)=ANY=[@ANYBLOB="090000000477489c00147c6b0692ba21650000", @ANYRES16=r1, @ANYBLOB="010000000000000000000200000008000100000000002f9d9f2d5b0c554eba0dd3c85a2847d33788976ba4f75cc189abe54ef246186c2758984d23b30e99ab"], 0x1c}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) mmap$dsp(&(0x7f0000ffe000/0x2000)=nil, 0x2000, 0x2000000, 0x2010, r3, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000100)={{0x1, 0x1, 0x18, r3, {0xffffffffffffffff, 0xffffffffffffffff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(r3, 0xc018937b, &(0x7f0000000340)={{0x1, 0x1, 0x18, r3, {r4}}, './file0/file0\x00'}) (async) r5 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) (async) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f0000000240)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x68, r1, 0x800, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xb213}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x800}, 0x4000001) 17:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000140), 0xfffffffffffffd55, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0xd0) 17:53:56 executing program 2: ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) [ 1126.571479] nbd: must specify a device to reconfigure 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r1 = syz_genetlink_get_family_id$fou(&(0x7f0000000040), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$FOU_CMD_DEL(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, r1, 0x400, 0x70bd2b, 0x25dfdbfd, {}, [@FOU_ATTR_PEER_V6={0x14, 0x9, @local}, @FOU_ATTR_REMCSUM_NOPARTIAL={0x4}, @FOU_ATTR_IFINDEX={0x8}, @FOU_ATTR_LOCAL_V4={0x8, 0x6, @private=0xa010101}, @FOU_ATTR_REMCSUM_NOPARTIAL={0x4}, @FOU_ATTR_LOCAL_V4={0x8, 0x6, @local}]}, 0x48}, 0x1, 0x0, 0x0, 0x4028000}, 0x0) 17:53:56 executing program 0: sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="a77c359da9fbd7a2ef235f017fcffce45601c7ce33a8504066c2017d6e96bc8b438e329cc9642a23af1894842641fe292879", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) inotify_init() 17:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:56 executing program 2: ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x30, r1, 0x200, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x30}, 0x1, 0x0, 0x0, 0x8004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xa, r1, 0x200}, 0x1c}}, 0x0) 17:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x2c, r4, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffd8f2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x1}, 0x40010) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1f}}, './file0\x00'}) write$RDMA_USER_CM_CMD_DISCONNECT(r5, &(0x7f0000000040)={0xa, 0x4}, 0xc) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1126.625365] nbd: must specify a device to reconfigure [ 1126.630843] nbd: must specify a device to reconfigure [ 1126.648517] nbd: must specify a device to reconfigure 17:53:56 executing program 0: sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="a77c359da9fbd7a2ef235f017fcffce45601c7ce33a8504066c2017d6e96bc8b438e329cc9642a23af1894842641fe292879", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) inotify_init() (async) inotify_init() 17:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000140), 0xfffffffffffffd55, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0xd0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x34, r2, 0x400, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xe80000000}]}, 0x34}, 0x1, 0x0, 0x0, 0x8080}, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r0) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000300)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x6, 0x8}}, './file0\x00'}) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:56 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, 0x0, 0x40000, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000140), 0xfffffffffffffd55, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0xd0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x34, r2, 0x400, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xe80000000}]}, 0x34}, 0x1, 0x0, 0x0, 0x8080}, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r0) ioctl$AUTOFS_DEV_IOCTL_FAIL(0xffffffffffffffff, 0xc0189377, &(0x7f0000000300)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x6, 0x8}}, './file0\x00'}) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) 17:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x30, r1, 0x200, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x30}, 0x1, 0x0, 0x0, 0x8004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xa, r1, 0x200}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x30, r1, 0x200, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x30}, 0x1, 0x0, 0x0, 0x8004}, 0x4000) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xa, r1, 0x200}, 0x1c}}, 0x0) (async) 17:53:56 executing program 0: sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="a77c359da9fbd7a2ef235f017fcffce45601c7ce33a8504066c2017d6e96bc8b438e329cc9642a23af1894842641fe292879", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) inotify_init() sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="a77c359da9fbd7a2ef235f017fcffce45601c7ce33a8504066c2017d6e96bc8b438e329cc9642a23af1894842641fe292879", @ANYRES16=0x0, @ANYBLOB="00000000000000000000020000000800010000000000"], 0x1c}}, 0x0) (async) inotify_init() (async) 17:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x2c, r4, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffd8f2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x1}, 0x40010) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1f}}, './file0\x00'}) write$RDMA_USER_CM_CMD_DISCONNECT(r5, &(0x7f0000000040)={0xa, 0x4}, 0xc) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:56 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000540)=ANY=[@ANYRES64=r1, @ANYRES16=0x0, @ANYBLOB="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"], 0x1c}}, 0x48004) ioctl$AUTOFS_DEV_IOCTL_CLOSEMOUNT(0xffffffffffffffff, 0xc0189375, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) ioctl$SIOCPNENABLEPIPE(r2, 0x89ed, 0x0) 17:53:56 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, 0x0, 0x40000, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) 17:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x24}}, 0x4000000) 17:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x54, r1, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x54}, 0x1, 0x0, 0x0, 0x200000c0}, 0x10000800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r1, 0x10, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x40c4}, 0x4004000) 17:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x30, r1, 0x200, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x30}, 0x1, 0x0, 0x0, 0x8004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xa, r1, 0x200}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x30, r1, 0x200, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x30}, 0x1, 0x0, 0x0, 0x8004}, 0x4000) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xa, r1, 0x200}, 0x1c}}, 0x0) (async) 17:53:56 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, 0x0, 0x40000, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) 17:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x54, 0x0, 0x4, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '^#]:)&'}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}]}, 0x54}, 0x1, 0x0, 0x0, 0x40884}, 0x881) 17:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x2c, r4, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffd8f2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x1}, 0x40010) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000000)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1f}}, './file0\x00'}) write$RDMA_USER_CM_CMD_DISCONNECT(r5, &(0x7f0000000040)={0xa, 0x4}, 0xc) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:57 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) 17:53:57 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x54, r1, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x54}, 0x1, 0x0, 0x0, 0x200000c0}, 0x10000800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r1, 0x10, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x40c4}, 0x4004000) 17:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x4c, 0x0, 0x100, 0x184c414d, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xb}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '@^\xd3-\xdf\x9d'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000}]}, 0x4c}, 0x1, 0x0, 0x0, 0x400}, 0x8010) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_SYNCOBJ_CREATE(0xffffffffffffffff, 0xc00864bf, &(0x7f0000000000)) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)={0x34, 0x0, 0x28fc5e6387b35c34, 0x10000000, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000000000000001}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x805}, 0x20000000) 17:53:57 executing program 2: openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) [ 1127.035820] nbd: must specify a device to reconfigure 17:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x54, 0x0, 0x4, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '^#]:)&'}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}]}, 0x54}, 0x1, 0x0, 0x0, 0x40884}, 0x881) 17:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0xf9000081}, 0xc, &(0x7f0000000200)={&(0x7f00000002c0)={0x4c, r1, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x101}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x81}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4045) r4 = accept4$phonet_pipe(0xffffffffffffffff, &(0x7f0000000380), &(0x7f00000003c0)=0x10, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000440)={{0x1, 0x1, 0x18, r4, {r5}}, './file0\x00'}) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000d}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x2c, r7, 0x0, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x28}]}, 0x2c}, 0x1, 0x0, 0x0, 0x800}, 0x4004802) 17:53:57 executing program 1: r0 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r0, 0x5001, 0x0) ioctl$DRM_IOCTL_UNLOCK(r0, 0x4008642b, &(0x7f0000000340)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000100)={&(0x7f0000000000), 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x14, 0x0, 0x300, 0x70bd2d, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x44000}, 0x22000008) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20101002}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x6c, r7, 0x100, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xc, 0xa, '\'!@@\\(-$'}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4000021}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(0xffffffffffffffff, 0xc00c642d, &(0x7f00000002c0)={0x0, 0x0, 0xffffffffffffffff}) ioctl$DRM_IOCTL_MODE_PAGE_FLIP(r8, 0xc01864b0, &(0x7f0000000300)={0x80000000, 0x2, 0xb, 0x10000, 0x271}) 17:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x4c, 0x0, 0x100, 0x184c414d, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xb}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '@^\xd3-\xdf\x9d'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000}]}, 0x4c}, 0x1, 0x0, 0x0, 0x400}, 0x8010) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x4c, 0x0, 0x100, 0x184c414d, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xb}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '@^\xd3-\xdf\x9d'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000}]}, 0x4c}, 0x1, 0x0, 0x0, 0x400}, 0x8010) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0xf, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x54, r1, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x54}, 0x1, 0x0, 0x0, 0x200000c0}, 0x10000800) (async, rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r1, 0x10, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x40c4}, 0x4004000) (rerun: 64) 17:53:57 executing program 2: openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) [ 1127.137708] nbd: must specify a device to reconfigure [ 1127.168154] nbd: must specify a device to reconfigure 17:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_STATUS(r5, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x54, 0x0, 0x4, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '^#]:)&'}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}]}, 0x54}, 0x1, 0x0, 0x0, 0x40884}, 0x881) 17:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0xf9000081}, 0xc, &(0x7f0000000200)={&(0x7f00000002c0)={0x4c, r1, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x101}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x81}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4045) (async, rerun: 32) r4 = accept4$phonet_pipe(0xffffffffffffffff, &(0x7f0000000380), &(0x7f00000003c0)=0x10, 0x0) (rerun: 32) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000440)={{0x1, 0x1, 0x18, r4, {r5}}, './file0\x00'}) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000d}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x2c, r7, 0x0, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x28}]}, 0x2c}, 0x1, 0x0, 0x0, 0x800}, 0x4004802) [ 1127.195515] nbd: must specify a device to reconfigure 17:53:57 executing program 2: openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(0xffffffffffffffff, 0xc0189371, &(0x7f0000000040)={{0x1, 0x1, 0x18}, './file0\x00'}) 17:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x4c, 0x0, 0x100, 0x184c414d, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xb}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '@^\xd3-\xdf\x9d'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000}]}, 0x4c}, 0x1, 0x0, 0x0, 0x400}, 0x8010) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0xf9000081}, 0xc, &(0x7f0000000200)={&(0x7f00000002c0)={0x4c, r1, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x101}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x81}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4045) r4 = accept4$phonet_pipe(0xffffffffffffffff, &(0x7f0000000380), &(0x7f00000003c0)=0x10, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000440)={{0x1, 0x1, 0x18, r4, {r5}}, './file0\x00'}) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000d}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x2c, r7, 0x0, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x28}]}, 0x2c}, 0x1, 0x0, 0x0, 0x800}, 0x4004802) 17:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) [ 1127.233061] nbd: must specify a device to reconfigure 17:53:57 executing program 1: r0 = bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) r2 = getegid() mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x20, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x2c, {[{@cache_fscache}, {@noextend}, {@dfltgid={'dfltgid', 0x3d, r2}}, {@access_any}, {@access_uid={'access', 0x3d, 0xffffffffffffffff}}, {@access_client}], [{@smackfsfloor={'smackfsfloor', 0x3d, 'nbd\x00'}}, {@fsmagic={'fsmagic', 0x3d, 0x7}}, {@hash}, {@seclabel}, {@dont_appraise}, {@audit}, {@appraise_type}, {@fowner_eq}]}}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r4, @ANYBLOB="41000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:57 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, 0x0) [ 1127.301101] nbd: must specify a device to reconfigure 17:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0xf9000081}, 0xc, &(0x7f0000000200)={&(0x7f00000002c0)={0x4c, r1, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x101}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x81}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4045) r4 = accept4$phonet_pipe(0xffffffffffffffff, &(0x7f0000000380), &(0x7f00000003c0)=0x10, 0x0) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000400)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff, 0xee00}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000440)={{0x1, 0x1, 0x18, r4, {r5}}, './file0\x00'}) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000d}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x2c, r7, 0x0, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x28}]}, 0x2c}, 0x1, 0x0, 0x0, 0x800}, 0x4004802) (rerun: 32) 17:53:57 executing program 0: r0 = bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) r1 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r1) r2 = getegid() mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x20, &(0x7f0000000100)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x2c, {[{@cache_fscache}, {@noextend}, {@dfltgid={'dfltgid', 0x3d, r2}}, {@access_any}, {@access_uid={'access', 0x3d, 0xffffffffffffffff}}, {@access_client}], [{@smackfsfloor={'smackfsfloor', 0x3d, 'nbd\x00'}}, {@fsmagic={'fsmagic', 0x3d, 0x7}}, {@hash}, {@seclabel}, {@dont_appraise}, {@audit}, {@appraise_type}, {@fowner_eq}]}}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r4, @ANYBLOB="41000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) r4 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000040)={0x3, &(0x7f0000000000)=[{0x7, 0x6, 0xf8, 0x1}, {0xbca, 0x5, 0x3, 0x7}, {0x7fff, 0x6, 0xfe, 0x10001}]}) r5 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r5) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r4, 0x40182103, &(0x7f00000000c0)={0x0, 0x2, r5, 0x5, 0x80000}) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$NBD_SET_SOCK(r3, 0xab00, r6) 17:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) [ 1127.329081] nbd: must specify a device to reconfigure [ 1127.341966] nbd: must specify a device to reconfigure 17:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) 17:53:57 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, 0x0) 17:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) r4 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000040)={0x3, &(0x7f0000000000)=[{0x7, 0x6, 0xf8, 0x1}, {0xbca, 0x5, 0x3, 0x7}, {0x7fff, 0x6, 0xfe, 0x10001}]}) (async) r5 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r5) (async) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r4, 0x40182103, &(0x7f00000000c0)={0x0, 0x2, r5, 0x5, 0x80000}) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async, rerun: 32) ioctl$NBD_SET_SOCK(r3, 0xab00, r6) (rerun: 32) 17:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) 17:53:57 executing program 2: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$AUTOFS_DEV_IOCTL_VERSION(r0, 0xc0189371, 0x0) [ 1127.448956] nbd: must specify a device to reconfigure 17:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) 17:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) r4 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000040)={0x3, &(0x7f0000000000)=[{0x7, 0x6, 0xf8, 0x1}, {0xbca, 0x5, 0x3, 0x7}, {0x7fff, 0x6, 0xfe, 0x10001}]}) (async) r5 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x0, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x6}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r5) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r4, 0x40182103, &(0x7f00000000c0)={0x0, 0x2, r5, 0x5, 0x80000}) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$NBD_SET_SOCK(r3, 0xab00, r6) [ 1127.482075] nbd: must specify a device to reconfigure [ 1127.489426] nbd: must specify a device to reconfigure [ 1127.502580] nbd: must specify a device to reconfigure 17:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) [ 1127.529504] nbd: must specify a device to reconfigure [ 1127.548892] nbd: must specify a device to reconfigure [ 1127.571932] nbd: must specify a device to reconfigure [ 1127.580869] nbd: must specify a device to reconfigure [ 1127.590609] nbd: must specify a device to reconfigure [ 1127.602002] nbd: must specify a device to reconfigure [ 1127.622315] nbd: must specify a device to reconfigure [ 1127.640399] nbd: must specify a device to reconfigure [ 1127.646740] nbd: must specify a device to reconfigure [ 1127.657211] nbd: must specify a device to reconfigure [ 1127.662575] nbd: must specify a device to reconfigure [ 1127.678227] nbd: must specify a device to reconfigure [ 1127.683544] nbd: must specify a device to reconfigure [ 1127.690965] nbd: must specify a device to reconfigure [ 1127.699506] nbd: must specify a device to reconfigure [ 1127.706931] nbd: must specify a device to reconfigure [ 1127.732133] nbd: must specify a device to reconfigure [ 1127.739375] nbd: must specify a device to reconfigure [ 1127.764001] nbd: must specify a device to reconfigure [ 1127.776309] nbd: must specify a device to reconfigure [ 1127.785800] nbd: must specify a device to reconfigure [ 1127.791132] nbd: must specify a device to reconfigure [ 1127.797291] nbd: must specify a device to reconfigure [ 1127.802567] nbd: must specify a device to reconfigure [ 1127.808182] nbd: must specify a device to reconfigure [ 1127.813774] nbd: must specify a device to reconfigure [ 1127.819576] nbd: must specify a device to reconfigure [ 1127.825324] nbd: must specify a device to reconfigure [ 1127.830599] nbd: must specify a device to reconfigure 17:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000002c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) write$RDMA_USER_CM_CMD_JOIN_MCAST(r3, &(0x7f00000000c0)={0x16, 0x98, 0xfa00, {&(0x7f0000000000), 0x1, 0xffffffffffffffff, 0x30, 0x1, @in={0x2, 0x4e22, @empty}}}, 0xa0) 17:53:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) 17:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x38, r1, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x400, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x880c}, 0x20000055) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) 17:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) [ 1127.836186] nbd: must specify a device to reconfigure [ 1127.841643] nbd: must specify a device to reconfigure [ 1127.847699] nbd: must specify a device to reconfigure [ 1127.852970] nbd: must specify a device to reconfigure [ 1127.858605] nbd: must specify a device to reconfigure 17:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x38, r1, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x400, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x880c}, 0x20000055) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1127.910753] nbd: must specify a device to reconfigure [ 1127.928167] nbd: must specify a device to reconfigure [ 1127.938194] nbd: must specify a device to reconfigure 17:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000002c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) (async) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) write$RDMA_USER_CM_CMD_JOIN_MCAST(r3, &(0x7f00000000c0)={0x16, 0x98, 0xfa00, {&(0x7f0000000000), 0x1, 0xffffffffffffffff, 0x30, 0x1, @in={0x2, 0x4e22, @empty}}}, 0xa0) [ 1127.979943] nbd: must specify a device to reconfigure 17:53:58 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) 17:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) 17:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x38, r1, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x400, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x880c}, 0x20000055) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x38, r1, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r4, 0x400, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x880c}, 0x20000055) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) [ 1128.042404] nbd: must specify a device to reconfigure [ 1128.071222] nbd: must specify a device to reconfigure 17:53:58 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x50, r1, 0x200, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}]}, 0x50}, 0x1, 0x0, 0x0, 0x4008000}, 0x40000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r5 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r5, 0x5001, 0x0) r6 = syz_genetlink_get_family_id$wireguard(&(0x7f0000000400), 0xffffffffffffffff) sendmsg$WG_CMD_SET_DEVICE(r5, &(0x7f0000000540)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000500)={&(0x7f0000000440)={0x88, r6, 0x2, 0x70bd26, 0x25dfdbfc, {}, [@WGDEVICE_A_FWMARK={0x8, 0x7, 0x1}, @WGDEVICE_A_PRIVATE_KEY={0x24}, @WGDEVICE_A_FWMARK={0x8, 0x7, 0xffff0001}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg2\x00'}, @WGDEVICE_A_LISTEN_PORT={0x6, 0x6, 0x4e23}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @b}]}, 0x88}}, 0x2400888d) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x4c, r4, 0x300, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000005}, 0x4800) [ 1128.107265] nbd: must specify a device to reconfigure [ 1128.118628] nbd: must specify a device to reconfigure 17:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1128.153130] nbd: must specify a device to reconfigure 17:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) [ 1128.217664] nbd: must specify a device to reconfigure 17:53:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c0200008e10e5e0c1d0370518bb5cf331059bec6b8b7937f394d69d691910e45446238c9a4d752aa57f52270f8189d083411b87190ee7aeb7dd4a916cf128809162d335881d1a1abd53c12b216ec259006082009056c106b46b3355d7f47dc828c35a9a9f7d073acce3d39d2c11f7b4990ba1ab84f85b13155d9d752896b4a628cfc7d4047638ddb2d792d52014bd1f32db8b2a2085a05e25fc", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000002c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) write$RDMA_USER_CM_CMD_JOIN_MCAST(r3, &(0x7f00000000c0)={0x16, 0x98, 0xfa00, {&(0x7f0000000000), 0x1, 0xffffffffffffffff, 0x30, 0x1, @in={0x2, 0x4e22, @empty}}}, 0xa0) 17:53:58 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) 17:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) [ 1128.251211] nbd: must specify a device to reconfigure 17:53:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c0200008e10e5e0c1d0370518bb5cf331059bec6b8b7937f394d69d691910e45446238c9a4d752aa57f52270f8189d083411b87190ee7aeb7dd4a916cf128809162d335881d1a1abd53c12b216ec259006082009056c106b46b3355d7f47dc828c35a9a9f7d073acce3d39d2c11f7b4990ba1ab84f85b13155d9d752896b4a628cfc7d4047638ddb2d792d52014bd1f32db8b2a2085a05e25fc", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) [ 1128.301108] nbd: must specify a device to reconfigure [ 1128.319003] nbd: must specify a device to reconfigure [ 1128.341226] nbd: must specify a device to reconfigure 17:53:58 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) 17:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="010000aac03b109b571dc31b00000000000002000000"], 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r8 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f00000002c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f0000000340)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000440)={&(0x7f0000000580)=ANY=[@ANYBLOB="84000000", @ANYRES16=r7, @ANYBLOB="0800e5d30000fedbdf25030000004c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08030000009f403a407820801304ab9309000000de21682edee0df7b23dc3584fc7efc14e731a3f9ca44cf303bad6f30fd007f97a51e17aae281d00bd5c599c578bc77c1aa934336de4acbed9b41349bc0a989ede54f1f1372a1e1", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r10, @ANYBLOB="08000100", @ANYRES32=r11, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="0c00060001000000000000000c00080004000000000000000c0003000000000001000000"], 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x38, r5, 0x400, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}]}, 0x38}, 0x1, 0x0, 0x0, 0x4044021}, 0x80) [ 1128.353764] nbd: must specify a device to reconfigure 17:53:58 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) 17:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1128.417289] nbd: must specify a device to reconfigure 17:53:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c0200008e10e5e0c1d0370518bb5cf331059bec6b8b7937f394d69d691910e45446238c9a4d752aa57f52270f8189d083411b87190ee7aeb7dd4a916cf128809162d335881d1a1abd53c12b216ec259006082009056c106b46b3355d7f47dc828c35a9a9f7d073acce3d39d2c11f7b4990ba1ab84f85b13155d9d752896b4a628cfc7d4047638ddb2d792d52014bd1f32db8b2a2085a05e25fc", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:58 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) 17:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:58 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) [ 1128.446943] nbd: must specify a device to reconfigure [ 1128.459606] nbd: must specify a device to reconfigure [ 1128.479561] nbd: must specify a device to reconfigure 17:53:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0x58, r1, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x44004}, 0x4000004) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000040", @ANYRES16=r1, @ANYBLOB="000100fbff00be0000000000000006bd000000000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 17:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1128.543826] nbd: must specify a device to reconfigure [ 1128.572077] nbd: must specify a device to reconfigure [ 1128.578873] nbd: must specify a device to reconfigure [ 1128.584665] nbd: must specify a device to reconfigure 17:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="010000aac03b109b571dc31b00000000000002000000"], 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) r8 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f00000002c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f0000000340)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000440)={&(0x7f0000000580)=ANY=[@ANYBLOB="84000000", @ANYRES16=r7, @ANYBLOB="0800e5d30000fedbdf25030000004c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08030000009f403a407820801304ab9309000000de21682edee0df7b23dc3584fc7efc14e731a3f9ca44cf303bad6f30fd007f97a51e17aae281d00bd5c599c578bc77c1aa934336de4acbed9b41349bc0a989ede54f1f1372a1e1", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r10, @ANYBLOB="08000100", @ANYRES32=r11, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="0c00060001000000000000000c00080004000000000000000c0003000000000001000000"], 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x38, r5, 0x400, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}]}, 0x38}, 0x1, 0x0, 0x0, 0x4044021}, 0x80) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="010000aac03b109b571dc31b00000000000002000000"], 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) (async) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) (async) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f00000002c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)) (async) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f0000000340)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000440)={&(0x7f0000000580)=ANY=[@ANYBLOB="84000000", @ANYRES16=r7, @ANYBLOB="0800e5d30000fedbdf25030000004c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08030000009f403a407820801304ab9309000000de21682edee0df7b23dc3584fc7efc14e731a3f9ca44cf303bad6f30fd007f97a51e17aae281d00bd5c599c578bc77c1aa934336de4acbed9b41349bc0a989ede54f1f1372a1e1", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r10, @ANYBLOB="08000100", @ANYRES32=r11, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="0c00060001000000000000000c00080004000000000000000c0003000000000001000000"], 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x38, r5, 0x400, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}]}, 0x38}, 0x1, 0x0, 0x0, 0x4044021}, 0x80) (async) 17:53:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0x58, r1, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x44004}, 0x4000004) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000040", @ANYRES16=r1, @ANYBLOB="000100fbff00be0000000000000006bd000000000000"], 0x1c}}, 0x0) (async, rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) [ 1128.628124] nbd: must specify a device to reconfigure 17:53:58 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) [ 1128.651304] nbd: must specify a device to reconfigure 17:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1128.691513] nbd: must specify a device to reconfigure [ 1128.705154] nbd: must specify a device to reconfigure 17:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1128.740442] nbd: must specify a device to reconfigure 17:53:58 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1128.773372] nbd: must specify a device to reconfigure [ 1128.781946] nbd: must specify a device to reconfigure [ 1128.802286] nbd: must specify a device to reconfigure 17:53:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0x58, r1, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x44004}, 0x4000004) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000040", @ANYRES16=r1, @ANYBLOB="000100fbff00be0000000000000006bd000000000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0x58, r1, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x44004}, 0x4000004) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000040", @ANYRES16=r1, @ANYBLOB="000100fbff00be0000000000000006bd000000000000"], 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) 17:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1128.836077] nbd: must specify a device to reconfigure 17:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="010000aac03b109b571dc31b00000000000002000000"], 0x1c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) r8 = bpf$ITER_CREATE(0x21, &(0x7f0000000200), 0x8) ioctl$AUTOFS_DEV_IOCTL_PROTOSUBVER(0xffffffffffffffff, 0xc0189373, &(0x7f00000002c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x2}}, './file0\x00'}) (async) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) (async) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f0000000340)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x1}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000440)={&(0x7f0000000580)=ANY=[@ANYBLOB="84000000", @ANYRES16=r7, @ANYBLOB="0800e5d30000fedbdf25030000004c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08030000009f403a407820801304ab9309000000de21682edee0df7b23dc3584fc7efc14e731a3f9ca44cf303bad6f30fd007f97a51e17aae281d00bd5c599c578bc77c1aa934336de4acbed9b41349bc0a989ede54f1f1372a1e1", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="08000100", @ANYRES32=r10, @ANYBLOB="08000100", @ANYRES32=r11, @ANYBLOB="08000100", @ANYRES32=r12, @ANYBLOB="0c00060001000000000000000c00080004000000000000000c0003000000000001000000"], 0x84}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x38, r5, 0x400, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}]}, 0x38}, 0x1, 0x0, 0x0, 0x4044021}, 0x80) [ 1128.884720] nbd: must specify a device to reconfigure 17:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:58 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1128.936965] nbd: must specify a device to reconfigure 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x7c, r3, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x122}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000000}, 0x20000080) 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4979}}, './file0\x00'}) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x70, r3, 0x400, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x70}, 0x1, 0x0, 0x0, 0x408c4}, 0x10) 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) [ 1128.959632] nbd: must specify a device to reconfigure [ 1128.979409] nbd: must specify a device to reconfigure 17:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x7c, r3, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x122}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000000}, 0x20000080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x7c, r3, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x122}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000000}, 0x20000080) (async) [ 1129.031420] nbd: must specify a device to reconfigure 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4979}}, './file0\x00'}) (async, rerun: 32) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (rerun: 32) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x70, r3, 0x400, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x70}, 0x1, 0x0, 0x0, 0x408c4}, 0x10) 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) ioctl$SNDCTL_DSP_GETFMTS(0xffffffffffffffff, 0x8004500b, &(0x7f0000000000)=0xc0) [ 1129.108406] nbd: must specify a device to reconfigure 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x7c, r3, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x122}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000000}, 0x20000080) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r4 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4979}}, './file0\x00'}) r6 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x70, r3, 0x400, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x70}, 0x1, 0x0, 0x0, 0x408c4}, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r4, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_READY(0xffffffffffffffff, 0xc0189376, &(0x7f00000000c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4979}}, './file0\x00'}) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r6, 0x5001, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x5}}, './file0\x00'}) (async) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x70, r3, 0x400, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x70}, 0x1, 0x0, 0x0, 0x408c4}, 0x10) (async) 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1129.224450] nbd: must specify a device to reconfigure 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="05000100", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1129.347806] nbd: must specify a device to reconfigure 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="05000100", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1129.450076] nbd: must specify a device to reconfigure 17:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="05000100", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1129.559574] nbd: must specify a device to reconfigure 17:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000440)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xee01, 0xee01}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000580)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x3c, r1, 0x400, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffff9}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x840}, 0x400c004) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000003c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x2c, r1, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4004000}, 0x20006001) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="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"], 0x44}, 0x1, 0x0, 0x0, 0x8080}, 0x20010810) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="01000000000065719fef69d26b120c01000000000000"], 0x1c}}, 0x0) 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="340088a8", @ANYRES16=r4, @ANYBLOB="04002cbd7000fbdbdf250500000008000100000000000c000400ff070000000000000c0002000700000000000000"], 0x34}, 0x1, 0x0, 0x0, 0x40001}, 0x44014) [ 1129.667164] nbd: must specify a device to reconfigure 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="340088a8", @ANYRES16=r4, @ANYBLOB="04002cbd7000fbdbdf250500000008000100000000000c000400ff070000000000000c0002000700000000000000"], 0x34}, 0x1, 0x0, 0x0, 0x40001}, 0x44014) 17:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000440)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xee01, 0xee01}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000580)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x3c, r1, 0x400, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffff9}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x840}, 0x400c004) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000003c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x2c, r1, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4004000}, 0x20006001) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="00042bbd7000fb66df250200000005000a002d0000000c00020012000000000000000c000300060000000000000004000a000c000300000000000000000004057a2e018e5fec3d31aa8b646e59a423209938a27d898d9227de7b635ad04d8284f9fd2ba786644c4d272843b6aa3c61a9d730803f7c5012a3b70af0c82c591ffcf81b977c16042eb5e063ca390b9f35caf011f15c32889136eab04f5ff3c4474c93e58ed8b996cea8cda86a3fd65ba0552f5325a1d5ea6b3720e76e2bc688fab31be660b0790612bc3d0d13ca14cc4d53291a2b27507e814138b25da74a0c9fbdc5107a3c9eaf680b5990b50269ea181f61bf9fc81b8733e46948be5d8d1e98595fa7b22835f978"], 0x44}, 0x1, 0x0, 0x0, 0x8080}, 0x20010810) (async, rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="01000000000065719fef69d26b120c01000000000000"], 0x1c}}, 0x0) (rerun: 64) 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1129.770914] nbd: must specify a device to reconfigure 17:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_REQUESTER(0xffffffffffffffff, 0xc018937b, &(0x7f0000000440)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xee01, 0xee01}}, './file0\x00'}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000580)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x3c, r1, 0x400, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffff9}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x840}, 0x400c004) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000003c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x2c, r1, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4004000}, 0x20006001) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000140)={&(0x7f0000000200)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="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"], 0x44}, 0x1, 0x0, 0x0, 0x8080}, 0x20010810) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="01000000000065719fef69d26b120c01000000000000"], 0x1c}}, 0x0) [ 1129.829768] nbd: must specify a device to reconfigure 17:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="340088a8", @ANYRES16=r4, @ANYBLOB="04002cbd7000fbdbdf250500000008000100000000000c000400ff070000000000000c0002000700000000000000"], 0x34}, 0x1, 0x0, 0x0, 0x40001}, 0x44014) 17:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:53:59 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:53:59 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1129.882310] nbd: must specify a device to reconfigure 17:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x2c}}, 0x4004011) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x90}, 0x20000014) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r5) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f00000000c0)={&(0x7f0000000040)="93e4ea2045b6c3801a7ee4c8059eeadf687a6ce48f5a68cb776a377faf4199c66ca4c6935806ea34eb344b8fb1136d05d244de35fcbea5", 0x37}) 17:54:00 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1129.950579] nbd: must specify a device to reconfigure 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r3, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x2c}}, 0x4004011) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x90}, 0x20000014) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r5) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f00000000c0)={&(0x7f0000000040)="93e4ea2045b6c3801a7ee4c8059eeadf687a6ce48f5a68cb776a377faf4199c66ca4c6935806ea34eb344b8fb1136d05d244de35fcbea5", 0x37}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x2c}}, 0x4004011) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x90}, 0x20000014) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r5) (async) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f00000000c0)={&(0x7f0000000040)="93e4ea2045b6c3801a7ee4c8059eeadf687a6ce48f5a68cb776a377faf4199c66ca4c6935806ea34eb344b8fb1136d05d244de35fcbea5", 0x37}) (async) 17:54:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (rerun: 32) 17:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1130.083922] nbd: must specify a device to reconfigure 17:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async, rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) (rerun: 64) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x2c}}, 0x4004011) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x90}, 0x20000014) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r5) (async, rerun: 32) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f00000000c0)={&(0x7f0000000040)="93e4ea2045b6c3801a7ee4c8059eeadf687a6ce48f5a68cb776a377faf4199c66ca4c6935806ea34eb344b8fb1136d05d244de35fcbea5", 0x37}) (rerun: 32) 17:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1130.192656] nbd: must specify a device to reconfigure 17:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYRES32=r2, @ANYRES16=r1, @ANYBLOB="010000200000"], 0x1c}, 0x1, 0x0, 0x0, 0x340000c0}, 0x0) ioctl$DRM_IOCTL_MODE_GETPLANE(0xffffffffffffffff, 0xc02064b6, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0x4, &(0x7f0000000040)=[0x0, 0x0, 0x0, 0x0]}) 17:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1130.336943] nbd: must specify a device to reconfigure 17:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYRES32=r2, @ANYRES16=r1, @ANYBLOB="010000200000"], 0x1c}, 0x1, 0x0, 0x0, 0x340000c0}, 0x0) ioctl$DRM_IOCTL_MODE_GETPLANE(0xffffffffffffffff, 0xc02064b6, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0x4, &(0x7f0000000040)=[0x0, 0x0, 0x0, 0x0]}) 17:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1130.451871] nbd: must specify a device to reconfigure 17:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1130.537951] nbd: must specify a device to reconfigure 17:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYRES32=r2, @ANYRES16=r1, @ANYBLOB="010000200000"], 0x1c}, 0x1, 0x0, 0x0, 0x340000c0}, 0x0) ioctl$DRM_IOCTL_MODE_GETPLANE(0xffffffffffffffff, 0xc02064b6, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0x4, &(0x7f0000000040)=[0x0, 0x0, 0x0, 0x0]}) 17:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:00 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1130.582636] nbd: must specify a device to reconfigure 17:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100000000000000007c910000001800010000000000"], 0x1c}}, 0x0) 17:54:00 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1130.682722] nbd: must specify a device to reconfigure 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100000000000000007c910000001800010000000000"], 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100000000000000007c910000001800010000000000"], 0x1c}}, 0x0) 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100000000000000007c910000001800010000000000"], 0x1c}}, 0x0) 17:54:00 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:00 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x8, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) socketpair(0x29, 0x0, 0xfffff800, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r1, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000000}, 0x200418c0) 17:54:01 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x8, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) socketpair(0x29, 0x0, 0xfffff800, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r1, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000000}, 0x200418c0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x8, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) socketpair(0x29, 0x0, 0xfffff800, &(0x7f0000000040)) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r1, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000000}, 0x200418c0) (async) 17:54:01 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x8, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async, rerun: 64) r3 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (rerun: 64) ioctl$SNDCTL_DSP_SYNC(r3, 0x5001, 0x0) (async) socketpair(0x29, 0x0, 0xfffff800, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r1, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000000}, 0x200418c0) 17:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14010a25", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x34, 0x0, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0xae06a72901a27359}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000000}, 0x810) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'wg1\x00', 0x0}) ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f00000001c0)={'wg1\x00', 0x0}) sendmsg$FOU_CMD_DEL(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x4c, 0x0, 0x10, 0x70bd2c, 0x25dfdbfd, {}, [@FOU_ATTR_IFINDEX={0x8, 0xb, r4}, @FOU_ATTR_IFINDEX={0x8, 0xb, r5}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private0={0xfc, 0x0, '\x00', 0x1}}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e23}, @FOU_ATTR_REMCSUM_NOPARTIAL={0x4}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e20}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x8050) r6 = socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$fou(&(0x7f00000003c0), 0xffffffffffffffff) sendmsg$FOU_CMD_DEL(r6, &(0x7f0000000580)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000540)={&(0x7f0000000400)={0x54, r7, 0x800, 0x70bd25, 0x25dfdbfc, {}, [@FOU_ATTR_AF={0x5, 0x2, 0xa}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private1}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private0={0xfc, 0x0, '\x00', 0x1}}, @FOU_ATTR_PEER_V4={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3b}}]}, 0x54}, 0x1, 0x0, 0x0, 0xc0}, 0x4004000) 17:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14010a25", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14010a25", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x34, 0x0, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0xae06a72901a27359}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000000}, 0x810) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x34, 0x0, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0xae06a72901a27359}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000000}, 0x810) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'wg1\x00', 0x0}) ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f00000001c0)={'wg1\x00', 0x0}) sendmsg$FOU_CMD_DEL(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x4c, 0x0, 0x10, 0x70bd2c, 0x25dfdbfd, {}, [@FOU_ATTR_IFINDEX={0x8, 0xb, r4}, @FOU_ATTR_IFINDEX={0x8, 0xb, r5}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private0={0xfc, 0x0, '\x00', 0x1}}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e23}, @FOU_ATTR_REMCSUM_NOPARTIAL={0x4}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e20}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x8050) r6 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$fou(&(0x7f00000003c0), 0xffffffffffffffff) (async) r7 = syz_genetlink_get_family_id$fou(&(0x7f00000003c0), 0xffffffffffffffff) sendmsg$FOU_CMD_DEL(r6, &(0x7f0000000580)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000540)={&(0x7f0000000400)={0x54, r7, 0x800, 0x70bd25, 0x25dfdbfc, {}, [@FOU_ATTR_AF={0x5, 0x2, 0xa}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private1}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private0={0xfc, 0x0, '\x00', 0x1}}, @FOU_ATTR_PEER_V4={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3b}}]}, 0x54}, 0x1, 0x0, 0x0, 0xc0}, 0x4004000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14010a25", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)=ANY=[@ANYBLOB="14010a25", @ANYRES16=0x0, @ANYBLOB="0000000000000000000002000000"], 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x34, 0x0, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0xae06a72901a27359}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000000}, 0x810) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f0000000180)={'wg1\x00', 0x0}) ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f00000001c0)={'wg1\x00', 0x0}) sendmsg$FOU_CMD_DEL(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x4c, 0x0, 0x10, 0x70bd2c, 0x25dfdbfd, {}, [@FOU_ATTR_IFINDEX={0x8, 0xb, r4}, @FOU_ATTR_IFINDEX={0x8, 0xb, r5}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private0={0xfc, 0x0, '\x00', 0x1}}, @FOU_ATTR_PEER_PORT={0x6, 0xa, 0x4e23}, @FOU_ATTR_REMCSUM_NOPARTIAL={0x4}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e20}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x8050) r6 = socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$fou(&(0x7f00000003c0), 0xffffffffffffffff) sendmsg$FOU_CMD_DEL(r6, &(0x7f0000000580)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000540)={&(0x7f0000000400)={0x54, r7, 0x800, 0x70bd25, 0x25dfdbfc, {}, [@FOU_ATTR_AF={0x5, 0x2, 0xa}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private1}, @FOU_ATTR_PORT={0x6, 0x1, 0x4e23}, @FOU_ATTR_PEER_V6={0x14, 0x9, @private0={0xfc, 0x0, '\x00', 0x1}}, @FOU_ATTR_PEER_V4={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3b}}]}, 0x54}, 0x1, 0x0, 0x0, 0xc0}, 0x4004000) 17:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x36, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x5}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r2) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000480)=ANY=[], 0x1c}}, 0x0) 17:54:01 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f00000001c0)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x36, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x5}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r2) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000480)=ANY=[], 0x1c}}, 0x0) 17:54:01 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x36, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x5}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r2) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000480)=ANY=[], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000480)={0x6, 0x0, 0x0, &(0x7f0000000280)='GPL\x00', 0x36, 0xe6, &(0x7f00000002c0)=""/230, 0x0, 0x0, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, &(0x7f00000003c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f0000000400)={0x5, 0x7, 0x3, 0x5}, 0x10, 0x0, 0x0, 0x0, &(0x7f0000000440)=[0xffffffffffffffff]}, 0x80) (async) ioctl$PERF_EVENT_IOC_SET_BPF(0xffffffffffffffff, 0x40042408, r2) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000500)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000480)=ANY=[], 0x1c}}, 0x0) (async) 17:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:01 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:01 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3f}}, './file0\x00'}) r6 = bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000140)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) r11 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r11, 0x5001, 0x0) r12 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r12, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000280)={&(0x7f0000000180)={0xd8, r4, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_SOCKETS={0xd, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8001}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8, 0x1, r11}, {0x8, 0x1, r12}]}]}, 0xd8}, 0x1, 0x0, 0x0, 0x8004}, 0x80) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1132.047721] nbd: must specify a device to reconfigure 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3f}}, './file0\x00'}) (async) r6 = bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) (async) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000140)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) (async) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) (async) r11 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r11, 0x5001, 0x0) (async) r12 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r12, 0x5001, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000280)={&(0x7f0000000180)={0xd8, r4, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_SOCKETS={0xd, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8001}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8, 0x1, r11}, {0x8, 0x1, r12}]}]}, 0xd8}, 0x1, 0x0, 0x0, 0x8004}, 0x80) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3f}}, './file0\x00'}) r6 = bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000100)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0xffffffffffffffff}}, './file0\x00'}) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000140)={{0x1, 0x1, 0x18, 0xffffffffffffffff}, './file0\x00'}) r9 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) r10 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) r11 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r11, 0x5001, 0x0) r12 = openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) ioctl$SNDCTL_DSP_SYNC(r12, 0x5001, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000280)={&(0x7f0000000180)={0xd8, r4, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_SOCKETS={0xd, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8001}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8, 0x1, r11}, {0x8, 0x1, r12}]}]}, 0xd8}, 0x1, 0x0, 0x0, 0x8004}, 0x80) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000280)={&(0x7f0000000140), 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x2c}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_PROTOVER(0xffffffffffffffff, 0xc0189372, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x3f}}, './file0\x00'}) (async) bpf$ITER_CREATE(0x21, &(0x7f00000000c0), 0x8) (async) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000100)={{0x1, 0x1, 0x18}, './file0\x00'}) (async) ioctl$AUTOFS_DEV_IOCTL_SETPIPEFD(0xffffffffffffffff, 0xc0189378, &(0x7f0000000140)={{0x1, 0x1, 0x18}, './file0\x00'}) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r9, 0x5001, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r10, 0x5001, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r11, 0x5001, 0x0) (async) openat$zero(0xffffffffffffff9c, &(0x7f0000000280), 0x0, 0x0) (async) ioctl$SNDCTL_DSP_SYNC(r12, 0x5001, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000280)={&(0x7f0000000180)={0xd8, r4, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000000}, @NBD_ATTR_SOCKETS={0xd, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8001}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8, 0x1, r11}, {0x8, 0x1, r12}]}]}, 0xd8}, 0x1, 0x0, 0x0, 0x8004}, 0x80) (async) [ 1132.175597] nbd: must specify a device to reconfigure 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1132.281224] nbd: must specify a device to reconfigure 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="01000000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x14, r1, 0x20, 0x70bd26, 0x25dfdbfb}, 0x14}}, 0x800) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x14, r1, 0x20, 0x70bd26, 0x25dfdbfb}, 0x14}}, 0x800) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x14, r1, 0x20, 0x70bd26, 0x25dfdbfb}, 0x14}}, 0x800) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000040)={&(0x7f00000000c0)={0x14, r1, 0x20, 0x70bd26, 0x25dfdbfb}, 0x14}}, 0x800) (async) 17:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB='\\\t\x00\x00', @ANYRES16=r2, @ANYBLOB="00022bbd7000ffdbdf25050000000c000800f7ffffffffffffff0c000300ff7f0000000000000c000400ec010000000000000c0003003f000000000000000c000400dffaffffffffffff0c0006000200000000000000"], 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x20008040) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000340)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$WG_CMD_GET_DEVICE(r5, &(0x7f0000000400)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000540)={0x2a8, 0x0, 0x0, 0x70bd25, 0x25dfdbfd, {}, [@WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @a}, @WGDEVICE_A_FLAGS={0x8}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @c}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @b}, @WGDEVICE_A_PEERS={0x1f8, 0x8, 0x0, 0x1, [{0x1f4, 0x0, 0x0, 0x1, [@WGPEER_A_ALLOWEDIPS={0x1c8, 0x9, 0x0, 0x1, [{0x154, 0x0, 0x0, 0x1, [@ipv6={{0x6}, {0x14, 0x2, @remote}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @dev={0xfe, 0x80, '\x00', 0x3e}}, {0x5, 0x3, 0x1}}, @ipv4={{0x6}, {0x8, 0x2, @empty}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @dev={0xfe, 0x80, '\x00', 0x1e}}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @mcast1}, {0x5, 0x3, 0x2}}, @ipv6={{0x6}, {0x14, 0x2, @local}, {0x5, 0x3, 0x2}}, @ipv4={{0x6}, {0x8, 0x2, @broadcast}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @mcast1}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @loopback}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, {0x5, 0x3, 0x3}}]}, {0x70, 0x0, 0x0, 0x1, [@ipv6={{0x6}, {0x14, 0x2, @rand_addr=' \x01\x00'}, {0x5, 0x3, 0x2}}, @ipv6={{0x6}, {0x14, 0x2, @remote}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @local}, {0x5}}]}]}, @WGPEER_A_FLAGS={0x8, 0x3, 0x2}, @WGPEER_A_PROTOCOL_VERSION={0x8}, @WGPEER_A_FLAGS={0x8}, @WGPEER_A_PROTOCOL_VERSION={0x8}, @WGPEER_A_FLAGS={0x8, 0x3, 0x4}]}]}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg1\x00'}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg0\x00'}]}, 0x2a8}, 0x1, 0x0, 0x0, 0x1}, 0x20040840) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x2c, r2, 0x10, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x48000}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1133.172068] nbd: must specify at least one socket [ 1133.178254] nbd: must specify at least one socket 17:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB='\\\t\x00\x00', @ANYRES16=r2, @ANYBLOB="00022bbd7000ffdbdf25050000000c000800f7ffffffffffffff0c000300ff7f0000000000000c000400ec010000000000000c0003003f000000000000000c000400dffaffffffffffff0c0006000200000000000000"], 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x20008040) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000340)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$WG_CMD_GET_DEVICE(r5, &(0x7f0000000400)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000540)={0x2a8, 0x0, 0x0, 0x70bd25, 0x25dfdbfd, {}, [@WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @a}, @WGDEVICE_A_FLAGS={0x8}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @c}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @b}, @WGDEVICE_A_PEERS={0x1f8, 0x8, 0x0, 0x1, [{0x1f4, 0x0, 0x0, 0x1, [@WGPEER_A_ALLOWEDIPS={0x1c8, 0x9, 0x0, 0x1, [{0x154, 0x0, 0x0, 0x1, [@ipv6={{0x6}, {0x14, 0x2, @remote}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @dev={0xfe, 0x80, '\x00', 0x3e}}, {0x5, 0x3, 0x1}}, @ipv4={{0x6}, {0x8, 0x2, @empty}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @dev={0xfe, 0x80, '\x00', 0x1e}}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @mcast1}, {0x5, 0x3, 0x2}}, @ipv6={{0x6}, {0x14, 0x2, @local}, {0x5, 0x3, 0x2}}, @ipv4={{0x6}, {0x8, 0x2, @broadcast}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @mcast1}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @loopback}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, {0x5, 0x3, 0x3}}]}, {0x70, 0x0, 0x0, 0x1, [@ipv6={{0x6}, {0x14, 0x2, @rand_addr=' \x01\x00'}, {0x5, 0x3, 0x2}}, @ipv6={{0x6}, {0x14, 0x2, @remote}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @local}, {0x5}}]}]}, @WGPEER_A_FLAGS={0x8, 0x3, 0x2}, @WGPEER_A_PROTOCOL_VERSION={0x8}, @WGPEER_A_FLAGS={0x8}, @WGPEER_A_PROTOCOL_VERSION={0x8}, @WGPEER_A_FLAGS={0x8, 0x3, 0x4}]}]}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg1\x00'}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg0\x00'}]}, 0x2a8}, 0x1, 0x0, 0x0, 0x1}, 0x20040840) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x2c, r2, 0x10, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x48000}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB='\\\t\x00\x00', @ANYRES16=r2, @ANYBLOB="00022bbd7000ffdbdf25050000000c000800f7ffffffffffffff0c000300ff7f0000000000000c000400ec010000000000000c0003003f000000000000000c000400dffaffffffffffff0c0006000200000000000000"], 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x20008040) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000340)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) (async) sendmsg$WG_CMD_GET_DEVICE(r5, &(0x7f0000000400)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000540)={0x2a8, 0x0, 0x0, 0x70bd25, 0x25dfdbfd, {}, [@WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @a}, @WGDEVICE_A_FLAGS={0x8}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @c}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @b}, @WGDEVICE_A_PEERS={0x1f8, 0x8, 0x0, 0x1, [{0x1f4, 0x0, 0x0, 0x1, [@WGPEER_A_ALLOWEDIPS={0x1c8, 0x9, 0x0, 0x1, [{0x154, 0x0, 0x0, 0x1, [@ipv6={{0x6}, {0x14, 0x2, @remote}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @dev={0xfe, 0x80, '\x00', 0x3e}}, {0x5, 0x3, 0x1}}, @ipv4={{0x6}, {0x8, 0x2, @empty}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @dev={0xfe, 0x80, '\x00', 0x1e}}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @mcast1}, {0x5, 0x3, 0x2}}, @ipv6={{0x6}, {0x14, 0x2, @local}, {0x5, 0x3, 0x2}}, @ipv4={{0x6}, {0x8, 0x2, @broadcast}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @mcast1}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @loopback}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, {0x5, 0x3, 0x3}}]}, {0x70, 0x0, 0x0, 0x1, [@ipv6={{0x6}, {0x14, 0x2, @rand_addr=' \x01\x00'}, {0x5, 0x3, 0x2}}, @ipv6={{0x6}, {0x14, 0x2, @remote}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @local}, {0x5}}]}]}, @WGPEER_A_FLAGS={0x8, 0x3, 0x2}, @WGPEER_A_PROTOCOL_VERSION={0x8}, @WGPEER_A_FLAGS={0x8}, @WGPEER_A_PROTOCOL_VERSION={0x8}, @WGPEER_A_FLAGS={0x8, 0x3, 0x4}]}]}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg1\x00'}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg0\x00'}]}, 0x2a8}, 0x1, 0x0, 0x0, 0x1}, 0x20040840) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x2c, r2, 0x10, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x48000}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 17:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB='\\\t\x00\x00', @ANYRES16=r2, @ANYBLOB="00022bbd7000ffdbdf25050000000c000800f7ffffffffffffff0c000300ff7f0000000000000c000400ec010000000000000c0003003f000000000000000c000400dffaffffffffffff0c0006000200000000000000"], 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x20008040) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000240)={&(0x7f00000000c0)={0x14}, 0x14}}, 0x0) (async) ioctl$AUTOFS_DEV_IOCTL_ISMOUNTPOINT(0xffffffffffffffff, 0xc018937e, &(0x7f0000000340)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$WG_CMD_GET_DEVICE(r5, &(0x7f0000000400)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000540)={0x2a8, 0x0, 0x0, 0x70bd25, 0x25dfdbfd, {}, [@WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @a}, @WGDEVICE_A_FLAGS={0x8}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @c}, @WGDEVICE_A_PRIVATE_KEY={0x24, 0x3, @b}, @WGDEVICE_A_PEERS={0x1f8, 0x8, 0x0, 0x1, [{0x1f4, 0x0, 0x0, 0x1, [@WGPEER_A_ALLOWEDIPS={0x1c8, 0x9, 0x0, 0x1, [{0x154, 0x0, 0x0, 0x1, [@ipv6={{0x6}, {0x14, 0x2, @remote}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @dev={0xfe, 0x80, '\x00', 0x3e}}, {0x5, 0x3, 0x1}}, @ipv4={{0x6}, {0x8, 0x2, @empty}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @dev={0xfe, 0x80, '\x00', 0x1e}}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @mcast1}, {0x5, 0x3, 0x2}}, @ipv6={{0x6}, {0x14, 0x2, @local}, {0x5, 0x3, 0x2}}, @ipv4={{0x6}, {0x8, 0x2, @broadcast}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @mcast1}, {0x5, 0x3, 0x1}}, @ipv6={{0x6}, {0x14, 0x2, @loopback}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, {0x5, 0x3, 0x3}}]}, {0x70, 0x0, 0x0, 0x1, [@ipv6={{0x6}, {0x14, 0x2, @rand_addr=' \x01\x00'}, {0x5, 0x3, 0x2}}, @ipv6={{0x6}, {0x14, 0x2, @remote}, {0x5, 0x3, 0x3}}, @ipv6={{0x6}, {0x14, 0x2, @local}, {0x5}}]}]}, @WGPEER_A_FLAGS={0x8, 0x3, 0x2}, @WGPEER_A_PROTOCOL_VERSION={0x8}, @WGPEER_A_FLAGS={0x8}, @WGPEER_A_PROTOCOL_VERSION={0x8}, @WGPEER_A_FLAGS={0x8, 0x3, 0x4}]}]}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg1\x00'}, @WGDEVICE_A_IFNAME={0x14, 0x2, 'wg0\x00'}]}, 0x2a8}, 0x1, 0x0, 0x0, 0x1}, 0x20040840) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x2c, r2, 0x10, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x48000}, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1133.522053] nbd: must specify at least one socket 17:54:03 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="12230000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1133.624080] nbd: must specify at least one socket [ 1133.640275] nbd: must specify at least one socket 17:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="12230000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r1, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="12230000000000000000020000000800010000000000"], 0x1c}}, 0x0) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x6c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x4}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x6c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x4}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x6c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x4}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="100000000000000000001b0000000800010000000000"], 0x1c}}, 0x0) 17:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000) 17:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="100000000000000000001b0000000800010000000000"], 0x1c}}, 0x0) 17:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1134.205265] nbd: must specify a size in bytes for the device [ 1134.239323] nbd: must specify at least one socket 17:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="100000000000000000001b0000000800010000000000"], 0x1c}}, 0x0) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1134.310241] nbd: must specify a size in bytes for the device 17:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1134.381893] nbd: must specify at least one socket 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01000000000054581565027a8af6a28c5065b4000000"], 0x1c}}, 0x0) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1134.429427] nbd: must specify a size in bytes for the device [ 1134.465872] nbd: must specify a size in bytes for the device [ 1134.480032] nbd: must specify at least one socket [ 1134.487781] nbd: must specify at least one socket [ 1134.512727] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01000000000054581565027a8af6a28c5065b4000000"], 0x1c}}, 0x0) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1134.537296] nbd: must specify an index to disconnect [ 1134.549384] nbd: must specify a size in bytes for the device 17:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1134.637034] nbd: must specify at least one socket 17:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={0x0}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01000000000054581565027a8af6a28c5065b4000000"], 0x1c}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01000000000054581565027a8af6a28c5065b4000000"], 0x1c}}, 0x0) [ 1134.686482] nbd: must specify a size in bytes for the device 17:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x6c, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x4}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1134.820972] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1134.834995] nbd: must specify an index to disconnect [ 1134.842346] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1134.853303] nbd: must specify an index to disconnect 17:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x6c, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x4}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1134.869631] nbd: must specify at least one socket 17:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, 0x0, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x6c, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x4}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000480)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 17:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) prctl$PR_PAC_RESET_KEYS(0x36, 0x8) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x4}]}, 0x20}}, 0x0) 17:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x0, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1135.390024] nbd: couldn't find device at index 4 17:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) prctl$PR_PAC_RESET_KEYS(0x36, 0x8) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x4}]}, 0x20}}, 0x0) 17:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1135.557229] nbd: couldn't find device at index 4 17:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) prctl$PR_PAC_RESET_KEYS(0x36, 0x8) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, &(0x7f0000000040)={{0x1, 0x1, 0x18, 0xffffffffffffffff, {0x4}}, './file0\x00'}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x4}]}, 0x20}}, 0x0) 17:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, 0x0, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1136.059698] nbd: must specify a size in bytes for the device 17:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, 0x0, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1136.101464] nbd: must specify at least one socket 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, 0x0, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1136.229449] nbd: must specify at least one socket 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1136.289442] nbd: must specify a size in bytes for the device 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1136.453334] nbd: must specify at least one socket [ 1136.472279] nbd: must specify a size in bytes for the device 17:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1136.609265] nbd: must specify a size in bytes for the device 17:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) [ 1136.761489] nbd: must specify a size in bytes for the device 17:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1136.896475] nbd: must specify a size in bytes for the device [ 1136.925978] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 17:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1137.117101] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 17:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x7c, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x68, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1137.277735] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 17:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x74, r2, 0x964816d47ad9d817, 0x70bd26, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000300)=ANY=[@ANYBLOB="14"], 0xc0}}, 0x0) 17:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1137.434392] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1137.494916] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1137.506266] block nbd0: NBD_DISCONNECT [ 1137.518718] kasan: CONFIG_KASAN_INLINE enabled [ 1137.523328] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 1137.530702] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 1137.536943] CPU: 0 PID: 14893 Comm: systemd-udevd Not tainted 4.19.211-syzkaller #0 [ 1137.544826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 1137.554200] RIP: 0010:__lock_acquire+0x1eb/0x3ff0 [ 1137.555381] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1137.559050] Code: 2b 29 00 00 48 81 c4 98 01 00 00 44 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 2a 00 00 49 81 3e 20 f2 66 8c 0f 84 65 ff ff [ 1137.559057] RSP: 0018:ffff88809721f910 EFLAGS: 00010006 17:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) ioctl$AUTOFS_DEV_IOCTL_EXPIRE(0xffffffffffffffff, 0xc018937c, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x70, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x60, r1, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x60}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) 17:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000280)={0x54, r2, 0x964816d47ad9d817, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x105}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x18000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_SOCKETS={0x4}]}, 0x54}, 0x1, 0x0, 0x0, 0x20000004}, 0x4000) [ 1137.559067] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1137.559072] RDX: 0000000000000022 RSI: 0000000000000000 RDI: 0000000000000001 [ 1137.559083] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 1137.613649] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 1137.620924] R13: ffff888091b142c0 R14: 0000000000000110 R15: 0000000000000001 [ 1137.628226] FS: 00007f366cc3b8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 1137.636454] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1137.642337] CR2: 00007f1e75c18718 CR3: 00000000b3286000 CR4: 00000000003406f0 [ 1137.649612] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1137.656885] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1137.664327] Call Trace: [ 1137.666954] ? __lock_acquire+0x6de/0x3ff0 [ 1137.671200] ? mark_held_locks+0xf0/0xf0 [ 1137.675312] ? __lock_acquire+0x6de/0x3ff0 [ 1137.679556] ? mark_held_locks+0xf0/0xf0 [ 1137.683629] ? __free_object+0xdd/0x1e0 [ 1137.687625] ? mark_held_locks+0xf0/0xf0 [ 1137.691692] ? mark_held_locks+0xa6/0xf0 [ 1137.695759] lock_acquire+0x170/0x3c0 [ 1137.699573] ? flush_workqueue+0xe8/0x13e0 [ 1137.703819] flush_workqueue+0x117/0x13e0 [ 1137.707977] ? flush_workqueue+0xe8/0x13e0 [ 1137.712221] ? lock_downgrade+0x720/0x720 [ 1137.716462] ? hctx_unlock+0x83/0x140 [ 1137.720271] ? check_flush_dependency+0x400/0x400 [ 1137.725141] nbd_disconnect_and_put+0x100/0x190 [ 1137.729820] nbd_release+0x144/0x170 [ 1137.733631] ? nbd_queue_rq+0xe60/0xe60 [ 1137.737612] __blkdev_put+0x636/0x870 [ 1137.741420] ? fsync_bdev+0xc0/0xc0 [ 1137.745046] ? locks_remove_file+0x2cd/0x450 [ 1137.749458] ? blkdev_put+0x85/0x520 [ 1137.753175] ? blkdev_put+0x520/0x520 [ 1137.757064] blkdev_close+0x86/0xb0 [ 1137.760701] __fput+0x2ce/0x890 [ 1137.763990] task_work_run+0x148/0x1c0 [ 1137.767902] exit_to_usermode_loop+0x251/0x2a0 [ 1137.772491] do_syscall_64+0x538/0x620 [ 1137.776387] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1137.781578] RIP: 0033:0x7f366bd81270 [ 1137.785383] Code: 73 01 c3 48 8b 0d 38 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 59 c1 20 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ee fb ff ff 48 89 04 24 [ 1137.804383] RSP: 002b:00007ffd28262b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 1137.812102] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f366bd81270 [ 1137.819381] RDX: 000000000aba9500 RSI: 0000000000000000 RDI: 0000000000000007 [ 1137.826661] RBP: 00007f366cc3b710 R08: 000000000000004a R09: 0000000000000008 [ 1137.833969] R10: 000055da85f0eb28 R11: 0000000000000246 R12: 0000000000000000 [ 1137.841242] R13: 000055da85f0c880 R14: 0000000000000003 R15: 000000000000000e [ 1137.848513] Modules linked in: [ 1137.851733] ---[ end trace 54019378b59df411 ]--- [ 1137.856499] RIP: 0010:__lock_acquire+0x1eb/0x3ff0 [ 1137.861342] Code: 2b 29 00 00 48 81 c4 98 01 00 00 44 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 2a 00 00 49 81 3e 20 f2 66 8c 0f 84 65 ff ff [ 1137.880245] RSP: 0018:ffff88809721f910 EFLAGS: 00010006 [ 1137.885612] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1137.892889] RDX: 0000000000000022 RSI: 0000000000000000 RDI: 0000000000000001 [ 1137.900168] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 1137.907440] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 1137.914715] R13: ffff888091b142c0 R14: 0000000000000110 R15: 0000000000000001 [ 1137.921996] FS: 00007f366cc3b8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 1137.930325] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1137.936221] CR2: 00007f1e75c18718 CR3: 00000000b3286000 CR4: 00000000003406f0 [ 1137.943502] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1137.950775] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1137.958073] Kernel panic - not syncing: Fatal exception [ 1137.963663] Kernel Offset: disabled [ 1137.967304] Rebooting in 86400 seconds..