t specify at least one socket [ 487.523217] nbd: couldn't find a device at index 0 11:53:48 executing program 3: socketpair(0x10, 0x2, 0x8, 0x0) r0 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$L2TP_CMD_TUNNEL_CREATE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x74, r0, 0x10, 0x70bd29, 0x25dfdbfe, {}, [@L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0xb}, @L2TP_ATTR_SESSION_ID={0x8}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x7}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x2}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x2}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x1}, @L2TP_ATTR_DEBUG={0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x6}]}, 0x74}}, 0x6000080) 11:53:48 executing program 5: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) getsockopt$bt_BT_DEFER_SETUP(0xffffffffffffffff, 0x112, 0x7, &(0x7f0000000040), &(0x7f0000000180)=0x4) (async) bind(r0, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) (async) setsockopt$bt_BT_DEFER_SETUP(0xffffffffffffffff, 0x112, 0x7, &(0x7f00000000c0), 0x4) r1 = socket$bt_bnep(0x1f, 0x3, 0x4) getsockopt$bt_BT_DEFER_SETUP(r1, 0x112, 0x7, &(0x7f00000001c0)=0x1, &(0x7f0000000200)=0x4) (async) bind$l2tp6(0xffffffffffffffff, &(0x7f0000000080)={0xa, 0x0, 0xff, @private0={0xfc, 0x0, '\x00', 0x1}, 0x6, 0x3}, 0x20) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x4a8801, 0x0) ioctl$IOCTL_VMCI_VERSION2(r2, 0x7a7, &(0x7f0000000240)=0x90000) 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7080fb9bdf2501"], 0x7c}}, 0x0) 11:53:48 executing program 0: 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$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x58, r3, 0x400, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x101}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x20}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xe9b}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}]}, 0x58}, 0x1, 0x0, 0x0, 0x2400c041}, 0x15) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:48 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$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x24, 0x0, 0x4, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\xa4'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x24}}, 0x80) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000280)=ANY=[@ANYBLOB="14000000074f7f7d18c4ef7ba7ad17208388224d0ae1b91695437accef56d861a9e30588839e44d6ba6c6d1251e3de81eca7703c62ba81282fe02e", @ANYRES16=r3, @ANYBLOB="110b000000000013e9429f00130006aeefe8886aa118bf4eaba35696986bd8ce9f0295f1b77344c442a5c63372da206531944887c5d7ce58b00d33e11fbceccfd9b6f9c5f6d06513a49db484095918274880e4c21f066cbefc4abd553231e1c091909846627b484b844390595d2baa"], 0x14}}, 0x0) (async) r4 = semget(0x0, 0x2, 0x32a) semctl$SEM_INFO(r4, 0x2, 0x13, &(0x7f0000000180)=""/193) 11:53:48 executing program 5: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) [ 487.712712] nbd: must specify at least one socket 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7080fb9bdf2501"], 0x7c}}, 0x0) 11:53:48 executing program 3: socketpair(0x10, 0x2, 0x8, 0x0) r0 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$L2TP_CMD_TUNNEL_CREATE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x74, r0, 0x10, 0x70bd29, 0x25dfdbfe, {}, [@L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0xb}, @L2TP_ATTR_SESSION_ID={0x8}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x7}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x2}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x2}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x1}, @L2TP_ATTR_DEBUG={0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x6}]}, 0x74}}, 0x6000080) socketpair(0x10, 0x2, 0x8, 0x0) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) (async) sendmsg$L2TP_CMD_TUNNEL_CREATE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x74, r0, 0x10, 0x70bd29, 0x25dfdbfe, {}, [@L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0xb}, @L2TP_ATTR_SESSION_ID={0x8}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x7}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x2}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x2}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x1}, @L2TP_ATTR_DEBUG={0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x6}]}, 0x74}}, 0x6000080) (async) 11:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x58, r3, 0x400, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x101}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x20}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xe9b}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}]}, 0x58}, 0x1, 0x0, 0x0, 0x2400c041}, 0x15) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_NEIGHBORS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r1, 0x200, 0x70bd26, 0x25dfdbfe, {}, [@BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED={0x5, 0x2f, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x2000000}, 0x4001) [ 487.737142] nbd: couldn't find a device at index 0 11:53:48 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$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x24, 0x0, 0x4, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\xa4'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x24}}, 0x80) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000280)=ANY=[@ANYBLOB="14000000074f7f7d18c4ef7ba7ad17208388224d0ae1b91695437accef56d861a9e30588839e44d6ba6c6d1251e3de81eca7703c62ba81282fe02e", @ANYRES16=r3, @ANYBLOB="110b000000000013e9429f00130006aeefe8886aa118bf4eaba35696986bd8ce9f0295f1b77344c442a5c63372da206531944887c5d7ce58b00d33e11fbceccfd9b6f9c5f6d06513a49db484095918274880e4c21f066cbefc4abd553231e1c091909846627b484b844390595d2baa"], 0x14}}, 0x0) r4 = semget(0x0, 0x2, 0x32a) semctl$SEM_INFO(r4, 0x2, 0x13, &(0x7f0000000180)=""/193) 11:53:48 executing program 5: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7080fb9bdf2501"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7080fb9bdf2501"], 0x7c}}, 0x0) (async) 11:53:48 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_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) r3 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r3, 0x0, 0x0) semctl$IPC_INFO(r3, 0x0, 0x3, &(0x7f0000000000)=""/15) 11:53:48 executing program 3: socketpair(0x10, 0x2, 0x8, 0x0) r0 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$L2TP_CMD_TUNNEL_CREATE(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x74, r0, 0x10, 0x70bd29, 0x25dfdbfe, {}, [@L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0xb}, @L2TP_ATTR_SESSION_ID={0x8}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x7}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x2}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x2}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x1}, @L2TP_ATTR_DEBUG={0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x6}]}, 0x74}}, 0x6000080) 11:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x0) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_NEIGHBORS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r1, 0x200, 0x70bd26, 0x25dfdbfe, {}, [@BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED={0x5, 0x2f, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x2000000}, 0x4001) 11:53:48 executing program 5: socketpair(0x10, 0x2, 0x8, 0x0) r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000080), 0xffffffffffffffff) r2 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$BATADV_CMD_SET_VLAN(r2, &(0x7f0000000400)={&(0x7f0000000340), 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x1c, 0x0, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@BATADV_ATTR_VLANID={0x6, 0x28, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8014}, 0x0) sendmsg$ETHTOOL_MSG_STRSET_GET(r0, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000002c0)={&(0x7f00000000c0)={0x1c4, r1, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@ETHTOOL_A_STRSET_STRINGSETS={0x1a4, 0x2, 0x0, 0x1, [{0x24, 0x1, 0x0, 0x1, [@ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x6}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x3}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x7}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x3}]}, {0x54, 0x1, 0x0, 0x1, [@ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x1}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x8}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x2}, @ETHTOOL_A_STRINGSET_ID={0x8}, @ETHTOOL_A_STRINGSET_ID={0x8}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x1}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x3}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x2}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x6}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x5}]}, {0x3c, 0x1, 0x0, 0x1, [@ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x6}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x3}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x1}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x91c7196be7422021}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x4}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0xe}, @ETHTOOL_A_STRINGSET_ID={0x8}]}, {0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_STRINGSET_ID={0x8}]}, {0x34, 0x1, 0x0, 0x1, [@ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x6}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x4}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x92e80b9a26e1acf4}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x4}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x8}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x7}]}, {0x54, 0x1, 0x0, 0x1, [@ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x4}, @ETHTOOL_A_STRINGSET_ID={0x8}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x7}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x4}, @ETHTOOL_A_STRINGSET_ID={0x8}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x3}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x6}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x6}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x8}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x9}]}, {0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x1}]}, {0x4c, 0x1, 0x0, 0x1, [@ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x7}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x3}, @ETHTOOL_A_STRINGSET_ID={0x8}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x1}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x5}, @ETHTOOL_A_STRINGSET_ID={0x8}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x5}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x3}, @ETHTOOL_A_STRINGSET_ID={0x8, 0x1, 0x4}]}]}, @ETHTOOL_A_STRSET_HEADER={0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_INDEX={0x8}]}]}, 0x1c4}, 0x1, 0x0, 0x0, 0x4000080}, 0x8800) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000000)) [ 487.843962] nbd: must specify at least one socket [ 487.855255] nbd: couldn't find a device at index 0 11:53:48 executing program 4: r0 = syz_init_net_socket$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$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) r3 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r3, 0x0, 0x0) semctl$IPC_INFO(r3, 0x0, 0x3, &(0x7f0000000000)=""/15) syz_init_net_socket$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$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) (async) semget(0x0, 0x3, 0x3bb3a0c534927305) (async) semctl$IPC_RMID(r3, 0x0, 0x0) (async) semctl$IPC_INFO(r3, 0x0, 0x3, &(0x7f0000000000)=""/15) (async) 11:53:48 executing program 3: socketpair(0x10, 0x2, 0x8, 0x0) socket$inet(0x2, 0x5, 0x7) 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), r1) sendmsg$BATADV_CMD_TP_METER_CANCEL(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x1, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xfffffffe}, @BATADV_ATTR_TPMETER_TEST_TIME={0x8, 0xb, 0x2}, @BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x10}, 0x8000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f00000001c0), r2) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000440)={&(0x7f0000000400)=[0x0, 0x8, 0x6, 0x5], 0x4, 0x80000, 0x0, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x38, 0x0, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4044084}, 0x4000002) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x48, r4, 0x300, 0x70bd25, 0x25dfdbfd, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x7f}, @BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x101}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x1}}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x8004}, 0x4801) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, 0x0, 0x0) ioctl$DRM_IOCTL_DMA(0xffffffffffffffff, 0xc0406429, &(0x7f0000000680)={0x0, 0x5, &(0x7f0000000580)=[0xbf7, 0x4, 0x9, 0x0, 0x7], &(0x7f00000005c0)=[0x6, 0x429, 0x10000, 0xfffff001, 0x0, 0x6, 0x5, 0x7], 0x0, 0x3, 0x80000000, &(0x7f0000000600)=[0x80000000, 0xe6, 0x6], &(0x7f0000000640)=[0x9]}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_NEIGHBORS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r1, 0x200, 0x70bd26, 0x25dfdbfe, {}, [@BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED={0x5, 0x2f, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x2000000}, 0x4001) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) bind(r0, 0x0, 0x0) (async) syz_genetlink_get_family_id$batadv(&(0x7f0000000040), 0xffffffffffffffff) (async) sendmsg$BATADV_CMD_GET_NEIGHBORS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r1, 0x200, 0x70bd26, 0x25dfdbfe, {}, [@BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED={0x5, 0x2f, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x2000000}, 0x4001) (async) 11:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x0) [ 487.921487] nbd: couldn't find a device at index 0 11:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$MEDIA_REQUEST_IOC_REINIT(0xffffffffffffffff, 0x7c81, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), r1) sendmsg$BATADV_CMD_TP_METER_CANCEL(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x1, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xfffffffe}, @BATADV_ATTR_TPMETER_TEST_TIME={0x8, 0xb, 0x2}, @BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x10}, 0x8000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f00000001c0), r2) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000440)={&(0x7f0000000400)=[0x0, 0x8, 0x6, 0x5], 0x4, 0x80000, 0x0, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x38, 0x0, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4044084}, 0x4000002) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x48, r4, 0x300, 0x70bd25, 0x25dfdbfd, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x7f}, @BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x101}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x1}}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x8004}, 0x4801) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, 0x0, 0x0) ioctl$DRM_IOCTL_DMA(0xffffffffffffffff, 0xc0406429, &(0x7f0000000680)={0x0, 0x5, &(0x7f0000000580)=[0xbf7, 0x4, 0x9, 0x0, 0x7], &(0x7f00000005c0)=[0x6, 0x429, 0x10000, 0xfffff001, 0x0, 0x6, 0x5, 0x7], 0x0, 0x3, 0x80000000, &(0x7f0000000600)=[0x80000000, 0xe6, 0x6], &(0x7f0000000640)=[0x9]}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) syz_genetlink_get_family_id$batadv(&(0x7f0000000040), r1) (async) sendmsg$BATADV_CMD_TP_METER_CANCEL(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x1, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xfffffffe}, @BATADV_ATTR_TPMETER_TEST_TIME={0x8, 0xb, 0x2}, @BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x10}, 0x8000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) syz_genetlink_get_family_id$batadv(&(0x7f00000001c0), r2) (async) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000440)={&(0x7f0000000400)=[0x0, 0x8, 0x6, 0x5], 0x4, 0x80000}) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x38, 0x0, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4044084}, 0x4000002) (async) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x48, r4, 0x300, 0x70bd25, 0x25dfdbfd, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x7f}, @BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x101}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x1}}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x8004}, 0x4801) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, 0x0, 0x0) (async) ioctl$DRM_IOCTL_DMA(0xffffffffffffffff, 0xc0406429, &(0x7f0000000680)={0x0, 0x5, &(0x7f0000000580)=[0xbf7, 0x4, 0x9, 0x0, 0x7], &(0x7f00000005c0)=[0x6, 0x429, 0x10000, 0xfffff001, 0x0, 0x6, 0x5, 0x7], 0x0, 0x3, 0x80000000, &(0x7f0000000600)=[0x80000000, 0xe6, 0x6], &(0x7f0000000640)=[0x9]}) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) 11:53:48 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_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) r3 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r3, 0x0, 0x0) semctl$IPC_INFO(r3, 0x0, 0x3, &(0x7f0000000000)=""/15) 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_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) (async) semget(0x0, 0x3, 0x3bb3a0c534927305) (async) semctl$IPC_RMID(r3, 0x0, 0x0) (async) semctl$IPC_INFO(r3, 0x0, 0x3, &(0x7f0000000000)=""/15) (async) [ 487.994450] nbd: couldn't find a device at index 0 11:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="efd1c5de404940b1346181c87174e388b5ce2cd4a92ab4d4044f83", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) r0 = socket$l2tp(0x2, 0x2, 0x73) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x6a000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e24}, @L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0x9}, @L2TP_ATTR_CONN_ID={0x8}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x4}, @L2TP_ATTR_UDP_CSUM={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0\x00'}]}, 0x60}, 0x1, 0x0, 0x0, 0x20008000}, 0x200080d0) bind(r0, 0x0, 0x0) 11:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x0) (async) 11:53:48 executing program 3: socketpair(0x10, 0x2, 0x8, 0x0) (async) socket$inet(0x2, 0x5, 0x7) 11:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r1, 0xb11}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r1, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xf800000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xf49}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x20000000) ioctl$TUNGETDEVNETNS(0xffffffffffffffff, 0x54e3, 0x0) 11:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="efd1c5de404940b1346181c87174e388b5ce2cd4a92ab4d4044f83", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) r0 = socket$l2tp(0x2, 0x2, 0x73) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x6a000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e24}, @L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0x9}, @L2TP_ATTR_CONN_ID={0x8}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x4}, @L2TP_ATTR_UDP_CSUM={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0\x00'}]}, 0x60}, 0x1, 0x0, 0x0, 0x20008000}, 0x200080d0) (async, rerun: 32) bind(r0, 0x0, 0x0) (rerun: 32) 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) r3 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), r1) sendmsg$BATADV_CMD_TP_METER_CANCEL(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x1, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xfffffffe}, @BATADV_ATTR_TPMETER_TEST_TIME={0x8, 0xb, 0x2}, @BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x10}, 0x8000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f00000001c0), r2) (async, rerun: 32) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000440)={&(0x7f0000000400)=[0x0, 0x8, 0x6, 0x5], 0x4, 0x80000, 0x0, 0xffffffffffffffff}) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x38, 0x0, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4044084}, 0x4000002) (async, rerun: 32) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000380)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x48, r4, 0x300, 0x70bd25, 0x25dfdbfd, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x7f}, @BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x101}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x1}}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x8004}, 0x4801) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(0xffffffffffffffff, 0x0, 0x0) ioctl$DRM_IOCTL_DMA(0xffffffffffffffff, 0xc0406429, &(0x7f0000000680)={0x0, 0x5, &(0x7f0000000580)=[0xbf7, 0x4, 0x9, 0x0, 0x7], &(0x7f00000005c0)=[0x6, 0x429, 0x10000, 0xfffff001, 0x0, 0x6, 0x5, 0x7], 0x0, 0x3, 0x80000000, &(0x7f0000000600)=[0x80000000, 0xe6, 0x6], &(0x7f0000000640)=[0x9]}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) [ 488.114216] nbd: couldn't find a device at index 0 11:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x20, r1, 0x400, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x40009) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}, 0x1, 0x0, 0x0, 0x400c890}, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x6c2e4d176ff98636, 0x0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(r8, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x48, 0x1406, 0x200, 0x70bd2d, 0x25dfdbfc, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x80}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYRESHEX=0x0, @ANYRESHEX=r5, @ANYRESOCT=r0, @ANYRES64=r7], 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x40048d0) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) r0 = socket$l2tp(0x2, 0x2, 0x73) (async, rerun: 32) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 32) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x6a000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e24}, @L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0x9}, @L2TP_ATTR_CONN_ID={0x8}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x4}, @L2TP_ATTR_UDP_CSUM={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0\x00'}]}, 0x60}, 0x1, 0x0, 0x0, 0x20008000}, 0x200080d0) bind(r0, 0x0, 0x0) 11:53:48 executing program 3: socketpair(0x10, 0x2, 0x8, 0x0) (async) socket$inet(0x2, 0x5, 0x7) [ 488.140414] nbd: couldn't find a device at index 0 11:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r1, 0xb11}, 0x14}}, 0x0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r1, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xf800000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xf49}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x20000000) (async) ioctl$TUNGETDEVNETNS(0xffffffffffffffff, 0x54e3, 0x0) 11:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="efd1c5de404940b1346181c87174e388b5ce2cd4a92ab4d4044f83", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = semget(0x0, 0x4, 0x4) semctl$GETALL(r1, 0x0, 0xd, &(0x7f0000000380)=""/230) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0xc0200010}, 0xc, &(0x7f0000000080)={&(0x7f0000000480)={0xd0, 0x0, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x0, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa5, 0xa, '\xd5_&-\x8b$.]!\xda] H\xc1\x02K\x8e\x9a\xc2\b\x94\xc0\xa5m-=\xc4(\xde\xa9\xa4\x1b\v\x96J\x82\x82Zb6\b\x02F\x8e\xc3;\xb8)\a \x0f\x8c\x1f\xb0\xf4y\xa9\x850R\xb0UX\xb1\xb1}\x8d\x9b\xec\xe6\n\xcbA\xd9l\x96\xff\x02\xba\x83?\xd5}vP.t6\x93[u!~\x00\x84ve\xe4\xe1\xcf\xb2Fv\xce,\xfe\x19\xea~\x1b\xac>w\xd5VF\x17\x81Q\xc5K4\xb2\x15\x96\x03\x01\xe1\xedn\x1e;,\xe3\xc1\xdc?\xb6\xe9\xf5\x0f4S\x8b \x19I\xd6\x99\x8dw\xb7\xb3\x95+]\x83\xb78r\xef'}]}, 0xd0}, 0x1, 0x0, 0x0, 0x40}, 0x2000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0xb31282, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socket$l2tp6(0xa, 0x2, 0x73) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRESOCT=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x20000800) 11:53:48 executing program 3: socketpair(0x2c, 0x2, 0x8, 0x0) 11:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x20, r1, 0x400, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x40009) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}, 0x1, 0x0, 0x0, 0x400c890}, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x6c2e4d176ff98636, 0x0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(r8, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x48, 0x1406, 0x200, 0x70bd2d, 0x25dfdbfc, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x80}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYRESHEX=0x0, @ANYRESHEX=r5, @ANYRESOCT=r0, @ANYRES64=r7], 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x40048d0) 11:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r1, 0xb11}, 0x14}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r1, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xf800000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xf49}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x20000000) ioctl$TUNGETDEVNETNS(0xffffffffffffffff, 0x54e3, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r1, 0xb11}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r1, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xf800000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xf49}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x20000000) (async) ioctl$TUNGETDEVNETNS(0xffffffffffffffff, 0x54e3, 0x0) (async) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) write$6lowpan_control(0xffffffffffffffff, &(0x7f0000000180)='connect aa:aa:aa:aa:aa:10 2', 0x1b) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r2, 0x8, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '$(@'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x50}, 0x8001) bind(r0, 0x0, 0x0) 11:53:48 executing program 5: socketpair$nbd(0x1, 0x1, 0x0, 0x0) sendmsg$L2TP_CMD_NOOP(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x24, 0x0, 0x8, 0x70bd29, 0x25dfdbfb, {}, [@L2TP_ATTR_VLAN_ID={0x6, 0xe, 0x80}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6}]}, 0x24}, 0x1, 0x0, 0x0, 0x355e244601e238ae}, 0x1) 11:53:48 executing program 3: socketpair(0x2c, 0x2, 0x8, 0x0) socketpair(0x2c, 0x2, 0x8, 0x0) (async) 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = semget(0x0, 0x4, 0x4) semctl$GETALL(r1, 0x0, 0xd, &(0x7f0000000380)=""/230) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0xc0200010}, 0xc, &(0x7f0000000080)={&(0x7f0000000480)={0xd0, 0x0, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x0, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa5, 0xa, '\xd5_&-\x8b$.]!\xda] H\xc1\x02K\x8e\x9a\xc2\b\x94\xc0\xa5m-=\xc4(\xde\xa9\xa4\x1b\v\x96J\x82\x82Zb6\b\x02F\x8e\xc3;\xb8)\a \x0f\x8c\x1f\xb0\xf4y\xa9\x850R\xb0UX\xb1\xb1}\x8d\x9b\xec\xe6\n\xcbA\xd9l\x96\xff\x02\xba\x83?\xd5}vP.t6\x93[u!~\x00\x84ve\xe4\xe1\xcf\xb2Fv\xce,\xfe\x19\xea~\x1b\xac>w\xd5VF\x17\x81Q\xc5K4\xb2\x15\x96\x03\x01\xe1\xedn\x1e;,\xe3\xc1\xdc?\xb6\xe9\xf5\x0f4S\x8b \x19I\xd6\x99\x8dw\xb7\xb3\x95+]\x83\xb78r\xef'}]}, 0xd0}, 0x1, 0x0, 0x0, 0x40}, 0x2000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0xb31282, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socket$l2tp6(0xa, 0x2, 0x73) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRESOCT=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x20000800) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) write$6lowpan_control(0xffffffffffffffff, &(0x7f0000000180)='connect aa:aa:aa:aa:aa:10 2', 0x1b) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r2, 0x8, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '$(@'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x50}, 0x8001) (async) bind(r0, 0x0, 0x0) 11:53:48 executing program 4: 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$nbd(&(0x7f0000000100), r1) socketpair(0x1a, 0x2, 0x46, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, 0x0, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000000}, 0x800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="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"], 0x14}}, 0x0) 11:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x20, r1, 0x400, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x40009) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}, 0x1, 0x0, 0x0, 0x400c890}, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x6c2e4d176ff98636, 0x0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(r8, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x48, 0x1406, 0x200, 0x70bd2d, 0x25dfdbfc, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x80}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYRESHEX=0x0, @ANYRESHEX=r5, @ANYRESOCT=r0, @ANYRES64=r7], 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x40048d0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x20, r1, 0x400, 0x70bd2d, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x40009) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}, 0x1, 0x0, 0x0, 0x400c890}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x6c2e4d176ff98636, 0x0) (async) sendmsg$RDMA_NLDEV_CMD_SYS_GET(r8, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x48, 0x1406, 0x200, 0x70bd2d, 0x25dfdbfc, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x80}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYRESHEX=0x0, @ANYRESHEX=r5, @ANYRESOCT=r0, @ANYRES64=r7], 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x40048d0) (async) 11:53:48 executing program 5: socketpair$nbd(0x1, 0x1, 0x0, 0x0) sendmsg$L2TP_CMD_NOOP(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x24, 0x0, 0x8, 0x70bd29, 0x25dfdbfb, {}, [@L2TP_ATTR_VLAN_ID={0x6, 0xe, 0x80}, @L2TP_ATTR_FD={0x8, 0x17, @l2tp6}]}, 0x24}, 0x1, 0x0, 0x0, 0x355e244601e238ae}, 0x1) 11:53:48 executing program 3: socketpair(0x2c, 0x2, 0x8, 0x0) 11:53:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = semget(0x0, 0x4, 0x4) semctl$GETALL(r1, 0x0, 0xd, &(0x7f0000000380)=""/230) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0xc0200010}, 0xc, &(0x7f0000000080)={&(0x7f0000000480)={0xd0, 0x0, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x0, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa5, 0xa, '\xd5_&-\x8b$.]!\xda] H\xc1\x02K\x8e\x9a\xc2\b\x94\xc0\xa5m-=\xc4(\xde\xa9\xa4\x1b\v\x96J\x82\x82Zb6\b\x02F\x8e\xc3;\xb8)\a \x0f\x8c\x1f\xb0\xf4y\xa9\x850R\xb0UX\xb1\xb1}\x8d\x9b\xec\xe6\n\xcbA\xd9l\x96\xff\x02\xba\x83?\xd5}vP.t6\x93[u!~\x00\x84ve\xe4\xe1\xcf\xb2Fv\xce,\xfe\x19\xea~\x1b\xac>w\xd5VF\x17\x81Q\xc5K4\xb2\x15\x96\x03\x01\xe1\xedn\x1e;,\xe3\xc1\xdc?\xb6\xe9\xf5\x0f4S\x8b \x19I\xd6\x99\x8dw\xb7\xb3\x95+]\x83\xb78r\xef'}]}, 0xd0}, 0x1, 0x0, 0x0, 0x40}, 0x2000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0xb31282, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socket$l2tp6(0xa, 0x2, 0x73) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRESOCT=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x20000800) 11:53:48 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) write$6lowpan_control(0xffffffffffffffff, &(0x7f0000000180)='connect aa:aa:aa:aa:aa:10 2', 0x1b) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r2, 0x8, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '$(@'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x50}, 0x8001) bind(r0, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) write$6lowpan_control(0xffffffffffffffff, &(0x7f0000000180)='connect aa:aa:aa:aa:aa:10 2', 0x1b) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r2, 0x8, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '$(@'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x50}, 0x8001) (async) bind(r0, 0x0, 0x0) (async) 11:53:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) socketpair(0x1a, 0x2, 0x46, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, 0x0, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000000}, 0x800) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="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"], 0x14}}, 0x0) 11:53:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) socketpair(0x1a, 0x2, 0x46, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, 0x0, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000000}, 0x800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="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"], 0x14}}, 0x0) 11:53:48 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$nbd(&(0x7f0000000100), r1) socketpair(0x1a, 0x2, 0x46, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, 0x0, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000000}, 0x800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="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"], 0x14}}, 0x0) 11:53:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x98, r1, 0x20, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x10000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x98}, 0x1, 0x0, 0x0, 0x100}, 0x8d4) 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) socketpair(0x10, 0xa, 0x6, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$BATADV_CMD_SET_MESH(r1, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0xa009042}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, 0x0, 0x100, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_TPMETER_TEST_TIME={0x8, 0xb, 0x101}, @BATADV_ATTR_ISOLATION_MARK={0x8}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x1}, 0x800) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x1406, 0x100, 0x70bd2a, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) r2 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r2, 0x0, 0x0) semctl$SEM_STAT(r2, 0x2, 0x12, &(0x7f00000001c0)=""/144) 11:53:49 executing program 5: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$batadv(&(0x7f0000001080), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_DAT_CACHE(r1, &(0x7f0000001140)={0x0, 0x0, &(0x7f0000001100)={&(0x7f0000001180)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB='{'], 0x20}}, 0x0) sendmsg$BATADV_CMD_GET_TRANSTABLE_LOCAL(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x1c, r2, 0x800, 0x70bd2a, 0x25dfdbfd, {}, [@BATADV_ATTR_GW_MODE={0x5, 0x33, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8815}, 0x400c814) r3 = syz_init_net_socket$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$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r5, 0xb11}, 0x14}}, 0x0) 11:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) socketpair(0x1a, 0x2, 0x46, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, 0x0, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x20000000}, 0x800) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="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"], 0x14}}, 0x0) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) ioctl$EVIOCSCLOCKID(r1, 0x400445a0, &(0x7f0000000000)=0x1) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x98, r1, 0x20, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x10000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x98}, 0x1, 0x0, 0x0, 0x100}, 0x8d4) [ 488.537810] nbd: couldn't find a device at index 0 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) (async) socketpair(0x10, 0xa, 0x6, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$BATADV_CMD_SET_MESH(r1, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0xa009042}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, 0x0, 0x100, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_TPMETER_TEST_TIME={0x8, 0xb, 0x101}, @BATADV_ATTR_ISOLATION_MARK={0x8}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x1}, 0x800) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 64) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 64) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) ioctl$EVIOCSCLOCKID(r1, 0x400445a0, &(0x7f0000000000)=0x1) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000140)={0x7c, r1, 0xb11, 0x2, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x32e}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x44000000}, 0x44000) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x1406, 0x100, 0x70bd2a, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) r2 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r2, 0x0, 0x0) semctl$SEM_STAT(r2, 0x2, 0x12, &(0x7f00000001c0)=""/144) 11:53:49 executing program 5: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) bind(r1, &(0x7f0000000000)=@l2tp6={0xa, 0x0, 0x0, @dev={0xfe, 0x80, '\x00', 0x29}, 0x7fffffff, 0x1}, 0x80) bind(r0, 0x0, 0x0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$batadv(&(0x7f0000001080), 0xffffffffffffffff) ioctl$TUNSETIFINDEX(r1, 0x400454da, &(0x7f00000001c0)) sendmsg$BATADV_CMD_GET_DAT_CACHE(r3, &(0x7f0000001140)={0x0, 0x0, &(0x7f0000001100)={&(0x7f0000001180)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB='{'], 0x20}}, 0x0) sendmsg$BATADV_CMD_TP_METER_CANCEL(r2, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x24, r4, 0x4, 0x70bd2b, 0x25dfdbfd, {}, [@BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x2}]}, 0x24}, 0x1, 0x0, 0x0, 0x4000000}, 0x4c002) [ 488.587190] nbd: must specify a device to reconfigure 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) socketpair(0x10, 0xa, 0x6, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$BATADV_CMD_SET_MESH(r1, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0xa009042}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, 0x0, 0x100, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_TPMETER_TEST_TIME={0x8, 0xb, 0x101}, @BATADV_ATTR_ISOLATION_MARK={0x8}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x1}, 0x800) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) bind(r0, 0x0, 0x0) (async) socketpair(0x10, 0xa, 0x6, &(0x7f0000000000)) (async) sendmsg$BATADV_CMD_SET_MESH(r1, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0xa009042}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, 0x0, 0x100, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_TPMETER_TEST_TIME={0x8, 0xb, 0x101}, @BATADV_ATTR_ISOLATION_MARK={0x8}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x1}, 0x800) (async) 11:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x98, r1, 0x20, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x10000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x98}, 0x1, 0x0, 0x0, 0x100}, 0x8d4) [ 488.633757] nbd: couldn't find a device at index 0 11:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000140)={0x7c, r1, 0xb11, 0x2, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x32e}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x44000000}, 0x44000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000140)={0x7c, r1, 0xb11, 0x2, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x32e}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x44000000}, 0x44000) (async) [ 488.672809] nbd: must specify a device to reconfigure 11:53:49 executing program 5: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) bind(r1, &(0x7f0000000000)=@l2tp6={0xa, 0x0, 0x0, @dev={0xfe, 0x80, '\x00', 0x29}, 0x7fffffff, 0x1}, 0x80) bind(r0, 0x0, 0x0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$batadv(&(0x7f0000001080), 0xffffffffffffffff) ioctl$TUNSETIFINDEX(r1, 0x400454da, &(0x7f00000001c0)) sendmsg$BATADV_CMD_GET_DAT_CACHE(r3, &(0x7f0000001140)={0x0, 0x0, &(0x7f0000001100)={&(0x7f0000001180)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r4, @ANYBLOB='{'], 0x20}}, 0x0) sendmsg$BATADV_CMD_TP_METER_CANCEL(r2, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x24, r4, 0x4, 0x70bd2b, 0x25dfdbfd, {}, [@BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x2}]}, 0x24}, 0x1, 0x0, 0x0, 0x4000000}, 0x4c002) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) ioctl$EVIOCSCLOCKID(r1, 0x400445a0, &(0x7f0000000000)=0x1) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x1406, 0x100, 0x70bd2a, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) r2 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r2, 0x0, 0x0) semctl$SEM_STAT(r2, 0x2, 0x12, &(0x7f00000001c0)=""/144) [ 488.714866] nbd: couldn't find a device at index 0 11:53:49 executing program 1: ioctl$sock_ipv6_tunnel_SIOCGETPRL(0xffffffffffffffff, 0x89f4, &(0x7f0000000040)={'ip6_vti0\x00', &(0x7f0000000100)={'syztnl0\x00', 0x0, 0x29, 0x60, 0x1, 0x1000ffff, 0x32, @ipv4={'\x00', '\xff\xff', @rand_addr=0x64010100}, @mcast1, 0x80, 0xff00, 0xff, 0xf7}}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_ipv6_tunnel_SIOCADD6RD(0xffffffffffffffff, 0x89f9, &(0x7f00000000c0)={'syztnl0\x00', &(0x7f0000000180)={'syztnl2\x00', r0, 0x2f, 0x6, 0x9, 0x4, 0x1, @private2, @local, 0x20, 0x10, 0xff, 0x73a}}) ioctl$sock_ipv6_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, &(0x7f0000000280)={'syztnl2\x00', &(0x7f0000000200)={'ip6gre0\x00', r2, 0x2b, 0x3, 0x8, 0x6, 0x30, @loopback, @ipv4={'\x00', '\xff\xff', @private=0xa010100}, 0x8000, 0x7800, 0x8, 0x166b}}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) bind(r1, 0x0, 0x0) 11:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000140)={0x7c, r1, 0xb11, 0x2, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x32e}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x44000000}, 0x44000) 11:53:49 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$nbd(&(0x7f0000000300), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000003c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x20, r1, 0x400, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x20}, 0x1, 0x0, 0x0, 0x8080}, 0x1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000180)={&(0x7f0000000580)=ANY=[@ANYRESHEX, @ANYRES64=r3, @ANYRES16], 0x34}, 0x1, 0x0, 0x0, 0x51}, 0x20004) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x50, r1, 0x100, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xf}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x103}]}, 0x50}, 0x1, 0x0, 0x0, 0x62c99e15966950d0}, 0x8841) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x1) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES32=r0, @ANYRESHEX=r4, @ANYRES16=r4, @ANYRES64=r6], 0x1c}, 0x1, 0x0, 0x0, 0x240080c5}, 0xc044) 11:53:49 executing program 1: ioctl$sock_ipv6_tunnel_SIOCGETPRL(0xffffffffffffffff, 0x89f4, &(0x7f0000000040)={'ip6_vti0\x00', &(0x7f0000000100)={'syztnl0\x00', 0x0, 0x29, 0x60, 0x1, 0x1000ffff, 0x32, @ipv4={'\x00', '\xff\xff', @rand_addr=0x64010100}, @mcast1, 0x80, 0xff00, 0xff, 0xf7}}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_ipv6_tunnel_SIOCADD6RD(0xffffffffffffffff, 0x89f9, &(0x7f00000000c0)={'syztnl0\x00', &(0x7f0000000180)={'syztnl2\x00', r0, 0x2f, 0x6, 0x9, 0x4, 0x1, @private2, @local, 0x20, 0x10, 0xff, 0x73a}}) ioctl$sock_ipv6_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, &(0x7f0000000280)={'syztnl2\x00', &(0x7f0000000200)={'ip6gre0\x00', r2, 0x2b, 0x3, 0x8, 0x6, 0x30, @loopback, @ipv4={'\x00', '\xff\xff', @private=0xa010100}, 0x8000, 0x7800, 0x8, 0x166b}}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) (async) bind(r1, 0x0, 0x0) 11:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000140)={0x7c, r1, 0xb11, 0x2, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x32e}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x44000000}, 0x44000) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x1406, 0x100, 0x70bd2a, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) r2 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r2, 0x0, 0x0) [ 488.774644] nbd: must specify a device to reconfigure 11:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, r2, 0x300, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4000081}, 0x8001) 11:53:49 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$nbd(&(0x7f0000000300), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000003c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x20, r1, 0x400, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x20}, 0x1, 0x0, 0x0, 0x8080}, 0x1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000180)={&(0x7f0000000580)=ANY=[@ANYRESHEX, @ANYRES64=r3, @ANYRES16], 0x34}, 0x1, 0x0, 0x0, 0x51}, 0x20004) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x50, r1, 0x100, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xf}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x103}]}, 0x50}, 0x1, 0x0, 0x0, 0x62c99e15966950d0}, 0x8841) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x1) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES32=r0, @ANYRESHEX=r4, @ANYRES16=r4, @ANYRES64=r6], 0x1c}, 0x1, 0x0, 0x0, 0x240080c5}, 0xc044) 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$nbd(&(0x7f0000000300), r0) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000003c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x20, r1, 0x400, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x20}, 0x1, 0x0, 0x0, 0x8080}, 0x1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000180)={&(0x7f0000000580)=ANY=[@ANYRESHEX, @ANYRES64=r3, @ANYRES16], 0x34}, 0x1, 0x0, 0x0, 0x51}, 0x20004) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x50, r1, 0x100, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xf}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x103}]}, 0x50}, 0x1, 0x0, 0x0, 0x62c99e15966950d0}, 0x8841) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES32=r0, @ANYRESHEX=r4, @ANYRES16=r4, @ANYRES64=r6], 0x1c}, 0x1, 0x0, 0x0, 0x240080c5}, 0xc044) (async) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) ioctl$EVIOCSREP(r3, 0x40084503, &(0x7f0000000100)=[0xffff, 0x1]) getsockname$l2tp6(r2, &(0x7f0000000000)={0xa, 0x0, 0x0, @initdev}, &(0x7f0000000040)=0x20) 11:53:49 executing program 1: ioctl$sock_ipv6_tunnel_SIOCGETPRL(0xffffffffffffffff, 0x89f4, &(0x7f0000000040)={'ip6_vti0\x00', &(0x7f0000000100)={'syztnl0\x00', 0x0, 0x29, 0x60, 0x1, 0x1000ffff, 0x32, @ipv4={'\x00', '\xff\xff', @rand_addr=0x64010100}, @mcast1, 0x80, 0xff00, 0xff, 0xf7}}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_ipv6_tunnel_SIOCADD6RD(0xffffffffffffffff, 0x89f9, &(0x7f00000000c0)={'syztnl0\x00', &(0x7f0000000180)={'syztnl2\x00', r0, 0x2f, 0x6, 0x9, 0x4, 0x1, @private2, @local, 0x20, 0x10, 0xff, 0x73a}}) ioctl$sock_ipv6_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, &(0x7f0000000280)={'syztnl2\x00', &(0x7f0000000200)={'ip6gre0\x00', r2, 0x2b, 0x3, 0x8, 0x6, 0x30, @loopback, @ipv4={'\x00', '\xff\xff', @private=0xa010100}, 0x8000, 0x7800, 0x8, 0x166b}}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) bind(r1, 0x0, 0x0) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x1406, 0x100, 0x70bd2a, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) semget(0x0, 0x3, 0x3bb3a0c534927305) 11:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$BATADV_CMD_GET_TRANSTABLE_LOCAL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x5c, 0x0, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0xff}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x4}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5, 0x30, 0x1}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x5}, @BATADV_ATTR_HOP_PENALTY={0x5, 0x35, 0x3f}, @BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x5}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}]}, 0x5c}, 0x1, 0x0, 0x0, 0x20000000}, 0x800) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="144000007539774f25feebac890d9e6aaedf007faf79b10f54b35b84de08f85fca45567cfe2b458565c1ca45bce4eefdf1c7df48fb55e4cb5aa18b3ccb68435b8392977e8bd869a19f04f44c18ede150ac11a3d4ac9d9c6bc592711d5c3bd942", @ANYRES16=r2, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) sendmsg$RDMA_NLDEV_CMD_GET_CHARDEV(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000240), 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x54, 0x140f, 0x20, 0x70bd2b, 0x25dfdbfd, "", [@RDMA_NLDEV_ATTR_CHARDEV_TYPE={0x11, 0x45, 'ib_multicast\x00'}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_PORT_INDEX={0x8, 0x3, 0x2}]}, 0x54}}, 0x8810) 11:53:49 executing program 5: ioctl$DRM_IOCTL_NEW_CTX(0xffffffffffffffff, 0x40086425, &(0x7f0000000000)={0x0, 0x1}) 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$nbd(&(0x7f0000000080), r1) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000240)={&(0x7f0000000200)=[0x51f6], 0x1, 0x180800, 0x0, 0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000280), 0x101000, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) r10 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r10, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000003c0)={&(0x7f0000000440)={0xa4, r2, 0x2, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xc77}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xb27f}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8, 0x1, r11}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x11}, 0x20000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)={0x20, r3, 0x4, 0x78bd26, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x109}]}, 0x20}}, 0x0) ioctl$DRM_IOCTL_SWITCH_CTX(0xffffffffffffffff, 0x40086424, &(0x7f0000000140)={0x0, 0x2}) [ 488.870402] nbd: couldn't find a device at index 5 [ 488.887066] nbd: must specify a device to reconfigure 11:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r0) (rerun: 64) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000003c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x20, r1, 0x400, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x20}, 0x1, 0x0, 0x0, 0x8080}, 0x1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000180)={&(0x7f0000000580)=ANY=[@ANYRESHEX, @ANYRES64=r3, @ANYRES16], 0x34}, 0x1, 0x0, 0x0, 0x51}, 0x20004) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x50, r1, 0x100, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xf}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x103}]}, 0x50}, 0x1, 0x0, 0x0, 0x62c99e15966950d0}, 0x8841) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000540), 0xffffffffffffffff) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x1) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES32=r0, @ANYRESHEX=r4, @ANYRES16=r4, @ANYRES64=r6], 0x1c}, 0x1, 0x0, 0x0, 0x240080c5}, 0xc044) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) ioctl$EVIOCSREP(r3, 0x40084503, &(0x7f0000000100)=[0xffff, 0x1]) getsockname$l2tp6(r2, &(0x7f0000000000)={0xa, 0x0, 0x0, @initdev}, &(0x7f0000000040)=0x20) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) openat$vsock(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) (async) ioctl$EVIOCSREP(r3, 0x40084503, &(0x7f0000000100)=[0xffff, 0x1]) (async) getsockname$l2tp6(r2, &(0x7f0000000000)={0xa, 0x0, 0x0, @initdev}, &(0x7f0000000040)=0x20) (async) [ 488.951359] Unknown ioctl 1074283779 11:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) recvfrom$l2tp6(0xffffffffffffffff, &(0x7f0000000000)=""/41, 0x29, 0x100, &(0x7f0000000040)={0xa, 0x0, 0x0, @remote}, 0x20) 11:53:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$BATADV_CMD_GET_TRANSTABLE_LOCAL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x5c, 0x0, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0xff}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x4}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5, 0x30, 0x1}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x5}, @BATADV_ATTR_HOP_PENALTY={0x5, 0x35, 0x3f}, @BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x5}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}]}, 0x5c}, 0x1, 0x0, 0x0, 0x20000000}, 0x800) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="144000007539774f25feebac890d9e6aaedf007faf79b10f54b35b84de08f85fca45567cfe2b458565c1ca45bce4eefdf1c7df48fb55e4cb5aa18b3ccb68435b8392977e8bd869a19f04f44c18ede150ac11a3d4ac9d9c6bc592711d5c3bd942", @ANYRES16=r2, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) sendmsg$RDMA_NLDEV_CMD_GET_CHARDEV(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000240), 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x54, 0x140f, 0x20, 0x70bd2b, 0x25dfdbfd, "", [@RDMA_NLDEV_ATTR_CHARDEV_TYPE={0x11, 0x45, 'ib_multicast\x00'}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_PORT_INDEX={0x8, 0x3, 0x2}]}, 0x54}}, 0x8810) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x1406, 0x100, 0x70bd2a, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x4040) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 488.987002] nbd: must specify a device to reconfigure 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) (async) recvfrom$l2tp6(0xffffffffffffffff, &(0x7f0000000000)=""/41, 0x29, 0x100, &(0x7f0000000040)={0xa, 0x0, 0x0, @remote}, 0x20) 11:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000600), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, 0x0, 0x200, 0x70bd29, 0x25dfdbfd, {}, [@BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0xe6}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x840) socket$nl_generic(0x10, 0x3, 0x10) [ 489.044930] Unknown ioctl 1074283779 11:53:49 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$BATADV_CMD_GET_TRANSTABLE_LOCAL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x5c, 0x0, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0xff}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x4}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5, 0x30, 0x1}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x5}, @BATADV_ATTR_HOP_PENALTY={0x5, 0x35, 0x3f}, @BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x5}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}]}, 0x5c}, 0x1, 0x0, 0x0, 0x20000000}, 0x800) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="144000007539774f25feebac890d9e6aaedf007faf79b10f54b35b84de08f85fca45567cfe2b458565c1ca45bce4eefdf1c7df48fb55e4cb5aa18b3ccb68435b8392977e8bd869a19f04f44c18ede150ac11a3d4ac9d9c6bc592711d5c3bd942", @ANYRES16=r2, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) (async) sendmsg$RDMA_NLDEV_CMD_GET_CHARDEV(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000240), 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x54, 0x140f, 0x20, 0x70bd2b, 0x25dfdbfd, "", [@RDMA_NLDEV_ATTR_CHARDEV_TYPE={0x11, 0x45, 'ib_multicast\x00'}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_PORT_INDEX={0x8, 0x3, 0x2}]}, 0x54}}, 0x8810) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 64) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 64) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) ioctl$EVIOCSREP(r3, 0x40084503, &(0x7f0000000100)=[0xffff, 0x1]) getsockname$l2tp6(r2, &(0x7f0000000000)={0xa, 0x0, 0x0, @initdev}, &(0x7f0000000040)=0x20) [ 489.086072] nbd: must specify a device to reconfigure 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) (async) recvfrom$l2tp6(0xffffffffffffffff, &(0x7f0000000000)=""/41, 0x29, 0x100, &(0x7f0000000040)={0xa, 0x0, 0x0, @remote}, 0x20) [ 489.148458] nbd: couldn't find a device at index 5 11:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r0) socketpair(0x27, 0x1, 0x5ce73162, &(0x7f0000000340)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x58, r2, 0x8, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\xaa\xaa\xaa\xaa\xaa'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '/-'}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x58}, 0x1, 0x0, 0x0, 0x8004}, 0x800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), 0xffffffffffffffff) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000080)={'batadv0\x00', 0x0}) sendmsg$BATADV_CMD_GET_NEIGHBORS(r4, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r5, 0x400, 0x70bd26, 0x1, {}, [@BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x8}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r6}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5, 0x30, 0x1}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5, 0x29, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000000}, 0x10) 11:53:49 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$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000600), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, 0x0, 0x200, 0x70bd29, 0x25dfdbfd, {}, [@BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0xe6}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x840) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$batadv(&(0x7f0000001080), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_DAT_CACHE(r2, &(0x7f0000001140)={0x0, 0x0, &(0x7f0000001100)={&(0x7f0000001180)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r3, @ANYBLOB='{'], 0x20}}, 0x0) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x6}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x1}, @BATADV_ATTR_ORIG_INTERVAL={0x8, 0x39, 0x9}]}, 0x2c}, 0x1, 0x0, 0x0, 0x80}, 0x20008800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) connect$l2tp6(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x0, 0x8000, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0x0, 0x1}, 0x20) sendmsg$L2TP_CMD_TUNNEL_DELETE(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r1, 0x2, 0x70bd26, 0x25dfdbfc, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @multicast1}, @L2TP_ATTR_FD={0x8, 0x17, @udp6}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) semctl$GETPID(0x0, 0x3, 0xb, &(0x7f0000000380)=""/4096) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="3f00fd000a9afebff43ef90000f92aca5e4de69c97282acb87a22d219b9b366d68d85e6f6fb455ccb4896cefef221f02e800d3b75759081b54a98306027098ae2bd4181eaa5dcc67d38d3087b5859fbbefa13b9108203e1ef74d962aec6bf5660045c6c8e4cb67a053c6b92c340fdc4a8304967c479adf48f8fa7d3856ce6cbb51998922901796ba6547c686b3719e5b1f17a6e906d277c614e9359f9718a8404a4f436ef7dc34d3904b2401886cfbd4caff62956ccb917850403ecc9ab55561d5e863bb6e902a617a7eefceb283a833b5060a6905729f00bd33433d8844f283", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 489.191364] nbd: must specify a device to reconfigure [ 489.199948] Unknown ioctl 1074283779 11:53:49 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$nbd(&(0x7f0000000080), r1) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) (async, rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) semctl$GETPID(0x0, 0x3, 0xb, &(0x7f0000000380)=""/4096) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async, rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="3f00fd000a9afebff43ef90000f92aca5e4de69c97282acb87a22d219b9b366d68d85e6f6fb455ccb4896cefef221f02e800d3b75759081b54a98306027098ae2bd4181eaa5dcc67d38d3087b5859fbbefa13b9108203e1ef74d962aec6bf5660045c6c8e4cb67a053c6b92c340fdc4a8304967c479adf48f8fa7d3856ce6cbb51998922901796ba6547c686b3719e5b1f17a6e906d277c614e9359f9718a8404a4f436ef7dc34d3904b2401886cfbd4caff62956ccb917850403ecc9ab55561d5e863bb6e902a617a7eefceb283a833b5060a6905729f00bd33433d8844f283", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r0) socketpair(0x27, 0x1, 0x5ce73162, &(0x7f0000000340)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x58, r2, 0x8, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\xaa\xaa\xaa\xaa\xaa'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '/-'}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x58}, 0x1, 0x0, 0x0, 0x8004}, 0x800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), 0xffffffffffffffff) (async) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000080)={'batadv0\x00', 0x0}) sendmsg$BATADV_CMD_GET_NEIGHBORS(r4, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r5, 0x400, 0x70bd26, 0x1, {}, [@BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x8}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r6}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5, 0x30, 0x1}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5, 0x29, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000000}, 0x10) [ 489.247639] nbd: couldn't find a device at index 5 [ 489.265374] nbd: couldn't find a device at index 0 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) connect$l2tp6(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x0, 0x8000, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0x0, 0x1}, 0x20) (async) sendmsg$L2TP_CMD_TUNNEL_DELETE(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r1, 0x2, 0x70bd26, 0x25dfdbfc, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @multicast1}, @L2TP_ATTR_FD={0x8, 0x17, @udp6}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$EVIOCGABS20(r1, 0x80184560, &(0x7f0000000000)=""/23) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) semctl$GETPID(0x0, 0x3, 0xb, &(0x7f0000000380)=""/4096) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="3f00fd000a9afebff43ef90000f92aca5e4de69c97282acb87a22d219b9b366d68d85e6f6fb455ccb4896cefef221f02e800d3b75759081b54a98306027098ae2bd4181eaa5dcc67d38d3087b5859fbbefa13b9108203e1ef74d962aec6bf5660045c6c8e4cb67a053c6b92c340fdc4a8304967c479adf48f8fa7d3856ce6cbb51998922901796ba6547c686b3719e5b1f17a6e906d277c614e9359f9718a8404a4f436ef7dc34d3904b2401886cfbd4caff62956ccb917850403ecc9ab55561d5e863bb6e902a617a7eefceb283a833b5060a6905729f00bd33433d8844f283", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 489.352820] nbd: couldn't find a device at index 0 11:53:49 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) (async) r1 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) connect$l2tp6(0xffffffffffffffff, &(0x7f0000000180)={0xa, 0x0, 0x8000, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0x0, 0x1}, 0x20) (async) sendmsg$L2TP_CMD_TUNNEL_DELETE(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r1, 0x2, 0x70bd26, 0x25dfdbfc, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @multicast1}, @L2TP_ATTR_FD={0x8, 0x17, @udp6}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:49 executing program 5: socketpair(0x1d, 0x4, 0x7fff, &(0x7f0000000000)) ioctl$DRM_IOCTL_GET_CTX(0xffffffffffffffff, 0xc0086423, &(0x7f0000000040)={0x0, 0x1}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$DRM_IOCTL_GET_SAREA_CTX(0xffffffffffffffff, 0xc010641d, &(0x7f00000000c0)={0x0, &(0x7f0000000080)=""/33}) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$RDMA_NLDEV_CMD_GET(r1, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, 0x1401, 0x410, 0x70bd25, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x40}, 0x4000000) bind(r0, 0x0, 0x0) 11:53:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r0) socketpair(0x27, 0x1, 0x5ce73162, &(0x7f0000000340)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x58, r2, 0x8, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\xaa\xaa\xaa\xaa\xaa'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '/-'}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x58}, 0x1, 0x0, 0x0, 0x8004}, 0x800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r4 = socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000040), 0xffffffffffffffff) (async) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000080)={'batadv0\x00', 0x0}) sendmsg$BATADV_CMD_GET_NEIGHBORS(r4, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r5, 0x400, 0x70bd26, 0x1, {}, [@BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x8}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r6}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5}, @BATADV_ATTR_FRAGMENTATION_ENABLED={0x5, 0x30, 0x1}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5, 0x29, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000000}, 0x10) 11:53:49 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:49 executing program 4: 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$nbd(&(0x7f0000000080), r1) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socket$inet_udp(0x2, 0x2, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd701971a986dc53d123252732367a89"], 0x7c}}, 0x0) semctl$IPC_STAT(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000040)=""/236) 11:53:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000600), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, 0x0, 0x200, 0x70bd29, 0x25dfdbfd, {}, [@BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0xe6}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x840) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$batadv(&(0x7f0000001080), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_DAT_CACHE(r2, &(0x7f0000001140)={0x0, 0x0, &(0x7f0000001100)={&(0x7f0000001180)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r3, @ANYBLOB='{'], 0x20}}, 0x0) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x6}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x1}, @BATADV_ATTR_ORIG_INTERVAL={0x8, 0x39, 0x9}]}, 0x2c}, 0x1, 0x0, 0x0, 0x80}, 0x20008800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000480), 0xffffffffffffffff) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000004c0), 0xc0200, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000005c0)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x80020620}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)=ANY=[@ANYBLOB='d\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="000125bd7000fedbdf25030000000c000400ffffffffffffffff0c000200ff000000000000001400078008000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="0c00050032010000000000000c00080007000000000000000c00050000e5940000000000"], 0x64}, 0x1, 0x0, 0x0, 0x8045}, 0x40000010) 11:53:50 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) 11:53:50 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000080), 0xc0000, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)={0x78, r1, 0x4, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1321}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x78}, 0x1, 0x0, 0x0, 0x24000891}, 0x20040010) [ 489.484544] nbd: couldn't find a device at index 0 11:53:50 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socket$inet_udp(0x2, 0x2, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd701971a986dc53d123252732367a89"], 0x7c}}, 0x0) semctl$IPC_STAT(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000040)=""/236) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socket$inet_udp(0x2, 0x2, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd701971a986dc53d123252732367a89"], 0x7c}}, 0x0) (async) semctl$IPC_STAT(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000040)=""/236) (async) [ 489.534790] nbd: couldn't find a device at index 5 11:53:50 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) (async) bind(r0, 0x0, 0x0) (async) 11:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) (async) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000080), 0xc0000, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)={0x78, r1, 0x4, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1321}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x78}, 0x1, 0x0, 0x0, 0x24000891}, 0x20040010) [ 489.561336] nbd: couldn't find a device at index 0 11:53:50 executing program 5: socketpair(0x10, 0x2, 0x8, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'batadv_slave_0\x00'}) socketpair(0x1, 0x5, 0x0, &(0x7f0000000000)) 11:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000180)={&(0x7f0000000200)=ANY=[@ANYBLOB="64cfb31dcb550ef6d7787229b2cc515408f3481696f2269b59204aee7af08148cb47d4d4e7004cadae36a54c9c49e5eb7cae304613485451ea98ea69fe618666a18795319a1460101a97b6320917162b2607aecef3d85e0ee54b34768f49dca1a3499e0b82edc327a9f695bf5dc43a53968c16177881fa71a569c841267bdd17061f9c695a28", @ANYRES16=r4, @ANYBLOB="000428bd7000fbdbdf25030000000c00040000004000000000000c0003000008000000000000"], 0x2c}}, 0x4000000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 1: syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = openat$vmci(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$IOCTL_VMCI_QUEUEPAIR_SETVA(r1, 0x7a4, &(0x7f0000000080)={{@any, 0x1}, 0x7ff, 0x1, 0x5, 0x2}) bind(r0, 0x0, 0x0) 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socket$inet_udp(0x2, 0x2, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd701971a986dc53d123252732367a89"], 0x7c}}, 0x0) (async) semctl$IPC_STAT(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000040)=""/236) 11:53:50 executing program 5: socketpair(0x10, 0x2, 0x8, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'batadv_slave_0\x00'}) socketpair(0x1, 0x5, 0x0, &(0x7f0000000000)) [ 489.642771] nbd: couldn't find a device at index 0 11:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) (async) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000080), 0xc0000, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)={0x78, r1, 0x4, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1321}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x78}, 0x1, 0x0, 0x0, 0x24000891}, 0x20040010) 11:53:50 executing program 5: socketpair(0x10, 0x2, 0x8, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'batadv_slave_0\x00'}) socketpair(0x1, 0x5, 0x0, &(0x7f0000000000)) 11:53:50 executing program 1: syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = openat$vmci(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$IOCTL_VMCI_QUEUEPAIR_SETVA(r1, 0x7a4, &(0x7f0000000080)={{@any, 0x1}, 0x7ff, 0x1, 0x5, 0x2}) bind(r0, 0x0, 0x0) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), 0xffffffffffffffff) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) openat$vmci(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) (async) ioctl$IOCTL_VMCI_QUEUEPAIR_SETVA(r1, 0x7a4, &(0x7f0000000080)={{@any, 0x1}, 0x7ff, 0x1, 0x5, 0x2}) (async) bind(r0, 0x0, 0x0) (async) 11:53:50 executing program 4: r0 = syz_init_net_socket$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) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000180)={&(0x7f0000000200)=ANY=[@ANYBLOB="64cfb31dcb550ef6d7787229b2cc515408f3481696f2269b59204aee7af08148cb47d4d4e7004cadae36a54c9c49e5eb7cae304613485451ea98ea69fe618666a18795319a1460101a97b6320917162b2607aecef3d85e0ee54b34768f49dca1a3499e0b82edc327a9f695bf5dc43a53968c16177881fa71a569c841267bdd17061f9c695a28", @ANYRES16=r4, @ANYBLOB="000428bd7000fbdbdf25030000000c00040000004000000000000c0003000008000000000000"], 0x2c}}, 0x4000000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 5: socketpair(0x10, 0x2, 0x8, 0x0) socketpair(0x1, 0x5, 0x0, &(0x7f0000000000)) 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB="3f205cd867880000", @ANYRES16=r1, @ANYRESOCT=r2], 0x7c}}, 0x20008894) [ 489.730762] nbd: couldn't find a device at index 0 11:53:50 executing program 0: ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000040)={&(0x7f0000000000)=[0x884f, 0x6, 0x6, 0x80, 0x8, 0x9, 0x0], 0x7, 0x800, 0x0, 0xffffffffffffffff}) sendto$l2tp6(r0, &(0x7f0000000300)="da7882cbfc39c82c405c56274f402934625043929f9cdafb710420764c1bdad6172a0d4dd4d9372009225169922bf0ef2600f4fcb0b8ef9caa86e40229b7c24fb8b39b840e9702a2a1e9178fb578f617e80dfe0f138c17667631db12c5c164809ee25a210d272cf4b375686db52b07e2c313e8adf98c742d5376900d9edb1efc1e8da0eb7bf361106695b869a84d1c40bbcdc1b826d9a088b047933e52912bb3975acc501966435185df245d08eb17e6fec1e8bc87e991676ae765601fbed55ea87b5c7f71ee72fe12bf979b948c6b617b7daedde327887963edbd7912f8ed7a197ea9557b4c4294ab89", 0xea, 0x20000040, &(0x7f0000000080)={0xa, 0x0, 0xaa, @private0={0xfc, 0x0, '\x00', 0x1}, 0x6, 0x1}, 0x20) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$sock_ipv6_tunnel_SIOCGETPRL(r3, 0x89f4, &(0x7f0000000500)={'syztnl1\x00', &(0x7f0000000480)={'ip6_vti0\x00', 0x0, 0x4, 0x80, 0x8, 0x7, 0xa, @remote, @dev={0xfe, 0x80, '\x00', 0x12}, 0x40, 0x8000, 0x0, 0x7}}) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$TUNSETSNDBUF(r2, 0x400454d4, &(0x7f0000000440)=0xffffffff) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) setsockopt$bt_BT_DEFER_SETUP(r1, 0x112, 0x7, &(0x7f0000000140)=0x1, 0x4) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_SWITCH_CTX(r0, 0x40086424, &(0x7f00000000c0)={0x0, 0x166cb225db7972a2}) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(r1, 0xc01864c6, &(0x7f00000001c0)={&(0x7f0000000180)=[0x8988, 0x7859, 0x19, 0xffffffff, 0x9], 0x5, 0x800, 0x0, 0xffffffffffffffff}) ioctl$DRM_IOCTL_SWITCH_CTX(r5, 0x40086424, &(0x7f0000000400)={0x0, 0x2}) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c304f93383931b901bbb2add8c290c6d2e997194578346e46aca3908bbd8be1a42a7debe904d6819f538c3609895b1adc0f267ff4786da55bd10b554c0c6a6c6ce1220dc3ee98a107e5674cc7bc092cabcbb32c3b", @ANYRES16=r6, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 1: syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = openat$vmci(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$IOCTL_VMCI_QUEUEPAIR_SETVA(r1, 0x7a4, &(0x7f0000000080)={{@any, 0x1}, 0x7ff, 0x1, 0x5, 0x2}) bind(r0, 0x0, 0x0) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), 0xffffffffffffffff) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) openat$vmci(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) (async) ioctl$IOCTL_VMCI_QUEUEPAIR_SETVA(r1, 0x7a4, &(0x7f0000000080)={{@any, 0x1}, 0x7ff, 0x1, 0x5, 0x2}) (async) bind(r0, 0x0, 0x0) (async) 11:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000180)={&(0x7f0000000200)=ANY=[@ANYBLOB="64cfb31dcb550ef6d7787229b2cc515408f3481696f2269b59204aee7af08148cb47d4d4e7004cadae36a54c9c49e5eb7cae304613485451ea98ea69fe618666a18795319a1460101a97b6320917162b2607aecef3d85e0ee54b34768f49dca1a3499e0b82edc327a9f695bf5dc43a53968c16177881fa71a569c841267bdd17061f9c695a28", @ANYRES16=r4, @ANYBLOB="000428bd7000fbdbdf25030000000c00040000004000000000000c0003000008000000000000"], 0x2c}}, 0x4000000) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:50 executing program 5: socketpair(0x1, 0x5, 0x0, &(0x7f0000000000)) 11:53:50 executing program 0: ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000040)={&(0x7f0000000000)=[0x884f, 0x6, 0x6, 0x80, 0x8, 0x9, 0x0], 0x7, 0x800, 0x0, 0xffffffffffffffff}) sendto$l2tp6(r0, &(0x7f0000000300)="da7882cbfc39c82c405c56274f402934625043929f9cdafb710420764c1bdad6172a0d4dd4d9372009225169922bf0ef2600f4fcb0b8ef9caa86e40229b7c24fb8b39b840e9702a2a1e9178fb578f617e80dfe0f138c17667631db12c5c164809ee25a210d272cf4b375686db52b07e2c313e8adf98c742d5376900d9edb1efc1e8da0eb7bf361106695b869a84d1c40bbcdc1b826d9a088b047933e52912bb3975acc501966435185df245d08eb17e6fec1e8bc87e991676ae765601fbed55ea87b5c7f71ee72fe12bf979b948c6b617b7daedde327887963edbd7912f8ed7a197ea9557b4c4294ab89", 0xea, 0x20000040, &(0x7f0000000080)={0xa, 0x0, 0xaa, @private0={0xfc, 0x0, '\x00', 0x1}, 0x6, 0x1}, 0x20) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$sock_ipv6_tunnel_SIOCGETPRL(r3, 0x89f4, &(0x7f0000000500)={'syztnl1\x00', &(0x7f0000000480)={'ip6_vti0\x00', 0x0, 0x4, 0x80, 0x8, 0x7, 0xa, @remote, @dev={0xfe, 0x80, '\x00', 0x12}, 0x40, 0x8000, 0x0, 0x7}}) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$TUNSETSNDBUF(r2, 0x400454d4, &(0x7f0000000440)=0xffffffff) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) setsockopt$bt_BT_DEFER_SETUP(r1, 0x112, 0x7, &(0x7f0000000140)=0x1, 0x4) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_SWITCH_CTX(r0, 0x40086424, &(0x7f00000000c0)={0x0, 0x166cb225db7972a2}) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(r1, 0xc01864c6, &(0x7f00000001c0)={&(0x7f0000000180)=[0x8988, 0x7859, 0x19, 0xffffffff, 0x9], 0x5, 0x800, 0x0, 0xffffffffffffffff}) ioctl$DRM_IOCTL_SWITCH_CTX(r5, 0x40086424, &(0x7f0000000400)={0x0, 0x2}) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c304f93383931b901bbb2add8c290c6d2e997194578346e46aca3908bbd8be1a42a7debe904d6819f538c3609895b1adc0f267ff4786da55bd10b554c0c6a6c6ce1220dc3ee98a107e5674cc7bc092cabcbb32c3b", @ANYRES16=r6, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000040)={&(0x7f0000000000)=[0x884f, 0x6, 0x6, 0x80, 0x8, 0x9, 0x0], 0x7, 0x800}) (async) sendto$l2tp6(r0, &(0x7f0000000300)="da7882cbfc39c82c405c56274f402934625043929f9cdafb710420764c1bdad6172a0d4dd4d9372009225169922bf0ef2600f4fcb0b8ef9caa86e40229b7c24fb8b39b840e9702a2a1e9178fb578f617e80dfe0f138c17667631db12c5c164809ee25a210d272cf4b375686db52b07e2c313e8adf98c742d5376900d9edb1efc1e8da0eb7bf361106695b869a84d1c40bbcdc1b826d9a088b047933e52912bb3975acc501966435185df245d08eb17e6fec1e8bc87e991676ae765601fbed55ea87b5c7f71ee72fe12bf979b948c6b617b7daedde327887963edbd7912f8ed7a197ea9557b4c4294ab89", 0xea, 0x20000040, &(0x7f0000000080)={0xa, 0x0, 0xaa, @private0={0xfc, 0x0, '\x00', 0x1}, 0x6, 0x1}, 0x20) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) ioctl$sock_ipv6_tunnel_SIOCGETPRL(r3, 0x89f4, &(0x7f0000000500)={'syztnl1\x00', &(0x7f0000000480)={'ip6_vti0\x00', 0x0, 0x4, 0x80, 0x8, 0x7, 0xa, @remote, @dev={0xfe, 0x80, '\x00', 0x12}, 0x40, 0x8000, 0x0, 0x7}}) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) ioctl$TUNSETSNDBUF(r2, 0x400454d4, &(0x7f0000000440)=0xffffffff) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) setsockopt$bt_BT_DEFER_SETUP(r1, 0x112, 0x7, &(0x7f0000000140)=0x1, 0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$DRM_IOCTL_SWITCH_CTX(r0, 0x40086424, &(0x7f00000000c0)={0x0, 0x166cb225db7972a2}) (async) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(r1, 0xc01864c6, &(0x7f00000001c0)={&(0x7f0000000180)=[0x8988, 0x7859, 0x19, 0xffffffff, 0x9], 0x5, 0x800}) (async) ioctl$DRM_IOCTL_SWITCH_CTX(r5, 0x40086424, &(0x7f0000000400)={0x0, 0x2}) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c304f93383931b901bbb2add8c290c6d2e997194578346e46aca3908bbd8be1a42a7debe904d6819f538c3609895b1adc0f267ff4786da55bd10b554c0c6a6c6ce1220dc3ee98a107e5674cc7bc092cabcbb32c3b", @ANYRES16=r6, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB="3f205cd867880000", @ANYRES16=r1, @ANYRESOCT=r2], 0x7c}}, 0x20008894) 11:53:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 5: socketpair(0x0, 0x5, 0x0, &(0x7f0000000000)) 11:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$evdev(&(0x7f0000000000), 0x7fffffff, 0x204440) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000100)=""/167) ioctl$EVIOCGID(r2, 0x80084502, &(0x7f00000001c0)=""/162) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x1f, 0x800, 0xfff, &(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000540)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000500)={&(0x7f0000000440)={0x90, r4, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x96}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8f5d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x110}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1692}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x90}, 0x1, 0x0, 0x0, 0x801}, 0x20000800) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r8) sendmsg$NBD_CMD_CONNECT(r8, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x20, r9, 0x801, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xc000000000000000}]}, 0x20}, 0x1, 0x0, 0x0, 0x400}, 0x80) 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB="3f205cd867880000", @ANYRES16=r1, @ANYRESOCT=r2], 0x7c}}, 0x20008894) 11:53:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 0: ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000040)={&(0x7f0000000000)=[0x884f, 0x6, 0x6, 0x80, 0x8, 0x9, 0x0], 0x7, 0x800, 0x0, 0xffffffffffffffff}) sendto$l2tp6(r0, &(0x7f0000000300)="da7882cbfc39c82c405c56274f402934625043929f9cdafb710420764c1bdad6172a0d4dd4d9372009225169922bf0ef2600f4fcb0b8ef9caa86e40229b7c24fb8b39b840e9702a2a1e9178fb578f617e80dfe0f138c17667631db12c5c164809ee25a210d272cf4b375686db52b07e2c313e8adf98c742d5376900d9edb1efc1e8da0eb7bf361106695b869a84d1c40bbcdc1b826d9a088b047933e52912bb3975acc501966435185df245d08eb17e6fec1e8bc87e991676ae765601fbed55ea87b5c7f71ee72fe12bf979b948c6b617b7daedde327887963edbd7912f8ed7a197ea9557b4c4294ab89", 0xea, 0x20000040, &(0x7f0000000080)={0xa, 0x0, 0xaa, @private0={0xfc, 0x0, '\x00', 0x1}, 0x6, 0x1}, 0x20) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) ioctl$sock_ipv6_tunnel_SIOCGETPRL(r3, 0x89f4, &(0x7f0000000500)={'syztnl1\x00', &(0x7f0000000480)={'ip6_vti0\x00', 0x0, 0x4, 0x80, 0x8, 0x7, 0xa, @remote, @dev={0xfe, 0x80, '\x00', 0x12}, 0x40, 0x8000, 0x0, 0x7}}) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) ioctl$TUNSETSNDBUF(r2, 0x400454d4, &(0x7f0000000440)=0xffffffff) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) setsockopt$bt_BT_DEFER_SETUP(r1, 0x112, 0x7, &(0x7f0000000140)=0x1, 0x4) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_SWITCH_CTX(r0, 0x40086424, &(0x7f00000000c0)={0x0, 0x166cb225db7972a2}) (async) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(r1, 0xc01864c6, &(0x7f00000001c0)={&(0x7f0000000180)=[0x8988, 0x7859, 0x19, 0xffffffff, 0x9], 0x5, 0x800, 0x0, 0xffffffffffffffff}) ioctl$DRM_IOCTL_SWITCH_CTX(r5, 0x40086424, &(0x7f0000000400)={0x0, 0x2}) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[@ANYBLOB="5c304f93383931b901bbb2add8c290c6d2e997194578346e46aca3908bbd8be1a42a7debe904d6819f538c3609895b1adc0f267ff4786da55bd10b554c0c6a6c6ce1220dc3ee98a107e5674cc7bc092cabcbb32c3b", @ANYRES16=r6, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 11:53:50 executing program 5: socketpair(0x0, 0x5, 0x0, &(0x7f0000000000)) [ 489.909088] nla_parse: 39 callbacks suppressed [ 489.909093] netlink: 104 bytes leftover after parsing attributes in process `syz-executor.4'. [ 489.939625] nbd: must specify at least one socket 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r2 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$MEDIA_REQUEST_IOC_QUEUE(r2, 0x7c80, 0x0) 11:53:50 executing program 1: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, r2, 0x20, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x20}, 0x1, 0x0, 0x0, 0x8040}, 0x20004080) bind(r0, 0x0, 0x0) sendmsg$RDMA_NLDEV_CMD_SYS_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, 0x1406, 0x20, 0x70bd2d, 0x25dfdbfc, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8}]}, 0x28}, 0x1, 0x0, 0x0, 0x90}, 0x20040000) 11:53:50 executing program 5: socketpair(0x0, 0x5, 0x0, &(0x7f0000000000)) [ 489.961116] nbd: must specify at least one socket [ 489.971564] nbd: must specify a device to reconfigure 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000140), 0x20000, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) connect$vsock_dgram(r4, &(0x7f00000001c0)={0x28, 0x0, 0x2710, @host}, 0x10) ioctl$MEDIA_REQUEST_IOC_QUEUE(r3, 0x7c80, 0x0) sendmsg$BATADV_CMD_GET_BLA_BACKBONE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, 0x0, 0x400, 0x70bd28, 0x25dfdbfc, {}, [@BATADV_ATTR_FRAGMENTATION_ENABLED={0x5}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x5}, @BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED={0x5, 0x2f, 0x1}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x10}, 0x8042) 11:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$evdev(&(0x7f0000000000), 0x7fffffff, 0x204440) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000100)=""/167) ioctl$EVIOCGID(r2, 0x80084502, &(0x7f00000001c0)=""/162) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) socketpair(0x1f, 0x800, 0xfff, &(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000540)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000500)={&(0x7f0000000440)={0x90, r4, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x96}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8f5d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x110}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1692}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x90}, 0x1, 0x0, 0x0, 0x801}, 0x20000800) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r8) sendmsg$NBD_CMD_CONNECT(r8, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x20, r9, 0x801, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xc000000000000000}]}, 0x20}, 0x1, 0x0, 0x0, 0x400}, 0x80) 11:53:50 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_open_dev$evdev(&(0x7f0000000000), 0x7fffffff, 0x204440) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000100)=""/167) ioctl$EVIOCGID(r2, 0x80084502, &(0x7f00000001c0)=""/162) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x1f, 0x800, 0xfff, &(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000540)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000500)={&(0x7f0000000440)={0x90, r4, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x96}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8f5d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x110}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1692}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x90}, 0x1, 0x0, 0x0, 0x801}, 0x20000800) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r8) sendmsg$NBD_CMD_CONNECT(r8, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x20, r9, 0x801, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xc000000000000000}]}, 0x20}, 0x1, 0x0, 0x0, 0x400}, 0x80) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 5: socketpair(0x1, 0x0, 0x0, &(0x7f0000000000)) [ 490.006493] netlink: 104 bytes leftover after parsing attributes in process `syz-executor.1'. [ 490.018654] nbd: must specify at least one socket [ 490.031290] netlink: 43 bytes leftover after parsing attributes in process `syz-executor.2'. [ 490.050811] Unknown ioctl 31872 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r2 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$MEDIA_REQUEST_IOC_QUEUE(r2, 0x7c80, 0x0) 11:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000140), 0x20000, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) connect$vsock_dgram(r4, &(0x7f00000001c0)={0x28, 0x0, 0x2710, @host}, 0x10) (async) ioctl$MEDIA_REQUEST_IOC_QUEUE(r3, 0x7c80, 0x0) (async) sendmsg$BATADV_CMD_GET_BLA_BACKBONE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, 0x0, 0x400, 0x70bd28, 0x25dfdbfc, {}, [@BATADV_ATTR_FRAGMENTATION_ENABLED={0x5}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x5}, @BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED={0x5, 0x2f, 0x1}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x10}, 0x8042) 11:53:50 executing program 5: socketpair(0x1, 0x0, 0x0, &(0x7f0000000000)) [ 490.088561] nbd: couldn't find a device at index 0 [ 490.106189] Unknown ioctl 31872 [ 490.108008] netlink: 104 bytes leftover after parsing attributes in process `syz-executor.4'. [ 490.129349] nbd: must specify at least one socket 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:50 executing program 5: socketpair(0x1, 0x0, 0x0, &(0x7f0000000000)) [ 490.144738] nbd: must specify a device to reconfigure [ 490.163555] Unknown ioctl 31872 [ 490.171792] nbd: couldn't find a device at index 0 11:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$evdev(&(0x7f0000000000), 0x7fffffff, 0x204440) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000100)=""/167) ioctl$EVIOCGID(r2, 0x80084502, &(0x7f00000001c0)=""/162) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x1f, 0x800, 0xfff, &(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000540)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000500)={&(0x7f0000000440)={0x90, r4, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x96}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8f5d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x110}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1692}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x90}, 0x1, 0x0, 0x0, 0x801}, 0x20000800) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r8) sendmsg$NBD_CMD_CONNECT(r8, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x20, r9, 0x801, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xc000000000000000}]}, 0x20}, 0x1, 0x0, 0x0, 0x400}, 0x80) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$evdev(&(0x7f0000000000), 0x7fffffff, 0x204440) (async) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000100)=""/167) (async) ioctl$EVIOCGID(r2, 0x80084502, &(0x7f00000001c0)=""/162) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) socketpair(0x1f, 0x800, 0xfff, &(0x7f0000000400)) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000540)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000500)={&(0x7f0000000440)={0x90, r4, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x96}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8f5d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x110}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1692}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x90}, 0x1, 0x0, 0x0, 0x801}, 0x20000800) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r8) (async) sendmsg$NBD_CMD_CONNECT(r8, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x20, r9, 0x801, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xc000000000000000}]}, 0x20}, 0x1, 0x0, 0x0, 0x400}, 0x80) (async) 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) r2 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$MEDIA_REQUEST_IOC_QUEUE(r2, 0x7c80, 0x0) 11:53:50 executing program 5: socketpair(0x1, 0x5, 0x0, 0x0) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 490.189381] netlink: 104 bytes leftover after parsing attributes in process `syz-executor.1'. [ 490.209654] Unknown ioctl 31872 [ 490.221349] nbd: must specify at least one socket [ 490.239275] netlink: 104 bytes leftover after parsing attributes in process `syz-executor.4'. [ 490.253566] Unknown ioctl 31872 [ 490.268523] nbd: must specify at least one socket [ 490.282579] netlink: 43 bytes leftover after parsing attributes in process `syz-executor.2'. 11:53:50 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_open_dev$evdev(&(0x7f0000000000), 0x7fffffff, 0x204440) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000100)=""/167) ioctl$EVIOCGID(r2, 0x80084502, &(0x7f00000001c0)=""/162) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x1f, 0x800, 0xfff, &(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000540)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000500)={&(0x7f0000000440)={0x90, r4, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x96}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8f5d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x110}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1692}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x90}, 0x1, 0x0, 0x0, 0x801}, 0x20000800) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r8) sendmsg$NBD_CMD_CONNECT(r8, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x20, r9, 0x801, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xc000000000000000}]}, 0x20}, 0x1, 0x0, 0x0, 0x400}, 0x80) 11:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000140), 0x20000, 0x0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) connect$vsock_dgram(r4, &(0x7f00000001c0)={0x28, 0x0, 0x2710, @host}, 0x10) (async) ioctl$MEDIA_REQUEST_IOC_QUEUE(r3, 0x7c80, 0x0) (async) sendmsg$BATADV_CMD_GET_BLA_BACKBONE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x34, 0x0, 0x400, 0x70bd28, 0x25dfdbfc, {}, [@BATADV_ATTR_FRAGMENTATION_ENABLED={0x5}, @BATADV_ATTR_GW_SEL_CLASS={0x8, 0x34, 0x5}, @BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED={0x5, 0x2f, 0x1}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x10}, 0x8042) 11:53:50 executing program 5: socketpair(0x1, 0x5, 0x0, 0x0) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x0) 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRESHEX=r2, @ANYBLOB], 0x7c}, 0x1, 0x0, 0x0, 0x20000080}, 0x80) ioctl$TUNSETFILTEREBPF(r2, 0x800454e1, &(0x7f0000000040)=r1) 11:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_VMCI_VERSION(0xffffffffffffffff, 0x79f, &(0x7f0000000100)=0x10000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB], 0x14}}, 0x0) [ 490.293661] nbd: must specify a device to reconfigure [ 490.302356] nbd: must specify a device to reconfigure 11:53:50 executing program 5: socketpair(0x1, 0x5, 0x0, 0x0) 11:53:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRESHEX=r2, @ANYBLOB], 0x7c}, 0x1, 0x0, 0x0, 0x20000080}, 0x80) ioctl$TUNSETFILTEREBPF(r2, 0x800454e1, &(0x7f0000000040)=r1) 11:53:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x0) [ 490.350142] nbd: couldn't find a device at index 0 11:53:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x44, r6, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xd25b}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}]}, 0x44}, 0x1, 0x0, 0x0, 0x800}, 0x1) 11:53:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_VMCI_VERSION(0xffffffffffffffff, 0x79f, &(0x7f0000000100)=0x10000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB], 0x14}}, 0x0) 11:53:50 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_dev$evdev(&(0x7f0000000000), 0x7fffffff, 0x204440) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000100)=""/167) ioctl$EVIOCGID(r2, 0x80084502, &(0x7f00000001c0)=""/162) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x1f, 0x800, 0xfff, &(0x7f0000000400)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000540)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000500)={&(0x7f0000000440)={0x90, r4, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x96}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8f5d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x110}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1692}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x90}, 0x1, 0x0, 0x0, 0x801}, 0x20000800) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r8) sendmsg$NBD_CMD_CONNECT(r8, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x20, r9, 0x801, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xc000000000000000}]}, 0x20}, 0x1, 0x0, 0x0, 0x400}, 0x80) [ 490.425854] netlink: 104 bytes leftover after parsing attributes in process `syz-executor.1'. [ 490.444533] nbd: must specify at least one socket [ 490.460672] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 490.506032] nbd: must specify a device to reconfigure [ 490.522133] nbd: must specify a device to reconfigure [ 490.545399] netlink: 104 bytes leftover after parsing attributes in process `syz-executor.5'. 11:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x44, r6, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xd25b}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}]}, 0x44}, 0x1, 0x0, 0x0, 0x800}, 0x1) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x0) 11:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRESHEX=r2, @ANYBLOB], 0x7c}, 0x1, 0x0, 0x0, 0x20000080}, 0x80) (async, rerun: 32) ioctl$TUNSETFILTEREBPF(r2, 0x800454e1, &(0x7f0000000040)=r1) (rerun: 32) 11:53:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$IOCTL_VMCI_VERSION(0xffffffffffffffff, 0x79f, &(0x7f0000000100)=0x10000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB], 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$IOCTL_VMCI_VERSION(0xffffffffffffffff, 0x79f, &(0x7f0000000100)=0x10000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB], 0x14}}, 0x0) (async) 11:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) (async) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) (async) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x44, r6, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xd25b}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}]}, 0x44}, 0x1, 0x0, 0x0, 0x800}, 0x1) [ 490.558482] nbd: must specify at least one socket 11:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 490.587338] nbd: must specify a device to reconfigure 11:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0) ioctl$EVIOCGSW(r1, 0x8040451b, &(0x7f0000000380)=""/225) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$DRM_IOCTL_NEW_CTX(r2, 0x40086425, &(0x7f0000000100)={0x0, 0x1}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$DRM_IOCTL_ADD_CTX(r2, 0xc0086420, &(0x7f0000000280)={0x0}) ioctl$DRM_IOCTL_SWITCH_CTX(0xffffffffffffffff, 0x40086424, &(0x7f00000002c0)={r3, 0x3}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, 0x0, 0x4, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '\x95/\\'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}]}, 0x40}, 0x1, 0x0, 0x0, 0x40010}, 0x8040) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x44, r6, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xd25b}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}]}, 0x44}, 0x1, 0x0, 0x0, 0x800}, 0x1) [ 490.708134] nbd: must specify a device to reconfigure [ 490.724760] nbd: must specify a device to reconfigure 11:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) (async) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x44, r6, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xd25b}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}]}, 0x44}, 0x1, 0x0, 0x0, 0x800}, 0x1) 11:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0) ioctl$EVIOCGSW(r1, 0x8040451b, &(0x7f0000000380)=""/225) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$DRM_IOCTL_NEW_CTX(r2, 0x40086425, &(0x7f0000000100)={0x0, 0x1}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$DRM_IOCTL_ADD_CTX(r2, 0xc0086420, &(0x7f0000000280)={0x0}) ioctl$DRM_IOCTL_SWITCH_CTX(0xffffffffffffffff, 0x40086424, &(0x7f00000002c0)={r3, 0x3}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, 0x0, 0x4, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '\x95/\\'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}]}, 0x40}, 0x1, 0x0, 0x0, 0x40010}, 0x8040) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0) (async) ioctl$EVIOCGSW(r1, 0x8040451b, &(0x7f0000000380)=""/225) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) ioctl$DRM_IOCTL_NEW_CTX(r2, 0x40086425, &(0x7f0000000100)={0x0, 0x1}) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) ioctl$DRM_IOCTL_ADD_CTX(r2, 0xc0086420, &(0x7f0000000280)) (async) ioctl$DRM_IOCTL_SWITCH_CTX(0xffffffffffffffff, 0x40086424, &(0x7f00000002c0)={r3, 0x3}) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, 0x0, 0x4, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '\x95/\\'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}]}, 0x40}, 0x1, 0x0, 0x0, 0x40010}, 0x8040) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:51 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) 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$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000003c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x38, r1, 0x400, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xaa93}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x80000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x5}, 0x10040040) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x48, r4, 0x1, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000001}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x80, r1, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffffe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe92}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x80}, 0x1, 0x0, 0x0, 0x4000041}, 0x20000880) [ 490.791831] nbd: must specify a device to reconfigure [ 490.838447] nbd: must specify a device to reconfigure 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r7, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x44, r6, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xd25b}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}]}, 0x44}, 0x1, 0x0, 0x0, 0x800}, 0x1) 11:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 490.865707] nbd: must specify at least one socket 11:53:51 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000003c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x38, r1, 0x400, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xaa93}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x80000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x5}, 0x10040040) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x48, r4, 0x1, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000001}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x80, r1, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffffe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe92}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x80}, 0x1, 0x0, 0x0, 0x4000041}, 0x20000880) 11:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0) ioctl$EVIOCGSW(r1, 0x8040451b, &(0x7f0000000380)=""/225) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$DRM_IOCTL_NEW_CTX(r2, 0x40086425, &(0x7f0000000100)={0x0, 0x1}) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) ioctl$DRM_IOCTL_ADD_CTX(r2, 0xc0086420, &(0x7f0000000280)={0x0}) ioctl$DRM_IOCTL_SWITCH_CTX(0xffffffffffffffff, 0x40086424, &(0x7f00000002c0)={r3, 0x3}) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, 0x0, 0x4, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '\x95/\\'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}]}, 0x40}, 0x1, 0x0, 0x0, 0x40010}, 0x8040) (async) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 490.927333] nbd: must specify a device to reconfigure 11:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) 11:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$EVIOCGPROP(r2, 0x80404509, &(0x7f0000000000)=""/171) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) ioctl$EVIOCGPROP(r2, 0x80404509, &(0x7f0000000000)=""/171) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 491.032717] nbd: must specify a device to reconfigure 11:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) [ 491.148009] nbd: must specify a device to reconfigure 11:53:51 executing program 4: syz_init_net_socket$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) (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$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000003c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x38, r1, 0x400, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xaa93}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x80000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x5}, 0x10040040) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x48, r4, 0x1, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000001}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x80, r1, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffffe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe92}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x80}, 0x1, 0x0, 0x0, 0x4000041}, 0x20000880) 11:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 11:53:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) ioctl$EVIOCGPROP(r2, 0x80404509, &(0x7f0000000000)=""/171) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 491.402330] nbd: must specify a device to reconfigure 11:53:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c020000e0b299b1ba6abc7096eecb53c3d058656d76651a7ff0084cf5fdd9d30c3d6773c389f8cde006fb077a87a195cbcc6e289908c1d9a229809e1bcc26cf7675986675378277f78875bcb99762d0f6ec3e52b0d39c8c", @ANYRES32=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 11:53:51 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={0x0, 0x20}, 0x1, 0x0, 0x0, 0x4004891}, 0x4000800) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000100), 0x37fa0806276e354e, 0x0) getsockopt$bt_BT_SNDMTU(r4, 0x112, 0xc, &(0x7f0000000140)=0x800, &(0x7f0000000180)=0x2) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000300)=ANY=[@ANYBLOB="14f75102", @ANYRES16=r3, @ANYBLOB="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"], 0x14}}, 0x0) 11:53:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) 11:53:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@BATADV_ATTR_HOP_PENALTY={0x5, 0x35, 0x3}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0xd3e}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6, 0x28, 0x1}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x8000}, 0x20048000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) [ 491.430681] nbd: must specify at least one socket 11:53:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c020000e0b299b1ba6abc7096eecb53c3d058656d76651a7ff0084cf5fdd9d30c3d6773c389f8cde006fb077a87a195cbcc6e289908c1d9a229809e1bcc26cf7675986675378277f78875bcb99762d0f6ec3e52b0d39c8c", @ANYRES32=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c020000e0b299b1ba6abc7096eecb53c3d058656d76651a7ff0084cf5fdd9d30c3d6773c389f8cde006fb077a87a195cbcc6e289908c1d9a229809e1bcc26cf7675986675378277f78875bcb99762d0f6ec3e52b0d39c8c", @ANYRES32=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) 11:53:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={0x0, 0x20}, 0x1, 0x0, 0x0, 0x4004891}, 0x4000800) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000100), 0x37fa0806276e354e, 0x0) getsockopt$bt_BT_SNDMTU(r4, 0x112, 0xc, &(0x7f0000000140)=0x800, &(0x7f0000000180)=0x2) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000300)=ANY=[@ANYBLOB="14f75102", @ANYRES16=r3, @ANYBLOB="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"], 0x14}}, 0x0) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:52 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 491.500152] nbd: must specify a device to reconfigure 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@BATADV_ATTR_HOP_PENALTY={0x5, 0x35, 0x3}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0xd3e}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6, 0x28, 0x1}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x8000}, 0x20048000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@BATADV_ATTR_HOP_PENALTY={0x5, 0x35, 0x3}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0xd3e}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6, 0x28, 0x1}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x8000}, 0x20048000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) 11:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c020000e0b299b1ba6abc7096eecb53c3d058656d76651a7ff0084cf5fdd9d30c3d6773c389f8cde006fb077a87a195cbcc6e289908c1d9a229809e1bcc26cf7675986675378277f78875bcb99762d0f6ec3e52b0d39c8c", @ANYRES32=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c020000e0b299b1ba6abc7096eecb53c3d058656d76651a7ff0084cf5fdd9d30c3d6773c389f8cde006fb077a87a195cbcc6e289908c1d9a229809e1bcc26cf7675986675378277f78875bcb99762d0f6ec3e52b0d39c8c", @ANYRES32=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:52 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={0x0, 0x20}, 0x1, 0x0, 0x0, 0x4004891}, 0x4000800) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000100), 0x37fa0806276e354e, 0x0) getsockopt$bt_BT_SNDMTU(r4, 0x112, 0xc, &(0x7f0000000140)=0x800, &(0x7f0000000180)=0x2) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000300)=ANY=[@ANYBLOB="14f75102", @ANYRES16=r3, @ANYBLOB="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"], 0x14}}, 0x0) 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@BATADV_ATTR_HOP_PENALTY={0x5, 0x35, 0x3}, @BATADV_ATTR_ORIG_ADDRESS={0xa, 0x9, @local}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0xd3e}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6, 0x28, 0x1}, @BATADV_ATTR_AP_ISOLATION_ENABLED={0x5, 0x2a, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x8000}, 0x20048000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x14, r1, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 491.602400] nbd: must specify a device to reconfigure 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 11:53:52 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x80, 0x0) ioctl$TUNSETSNDBUF(r2, 0x400454d4, &(0x7f0000000300)=0x1d4) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000340)={0x0, 0x2c, 0x4}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x78, 0x0, 0x2, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r1}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x30}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x27}]}, 0x78}, 0x1, 0x0, 0x0, 0x40840}, 0x20000004) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r1, 0x0, 0x0) semctl$IPC_STAT(r1, 0x0, 0x2, &(0x7f0000000100)=""/47) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) setsockopt$bt_hci_HCI_FILTER(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000)={0x3, [0x5, 0x9b1], 0x9}, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) ioctl$sock_ipv6_tunnel_SIOCGETPRL(r4, 0x89f4, &(0x7f00000001c0)={'ip6tnl0\x00', &(0x7f0000000140)={'ip6tnl0\x00', 0x0, 0x29, 0x6, 0x8, 0xdf, 0x42, @mcast1, @mcast1, 0x7800, 0x7800, 0x5, 0x1}}) 11:53:52 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$TUNSETVNETHDRSZ(r1, 0x400454d8, &(0x7f0000000000)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x80, 0x0) ioctl$TUNSETSNDBUF(r2, 0x400454d4, &(0x7f0000000300)=0x1d4) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000340)={0x0, 0x2c, 0x4}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x78, 0x0, 0x2, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r1}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x30}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x27}]}, 0x78}, 0x1, 0x0, 0x0, 0x40840}, 0x20000004) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x80, 0x0) (async) ioctl$TUNSETSNDBUF(r2, 0x400454d4, &(0x7f0000000300)=0x1d4) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000340)={0x0, 0x2c, 0x4}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x78, 0x0, 0x2, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r1}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x30}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x27}]}, 0x78}, 0x1, 0x0, 0x0, 0x40840}, 0x20000004) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x14, r1, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) [ 491.679636] nbd: must specify a device to reconfigure [ 491.694095] nbd: must specify a device to reconfigure [ 491.707057] nbd: couldn't find a device at index 0 11:53:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = semget(0x0, 0x3, 0x3bb3a0c534927305) (rerun: 64) semctl$IPC_RMID(r1, 0x0, 0x0) semctl$IPC_STAT(r1, 0x0, 0x2, &(0x7f0000000100)=""/47) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) (async) setsockopt$bt_hci_HCI_FILTER(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000)={0x3, [0x5, 0x9b1], 0x9}, 0x10) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async, rerun: 32) ioctl$sock_ipv6_tunnel_SIOCGETPRL(r4, 0x89f4, &(0x7f00000001c0)={'ip6tnl0\x00', &(0x7f0000000140)={'ip6tnl0\x00', 0x0, 0x29, 0x6, 0x8, 0xdf, 0x42, @mcast1, @mcast1, 0x7800, 0x7800, 0x5, 0x1}}) (rerun: 32) [ 491.744374] nbd: couldn't find a device at index 0 11:53:52 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x80, 0x0) ioctl$TUNSETSNDBUF(r2, 0x400454d4, &(0x7f0000000300)=0x1d4) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000340)={0x0, 0x2c, 0x4}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x78, 0x0, 0x2, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r1}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x30}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x27}]}, 0x78}, 0x1, 0x0, 0x0, 0x40840}, 0x20000004) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$TUNSETVNETHDRSZ(r1, 0x400454d8, &(0x7f0000000000)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) ioctl$TUNSETVNETHDRSZ(r1, 0x400454d8, &(0x7f0000000000)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x14, r1, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x0) [ 491.778763] nbd: must specify a device to reconfigure [ 491.798239] nbd: must specify a device to reconfigure 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) 11:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 0: r0 = socket$inet6_udplite(0xa, 0x2, 0x88) ioctl$ifreq_SIOCGIFINDEX_vcan(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'vcan0\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCADD6RD(r0, 0x89f9, &(0x7f00000000c0)={'ip6_vti0\x00', &(0x7f0000000040)={'sit0\x00', r1, 0x29, 0x0, 0x7, 0x65, 0x54, @private2={0xfc, 0x2, '\x00', 0x1}, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0x7800, 0x1, 0x4, 0x4}}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x20, r4, 0x20, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x20}, 0x1, 0x0, 0x0, 0x80001}, 0x4) 11:53:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r1, 0x0, 0x0) semctl$IPC_STAT(r1, 0x0, 0x2, &(0x7f0000000100)=""/47) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) (async) setsockopt$bt_hci_HCI_FILTER(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000)={0x3, [0x5, 0x9b1], 0x9}, 0x10) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) ioctl$sock_ipv6_tunnel_SIOCGETPRL(r4, 0x89f4, &(0x7f00000001c0)={'ip6tnl0\x00', &(0x7f0000000140)={'ip6tnl0\x00', 0x0, 0x29, 0x6, 0x8, 0xdf, 0x42, @mcast1, @mcast1, 0x7800, 0x7800, 0x5, 0x1}}) 11:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r3, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r4, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r3, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r4, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) [ 491.859282] nbd: couldn't find a device at index 0 [ 491.875791] nbd: must specify a device to reconfigure [ 491.895563] nbd: must specify a device to reconfigure 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$TUNSETVNETHDRSZ(r1, 0x400454d8, &(0x7f0000000000)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 491.954826] nbd: couldn't find a device at index 0 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x20380, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="f2fceb61b155dbc9015909370ae60daf271054bf2aabd7093684b9b60c49958a6e6e1007c90ea55145ecef9f3c6314c6451ee5605c0f2b4dd6b348969667813097ad94be93b9e26fc46f6ac0db", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:52 executing program 0: r0 = socket$inet6_udplite(0xa, 0x2, 0x88) ioctl$ifreq_SIOCGIFINDEX_vcan(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'vcan0\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCADD6RD(r0, 0x89f9, &(0x7f00000000c0)={'ip6_vti0\x00', &(0x7f0000000040)={'sit0\x00', r1, 0x29, 0x0, 0x7, 0x65, 0x54, @private2={0xfc, 0x2, '\x00', 0x1}, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0x7800, 0x1, 0x4, 0x4}}) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x20, r4, 0x20, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x20}, 0x1, 0x0, 0x0, 0x80001}, 0x4) 11:53:52 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r3, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r4, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) [ 491.977726] nbd: must specify a device to reconfigure [ 491.988009] nbd: must specify a device to reconfigure 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:52 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_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="3cc637f14b016863a98d53c77e12585192051c0aac47d03c3d1808bae1340fa8b2a75ee37b798b49bb056b93870d9afeb8e65fe274d1380600b73917387cd6ad", @ANYRES16=r2, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x20380, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="f2fceb61b155dbc9015909370ae60daf271054bf2aabd7093684b9b60c49958a6e6e1007c90ea55145ecef9f3c6314c6451ee5605c0f2b4dd6b348969667813097ad94be93b9e26fc46f6ac0db", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:52 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x20380, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="f2fceb61b155dbc9015909370ae60daf271054bf2aabd7093684b9b60c49958a6e6e1007c90ea55145ecef9f3c6314c6451ee5605c0f2b4dd6b348969667813097ad94be93b9e26fc46f6ac0db", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:52 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_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="3cc637f14b016863a98d53c77e12585192051c0aac47d03c3d1808bae1340fa8b2a75ee37b798b49bb056b93870d9afeb8e65fe274d1380600b73917387cd6ad", @ANYRES16=r2, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 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_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="3cc637f14b016863a98d53c77e12585192051c0aac47d03c3d1808bae1340fa8b2a75ee37b798b49bb056b93870d9afeb8e65fe274d1380600b73917387cd6ad", @ANYRES16=r2, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) (async) [ 492.075667] nbd: must specify a device to reconfigure [ 492.085868] nbd: must specify a device to reconfigure 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) 11:53:52 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 0: r0 = socket$inet6_udplite(0xa, 0x2, 0x88) ioctl$ifreq_SIOCGIFINDEX_vcan(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'vcan0\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCADD6RD(r0, 0x89f9, &(0x7f00000000c0)={'ip6_vti0\x00', &(0x7f0000000040)={'sit0\x00', r1, 0x29, 0x0, 0x7, 0x65, 0x54, @private2={0xfc, 0x2, '\x00', 0x1}, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0x7800, 0x1, 0x4, 0x4}}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x20, r4, 0x20, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x20}, 0x1, 0x0, 0x0, 0x80001}, 0x4) socket$inet6_udplite(0xa, 0x2, 0x88) (async) ioctl$ifreq_SIOCGIFINDEX_vcan(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'vcan0\x00'}) (async) ioctl$sock_ipv6_tunnel_SIOCADD6RD(r0, 0x89f9, &(0x7f00000000c0)={'ip6_vti0\x00', &(0x7f0000000040)={'sit0\x00', r1, 0x29, 0x0, 0x7, 0x65, 0x54, @private2={0xfc, 0x2, '\x00', 0x1}, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0x7800, 0x1, 0x4, 0x4}}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x20, r4, 0x20, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x20}, 0x1, 0x0, 0x0, 0x80001}, 0x4) (async) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r3, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r4, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) 11:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 492.209783] nbd: must specify a device to reconfigure 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x20380, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="f2fceb61b155dbc9015909370ae60daf271054bf2aabd7093684b9b60c49958a6e6e1007c90ea55145ecef9f3c6314c6451ee5605c0f2b4dd6b348969667813097ad94be93b9e26fc46f6ac0db", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x20380, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="f2fceb61b155dbc9015909370ae60daf271054bf2aabd7093684b9b60c49958a6e6e1007c90ea55145ecef9f3c6314c6451ee5605c0f2b4dd6b348969667813097ad94be93b9e26fc46f6ac0db", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) 11:53:52 executing program 4: r0 = syz_init_net_socket$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$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="3cc637f14b016863a98d53c77e12585192051c0aac47d03c3d1808bae1340fa8b2a75ee37b798b49bb056b93870d9afeb8e65fe274d1380600b73917387cd6ad", @ANYRES16=r2, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) syz_init_net_socket$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$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB="3cc637f14b016863a98d53c77e12585192051c0aac47d03c3d1808bae1340fa8b2a75ee37b798b49bb056b93870d9afeb8e65fe274d1380600b73917387cd6ad", @ANYRES16=r2, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) (async) 11:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 492.236266] nbd: must specify a device to reconfigure [ 492.250179] nbd: couldn't find a device at index 0 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) 11:53:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) [ 492.282261] nbd: couldn't find a device at index 0 11:53:52 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000040), 0x40, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), r1) sendmsg$L2TP_CMD_TUNNEL_GET(r1, &(0x7f0000000300)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x40080}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x30, r2, 0x300, 0x70bd25, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}, @L2TP_ATTR_COOKIE={0xc, 0xf, 0x80}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x3b}]}, 0x30}, 0x1, 0x0, 0x0, 0x440}, 0x800) sendto$l2tp6(r0, &(0x7f0000000080)="d3fbaaff08c6b7eae29121f3f3bb6b9f4fcc3a69978f29b5595a48e35ca3c351160cb5be51f3fd415b92ab72db99168354a17b5d35a00d083f5926287444725452ae266dde57303bc81c09406e94b3379834430ffce14a840d24", 0x5a, 0x20000896, &(0x7f0000000140)={0xa, 0x0, 0x2, @local, 0x9ce4, 0x2}, 0x20) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000440)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000400)={&(0x7f00000005c0)=ANY=[@ANYRESOCT=0x0, @ANYRES16=0x0, @ANYBLOB="000226bd7000fbdbdf25020000000c000400a0020000000000000c00080007000000000000001c00078008000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32=r0, @ANYBLOB="0800e000374c3f5671c9b1a936f948b6e28188bbb860a88bc44e413abd4ef02a04bbbb7c81159e94dab99a72a05a56eb0419747d85f3f0fc91492542c5c52d2f7a65131fb0afbe8f1f27cae6f9b863cbc17c32438a955ea4e7e4251fd891f261f3c39108e33ec324ca54b57fda98740b86366e22130f53cfe7b3af013e2efcade9eac600"/147, @ANYRES16=r5, @ANYBLOB], 0x48}, 0x1, 0x0, 0x0, 0x810}, 0x24040080) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYRESOCT=0x0, @ANYRES16=r6, @ANYBLOB="010000009a00000000000003000000080001d7660191dc83e8138a97a64e47461a00000000"], 0x1c}}, 0x0) 11:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000040), 0x200, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$MEDIA_REQUEST_IOC_REINIT(r3, 0x7c81, 0x0) getsockopt$inet6_mreq(r2, 0x29, 0x14, &(0x7f0000000080)={@mcast2}, &(0x7f00000000c0)=0x14) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$IOCTL_VMCI_CTX_ADD_NOTIFICATION(r1, 0x7af, &(0x7f0000000000)={@host}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) [ 492.331715] nbd: must specify a device to reconfigure 11:53:52 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$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_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11, 0x1}, 0x14}}, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x20000, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f0000000280)={0x60, r2, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}]}]}, 0x60}, 0x1, 0x0, 0x0, 0x400c0}, 0x24000810) 11:53:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 492.362001] nbd: must specify a device to reconfigure 11:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:52 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:52 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000040), 0x40, 0x0) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), r1) sendmsg$L2TP_CMD_TUNNEL_GET(r1, &(0x7f0000000300)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x40080}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x30, r2, 0x300, 0x70bd25, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}, @L2TP_ATTR_COOKIE={0xc, 0xf, 0x80}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x3b}]}, 0x30}, 0x1, 0x0, 0x0, 0x440}, 0x800) sendto$l2tp6(r0, &(0x7f0000000080)="d3fbaaff08c6b7eae29121f3f3bb6b9f4fcc3a69978f29b5595a48e35ca3c351160cb5be51f3fd415b92ab72db99168354a17b5d35a00d083f5926287444725452ae266dde57303bc81c09406e94b3379834430ffce14a840d24", 0x5a, 0x20000896, &(0x7f0000000140)={0xa, 0x0, 0x2, @local, 0x9ce4, 0x2}, 0x20) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000440)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000400)={&(0x7f00000005c0)=ANY=[@ANYRESOCT=0x0, @ANYRES16=0x0, @ANYBLOB="000226bd7000fbdbdf25020000000c000400a0020000000000000c00080007000000000000001c00078008000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32=r0, @ANYBLOB="0800e000374c3f5671c9b1a936f948b6e28188bbb860a88bc44e413abd4ef02a04bbbb7c81159e94dab99a72a05a56eb0419747d85f3f0fc91492542c5c52d2f7a65131fb0afbe8f1f27cae6f9b863cbc17c32438a955ea4e7e4251fd891f261f3c39108e33ec324ca54b57fda98740b86366e22130f53cfe7b3af013e2efcade9eac600"/147, @ANYRES16=r5, @ANYBLOB], 0x48}, 0x1, 0x0, 0x0, 0x810}, 0x24040080) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYRESOCT=0x0, @ANYRES16=r6, @ANYBLOB="010000009a00000000000003000000080001d7660191dc83e8138a97a64e47461a00000000"], 0x1c}}, 0x0) 11:53:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000040), 0x200, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$MEDIA_REQUEST_IOC_REINIT(r3, 0x7c81, 0x0) (async) getsockopt$inet6_mreq(r2, 0x29, 0x14, &(0x7f0000000080)={@mcast2}, &(0x7f00000000c0)=0x14) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$IOCTL_VMCI_CTX_ADD_NOTIFICATION(r1, 0x7af, &(0x7f0000000000)={@host}) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r3, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r4, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) 11:53:53 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$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_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11, 0x1}, 0x14}}, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x20000, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f0000000280)={0x60, r2, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}]}]}, 0x60}, 0x1, 0x0, 0x0, 0x400c0}, 0x24000810) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11, 0x1}, 0x14}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x20000, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f0000000280)={0x60, r2, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}]}]}, 0x60}, 0x1, 0x0, 0x0, 0x400c0}, 0x24000810) (async) 11:53:53 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000040), 0x40, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f00000001c0), r1) sendmsg$L2TP_CMD_TUNNEL_GET(r1, &(0x7f0000000300)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x40080}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x30, r2, 0x300, 0x70bd25, 0x25dfdbfb, {}, [@L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}, @L2TP_ATTR_COOKIE={0xc, 0xf, 0x80}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x3b}]}, 0x30}, 0x1, 0x0, 0x0, 0x440}, 0x800) sendto$l2tp6(r0, &(0x7f0000000080)="d3fbaaff08c6b7eae29121f3f3bb6b9f4fcc3a69978f29b5595a48e35ca3c351160cb5be51f3fd415b92ab72db99168354a17b5d35a00d083f5926287444725452ae266dde57303bc81c09406e94b3379834430ffce14a840d24", 0x5a, 0x20000896, &(0x7f0000000140)={0xa, 0x0, 0x2, @local, 0x9ce4, 0x2}, 0x20) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000440)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000400)={&(0x7f00000005c0)=ANY=[@ANYRESOCT=0x0, @ANYRES16=0x0, @ANYBLOB="000226bd7000fbdbdf25020000000c000400a0020000000000000c00080007000000000000001c00078008000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32=r0, @ANYBLOB="0800e000374c3f5671c9b1a936f948b6e28188bbb860a88bc44e413abd4ef02a04bbbb7c81159e94dab99a72a05a56eb0419747d85f3f0fc91492542c5c52d2f7a65131fb0afbe8f1f27cae6f9b863cbc17c32438a955ea4e7e4251fd891f261f3c39108e33ec324ca54b57fda98740b86366e22130f53cfe7b3af013e2efcade9eac600"/147, @ANYRES16=r5, @ANYBLOB], 0x48}, 0x1, 0x0, 0x0, 0x810}, 0x24040080) (async, rerun: 32) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYRESOCT=0x0, @ANYRES16=r6, @ANYBLOB="010000009a00000000000003000000080001d7660191dc83e8138a97a64e47461a00000000"], 0x1c}}, 0x0) [ 492.440868] nbd: must specify at least one socket [ 492.450794] nbd: must specify a device to reconfigure 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000040), 0x200, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) ioctl$MEDIA_REQUEST_IOC_REINIT(r3, 0x7c81, 0x0) (async) getsockopt$inet6_mreq(r2, 0x29, 0x14, &(0x7f0000000080)={@mcast2}, &(0x7f00000000c0)=0x14) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) ioctl$IOCTL_VMCI_CTX_ADD_NOTIFICATION(r1, 0x7af, &(0x7f0000000000)={@host}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r3, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r4, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 492.534794] nbd: must specify at least one socket [ 492.551248] nbd: must specify a device to reconfigure [ 492.560377] nbd: must specify a device to reconfigure 11:53:53 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x38, r1, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc2d}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}]}, 0x38}, 0x1, 0x0, 0x0, 0x1}, 0x8880) 11:53:53 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async, rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11, 0x1}, 0x14}}, 0x0) (async, rerun: 64) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x20000, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000140)={&(0x7f0000000280)={0x60, r2, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}]}]}, 0x60}, 0x1, 0x0, 0x0, 0x400c0}, 0x24000810) 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) getsockopt$bt_BT_SECURITY(r1, 0x112, 0x4, &(0x7f0000000000), 0x2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$RDMA_NLDEV_CMD_RES_GET(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x38, 0x1409, 0x10, 0x70bd27, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4008005}, 0x20008042) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000280)=ANY=[@ANYBLOB="00e3ff00", @ANYRES16=r3, @ANYBLOB="cc410b584e01fef7cbabef122224fca89de088b58cc371ff74e98af14e5eed9cc0ff304d51addf100ad26c7aeb6cc31019189a4d6930e3fe3d436da06cb358c0cdb378c2ceed72928b0b333ceabdfcb586f6e85d6f0f714221"], 0x7c}}, 0x0) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000040)=""/60) [ 492.630124] nbd: must specify a device to reconfigure 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 492.654236] nbd: must specify a device to reconfigure 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:53 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async, rerun: 32) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x38, r1, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc2d}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}]}, 0x38}, 0x1, 0x0, 0x0, 0x1}, 0x8880) 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) getsockopt$bt_BT_SECURITY(r1, 0x112, 0x4, &(0x7f0000000000), 0x2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$RDMA_NLDEV_CMD_RES_GET(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x38, 0x1409, 0x10, 0x70bd27, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4008005}, 0x20008042) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000280)=ANY=[@ANYBLOB="00e3ff00", @ANYRES16=r3, @ANYBLOB="cc410b584e01fef7cbabef122224fca89de088b58cc371ff74e98af14e5eed9cc0ff304d51addf100ad26c7aeb6cc31019189a4d6930e3fe3d436da06cb358c0cdb378c2ceed72928b0b333ceabdfcb586f6e85d6f0f714221"], 0x7c}}, 0x0) (async) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000040)=""/60) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r4 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r3, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r4, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) [ 492.721265] nbd: must specify a device to reconfigure 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 492.767212] nbd: must specify a device to reconfigure 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 64) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) getsockopt$bt_BT_SECURITY(r1, 0x112, 0x4, &(0x7f0000000000), 0x2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$RDMA_NLDEV_CMD_RES_GET(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x38, 0x1409, 0x10, 0x70bd27, 0x25dfdbfb, "", [@RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x2}, @RDMA_NLDEV_ATTR_DEV_INDEX={0x8, 0x1, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x4008005}, 0x20008042) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000280)=ANY=[@ANYBLOB="00e3ff00", @ANYRES16=r3, @ANYBLOB="cc410b584e01fef7cbabef122224fca89de088b58cc371ff74e98af14e5eed9cc0ff304d51addf100ad26c7aeb6cc31019189a4d6930e3fe3d436da06cb358c0cdb378c2ceed72928b0b333ceabdfcb586f6e85d6f0f714221"], 0x7c}}, 0x0) (async) ioctl$EVIOCGKEYCODE(r2, 0x80084504, &(0x7f0000000040)=""/60) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) 11:53:53 executing program 4: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x28, r5, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x28}}, 0x44020) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x54, r6, 0xd8f7a47cd4866018, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '-!.--%'}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x54}, 0x1, 0x0, 0x0, 0x48880}, 0x4000081) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000240)=ANY=[@ANYBLOB="1400000081bebedeee9bd68afd647c01540b847ef7053de36b73b8069f6990967116f88ccafb62d76cb8148af37786ff6b2283208e9107412bbcc34fa5e6d990bf0b353d515c5c50", @ANYRES16=r7, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) 11:53:53 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)={0x38, r1, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc2d}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}]}, 0x38}, 0x1, 0x0, 0x0, 0x1}, 0x8880) [ 492.814138] nbd: must specify a device to reconfigure 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 492.862331] nbd: must specify a device to reconfigure 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 492.892512] nbd: must specify at least one socket 11:53:53 executing program 4: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x28, r5, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x28}}, 0x44020) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x54, r6, 0xd8f7a47cd4866018, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '-!.--%'}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x54}, 0x1, 0x0, 0x0, 0x48880}, 0x4000081) (async) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000240)=ANY=[@ANYBLOB="1400000081bebedeee9bd68afd647c01540b847ef7053de36b73b8069f6990967116f88ccafb62d76cb8148af37786ff6b2283208e9107412bbcc34fa5e6d990bf0b353d515c5c50", @ANYRES16=r7, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="3f000004", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:53 executing program 0: r0 = syz_init_net_socket$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$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, r2, 0x100, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x4000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 492.987520] nbd: must specify at least one socket [ 493.002279] nbd: must specify a device to reconfigure 11:53:53 executing program 4: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x28, r5, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x28}}, 0x44020) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x54, r6, 0xd8f7a47cd4866018, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '-!.--%'}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x54}, 0x1, 0x0, 0x0, 0x48880}, 0x4000081) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000240)=ANY=[@ANYBLOB="1400000081bebedeee9bd68afd647c01540b847ef7053de36b73b8069f6990967116f88ccafb62d76cb8148af37786ff6b2283208e9107412bbcc34fa5e6d990bf0b353d515c5c50", @ANYRES16=r7, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) syz_init_net_socket$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$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x28, r5, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x28}}, 0x44020) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x54, r6, 0xd8f7a47cd4866018, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '-!.--%'}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x54}, 0x1, 0x0, 0x0, 0x48880}, 0x4000081) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000240)=ANY=[@ANYBLOB="1400000081bebedeee9bd68afd647c01540b847ef7053de36b73b8069f6990967116f88ccafb62d76cb8148af37786ff6b2283208e9107412bbcc34fa5e6d990bf0b353d515c5c50", @ANYRES16=r7, @ANYBLOB="110b000000000000000002000000"], 0x14}}, 0x0) (async) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 11:53:53 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 493.064995] nbd: must specify at least one socket 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 64) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) (rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="3f000004", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) [ 493.087178] nbd: couldn't find a device at index 0 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:53 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(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, r2, 0x100, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x4000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 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_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x800) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, r2, 0x100, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x4000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) 11:53:53 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 493.109823] nbd: must specify a device to reconfigure [ 493.129569] nbd: must specify at least one socket 11:53:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$dri(&(0x7f0000000000), 0x3f, 0x4080) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(0xffffffffffffffff, 0xc02064b2, &(0x7f0000000100)={0x9, 0xfffffffd, 0x3ff, 0x0, 0x0}) ioctl$DRM_IOCTL_RM_CTX(r1, 0xc0086421, &(0x7f0000000180)) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r1, 0xc00464b4, &(0x7f0000000140)={r2}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r4, 0xb11}, 0x14}}, 0x0) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 493.198584] nbd: must specify a device to reconfigure 11:53:53 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 493.219442] nbd: must specify at least one socket 11:53:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$dri(&(0x7f0000000000), 0x3f, 0x4080) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(0xffffffffffffffff, 0xc02064b2, &(0x7f0000000100)={0x9, 0xfffffffd, 0x3ff, 0x0, 0x0}) ioctl$DRM_IOCTL_RM_CTX(r1, 0xc0086421, &(0x7f0000000180)) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r1, 0xc00464b4, &(0x7f0000000140)={r2}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r4, 0xb11}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$dri(&(0x7f0000000000), 0x3f, 0x4080) (async) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(0xffffffffffffffff, 0xc02064b2, &(0x7f0000000100)={0x9, 0xfffffffd, 0x3ff}) (async) ioctl$DRM_IOCTL_RM_CTX(r1, 0xc0086421, &(0x7f0000000180)) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r1, 0xc00464b4, &(0x7f0000000140)={r2}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r4, 0xb11}, 0x14}}, 0x0) (async) 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="3f000004", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB="3f000004", @ANYRES16=r1, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) [ 493.261632] nbd: couldn't find a device at index 0 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 493.294198] nbd: must specify a device to reconfigure 11:53:53 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(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x800) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, r2, 0x100, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x4000) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async, rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) syz_open_dev$media(&(0x7f0000000080), 0xec, 0x200200) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x8000, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="8714ce57a951dbbb4ecbddb735dc66d47f0da1b06e662b23446ff3d5277d01618ed0780fe123342867173ba09a5c80d5c0c7bdef", @ANYRES16=r1, @ANYBLOB="01802cbd70004ddbdf2501"], 0x7c}}, 0x0) 11:53:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_open_dev$dri(&(0x7f0000000000), 0x3f, 0x4080) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(0xffffffffffffffff, 0xc02064b2, &(0x7f0000000100)={0x9, 0xfffffffd, 0x3ff, 0x0, 0x0}) ioctl$DRM_IOCTL_RM_CTX(r1, 0xc0086421, &(0x7f0000000180)) (async, rerun: 64) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r1, 0xc00464b4, &(0x7f0000000140)={r2}) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r4, 0xb11}, 0x14}}, 0x0) 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 493.386731] nbd: must specify a device to reconfigure 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) syz_open_dev$media(&(0x7f0000000080), 0xec, 0x200200) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x8000, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="8714ce57a951dbbb4ecbddb735dc66d47f0da1b06e662b23446ff3d5277d01618ed0780fe123342867173ba09a5c80d5c0c7bdef", @ANYRES16=r1, @ANYBLOB="01802cbd70004ddbdf2501"], 0x7c}}, 0x0) 11:53:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 493.409765] nbd: must specify at least one socket [ 493.427286] nbd: couldn't find a device at index 0 11:53:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) syz_open_dev$media(&(0x7f0000000080), 0xec, 0x200200) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x8000, 0x0) (async, rerun: 64) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000000)=ANY=[@ANYBLOB="8714ce57a951dbbb4ecbddb735dc66d47f0da1b06e662b23446ff3d5277d01618ed0780fe123342867173ba09a5c80d5c0c7bdef", @ANYRES16=r1, @ANYBLOB="01802cbd70004ddbdf2501"], 0x7c}}, 0x0) [ 493.458637] nbd: couldn't find a device at index 0 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 493.483396] nbd: couldn't find a device at index 0 [ 493.501174] nbd: must specify a device to reconfigure [ 493.518665] nbd: couldn't find a device at index 0 [ 493.525417] nbd: couldn't find a device at index 0 [ 493.539606] nbd: couldn't find a device at index 0 [ 493.564262] nbd: couldn't find a device at index 0 [ 493.582193] nbd: couldn't find a device at index 0 [ 493.593517] nbd: couldn't find a device at index 0 [ 493.598539] nbd: couldn't find a device at index 0 [ 493.604393] nbd: couldn't find a device at index 0 [ 493.613749] nbd: couldn't find a device at index 0 [ 493.618794] nbd: couldn't find a device at index 0 [ 493.629214] nbd: couldn't find a device at index 0 [ 493.638275] nbd: couldn't find a device at index 0 [ 493.643924] nbd: couldn't find a device at index 0 [ 493.652253] nbd: couldn't find a device at index 0 [ 493.661109] nbd: couldn't find a device at index 0 [ 493.676489] nbd: couldn't find a device at index 0 [ 493.681463] nbd: couldn't find a device at index 0 [ 493.686573] nbd: couldn't find a device at index 0 [ 493.691541] nbd: couldn't find a device at index 0 [ 493.699527] nbd: couldn't find a device at index 0 [ 493.704580] nbd: couldn't find a device at index 0 [ 493.709599] nbd: couldn't find a device at index 0 11:53:54 executing program 0: ioctl$TUNGETIFF(0xffffffffffffffff, 0x800454d2, &(0x7f00000001c0)={'veth0_virt_wifi\x00'}) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$TUNSETOFFLOAD(r2, 0x400454d0, 0x4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="0100000000000000000000fe6f4b6a580b7030c987"], 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0xf8ac2, 0x0) getsockname$l2tp6(r4, &(0x7f0000000200)={0xa, 0x0, 0x0, @private1}, &(0x7f0000000240)=0x20) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000440)={0x38, r3, 0x300, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xff}]}, 0x38}, 0x1, 0x0, 0x0, 0xc810}, 0x1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 11:53:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x40, r5, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}]}, 0x40}, 0x1, 0x0, 0x0, 0x1}, 0x4008090) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(r1, 0x7b0, &(0x7f0000000000)={@host, 0xffffffff}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) [ 493.717001] nbd: couldn't find a device at index 0 [ 493.721962] nbd: couldn't find a device at index 0 [ 493.726996] nbd: couldn't find a device at index 0 [ 493.731965] nbd: couldn't find a device at index 0 [ 493.738296] nbd: couldn't find a device at index 0 [ 493.743390] nbd: couldn't find a device at index 0 [ 493.748384] nbd: couldn't find a device at index 0 [ 493.753456] nbd: couldn't find a device at index 0 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(r1, 0x7b0, &(0x7f0000000000)={@host, 0xffffffff}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 0: ioctl$TUNGETIFF(0xffffffffffffffff, 0x800454d2, &(0x7f00000001c0)={'veth0_virt_wifi\x00'}) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) ioctl$TUNSETOFFLOAD(r2, 0x400454d0, 0x4) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="0100000000000000000000fe6f4b6a580b7030c987"], 0x1c}}, 0x0) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0xf8ac2, 0x0) getsockname$l2tp6(r4, &(0x7f0000000200)={0xa, 0x0, 0x0, @private1}, &(0x7f0000000240)=0x20) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000440)={0x38, r3, 0x300, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xff}]}, 0x38}, 0x1, 0x0, 0x0, 0xc810}, 0x1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 493.807679] nbd: must specify at least one socket 11:53:54 executing program 4: r0 = syz_init_net_socket$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) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x40, r5, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}]}, 0x40}, 0x1, 0x0, 0x0, 0x1}, 0x4008090) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(r1, 0x7b0, &(0x7f0000000000)={@host, 0xffffffff}) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 493.849776] nbd: must specify a size in bytes for the device 11:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x40, r5, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}]}, 0x40}, 0x1, 0x0, 0x0, 0x1}, 0x4008090) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) syz_init_net_socket$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) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x40, r5, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x80000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}]}, 0x40}, 0x1, 0x0, 0x0, 0x1}, 0x4008090) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) (async) 11:53:54 executing program 0: ioctl$TUNGETIFF(0xffffffffffffffff, 0x800454d2, &(0x7f00000001c0)={'veth0_virt_wifi\x00'}) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$TUNSETOFFLOAD(r2, 0x400454d0, 0x4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="0100000000000000000000fe6f4b6a580b7030c987"], 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0xf8ac2, 0x0) getsockname$l2tp6(r4, &(0x7f0000000200)={0xa, 0x0, 0x0, @private1}, &(0x7f0000000240)=0x20) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000440)={0x38, r3, 0x300, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xff}]}, 0x38}, 0x1, 0x0, 0x0, 0xc810}, 0x1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$TUNGETIFF(0xffffffffffffffff, 0x800454d2, &(0x7f00000001c0)={'veth0_virt_wifi\x00'}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) ioctl$TUNSETOFFLOAD(r2, 0x400454d0, 0x4) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="0100000000000000000000fe6f4b6a580b7030c987"], 0x1c}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0xf8ac2, 0x0) (async) getsockname$l2tp6(r4, &(0x7f0000000200)={0xa, 0x0, 0x0, @private1}, &(0x7f0000000240)=0x20) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000440)={0x38, r3, 0x300, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xff}]}, 0x38}, 0x1, 0x0, 0x0, 0xc810}, 0x1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x640000, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x2480c0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socket$inet_udp(0x2, 0x2, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(r1, 0x7b0, &(0x7f00000000c0)={@host, 0x2}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x10000, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=ANY=[], 0x7c}}, 0x20000000) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 493.951964] nbd: must specify a size in bytes for the device 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x640000, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x2480c0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socket$inet_udp(0x2, 0x2, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(r1, 0x7b0, &(0x7f00000000c0)={@host, 0x2}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x10000, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=ANY=[], 0x7c}}, 0x20000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x640000, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x2480c0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socket$inet_udp(0x2, 0x2, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(r1, 0x7b0, &(0x7f00000000c0)={@host, 0x2}) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x10000, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=ANY=[], 0x7c}}, 0x20000000) (async) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 494.001888] nbd: must specify at least one socket 11:53:54 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) getsockopt$inet6_mreq(0xffffffffffffffff, 0x29, 0x1c, &(0x7f0000000040)={@rand_addr, 0x0}, &(0x7f0000000080)=0x14) setsockopt$inet_pktinfo(r0, 0x0, 0x8, &(0x7f00000000c0)={r1, @broadcast, @private=0xa010101}, 0xc) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 494.050595] nbd: must specify a size in bytes for the device 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x640000, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x2480c0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socket$inet_udp(0x2, 0x2, 0x0) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(r1, 0x7b0, &(0x7f00000000c0)={@host, 0x2}) (async, rerun: 64) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x10000, 0x0) (async, rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000080)=ANY=[], 0x7c}}, 0x20000000) 11:53:54 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_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x20000000) 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 494.117353] nbd: couldn't find a device at index 0 11:53:54 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) getsockopt$inet6_mreq(0xffffffffffffffff, 0x29, 0x1c, &(0x7f0000000040)={@rand_addr, 0x0}, &(0x7f0000000080)=0x14) setsockopt$inet_pktinfo(r0, 0x0, 0x8, &(0x7f00000000c0)={r1, @broadcast, @private=0xa010101}, 0xc) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x20000000) 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 4: 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_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x20000000) 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYBLOB="e473fecefb0087984d7f9dc21ae37b", @ANYBLOB="bd7000fb8972da592d1000"], 0x7c}}, 0x0) 11:53:54 executing program 4: r0 = syz_init_net_socket$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$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r2, 0xb11}, 0x14}}, 0x0) 11:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x20000000) 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:54 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) getsockopt$inet6_mreq(0xffffffffffffffff, 0x29, 0x1c, &(0x7f0000000040)={@rand_addr, 0x0}, &(0x7f0000000080)=0x14) setsockopt$inet_pktinfo(r0, 0x0, 0x8, &(0x7f00000000c0)={r1, @broadcast, @private=0xa010101}, 0xc) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:54 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$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r1) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd700022a0fbdbdf0505"], 0x7c}}, 0x0) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(0xffffffffffffffff, 0x7a6, &(0x7f00000001c0)={0xfe0000000000000, 0x81, 0x40, 0x77, 0x37, 0x8fd7}) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x34, r4, 0x200, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x835}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x34}, 0x1, 0x0, 0x0, 0x48800}, 0xc000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0xffffffffffffffd6, &(0x7f0000000080)={&(0x7f0000000380)=ANY=[@ANYBLOB="d07d7852954774ff97f2c42a7dbf18eb5357807078d65ec87b31f3ea1e6a4e71c54774714a1c0304f08e47556e9845721ed00ac0cdff09c03664f699e4d0df90db0e888388c24abd9aceffa2ab435bce000000000000000000000000ebdf15a051c2ff644a4d808fcda06e8388b5ad36a59c141219b002c28cfe7a437b0cef9d25c24db0c86224e8f4a3f7b8395703cdf2af3ca76dc097589c7cfd11746329b093276e8abef96046e3ffcc1a432fd29a0eeaef5d7cea06095f0bb99d61e01b0d797539b4279a259053c3cb3994a37916539c5a09021376e1bb359e857d10265059a872", @ANYRES16=r2, @ANYBLOB="110bffffaa678eada1bddfe3f46cff0008000002000000"], 0x14}}, 0x0) 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYBLOB="e473fecefb0087984d7f9dc21ae37b", @ANYBLOB="bd7000fb8972da592d1000"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYBLOB="e473fecefb0087984d7f9dc21ae37b", @ANYBLOB="bd7000fb8972da592d1000"], 0x7c}}, 0x0) (async) 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 4: r0 = syz_init_net_socket$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) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r1) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd700022a0fbdbdf0505"], 0x7c}}, 0x0) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(0xffffffffffffffff, 0x7a6, &(0x7f00000001c0)={0xfe0000000000000, 0x81, 0x40, 0x77, 0x37, 0x8fd7}) (async, rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x34, r4, 0x200, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x835}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x34}, 0x1, 0x0, 0x0, 0x48800}, 0xc000) (rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0xffffffffffffffd6, &(0x7f0000000080)={&(0x7f0000000380)=ANY=[@ANYBLOB="d07d7852954774ff97f2c42a7dbf18eb5357807078d65ec87b31f3ea1e6a4e71c54774714a1c0304f08e47556e9845721ed00ac0cdff09c03664f699e4d0df90db0e888388c24abd9aceffa2ab435bce000000000000000000000000ebdf15a051c2ff644a4d808fcda06e8388b5ad36a59c141219b002c28cfe7a437b0cef9d25c24db0c86224e8f4a3f7b8395703cdf2af3ca76dc097589c7cfd11746329b093276e8abef96046e3ffcc1a432fd29a0eeaef5d7cea06095f0bb99d61e01b0d797539b4279a259053c3cb3994a37916539c5a09021376e1bb359e857d10265059a872", @ANYRES16=r2, @ANYBLOB="110bffffaa678eada1bddfe3f46cff0008000002000000"], 0x14}}, 0x0) 11:53:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x20000000) [ 494.358902] nbd: couldn't find a device at index 0 11:53:54 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x2500, 0x0) 11:53:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r1) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd700022a0fbdbdf0505"], 0x7c}}, 0x0) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(0xffffffffffffffff, 0x7a6, &(0x7f00000001c0)={0xfe0000000000000, 0x81, 0x40, 0x77, 0x37, 0x8fd7}) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x34, r4, 0x200, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x835}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x34}, 0x1, 0x0, 0x0, 0x48800}, 0xc000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0xffffffffffffffd6, &(0x7f0000000080)={&(0x7f0000000380)=ANY=[@ANYBLOB="d07d7852954774ff97f2c42a7dbf18eb5357807078d65ec87b31f3ea1e6a4e71c54774714a1c0304f08e47556e9845721ed00ac0cdff09c03664f699e4d0df90db0e888388c24abd9aceffa2ab435bce000000000000000000000000ebdf15a051c2ff644a4d808fcda06e8388b5ad36a59c141219b002c28cfe7a437b0cef9d25c24db0c86224e8f4a3f7b8395703cdf2af3ca76dc097589c7cfd11746329b093276e8abef96046e3ffcc1a432fd29a0eeaef5d7cea06095f0bb99d61e01b0d797539b4279a259053c3cb3994a37916539c5a09021376e1bb359e857d10265059a872", @ANYRES16=r2, @ANYBLOB="110bffffaa678eada1bddfe3f46cff0008000002000000"], 0x14}}, 0x0) syz_init_net_socket$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) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r1) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd700022a0fbdbdf0505"], 0x7c}}, 0x0) (async) ioctl$IOCTL_VMCI_NOTIFICATIONS_RECEIVE(0xffffffffffffffff, 0x7a6, &(0x7f00000001c0)={0xfe0000000000000, 0x81, 0x40, 0x77, 0x37, 0x8fd7}) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x34, r4, 0x200, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x835}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x34}, 0x1, 0x0, 0x0, 0x48800}, 0xc000) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0xffffffffffffffd6, &(0x7f0000000080)={&(0x7f0000000380)=ANY=[@ANYBLOB="d07d7852954774ff97f2c42a7dbf18eb5357807078d65ec87b31f3ea1e6a4e71c54774714a1c0304f08e47556e9845721ed00ac0cdff09c03664f699e4d0df90db0e888388c24abd9aceffa2ab435bce000000000000000000000000ebdf15a051c2ff644a4d808fcda06e8388b5ad36a59c141219b002c28cfe7a437b0cef9d25c24db0c86224e8f4a3f7b8395703cdf2af3ca76dc097589c7cfd11746329b093276e8abef96046e3ffcc1a432fd29a0eeaef5d7cea06095f0bb99d61e01b0d797539b4279a259053c3cb3994a37916539c5a09021376e1bb359e857d10265059a872", @ANYRES16=r2, @ANYBLOB="110bffffaa678eada1bddfe3f46cff0008000002000000"], 0x14}}, 0x0) (async) 11:53:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYBLOB="e473fecefb0087984d7f9dc21ae37b", @ANYBLOB="bd7000fb8972da592d1000"], 0x7c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (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$nbd(&(0x7f0000000000), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000040)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYBLOB="e473fecefb0087984d7f9dc21ae37b", @ANYBLOB="bd7000fb8972da592d1000"], 0x7c}}, 0x0) (async) 11:53:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 494.415565] nbd: must specify at least one socket 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x20000000) 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 494.464540] nbd: couldn't find a device at index 0 [ 494.480967] nbd: must specify at least one socket 11:53:55 executing program 4: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x44, 0x0, 0x400, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xbee}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7ed35531}]}, 0x44}, 0x1, 0x0, 0x0, 0x40}, 0x4000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) 11:53:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000180), r1) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000300)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000001c0)={&(0x7f0000000280)={0x68, r2, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@L2TP_ATTR_UDP_CSUM={0x5}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x3}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @empty}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @L2TP_ATTR_LNS_MODE={0x5}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}]}, 0x68}}, 0x4004041) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x40, 0x0) ioctl$EVIOCSMASK(r3, 0x40104593, &(0x7f0000000080)={0x5, 0x42, &(0x7f0000000000)="903ca10ce348b944bd1f6f41b1338e48092efadab5e442624e4d7dfe3647126c617d7db743695390eeaf09678fc194e0824ddb54591fdea59a4d62ad6fe6a7e7e4d3"}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async, rerun: 64) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x2500, 0x0) (rerun: 64) 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x20000000) 11:53:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000180), r1) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000300)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000001c0)={&(0x7f0000000280)={0x68, r2, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@L2TP_ATTR_UDP_CSUM={0x5}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x3}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @empty}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @L2TP_ATTR_LNS_MODE={0x5}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}]}, 0x68}}, 0x4004041) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x40, 0x0) ioctl$EVIOCSMASK(r3, 0x40104593, &(0x7f0000000080)={0x5, 0x42, &(0x7f0000000000)="903ca10ce348b944bd1f6f41b1338e48092efadab5e442624e4d7dfe3647126c617d7db743695390eeaf09678fc194e0824ddb54591fdea59a4d62ad6fe6a7e7e4d3"}) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x20000000) 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:55 executing program 4: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x44, 0x0, 0x400, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xbee}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7ed35531}]}, 0x44}, 0x1, 0x0, 0x0, 0x40}, 0x4000) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r4) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) [ 494.604198] nbd: couldn't find a device at index 0 [ 494.609238] nbd: couldn't find a device at index 0 [ 494.629113] nbd: couldn't find a device at index 0 [ 494.649474] nbd: must specify at least one socket 11:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 494.661166] nbd: couldn't find a device at index 0 11:53:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000180), r1) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000300)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000001c0)={&(0x7f0000000280)={0x68, r2, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@L2TP_ATTR_UDP_CSUM={0x5}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x3}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @empty}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @L2TP_ATTR_LNS_MODE={0x5}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}]}, 0x68}}, 0x4004041) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x40, 0x0) ioctl$EVIOCSMASK(r3, 0x40104593, &(0x7f0000000080)={0x5, 0x42, &(0x7f0000000000)="903ca10ce348b944bd1f6f41b1338e48092efadab5e442624e4d7dfe3647126c617d7db743695390eeaf09678fc194e0824ddb54591fdea59a4d62ad6fe6a7e7e4d3"}) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x20000000) 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 494.686143] nbd: couldn't find a device at index 0 11:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 494.732084] nbd: couldn't find a device at index 0 [ 494.761496] nbd: couldn't find a device at index 0 [ 494.782874] nbd: couldn't find a device at index 0 [ 494.789833] nbd: couldn't find a device at index 0 [ 494.823553] nbd: couldn't find a device at index 0 [ 494.831986] nbd: couldn't find a device at index 0 [ 494.838542] nbd: couldn't find a device at index 0 [ 494.845035] nbd: couldn't find a device at index 0 [ 494.850091] nbd: couldn't find a device at index 0 [ 494.858330] nbd: couldn't find a device at index 0 [ 494.863972] nbd: couldn't find a device at index 0 [ 494.869055] nbd: couldn't find a device at index 0 [ 494.875215] nbd: couldn't find a device at index 0 [ 494.880290] nbd: couldn't find a device at index 0 [ 494.886620] nbd: couldn't find a device at index 0 [ 494.891684] nbd: couldn't find a device at index 0 [ 494.897832] nbd: couldn't find a device at index 0 [ 494.903502] nbd: couldn't find a device at index 0 [ 494.908563] nbd: couldn't find a device at index 0 [ 494.913937] nbd: couldn't find a device at index 0 [ 494.918945] nbd: couldn't find a device at index 0 [ 494.924156] nbd: couldn't find a device at index 0 [ 494.929138] nbd: couldn't find a device at index 0 [ 494.934303] nbd: couldn't find a device at index 0 [ 494.939858] nbd: couldn't find a device at index 0 [ 494.944977] nbd: couldn't find a device at index 0 [ 494.949946] nbd: couldn't find a device at index 0 [ 494.954973] nbd: couldn't find a device at index 0 [ 494.959952] nbd: couldn't find a device at index 0 [ 494.965006] nbd: couldn't find a device at index 0 [ 494.969973] nbd: couldn't find a device at index 0 [ 494.975546] nbd: couldn't find a device at index 0 [ 494.980509] nbd: couldn't find a device at index 0 [ 494.985905] nbd: couldn't find a device at index 0 [ 494.990898] nbd: couldn't find a device at index 0 [ 494.995939] nbd: couldn't find a device at index 0 [ 495.000908] nbd: couldn't find a device at index 0 [ 495.005966] nbd: couldn't find a device at index 0 [ 495.010931] nbd: couldn't find a device at index 0 [ 495.015979] nbd: couldn't find a device at index 0 [ 495.020948] nbd: couldn't find a device at index 0 [ 495.025996] nbd: couldn't find a device at index 0 [ 495.030971] nbd: couldn't find a device at index 0 [ 495.036005] nbd: couldn't find a device at index 0 [ 495.041032] nbd: couldn't find a device at index 0 [ 495.046117] nbd: couldn't find a device at index 0 [ 495.051084] nbd: couldn't find a device at index 0 [ 495.056109] nbd: couldn't find a device at index 0 [ 495.061075] nbd: couldn't find a device at index 0 [ 495.066259] nbd: couldn't find a device at index 0 [ 495.071249] nbd: couldn't find a device at index 0 11:53:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x2500, 0x0) 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) bind(r1, &(0x7f0000000000)=@alg={0x26, 'skcipher\x00', 0x0, 0x0, 'ctr-aes-neon\x00'}, 0x80) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x44, 0x0, 0x400, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xbee}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7ed35531}]}, 0x44}, 0x1, 0x0, 0x0, 0x40}, 0x4000) (async, rerun: 32) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) (async, rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r4) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) 11:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 495.076292] nbd: couldn't find a device at index 0 [ 495.081259] nbd: couldn't find a device at index 0 [ 495.086307] nbd: couldn't find a device at index 0 [ 495.091277] nbd: couldn't find a device at index 0 [ 495.096303] nbd: couldn't find a device at index 0 [ 495.101272] nbd: couldn't find a device at index 0 [ 495.106856] nbd: couldn't find a device at index 0 [ 495.111822] nbd: couldn't find a device at index 0 [ 495.116853] nbd: couldn't find a device at index 0 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x20000000) 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 495.171848] nla_parse: 105 callbacks suppressed [ 495.171854] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 495.202013] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 11:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) getpeername$l2tp6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @private0}, &(0x7f0000000040)=0x20) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)={0x1c, r1, 0x200, 0x0, 0x200, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xffffffffffffff28}, 0x1, 0x0, 0x0, 0x20044080}, 0x4c001) 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x20000000) 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 495.214572] netlink: 43 bytes leftover after parsing attributes in process `syz-executor.2'. 11:53:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) bind(r1, &(0x7f0000000000)=@alg={0x26, 'skcipher\x00', 0x0, 0x0, 'ctr-aes-neon\x00'}, 0x80) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:55 executing program 4: write$khugepaged_scan(0xffffffffffffffff, &(0x7f0000000100), 0x8) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000001c0), 0x52040, 0x0) ioctl$TUNSETCARRIER(r2, 0x400454e2, &(0x7f0000000240)) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000040)={0x7fff, 0xfffffbff, 0x6}) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000140)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="110b2abd7000000000000200000043c29cd962265db528f5e1aaec155b0523cefa2b3dd8bd001a036a8fa7be1ebca5675d85d9d5929cf4a076c16692d970041d02758ea5f75455242f3f420a99ea90ec8fb5635bcaba4d991bb1fe1927bd0667fad8e15a8ee603ca2ca7ace83cffdc9b6542c20fa7129b277616"], 0x14}, 0x1, 0x0, 0x0, 0x4c880}, 0x0) 11:53:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) getpeername$l2tp6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @private0}, &(0x7f0000000040)=0x20) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)={0x1c, r1, 0x200, 0x0, 0x200, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xffffffffffffff28}, 0x1, 0x0, 0x0, 0x20044080}, 0x4c001) 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x20000000) [ 495.263550] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 495.296527] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 11:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) bind(r1, &(0x7f0000000000)=@alg={0x26, 'skcipher\x00', 0x0, 0x0, 'ctr-aes-neon\x00'}, 0x80) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 495.347553] netlink: 43 bytes leftover after parsing attributes in process `syz-executor.2'. 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x20000000) 11:53:55 executing program 4: write$khugepaged_scan(0xffffffffffffffff, &(0x7f0000000100), 0x8) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000001c0), 0x52040, 0x0) ioctl$TUNSETCARRIER(r2, 0x400454e2, &(0x7f0000000240)) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000040)={0x7fff, 0xfffffbff, 0x6}) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000140)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="110b2abd7000000000000200000043c29cd962265db528f5e1aaec155b0523cefa2b3dd8bd001a036a8fa7be1ebca5675d85d9d5929cf4a076c16692d970041d02758ea5f75455242f3f420a99ea90ec8fb5635bcaba4d991bb1fe1927bd0667fad8e15a8ee603ca2ca7ace83cffdc9b6542c20fa7129b277616"], 0x14}, 0x1, 0x0, 0x0, 0x4c880}, 0x0) 11:53:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) getpeername$l2tp6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @private0}, &(0x7f0000000040)=0x20) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)={0x1c, r1, 0x200, 0x0, 0x200, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xffffffffffffff28}, 0x1, 0x0, 0x0, 0x20044080}, 0x4c001) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) getpeername$l2tp6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @private0}, &(0x7f0000000040)=0x20) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)={0x1c, r1, 0x200, 0x0, 0x200, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xffffffffffffff28}, 0x1, 0x0, 0x0, 0x20044080}, 0x4c001) (async) [ 495.401799] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 495.429713] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 11:53:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x20000000) 11:53:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = syz_open_dev$evdev(&(0x7f0000000000), 0x80000000, 0x0) ioctl$EVIOCSMASK(r1, 0x40104593, &(0x7f0000000080)={0x3, 0x19, &(0x7f0000000040)="3935c3de31277f20e6c37a7871663d2b3d8df64894bedac1e7"}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x210000, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000280)=ANY=[@ANYBLOB="3f000000a2ae2a5d3d19cdf0d87bb7bce5fcaa20503509ef76711ccca568ac00d3562083c15a8b49af05c42914b70ee5b8f830965d", @ANYRES64=r2, @ANYRESDEC=r2], 0x7c}, 0x1, 0x0, 0x0, 0x42}, 0x4880) [ 495.445865] netlink: 43 bytes leftover after parsing attributes in process `syz-executor.2'. 11:53:56 executing program 4: write$khugepaged_scan(0xffffffffffffffff, &(0x7f0000000100), 0x8) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000001c0), 0x52040, 0x0) ioctl$TUNSETCARRIER(r2, 0x400454e2, &(0x7f0000000240)) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000040)={0x7fff, 0xfffffbff, 0x6}) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000140)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="110b2abd7000000000000200000043c29cd962265db528f5e1aaec155b0523cefa2b3dd8bd001a036a8fa7be1ebca5675d85d9d5929cf4a076c16692d970041d02758ea5f75455242f3f420a99ea90ec8fb5635bcaba4d991bb1fe1927bd0667fad8e15a8ee603ca2ca7ace83cffdc9b6542c20fa7129b277616"], 0x14}, 0x1, 0x0, 0x0, 0x4c880}, 0x0) write$khugepaged_scan(0xffffffffffffffff, &(0x7f0000000100), 0x8) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$tun(0xffffffffffffff9c, &(0x7f00000001c0), 0x52040, 0x0) (async) ioctl$TUNSETCARRIER(r2, 0x400454e2, &(0x7f0000000240)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r3, 0xc02064b2, &(0x7f0000000040)={0x7fff, 0xfffffbff, 0x6}) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000140)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="110b2abd7000000000000200000043c29cd962265db528f5e1aaec155b0523cefa2b3dd8bd001a036a8fa7be1ebca5675d85d9d5929cf4a076c16692d970041d02758ea5f75455242f3f420a99ea90ec8fb5635bcaba4d991bb1fe1927bd0667fad8e15a8ee603ca2ca7ace83cffdc9b6542c20fa7129b277616"], 0x14}, 0x1, 0x0, 0x0, 0x4c880}, 0x0) (async) 11:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="82ff19a4390c0aff00000000"], 0x1c}}, 0x0) 11:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x14, r1, 0x1}, 0x14}}, 0x20000000) 11:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = syz_open_dev$evdev(&(0x7f0000000000), 0x80000000, 0x0) ioctl$EVIOCSMASK(r1, 0x40104593, &(0x7f0000000080)={0x3, 0x19, &(0x7f0000000040)="3935c3de31277f20e6c37a7871663d2b3d8df64894bedac1e7"}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x210000, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000280)=ANY=[@ANYBLOB="3f000000a2ae2a5d3d19cdf0d87bb7bce5fcaa20503509ef76711ccca568ac00d3562083c15a8b49af05c42914b70ee5b8f830965d", @ANYRES64=r2, @ANYRESDEC=r2], 0x7c}, 0x1, 0x0, 0x0, 0x42}, 0x4880) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) syz_open_dev$evdev(&(0x7f0000000000), 0x80000000, 0x0) (async) ioctl$EVIOCSMASK(r1, 0x40104593, &(0x7f0000000080)={0x3, 0x19, &(0x7f0000000040)="3935c3de31277f20e6c37a7871663d2b3d8df64894bedac1e7"}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x210000, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000280)=ANY=[@ANYBLOB="3f000000a2ae2a5d3d19cdf0d87bb7bce5fcaa20503509ef76711ccca568ac00d3562083c15a8b49af05c42914b70ee5b8f830965d", @ANYRES64=r2, @ANYRESDEC=r2], 0x7c}, 0x1, 0x0, 0x0, 0x42}, 0x4880) (async) [ 495.509425] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 11:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="82ff19a4390c0aff00000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="82ff19a4390c0aff00000000"], 0x1c}}, 0x0) (async) 11:53:56 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r1, 0xb11}, 0x14}}, 0x0) 11:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x20000000) [ 495.590416] nbd: must specify a device to reconfigure 11:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x14, r1, 0x1}, 0x14}}, 0x20000000) 11:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x20000000) 11:53:56 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r1, 0xb11}, 0x14}}, 0x0) 11:53:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) r1 = syz_open_dev$evdev(&(0x7f0000000000), 0x80000000, 0x0) ioctl$EVIOCSMASK(r1, 0x40104593, &(0x7f0000000080)={0x3, 0x19, &(0x7f0000000040)="3935c3de31277f20e6c37a7871663d2b3d8df64894bedac1e7"}) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x210000, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async, rerun: 64) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 64) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000280)=ANY=[@ANYBLOB="3f000000a2ae2a5d3d19cdf0d87bb7bce5fcaa20503509ef76711ccca568ac00d3562083c15a8b49af05c42914b70ee5b8f830965d", @ANYRES64=r2, @ANYRESDEC=r2], 0x7c}, 0x1, 0x0, 0x0, 0x42}, 0x4880) 11:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="82ff19a4390c0aff00000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="82ff19a4390c0aff00000000"], 0x1c}}, 0x0) (async) 11:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x20000000) [ 495.683721] nbd: must specify a device to reconfigure 11:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x14, r1, 0x1}, 0x14}}, 0x20000000) 11:53:56 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r1, 0xb11}, 0x14}}, 0x0) 11:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x20000000) 11:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}}, 0x0) 11:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x14, r1, 0x1}, 0x14}}, 0x20000000) 11:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) [ 495.809509] nbd: must specify a device to reconfigure 11:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x14, r1, 0x1}, 0x14}}, 0x20000000) 11:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42}]}, 0x20}}, 0x20000000) [ 495.853907] nbd: couldn't find a device at index 0 11:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (rerun: 64) 11:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 495.880815] nbd: must specify a device to reconfigure 11:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 495.926528] nbd: must specify a device to reconfigure [ 495.939441] nbd: must specify a device to reconfigure [ 495.962781] nbd: couldn't find a device at index 0 11:53:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42}]}, 0x20}}, 0x0) 11:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x20000000) [ 495.974577] nbd: couldn't find a device at index 0 [ 495.989781] nbd: couldn't find a device at index 5 [ 496.004396] nbd: couldn't find a device at index 0 [ 496.017764] nbd: couldn't find a device at index 0 11:53:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:56 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x44, 0x0, 0x400, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xbee}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7ed35531}]}, 0x44}, 0x1, 0x0, 0x0, 0x40}, 0x4000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r3, 0xb11}, 0x14}}, 0x0) [ 496.051767] nbd: couldn't find a device at index 0 [ 496.062290] nbd: must specify a device to reconfigure [ 496.074147] nbd: couldn't find a device at index 0 [ 496.113251] nbd: couldn't find a device at index 0 [ 496.121104] nbd: couldn't find a device at index 0 [ 496.130947] nbd: couldn't find a device at index 0 [ 496.137284] nbd: couldn't find a device at index 0 [ 496.142338] nbd: couldn't find a device at index 0 [ 496.149472] nbd: couldn't find a device at index 0 [ 496.155611] nbd: couldn't find a device at index 0 [ 496.160737] nbd: couldn't find a device at index 0 [ 496.167183] nbd: couldn't find a device at index 0 [ 496.172505] nbd: couldn't find a device at index 0 [ 496.178357] nbd: couldn't find a device at index 0 [ 496.191970] nbd: couldn't find a device at index 0 [ 496.197614] nbd: couldn't find a device at index 0 [ 496.203097] nbd: couldn't find a device at index 0 [ 496.208106] nbd: couldn't find a device at index 0 [ 496.214778] nbd: couldn't find a device at index 0 [ 496.219787] nbd: couldn't find a device at index 0 [ 496.225788] nbd: couldn't find a device at index 0 [ 496.230784] nbd: couldn't find a device at index 0 [ 496.237042] nbd: couldn't find a device at index 0 [ 496.242082] nbd: couldn't find a device at index 0 [ 496.247857] nbd: couldn't find a device at index 0 [ 496.253569] nbd: couldn't find a device at index 0 [ 496.258571] nbd: couldn't find a device at index 0 [ 496.264375] nbd: couldn't find a device at index 0 [ 496.269347] nbd: couldn't find a device at index 0 [ 496.275116] nbd: couldn't find a device at index 0 [ 496.280087] nbd: couldn't find a device at index 0 [ 496.285997] nbd: couldn't find a device at index 0 [ 496.290959] nbd: couldn't find a device at index 0 [ 496.296662] nbd: couldn't find a device at index 0 [ 496.301632] nbd: couldn't find a device at index 0 [ 496.307169] nbd: couldn't find a device at index 0 [ 496.312136] nbd: couldn't find a device at index 0 [ 496.317684] nbd: couldn't find a device at index 0 [ 496.323117] nbd: couldn't find a device at index 0 [ 496.328089] nbd: couldn't find a device at index 0 [ 496.334023] nbd: couldn't find a device at index 0 [ 496.339027] nbd: couldn't find a device at index 0 [ 496.344576] nbd: couldn't find a device at index 0 [ 496.349539] nbd: couldn't find a device at index 0 [ 496.355390] nbd: couldn't find a device at index 0 [ 496.360358] nbd: couldn't find a device at index 0 [ 496.365856] nbd: couldn't find a device at index 0 [ 496.370826] nbd: couldn't find a device at index 0 [ 496.376616] nbd: couldn't find a device at index 0 [ 496.381592] nbd: couldn't find a device at index 0 [ 496.387236] nbd: couldn't find a device at index 0 [ 496.392220] nbd: couldn't find a device at index 0 [ 496.398113] nbd: couldn't find a device at index 0 [ 496.403166] nbd: couldn't find a device at index 0 [ 496.408119] nbd: couldn't find a device at index 0 11:53:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x20000000) 11:53:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000180), r1) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000300)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000001c0)={&(0x7f0000000280)={0x68, r2, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@L2TP_ATTR_UDP_CSUM={0x5}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x3}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @empty}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @L2TP_ATTR_LNS_MODE={0x5}, @L2TP_ATTR_MRU={0x6, 0x1d, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}]}, 0x68}}, 0x4004041) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x40, 0x0) ioctl$EVIOCSMASK(r3, 0x40104593, &(0x7f0000000080)={0x5, 0x42, &(0x7f0000000000)="903ca10ce348b944bd1f6f41b1338e48092efadab5e442624e4d7dfe3647126c617d7db743695390eeaf09678fc194e0824ddb54591fdea59a4d62ad6fe6a7e7e4d3"}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) 11:53:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(r1, 0x7b0, &(0x7f0000000000)={@host, 0xffffffff}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) [ 496.414101] nbd: couldn't find a device at index 0 [ 496.419131] nbd: couldn't find a device at index 0 [ 496.424527] nbd: couldn't find a device at index 0 [ 496.429494] nbd: couldn't find a device at index 0 [ 496.434562] nbd: couldn't find a device at index 0 [ 496.439531] nbd: couldn't find a device at index 0 [ 496.444562] nbd: couldn't find a device at index 0 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) [ 496.522196] nbd: couldn't find a device at index 0 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)=ANY=[@ANYBLOB="3c00e64422629705cd5153010016fc9e888700a3bff508ce61d410bfde9b2626c1739fcbf92aa97ff87217a43cf69db131822a336b885d0d5f439126fef9e74b13d4285919c21cb5a1accb4491551e4dca3baa7c431f7884b6541eb5be1435c11523071d53f94998dfbe1717d1ce37fa22f69852310e3f", @ANYRES16=0x0, @ANYBLOB="02002bbd7000ffdbdf2501000000050038000100000008003a00160e0000"], 0x24}, 0x1, 0x0, 0x0, 0x4048008}, 0x80) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="fedfaff5", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(0xffffffffffffffff, 0x7b0, &(0x7f0000000000)={@local, 0xd1e}) 11:53:57 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 496.566902] nbd: must specify a device to reconfigure 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x1, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x0) 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)=ANY=[@ANYBLOB="3c00e64422629705cd5153010016fc9e888700a3bff508ce61d410bfde9b2626c1739fcbf92aa97ff87217a43cf69db131822a336b885d0d5f439126fef9e74b13d4285919c21cb5a1accb4491551e4dca3baa7c431f7884b6541eb5be1435c11523071d53f94998dfbe1717d1ce37fa22f69852310e3f", @ANYRES16=0x0, @ANYBLOB="02002bbd7000ffdbdf2501000000050038000100000008003a00160e0000"], 0x24}, 0x1, 0x0, 0x0, 0x4048008}, 0x80) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="fedfaff5", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(0xffffffffffffffff, 0x7b0, &(0x7f0000000000)={@local, 0xd1e}) [ 496.607261] nbd: must specify a device to reconfigure 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) 11:53:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x14, r1, 0x1}, 0x14}}, 0x20000000) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) 11:53:57 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)=ANY=[@ANYBLOB="3c00e64422629705cd5153010016fc9e888700a3bff508ce61d410bfde9b2626c1739fcbf92aa97ff87217a43cf69db131822a336b885d0d5f439126fef9e74b13d4285919c21cb5a1accb4491551e4dca3baa7c431f7884b6541eb5be1435c11523071d53f94998dfbe1717d1ce37fa22f69852310e3f", @ANYRES16=0x0, @ANYBLOB="02002bbd7000ffdbdf2501000000050038000100000008003a00160e0000"], 0x24}, 0x1, 0x0, 0x0, 0x4048008}, 0x80) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="fedfaff5", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(0xffffffffffffffff, 0x7b0, &(0x7f0000000000)={@local, 0xd1e}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$BATADV_CMD_GET_MESH(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)=ANY=[@ANYBLOB="3c00e64422629705cd5153010016fc9e888700a3bff508ce61d410bfde9b2626c1739fcbf92aa97ff87217a43cf69db131822a336b885d0d5f439126fef9e74b13d4285919c21cb5a1accb4491551e4dca3baa7c431f7884b6541eb5be1435c11523071d53f94998dfbe1717d1ce37fa22f69852310e3f", @ANYRES16=0x0, @ANYBLOB="02002bbd7000ffdbdf2501000000050038000100000008003a00160e0000"], 0x24}, 0x1, 0x0, 0x0, 0x4048008}, 0x80) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="fedfaff5", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) ioctl$IOCTL_VMCI_CTX_REMOVE_NOTIFICATION(0xffffffffffffffff, 0x7b0, &(0x7f0000000000)={@local, 0xd1e}) (async) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42, 0x2, 0x3}]}, 0x20}}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000800)=ANY=[@ANYBLOB="9c6b00b94de5900c462c3add21fbcd4300eb44de97008a6ac0521929fa369c170b68012b7bbbdbdef78d377684909662cfa384647be1617f39b25f1ce8c15d633c62dff61da188c776889c6b01c99145ef97bc24fb00"/97, @ANYRES16=r1, @ANYRESOCT], 0x44}, 0x1, 0x0, 0x0, 0x8000}, 0x8080) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vsock(0xffffffffffffff9c, &(0x7f00000003c0), 0xa0000, 0x0) r5 = syz_genetlink_get_family_id$batadv(&(0x7f0000000440), 0xffffffffffffffff) sendmsg$BATADV_CMD_GET_GATEWAYS(r4, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000480)={0x3c, r5, 0x10, 0x70bd26, 0x25dfdbfb, {}, [@BATADV_ATTR_GW_BANDWIDTH_UP={0x8, 0x32, 0x1000}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x4}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0x101}, @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED={0x5, 0x37, 0x1}, @BATADV_ATTR_VLANID={0x6}]}, 0x3c}, 0x1, 0x0, 0x0, 0x8851}, 0x40) sendmsg$BATADV_CMD_GET_DAT_CACHE(r4, &(0x7f0000000740)={&(0x7f0000000640), 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x54, r5, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x3ff}, @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED={0x5, 0x2e, 0x1}, @BATADV_ATTR_GW_MODE={0x5}, @BATADV_ATTR_BONDING_ENABLED={0x5, 0x2d, 0x1}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0xfff}, @BATADV_ATTR_ELP_INTERVAL={0x8, 0x3a, 0x90a}, @BATADV_ATTR_GW_SEL_CLASS={0x8}, @BATADV_ATTR_ISOLATION_MARK={0x8, 0x2b, 0x10001}]}, 0x54}, 0x1, 0x0, 0x0, 0x24000004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000fbdbdf2501", @ANYRES32=r0], 0x7c}, 0x1, 0x0, 0x0, 0x4}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000600)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x80400082}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="08002cbd7000fcdbdf2578c723488771ff0133020000000c000a0004000000000000000c0008"], 0x2c}, 0x1, 0x0, 0x0, 0x20000400}, 0x4881) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) 11:53:57 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) 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$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000003c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x38, r1, 0x400, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xaa93}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x80000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}, 0x1, 0x0, 0x0, 0x5}, 0x10040040) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x48, r4, 0x1, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000001}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x20}}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x80, r1, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffffff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffffe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe92}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x80}, 0x1, 0x0, 0x0, 0x4000041}, 0x20000880) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x14, r1, 0x1}, 0x14}}, 0x20000000) [ 496.735826] nbd: must specify a device to reconfigure [ 496.750247] nbd: must specify a device to reconfigure [ 496.775836] nbd: must specify a device to reconfigure 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$MEDIA_REQUEST_IOC_QUEUE(0xffffffffffffffff, 0x7c80, 0x0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_DELETE(r3, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_IP6_DADDR={0x14, 0x20, @mcast2}, @L2TP_ATTR_CONN_ID={0x8}]}, 0x30}}, 0x0) r5 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), r2) sendmsg$L2TP_CMD_NOOP(r2, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x50, r5, 0x800, 0x70bd2c, 0x25dfdbfb, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @initdev={0xac, 0x1e, 0x0, 0x0}}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_PEER_SESSION_ID={0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0xff}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0x38d}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'bridge_slave_0\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x1}, 0x4) sendmsg$L2TP_CMD_SESSION_CREATE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r4, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x100000c4) 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0) ioctl$EVIOCGSW(r1, 0x8040451b, &(0x7f0000000380)=""/225) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) ioctl$DRM_IOCTL_NEW_CTX(r2, 0x40086425, &(0x7f0000000100)={0x0, 0x1}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) ioctl$DRM_IOCTL_ADD_CTX(r2, 0xc0086420, &(0x7f0000000280)={0x0}) ioctl$DRM_IOCTL_SWITCH_CTX(0xffffffffffffffff, 0x40086424, &(0x7f00000002c0)={r3, 0x3}) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x40, 0x0, 0x4, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '\x95/\\'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}]}, 0x40}, 0x1, 0x0, 0x0, 0x40010}, 0x8040) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000004c0)=ANY=[@ANYBLOB='?\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) [ 496.824785] nbd: must specify a device to reconfigure 11:53:57 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) getsockopt$bt_BT_SNDMTU(r0, 0x112, 0xc, &(0x7f0000000040)=0x7fff, &(0x7f0000000080)=0x2) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000340), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000380)=ANY=[@ANYBLOB="3f000000e4b5e9b7aab24e704748e3eada5a1f648242d17efaf632ffee05b1e4e2b17d526f279e08612d58407e82a4067d08b9dcdd08a0855e2d8774a29ffb178fae7c51a755094444e18a4d52c59ba40026c483330a7f4b995b3c7f0626a7139c9db2ca8ec080e5b4dcfe00a4d7cd48cbc186a81459ccf1c1e9156a18c3b11e277a90565234f90074ded6b3599a", @ANYRES16=r2, @ANYBLOB="01002cbd70250100000000c797e4bbd49e44b63110160ea8a81d2990946ad22c2efc8905ad92bbc3e325744523b50365aa889875d5a1bfc26617d73fdd245fdddbaa8479329d759ca56ad553cbad5cdcce066efc6dcdc9bc6994a97e54fc090965ac1b454c459a4fd1b3ebedb0b07420de8551d8d8a2f8afd554d2ab14a8fbbecf7b373d3c3b0d1adb0200399ae06f24d711fe27b2baabf4341cbd173eeccd6c10fe2e8a0d3400024560a63716d013c133de040d6ef2b7fd3d23f0a9f4b4df9326c55df70c0644c143c2ee5a8e8f"], 0x7c}}, 0x0) [ 496.851840] nbd: must specify at least one socket 11:53:57 executing program 4: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) socket$inet_udp(0x2, 0x2, 0x0) bind(r0, 0x0, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r2, 0x200, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x20}, 0x1, 0x0, 0x0, 0x800}, 0x10) 11:53:57 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x14, r1, 0x1}, 0x14}}, 0x20000000) 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) ioctl$MEDIA_REQUEST_IOC_QUEUE(0xffffffffffffffff, 0x7c80, 0x0) (async) r2 = socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_DELETE(r3, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_IP6_DADDR={0x14, 0x20, @mcast2}, @L2TP_ATTR_CONN_ID={0x8}]}, 0x30}}, 0x0) (async) r5 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), r2) sendmsg$L2TP_CMD_NOOP(r2, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x50, r5, 0x800, 0x70bd2c, 0x25dfdbfb, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @initdev={0xac, 0x1e, 0x0, 0x0}}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_PEER_SESSION_ID={0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0xff}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0x38d}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'bridge_slave_0\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x1}, 0x4) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r4, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x100000c4) [ 496.898362] nbd: must specify a device to reconfigure [ 496.916231] nbd: couldn't find a device at index 0 11:53:57 executing program 1: socketpair(0x10, 0x2, 0x8, 0x0) socket$nl_generic(0x10, 0x3, 0x10) r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r0, 0x8933, &(0x7f0000000000)={'batadv_slave_1\x00'}) r1 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) sendmsg$BATADV_CMD_TP_METER_CANCEL(r1, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4300200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x2c, 0x0, 0x2, 0x70bd2b, 0x25dfdbfb, {}, [@BATADV_ATTR_THROUGHPUT_OVERRIDE={0x8, 0x3b, 0x8}, @BATADV_ATTR_ORIG_INTERVAL={0x8, 0x39, 0x596}, @BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED={0x5, 0x2f, 0x1}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4000040}, 0x40080) 11:53:57 executing program 2: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42}]}, 0x20}}, 0x20000000) [ 496.974336] nbd: must specify a device to reconfigure 11:53:57 executing program 2: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="110b003800000000000002000000"], 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r4, 0x800, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffa}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x58}, 0x1, 0x0, 0x0, 0x20048880}, 0x200040d0) 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) ioctl$MEDIA_REQUEST_IOC_QUEUE(0xffffffffffffffff, 0x7c80, 0x0) (async) r2 = socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_DELETE(r3, &(0x7f0000000140)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_IP6_DADDR={0x14, 0x20, @mcast2}, @L2TP_ATTR_CONN_ID={0x8}]}, 0x30}}, 0x0) r5 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), r2) sendmsg$L2TP_CMD_NOOP(r2, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x50, r5, 0x800, 0x70bd2c, 0x25dfdbfb, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @initdev={0xac, 0x1e, 0x0, 0x0}}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_PEER_SESSION_ID={0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0xff}, @L2TP_ATTR_VLAN_ID={0x6, 0xe, 0x38d}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'bridge_slave_0\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x1}, 0x4) sendmsg$L2TP_CMD_SESSION_CREATE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r4, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x100000c4) [ 497.026600] nbd: couldn't find a device at index 0 11:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 2: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 497.059058] nbd: must specify a device to reconfigure 11:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x42}]}, 0x20}}, 0x0) 11:53:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="110b003800000000000002000000"], 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r4, 0x800, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffa}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x58}, 0x1, 0x0, 0x0, 0x20048880}, 0x200040d0) 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f00000000c0)={&(0x7f0000000080)=[0x3, 0x10001, 0x0, 0x7fff, 0x1, 0x7], 0x6, 0x80000, 0x0, 0xffffffffffffffff}) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x2c, 0xa, 0x3, &(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r3, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffe}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0xc0000}, 0x20004050) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000480)=ANY=[@ANYBLOB="36e33163baf47ec99db9159cf8ded23827cbec230d6867874667b649f522f6b7b6e62c8cb8972aca54821a2924765d2315ad84999c385c06e7944777bc0ad4748f7d7177f84fe2bbc313560efa58566a2c78a3b9d3f139437bd04acf20ce1e4117ff5f0654c416dcb464f22e217172c39fc0e2225a0047f5f80ca7e43d9958823f0dafe4304315d4c4d360c06f", @ANYRES16=r1, @ANYBLOB="010000c609cd46cfd81bb00000cfedd6205685d0ea00978da96cffc2ce033783fb3e0100000025a01fbd2fcc71ba26c3fa56ded2df60064fb2945880f027e9af22e8a7c2245e7e9cec"], 0x1c}}, 0x0) [ 497.111418] nbd: couldn't find a device at index 0 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f00000000c0)={&(0x7f0000000080)=[0x3, 0x10001, 0x0, 0x7fff, 0x1, 0x7], 0x6, 0x80000, 0x0, 0xffffffffffffffff}) (async, rerun: 32) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 32) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x2c, 0xa, 0x3, &(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r3, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffe}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0xc0000}, 0x20004050) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r2) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000480)=ANY=[@ANYBLOB="36e33163baf47ec99db9159cf8ded23827cbec230d6867874667b649f522f6b7b6e62c8cb8972aca54821a2924765d2315ad84999c385c06e7944777bc0ad4748f7d7177f84fe2bbc313560efa58566a2c78a3b9d3f139437bd04acf20ce1e4117ff5f0654c416dcb464f22e217172c39fc0e2225a0047f5f80ca7e43d9958823f0dafe4304315d4c4d360c06f", @ANYRES16=r1, @ANYBLOB="010000c609cd46cfd81bb00000cfedd6205685d0ea00978da96cffc2ce033783fb3e0100000025a01fbd2fcc71ba26c3fa56ded2df60064fb2945880f027e9af22e8a7c2245e7e9cec"], 0x1c}}, 0x0) (rerun: 64) 11:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 497.184499] nbd: must specify a device to reconfigure 11:53:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f00000000c0)={&(0x7f0000000080)=[0x3, 0x10001, 0x0, 0x7fff, 0x1, 0x7], 0x6, 0x80000, 0x0, 0xffffffffffffffff}) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x2c, 0xa, 0x3, &(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r3, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffe}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0xc0000}, 0x20004050) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000480)=ANY=[@ANYBLOB="36e33163baf47ec99db9159cf8ded23827cbec230d6867874667b649f522f6b7b6e62c8cb8972aca54821a2924765d2315ad84999c385c06e7944777bc0ad4748f7d7177f84fe2bbc313560efa58566a2c78a3b9d3f139437bd04acf20ce1e4117ff5f0654c416dcb464f22e217172c39fc0e2225a0047f5f80ca7e43d9958823f0dafe4304315d4c4d360c06f", @ANYRES16=r1, @ANYBLOB="010000c609cd46cfd81bb00000cfedd6205685d0ea00978da96cffc2ce033783fb3e0100000025a01fbd2fcc71ba26c3fa56ded2df60064fb2945880f027e9af22e8a7c2245e7e9cec"], 0x1c}}, 0x0) 11:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 3: r0 = syz_init_net_socket$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$NBD_CMD_DISCONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="110b003800000000000002000000"], 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r4, 0x800, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffa}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x58}, 0x1, 0x0, 0x0, 0x20048880}, 0x200040d0) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f00000000c0)={&(0x7f0000000080)=[0x3, 0x10001, 0x0, 0x7fff, 0x1, 0x7], 0x6, 0x80000, 0x0, 0xffffffffffffffff}) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x2c, 0xa, 0x3, &(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r3, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffe}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}]}, 0x68}, 0x1, 0x0, 0x0, 0xc0000}, 0x20004050) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000480)=ANY=[@ANYBLOB="36e33163baf47ec99db9159cf8ded23827cbec230d6867874667b649f522f6b7b6e62c8cb8972aca54821a2924765d2315ad84999c385c06e7944777bc0ad4748f7d7177f84fe2bbc313560efa58566a2c78a3b9d3f139437bd04acf20ce1e4117ff5f0654c416dcb464f22e217172c39fc0e2225a0047f5f80ca7e43d9958823f0dafe4304315d4c4d360c06f", @ANYRES16=r1, @ANYBLOB="010000c609cd46cfd81bb00000cfedd6205685d0ea00978da96cffc2ce033783fb3e0100000025a01fbd2fcc71ba26c3fa56ded2df60064fb2945880f027e9af22e8a7c2245e7e9cec"], 0x1c}}, 0x0) 11:53:57 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:57 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r3, @ANYBLOB="01000000000000000000030000000800010000000000ac21ffa3f4a049509d03445ebb7ab07e91b01f16d4210f33db22ed57fe36b04d714906fdbe4c65c12a9aaa973f3c66d378a2b4cac7c02b00"/93], 0x1c}}, 0x0) 11:53:57 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) bind(r0, 0x0, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x27, 0x3, 0x2, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x50, r2, 0x200, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}]}, 0x50}, 0x1, 0x0, 0x0, 0x240008c1}, 0x4000000) 11:53:58 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) (async, rerun: 32) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r3, @ANYBLOB="01000000000000000000030000000800010000000000ac21ffa3f4a049509d03445ebb7ab07e91b01f16d4210f33db22ed57fe36b04d714906fdbe4c65c12a9aaa973f3c66d378a2b4cac7c02b00"/93], 0x1c}}, 0x0) [ 497.545522] nbd: must specify at least one socket [ 497.550583] nbd: couldn't find a device at index 0 11:53:58 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r3, @ANYBLOB="01000000000000000000030000000800010000000000ac21ffa3f4a049509d03445ebb7ab07e91b01f16d4210f33db22ed57fe36b04d714906fdbe4c65c12a9aaa973f3c66d378a2b4cac7c02b00"/93], 0x1c}}, 0x0) 11:53:58 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 497.649477] nbd: couldn't find a device at index 0 11:53:58 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) (async) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r3, @ANYBLOB="01000000000000000000030000000800010000000000ac21ffa3f4a049509d03445ebb7ab07e91b01f16d4210f33db22ed57fe36b04d714906fdbe4c65c12a9aaa973f3c66d378a2b4cac7c02b00"/93], 0x1c}}, 0x0) 11:53:58 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r3, @ANYBLOB="01000000000000000000030000000800010000000000ac21ffa3f4a049509d03445ebb7ab07e91b01f16d4210f33db22ed57fe36b04d714906fdbe4c65c12a9aaa973f3c66d378a2b4cac7c02b00"/93], 0x1c}}, 0x0) 11:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 0: setsockopt$bt_BT_VOICE(0xffffffffffffffff, 0x112, 0xb, &(0x7f0000000000), 0x2) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="00000400", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 497.726498] nbd: couldn't find a device at index 0 [ 497.737919] nbd: couldn't find a device at index 0 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r3, @ANYBLOB="01000000000000000000030000000800010000000000ac21ffa3f4a049509d03445ebb7ab07e91b01f16d4210f33db22ed57fe36b04d714906fdbe4c65c12a9aaa973f3c66d378a2b4cac7c02b00"/93], 0x1c}}, 0x0) [ 497.797022] nbd: couldn't find a device at index 0 11:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 0: setsockopt$bt_BT_VOICE(0xffffffffffffffff, 0x112, 0xb, &(0x7f0000000000), 0x2) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="00000400", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) setsockopt$bt_BT_VOICE(0xffffffffffffffff, 0x112, 0xb, &(0x7f0000000000), 0x2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="00000400", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) [ 497.879925] nbd: couldn't find a device at index 0 11:53:58 executing program 3: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) 11:53:58 executing program 0: setsockopt$bt_BT_VOICE(0xffffffffffffffff, 0x112, 0xb, &(0x7f0000000000), 0x2) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="00000400", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 11:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:58 executing program 0: r0 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r0, 0x0, 0x0) semop(r0, &(0x7f0000000000)=[{0x2, 0x1}, {0x3, 0x8}, {0x1, 0xfe8, 0x1800}, {0x3, 0x6, 0xc00}, {0x4, 0xfff7, 0x800}], 0x5) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x842501, 0x0) ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x1) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:58 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r1, 0x0, 0x0) write$cgroup_freezer_state(r0, &(0x7f0000000000)='FROZEN\x00', 0x7) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) 11:53:58 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 0: r0 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r0, 0x0, 0x0) semop(r0, &(0x7f0000000000)=[{0x2, 0x1}, {0x3, 0x8}, {0x1, 0xfe8, 0x1800}, {0x3, 0x6, 0xc00}, {0x4, 0xfff7, 0x800}], 0x5) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x842501, 0x0) ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x1) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) semget(0x0, 0x3, 0x3bb3a0c534927305) (async) semctl$IPC_RMID(r0, 0x0, 0x0) (async) semop(r0, &(0x7f0000000000)=[{0x2, 0x1}, {0x3, 0x8}, {0x1, 0xfe8, 0x1800}, {0x3, 0x6, 0xc00}, {0x4, 0xfff7, 0x800}], 0x5) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x842501, 0x0) (async) ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) [ 498.058494] nbd: couldn't find a device at index 0 11:53:58 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 498.149245] nbd: couldn't find a device at index 0 11:53:58 executing program 0: r0 = semget(0x0, 0x3, 0x3bb3a0c534927305) semctl$IPC_RMID(r0, 0x0, 0x0) semop(r0, &(0x7f0000000000)=[{0x2, 0x1}, {0x3, 0x8}, {0x1, 0xfe8, 0x1800}, {0x3, 0x6, 0xc00}, {0x4, 0xfff7, 0x800}], 0x5) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x842501, 0x0) ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x1) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) semget(0x0, 0x3, 0x3bb3a0c534927305) (async) semctl$IPC_RMID(r0, 0x0, 0x0) (async) semop(r0, &(0x7f0000000000)=[{0x2, 0x1}, {0x3, 0x8}, {0x1, 0xfe8, 0x1800}, {0x3, 0x6, 0xc00}, {0x4, 0xfff7, 0x800}], 0x5) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x842501, 0x0) (async) ioctl$TUNSETNOCSUM(r2, 0x400454c8, 0x1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 11:53:58 executing program 3: openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) 11:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 498.236176] nbd: couldn't find a device at index 0 11:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f0000000040)={0x40, 0xb26b, 0x80000001}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0xc840) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0)={0x80000000}, 0x8) 11:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 3: bpf$BPF_PROG_GET_NEXT_ID(0xb, 0x0, 0x0) 11:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) (async) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f0000000040)={0x40, 0xb26b, 0x80000001}) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0xc840) [ 498.377596] nbd: couldn't find a device at index 0 11:53:58 executing program 3: bpf$BPF_PROG_GET_NEXT_ID(0xb, 0x0, 0x0) 11:53:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:58 executing program 3: bpf$BPF_PROG_GET_NEXT_ID(0xb, 0x0, 0x0) 11:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 3: bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0), 0x8) [ 498.496753] nbd: couldn't find a device at index 0 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r0, 0x0, 0x0) (async) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f0000000040)={0x40, 0xb26b, 0x80000001}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0xc840) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 3: bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0), 0x8) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 3: bpf$BPF_PROG_GET_NEXT_ID(0xb, &(0x7f00000000c0), 0x8) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 498.636904] nbd: couldn't find a device at index 0 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000380)={&(0x7f0000000340)=[0xf4, 0x200, 0xcec], 0x3, 0x800, 0x0, 0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000004c0)={&(0x7f00000005c0)=ANY=[@ANYBLOB="dc000000", @ANYRES16=r2, @ANYBLOB="200027bd7000fbdbdf25020000005400078008000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="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", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="2c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="08000a006e6264002c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08000100000000000c0008000600000000000000"], 0xdc}, 0x1, 0x0, 0x0, 0x20040001}, 0x2000c011) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)=ANY=[@ANYBLOB="2b100000", @ANYRES16=r1, @ANYBLOB="00012abd7000fcdbdf25030000000c00060000000000000000000c0003000600000000000000"], 0x2c}}, 0x810) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000040000000300000007000a00100006000c00180000602701000000000800010000000000"], 0x30}}, 0x0) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r9, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r1, 0x200, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4d2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3e5f}]}, 0x2c}, 0x1, 0x0, 0x0, 0x41}, 0x4000000) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 498.764063] nbd: couldn't find a device at index 0 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async, rerun: 64) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 64) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) (async) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000380)={&(0x7f0000000340)=[0xf4, 0x200, 0xcec], 0x3, 0x800, 0x0, 0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000004c0)={&(0x7f00000005c0)=ANY=[@ANYBLOB="dc000000", @ANYRES16=r2, @ANYBLOB="200027bd7000fbdbdf25020000005400078008000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="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", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="2c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="08000a006e6264002c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08000100000000000c0008000600000000000000"], 0xdc}, 0x1, 0x0, 0x0, 0x20040001}, 0x2000c011) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)=ANY=[@ANYBLOB="2b100000", @ANYRES16=r1, @ANYBLOB="00012abd7000fcdbdf25030000000c00060000000000000000000c0003000600000000000000"], 0x2c}}, 0x810) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000040000000300000007000a00100006000c00180000602701000000000800010000000000"], 0x30}}, 0x0) (async) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r9, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r1, 0x200, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4d2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3e5f}]}, 0x2c}, 0x1, 0x0, 0x0, 0x41}, 0x4000000) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x34, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x34, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 498.915703] nbd: must specify a size in bytes for the device [ 498.929230] nbd: couldn't find a device at index 0 11:53:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r6, 0x0, 0x0) (async) ioctl$DRM_IOCTL_MODE_CREATE_LEASE(0xffffffffffffffff, 0xc01864c6, &(0x7f0000000380)={&(0x7f0000000340)=[0xf4, 0x200, 0xcec], 0x3, 0x800, 0x0, 0xffffffffffffffff}) (async, rerun: 32) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (rerun: 32) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000500)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000004c0)={&(0x7f00000005c0)=ANY=[@ANYBLOB="dc000000", @ANYRES16=r2, @ANYBLOB="200027bd7000fbdbdf25020000005400078008000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="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", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="2c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="08000a006e6264002c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08000100000000000c0008000600000000000000"], 0xdc}, 0x1, 0x0, 0x0, 0x20040001}, 0x2000c011) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)=ANY=[@ANYBLOB="2b100000", @ANYRES16=r1, @ANYBLOB="00012abd7000fcdbdf25030000000c00060000000000000000000c0003000600000000000000"], 0x2c}}, 0x810) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000040000000300000007000a00100006000c00180000602701000000000800010000000000"], 0x30}}, 0x0) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r9, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r1, 0x200, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4d2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3e5f}]}, 0x2c}, 0x1, 0x0, 0x0, 0x41}, 0x4000000) 11:53:59 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.007454] nbd: must specify a size in bytes for the device 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x34, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 0: socketpair(0x21, 0x0, 0x2, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.105309] nbd: couldn't find a device at index 0 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 0: socketpair(0x21, 0x0, 0x2, 0x0) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x34, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.164944] nbd: must specify a size in bytes for the device 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 0: socketpair(0x21, 0x0, 0x2, 0x0) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r7 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.354078] nbd: must specify at least one socket 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.385287] nbd: must specify at least one socket 11:53:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000005c0)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x4c, r7, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd189}, @NBD_ATTR_BACKEND_IDENTIFIER={0x20, 0xa, '/sys/kernel/debug/sync/info\x00'}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000060}, 0x4000001) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x400202, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x90, 0x0, 0x800, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x90}, 0x1, 0x0, 0x0, 0x20008040}, 0x4000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x48, r2, 0x4, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x28}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}]}, 0x48}, 0x1, 0x0, 0x0, 0x4080}, 0x0) [ 499.409082] nbd: must specify an index to disconnect 11:53:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:53:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) (async) r7 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 499.443486] nbd: couldn't find a device at index 0 [ 499.454418] nbd: must specify at least one socket 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.499642] nbd: must specify a device to reconfigure 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000005c0)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x4c, r7, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd189}, @NBD_ATTR_BACKEND_IDENTIFIER={0x20, 0xa, '/sys/kernel/debug/sync/info\x00'}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000060}, 0x4000001) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x400202, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x90, 0x0, 0x800, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x90}, 0x1, 0x0, 0x0, 0x20008040}, 0x4000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x48, r2, 0x4, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x28}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}]}, 0x48}, 0x1, 0x0, 0x0, 0x4080}, 0x0) 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.570029] nbd: must specify an index to disconnect [ 499.578697] nbd: couldn't find a device at index 0 [ 499.589605] nbd: must specify at least one socket [ 499.602846] nbd: must specify a size in bytes for the device 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.621390] nbd: must specify a device to reconfigure 11:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r7 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) (async) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)) (async) openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) (async) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 11:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000005c0)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x4c, r7, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd189}, @NBD_ATTR_BACKEND_IDENTIFIER={0x20, 0xa, '/sys/kernel/debug/sync/info\x00'}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000060}, 0x4000001) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x400202, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x90, 0x0, 0x800, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x90}, 0x1, 0x0, 0x0, 0x20008040}, 0x4000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x48, r2, 0x4, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x28}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}]}, 0x48}, 0x1, 0x0, 0x0, 0x4080}, 0x0) 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.646764] nbd: must specify a size in bytes for the device [ 499.681593] nbd: must specify at least one socket 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.697259] nbd: must specify a device to reconfigure [ 499.711352] nbd: must specify an index to disconnect [ 499.728027] nbd: couldn't find a device at index 0 11:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000005c0)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x4c, r6, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd189}, @NBD_ATTR_BACKEND_IDENTIFIER={0x20, 0xa, '/sys/kernel/debug/sync/info\x00'}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000060}, 0x4000001) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x400202, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000440)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x90, 0x0, 0x800, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x90}, 0x1, 0x0, 0x0, 0x20008040}, 0x4000) 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.749841] nbd: must specify a size in bytes for the device [ 499.767461] nbd: must specify a size in bytes for the device 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.820963] nbd: must specify a device to reconfigure 11:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000005c0)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x4c, r6, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd189}, @NBD_ATTR_BACKEND_IDENTIFIER={0x20, 0xa, '/sys/kernel/debug/sync/info\x00'}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000060}, 0x4000001) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x400202, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.852817] nbd: must specify a size in bytes for the device 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000005c0)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x4c, r6, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd189}, @NBD_ATTR_BACKEND_IDENTIFIER={0x20, 0xa, '/sys/kernel/debug/sync/info\x00'}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000060}, 0x4000001) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000005c0)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x4c, r6, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd189}, @NBD_ATTR_BACKEND_IDENTIFIER={0x20, 0xa, '/sys/kernel/debug/sync/info\x00'}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000060}, 0x4000001) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000240), 0x400202, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) [ 499.897388] nbd: must specify a size in bytes for the device [ 499.922524] nbd: must specify a device to reconfigure 11:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 499.969568] nbd: must specify a size in bytes for the device [ 500.006632] nbd: must specify a device to reconfigure 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000005c0)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x4c, r5, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd189}, @NBD_ATTR_BACKEND_IDENTIFIER={0x20, 0xa, '/sys/kernel/debug/sync/info\x00'}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000060}, 0x4000001) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.024303] nbd: must specify a device to reconfigure 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.078596] nbd: must specify a size in bytes for the device [ 500.117742] nbd: must specify a device to reconfigure 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000004c0), r0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.163154] nbd: must specify a size in bytes for the device 11:54:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.213418] nla_parse: 121 callbacks suppressed [ 500.213424] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 500.235756] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 500.250015] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.258730] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 500.267752] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 500.279032] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 500.295973] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 11:54:00 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.325340] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 500.344277] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 500.361618] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 11:54:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r7 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:54:00 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.414976] nbd: must specify a device to reconfigure 11:54:01 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.524876] nbd: must specify a device to reconfigure 11:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x70, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.556429] nbd: must specify at least one socket 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.591938] nbd: must specify an index to disconnect [ 500.607800] nbd: must specify a device to reconfigure [ 500.620044] nbd: couldn't find a device at index 2 [ 500.627674] nbd: must specify at least one socket 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r7 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 11:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.686133] nbd: must specify at least one socket 11:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.738265] nbd: must specify a device to reconfigure [ 500.750894] nbd: must specify at least one socket [ 500.756894] nbd: must specify at least one socket 11:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.796120] nbd: must specify at least one socket 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) [ 500.821165] nbd: must specify an index to disconnect 11:54:01 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r5, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r7 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r9, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 500.843789] nbd: must specify at least one socket [ 500.848846] nbd: couldn't find a device at index 2 11:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r2, 0x0, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:01 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.907897] nbd: must specify a device to reconfigure [ 500.919827] nbd: must specify at least one socket [ 500.941192] nbd: must specify at least one socket 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 500.971666] nbd: must specify an index to disconnect 11:54:01 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r6 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 500.992732] nbd: must specify a device to reconfigure [ 501.012070] nbd: couldn't find a device at index 2 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r6 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r8, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 501.102343] nbd: must specify at least one socket [ 501.113789] nbd: must specify an index to disconnect 11:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 501.194176] nbd: must specify a device to reconfigure 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[@ANYBLOB="18000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r6 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 501.218983] nbd: must specify at least one socket [ 501.232266] nbd: must specify an index to disconnect 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) [ 501.336565] nbd: must specify a device to reconfigure 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r6 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$L2TP_CMD_SESSION_DELETE(r7, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 501.367180] nbd: must specify at least one socket [ 501.376230] nbd: must specify an index to disconnect 11:54:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 501.454377] nbd: must specify at least one socket 11:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r6 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x38, 0x0, 0x200, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x77}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x40}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0x20008041) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 501.478559] nbd: must specify an index to disconnect 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:02 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair(0x1d, 0x5, 0x1, &(0x7f0000000300)) 11:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: socketpair(0x0, 0x5, 0x1, &(0x7f0000000300)) 11:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r6 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 501.575435] nbd: must specify at least one socket [ 501.593979] nbd: must specify an index to disconnect 11:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: socketpair(0x0, 0x5, 0x1, &(0x7f0000000300)) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 501.647824] nbd: must specify at least one socket 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) r6 = openat$vsock(0xffffffffffffff9c, &(0x7f0000000240), 0x101001, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 501.694195] nbd: must specify an index to disconnect 11:54:02 executing program 3: socketpair(0x0, 0x5, 0x1, &(0x7f0000000300)) 11:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 501.777951] nbd: must specify at least one socket 11:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) socketpair(0x25, 0xa, 0xffffff40, &(0x7f0000000200)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: socketpair(0x1d, 0x0, 0x1, &(0x7f0000000300)) [ 501.799300] nbd: must specify an index to disconnect 11:54:02 executing program 3: socketpair(0x1d, 0x0, 0x0, &(0x7f0000000300)) 11:54:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 501.901041] nbd: must specify at least one socket [ 501.916105] nbd: must specify an index to disconnect 11:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r4, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: socketpair(0x1d, 0x0, 0x0, &(0x7f0000000300)) 11:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 501.988617] can: request_module (can-proto-0) failed. [ 502.035423] nbd: must specify at least one socket 11:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: socketpair(0x1d, 0x0, 0x0, &(0x7f0000000300)) 11:54:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.058891] nbd: must specify an index to disconnect [ 502.069132] can: request_module (can-proto-0) failed. 11:54:02 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.138135] can: request_module (can-proto-0) failed. 11:54:02 executing program 3: socketpair(0x1d, 0x0, 0x1, 0x0) [ 502.179459] nbd: must specify at least one socket 11:54:02 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.202422] nbd: must specify an index to disconnect 11:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$L2TP_CMD_SESSION_DELETE(r3, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:02 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.328709] nbd: must specify at least one socket 11:54:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.415728] nbd: must specify an index to disconnect 11:54:02 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.587971] nbd: must specify at least one socket [ 502.606469] nbd: must specify an index to disconnect 11:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000180)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01002cbd7000fbdbdf2501"], 0x7c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.635501] nbd: must specify at least one socket 11:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x18, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}]}, 0x18}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.773487] nbd: must specify at least one socket 11:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.793742] nbd: must specify an index to disconnect 11:54:03 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:03 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x18, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}]}, 0x18}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.848178] nbd: must specify a size in bytes for the device [ 502.879752] nbd: must specify at least one socket 11:54:03 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 502.934972] nbd: must specify an index to disconnect 11:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:03 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x18, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}]}, 0x18}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 503.070063] nbd: must specify a size in bytes for the device 11:54:03 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 503.180431] nbd: must specify a size in bytes for the device 11:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 503.239484] nbd: must specify at least one socket 11:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:03 executing program 3: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 503.399383] nbd: must specify at least one socket 11:54:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 503.464099] nbd: must specify at least one socket 11:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200040}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x70, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x70}, 0x1, 0x0, 0x0, 0x20004040}, 0x40000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 503.630616] nbd: must specify an index to disconnect 11:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 503.702645] nbd: must specify an index to disconnect 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 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$nbd(0x0, r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 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$nbd(0x0, r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 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$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:04 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:04 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$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:04 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:05 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 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$nbd(&(0x7f0000000080), r0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000440)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r1, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x4800) 11:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x4800) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 504.809789] nbd: must specify a size in bytes for the device 11:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x4800) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x5c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x5c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 504.911259] nbd: must specify a size in bytes for the device 11:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 504.964644] nbd: must specify a size in bytes for the device 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}}, 0x0) 11:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 505.050218] nbd: must specify a size in bytes for the device [ 505.071638] nbd: must specify an index to disconnect 11:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 505.125134] nbd: must specify a size in bytes for the device 11:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}}, 0x0) [ 505.204289] nbd: must specify at least one socket 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) [ 505.229055] nbd: must specify a size in bytes for the device 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 505.297930] nla_parse: 258 callbacks suppressed [ 505.297936] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 505.321798] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 505.331043] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 505.355090] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 11:54:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={0x0}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x64}}, 0x0) 11:54:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 505.403809] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 11:54:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={0x0}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 505.504459] nbd: must specify at least one socket 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 505.528018] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 505.549774] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 505.574934] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 505.584182] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 505.593339] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={0x0}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0}, 0x0) 11:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0}, 0x0) 11:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 505.905953] nbd: must specify a size in bytes for the device 11:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0}, 0x0) 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}}, 0x0) 11:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 506.001520] nbd: must specify a size in bytes for the device 11:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}}, 0x0) [ 506.077464] nbd: must specify at least one socket 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}}, 0x0) 11:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}}, 0x0) 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, 0x0, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 506.185986] nbd: must specify at least one socket 11:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x0, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 506.228483] nbd: must specify at least one socket [ 506.244587] nbd: must specify at least one socket 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x0, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x0, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 506.484884] nbd: must specify an index to disconnect 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 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$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}]}, 0x88}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) [ 506.624543] nbd: must specify an index to disconnect 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 506.721515] nbd: must specify an index to disconnect 11:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x6c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}]}, 0x6c}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x18, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}]}, 0x18}}, 0x0) 11:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x20, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}]}, 0x20}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 506.848588] nbd: must specify an index to disconnect 11:54:07 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 506.907054] nbd: must specify an index to disconnect 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 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$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x14, r2, 0x1}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 506.930084] nbd: must specify a size in bytes for the device 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x18, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}]}, 0x18}}, 0x0) 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x14, r2, 0x1}, 0x14}}, 0x4800) 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) [ 507.019000] nbd: must specify an index to disconnect [ 507.037289] nbd: must specify a size in bytes for the device 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x18, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}]}, 0x18}}, 0x0) 11:54:07 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x14, r2, 0x1}, 0x14}}, 0x0) [ 507.074047] nbd: must specify at least one socket [ 507.091118] nbd: must specify an index to disconnect 11:54:07 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}}, 0x0) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 507.132969] nbd: must specify a size in bytes for the device [ 507.160600] nbd: must specify at least one socket 11:54:07 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 507.194305] nbd: must specify an index to disconnect 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}}, 0x0) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 507.216777] nbd: must specify at least one socket [ 507.225144] nbd: must specify at least one socket 11:54:07 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x24, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 11:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 507.340789] nbd: must specify at least one socket 11:54:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}}, 0x0) 11:54:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 507.476681] nbd: must specify at least one socket 11:54:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}}, 0x0) 11:54:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 507.614818] nbd: must specify at least one socket 11:54:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 5: r0 = syz_init_net_socket$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$NBD_CMD_DISCONNECT(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000340)={0x94, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcf}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000}]}, 0x94}, 0x1, 0x0, 0x0, 0x40000}, 0x4800) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 507.945882] nbd: must specify an index to disconnect 11:54:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:08 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 2: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}}, 0x0) 11:54:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}}, 0x0) 11:54:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 509.427313] nbd: must specify a size in bytes for the device 11:54:10 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 509.503688] nbd: must specify a size in bytes for the device [ 509.521357] nbd: must specify a size in bytes for the device 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 509.629768] nbd: must specify a size in bytes for the device [ 509.641390] nbd: must specify a size in bytes for the device 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 509.725598] nbd: must specify a size in bytes for the device 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x4c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.021177] nbd: must specify a size in bytes for the device 11:54:10 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.228236] nbd: must specify at least one socket 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.297084] nbd: must specify at least one socket 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.363313] nbd: must specify at least one socket 11:54:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) [ 510.387918] nbd: must specify at least one socket 11:54:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.438317] nbd: must specify at least one socket 11:54:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.458472] nbd: must specify a size in bytes for the device [ 510.473561] nbd: must specify at least one socket [ 510.488638] nbd: must specify at least one socket 11:54:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.548640] nbd: must specify a size in bytes for the device [ 510.567649] nla_parse: 290 callbacks suppressed [ 510.567655] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 510.586996] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 510.606102] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 510.616186] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 11:54:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, 0x0, 0x0) 11:54:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.803245] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 11:54:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.846473] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 510.864753] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 510.873972] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 11:54:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 510.963582] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 510.984098] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 11:54:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 511.209900] nbd: must specify a size in bytes for the device 11:54:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 511.459432] nbd: must specify a size in bytes for the device 11:54:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 511.905611] nbd: must specify at least one socket 11:54:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x40, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x50, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 512.627675] nbd: must specify at least one socket 11:54:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 512.692473] nbd: must specify a size in bytes for the device 11:54:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x38, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x38}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x2c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 512.883311] nbd: must specify at least one socket 11:54:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}}, 0x0) 11:54:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 512.963628] nbd: must specify at least one socket 11:54:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x48, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x3c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x3c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) 11:54:13 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) [ 513.061133] refcount_t: underflow; use-after-free. [ 513.076935] ------------[ cut here ]------------ [ 513.081734] WARNING: CPU: 1 PID: 1617 at lib/refcount.c:281 refcount_dec_not_one.cold+0x18/0x25 [ 513.090562] Kernel panic - not syncing: panic_on_warn set ... [ 513.090562] [ 513.097926] CPU: 1 PID: 1617 Comm: systemd-udevd Not tainted 4.14.275-syzkaller #0 [ 513.105623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 513.114981] Call Trace: [ 513.117578] dump_stack+0x1b2/0x281 [ 513.121213] panic+0x1f9/0x42d [ 513.124406] ? add_taint.cold+0x16/0x16 [ 513.128398] ? refcount_dec_not_one.cold+0x18/0x25 [ 513.133322] ? refcount_dec_not_one.cold+0x18/0x25 [ 513.138257] __warn.cold+0x20/0x44 [ 513.141791] ? ist_end_non_atomic+0x10/0x10 [ 513.146105] ? refcount_dec_not_one.cold+0x18/0x25 [ 513.151036] report_bug+0x208/0x250 [ 513.154658] do_error_trap+0x195/0x2d0 [ 513.158552] ? math_error+0x2d0/0x2d0 [ 513.162396] ? ___preempt_schedule+0x16/0x18 [ 513.166802] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 513.171647] invalid_op+0x1b/0x40 [ 513.175105] RIP: 0010:refcount_dec_not_one.cold+0x18/0x25 [ 513.180633] RSP: 0018:ffff888095547c38 EFLAGS: 00010286 [ 513.185992] RAX: 0000000000000026 RBX: 0000000000000000 RCX: 0000000000000000 [ 513.193276] RDX: 0000000000000000 RSI: ffffffff878bc440 RDI: ffffed1012aa8f7d [ 513.200539] RBP: ffff888091b49e18 R08: 0000000000000026 R09: 0000000000000000 [ 513.207815] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff [ 513.215076] R13: 0000000000000000 R14: ffffed1010a9e46e R15: ffff888091b49e28 [ 513.222355] ? refcount_dec_not_one.cold+0x18/0x25 [ 513.227281] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 513.232296] refcount_dec_and_mutex_lock+0x1a/0x60 [ 513.237221] nbd_config_put+0x506/0x810 [ 513.241198] nbd_release+0xdf/0x150 [ 513.244825] ? nbd_queue_rq+0xc50/0xc50 [ 513.248795] __blkdev_put+0x5aa/0x800 [ 513.252598] ? revalidate_disk+0x1f0/0x1f0 [ 513.256818] ? locks_remove_file+0x2cd/0x420 [ 513.261206] ? blkdev_put+0x75/0x4c0 [ 513.264906] ? blkdev_put+0x4c0/0x4c0 [ 513.268693] blkdev_close+0x86/0xb0 [ 513.272299] __fput+0x25f/0x7a0 [ 513.275564] task_work_run+0x11f/0x190 [ 513.279461] exit_to_usermode_loop+0x1ad/0x200 [ 513.284023] do_syscall_64+0x4a3/0x640 [ 513.287896] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 513.293063] RIP: 0033:0x7f1be7ed3270 [ 513.296758] RSP: 002b:00007ffc3ad7b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 513.304445] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f1be7ed3270 [ 513.311699] RDX: 000000000aba9500 RSI: 0000000000000000 RDI: 0000000000000007 [ 513.318961] RBP: 00007f1be8d8d710 R08: 00005622ba05bec0 R09: 0000000000000018 [ 513.326208] R10: 00005622ba05c1d8 R11: 0000000000000246 R12: 0000000000000000 [ 513.333454] R13: 00005622ba0576e0 R14: 0000000000000003 R15: 000000000000000e [ 513.341205] Kernel Offset: disabled [ 513.344867] Rebooting in 86400 seconds..