mily_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r3, 0x1, 0x70bd29, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r4, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r5, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r6) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r11 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r11, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r7, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 977.589391] nbd: couldn't find device at index 1 17:02:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r3, 0x1, 0x70bd29, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 977.733275] nbd: couldn't find device at index 4 17:02:36 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r3, 0x1, 0x70bd29, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:36 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r4, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r5, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r6) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r11 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r11, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r7, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 977.919711] nbd: couldn't find device at index 2 17:02:36 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.016863] nla_parse: 697 callbacks suppressed [ 978.016870] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 978.045430] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 978.054347] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 978.064089] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 978.073373] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 978.082622] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 978.091876] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 978.100857] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 17:02:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r4, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r5, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r6) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r11 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r11, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r7, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.109734] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 978.118737] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 17:02:37 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.204392] nbd: couldn't find device at index 3 17:02:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r4, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r5, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r6) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r11 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r11, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r7, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.270467] nbd: couldn't find device at index 1 17:02:37 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.341709] nbd: nbd5 already in use 17:02:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r5 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r5, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, 0x0, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r4, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r5, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r6) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r11 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r11, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r7, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x78, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r5 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r5, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, 0x0, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.527225] nbd: couldn't find device at index 4 [ 978.532926] nbd: couldn't find device at index 1 17:02:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.610244] nbd: couldn't find device at index 3 17:02:37 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r5 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r5, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, 0x0, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x54, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x54}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x78, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.808083] nbd: couldn't find device at index 4 17:02:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x78, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 978.902838] nbd: couldn't find device at index 3 17:02:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x4c, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x4c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 979.040505] nbd: couldn't find device at index 4 17:02:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 979.131301] nbd: couldn't find device at index 1 [ 979.136137] nbd: must specify a size in bytes for the device 17:02:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 979.212609] nbd: couldn't find device at index 3 17:02:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x4c, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x4c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 979.276571] nbd: must specify a size in bytes for the device 17:02:38 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 979.358084] nbd: couldn't find device at index 4 17:02:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}}, 0x40050) 17:02:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 979.422011] nbd: couldn't find device at index 3 17:02:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x4c, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x4c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}}, 0x40050) 17:02:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 979.663184] nbd: couldn't find device at index 3 17:02:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}}, 0x40050) 17:02:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:38 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 979.868573] nbd: couldn't find device at index 4 [ 979.874892] nbd: couldn't find device at index 1 [ 979.895068] nbd: couldn't find device at index 3 17:02:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x0, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:38 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:39 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa4, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa4}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) 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$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x0, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa4, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa4}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 980.330738] nbd: couldn't find device at index 1 17:02:39 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa4, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa4}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) 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$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 980.478179] nbd: couldn't find device at index 4 [ 980.483005] nbd: couldn't find device at index 3 17:02:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x0, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 980.685204] nbd: couldn't find device at index 1 17:02:39 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:39 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 980.907346] nbd: couldn't find device at index 4 [ 980.957877] nbd: couldn't find device at index 1 17:02:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 981.147725] nbd: couldn't find device at index 4 17:02:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 981.281184] nbd: couldn't find device at index 1 17:02:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 981.380324] nbd: couldn't find device at index 3 17:02:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x58, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 981.487627] nbd: couldn't find device at index 1 17:02:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 981.558816] nbd: must specify at least one socket 17:02:40 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:40 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x58, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 981.583107] nbd: couldn't find device at index 4 [ 981.589833] nbd: couldn't find device at index 3 17:02:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:40 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x58, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 981.731699] nbd: couldn't find device at index 1 [ 981.744858] nbd: must specify at least one socket 17:02:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:40 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa4, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa4}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 981.817794] nbd: couldn't find device at index 4 [ 981.827886] nbd: must specify at least one socket 17:02:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 981.902579] nbd: couldn't find device at index 3 17:02:40 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:40 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xa4, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xa4}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 982.122098] nbd: couldn't find device at index 4 17:02:41 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 982.143224] nbd: couldn't find device at index 1 17:02:41 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x9c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x9c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:41 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 982.364676] nbd: couldn't find device at index 4 17:02:41 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x94, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x94}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 982.440854] nbd: couldn't find device at index 3 [ 982.496857] nbd: couldn't find device at index 1 17:02:41 executing program 5: syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:41 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x94, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x94}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 982.728559] nbd: couldn't find device at index 3 17:02:41 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x94, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x94}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 982.865674] nbd: couldn't find device at index 4 17:02:41 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 982.920821] nbd: couldn't find device at index 1 [ 982.928819] nbd: couldn't find device at index 3 17:02:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:41 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x40, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x40}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:41 executing program 5: 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$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 983.039162] nla_parse: 706 callbacks suppressed [ 983.039168] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.073972] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.095261] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.104957] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.114289] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.123061] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.131712] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.140259] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.148800] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 983.157497] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 17:02:42 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x94, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x94}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r3) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 5: 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$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:42 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 5: 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$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 983.269404] nbd: couldn't find device at index 4 17:02:42 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x8c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 983.327752] nbd: couldn't find device at index 1 17:02:42 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:42 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r2) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r5 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r5, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x8c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:42 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 983.597438] nbd: couldn't find device at index 3 17:02:42 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:42 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x0) 17:02:42 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 983.690761] nbd: couldn't find device at index 1 [ 983.716628] nbd: couldn't find device at index 4 17:02:42 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x8c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, 0x0, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x0) 17:02:42 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x8c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:42 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x0) 17:02:42 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, 0x0, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 984.029861] nbd: couldn't find device at index 1 [ 984.036848] nbd: couldn't find device at index 3 17:02:42 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 984.073795] nbd: couldn't find device at index 4 17:02:43 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:43 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:43 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x8c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, 0x0, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 984.257197] nbd: couldn't find device at index 1 17:02:43 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:43 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 984.353939] nbd: couldn't find device at index 3 17:02:43 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={0x0}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:43 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={0x0}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 984.527802] nbd: couldn't find device at index 1 [ 984.535560] nbd: couldn't find device at index 4 17:02:43 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={0x0}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:43 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 984.792966] nbd: couldn't find device at index 1 17:02:43 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1f"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:43 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x74, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x74}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 984.967241] nbd: couldn't find device at index 4 [ 984.972393] nbd: couldn't find device at index 3 17:02:43 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:43 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:43 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040), 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x300000003}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x74, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x74}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1f"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:44 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 985.244388] nbd: couldn't find device at index 1 [ 985.261182] nbd: couldn't find device at index 4 [ 985.274968] nbd: couldn't find device at index 3 17:02:44 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x74, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x74}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1f"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:44 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x84, r2, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x84}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:44 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x74, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x74}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 985.598266] nbd: couldn't find device at index 1 [ 985.603481] nbd: couldn't find device at index 3 17:02:44 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x78, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:44 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x74, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x74}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x78, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:44 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 985.804564] nbd: couldn't find device at index 1 17:02:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x74, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x74}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x6c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x6c}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:44 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:44 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x6c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x6c}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 986.019229] nbd: must specify a size in bytes for the device [ 986.033509] nbd: couldn't find device at index 4 [ 986.038710] nbd: couldn't find device at index 1 17:02:44 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x70, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x6c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x6c}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x70, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 986.222459] nbd: couldn't find device at index 1 17:02:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x6c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x6c}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x70, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 986.376859] nbd: couldn't find device at index 1 [ 986.395340] nbd: couldn't find device at index 4 17:02:45 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x64, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x64, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 986.569555] nbd: couldn't find device at index 1 17:02:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 986.660684] nbd: couldn't find device at index 4 17:02:45 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x64, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:45 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e630"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x60, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x60}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x34, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 986.988754] nbd: couldn't find device at index 3 17:02:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e630"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x34, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:45 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}}, 0x40050) [ 987.118696] nbd: couldn't find device at index 1 [ 987.144834] nbd: couldn't find device at index 3 17:02:46 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e630"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}}, 0x40050) 17:02:46 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x34, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:46 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 987.289615] nbd: couldn't find device at index 4 [ 987.304358] nbd: couldn't find device at index 1 17:02:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e63001"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}}, 0x40050) 17:02:46 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x58, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 987.509806] nbd: couldn't find device at index 3 [ 987.520744] nbd: couldn't find device at index 1 17:02:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x50, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x50}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:46 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e63001"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x48, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:46 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 987.761965] nbd: couldn't find device at index 3 17:02:46 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x48, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 987.858018] nbd: couldn't find device at index 4 17:02:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x2}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 987.906652] nbd: couldn't find device at index 1 17:02:46 executing program 0: syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r0, 0x8933, 0x0) sendmsg$NL802154_CMD_SET_CHANNEL(0xffffffffffffffff, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r2) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x7c, r3, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:46 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x48, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e63001"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 988.069540] nla_parse: 630 callbacks suppressed [ 988.069547] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 988.092032] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 988.102919] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 988.116790] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 17:02:47 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x48, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 988.176085] nbd: couldn't find device at index 1 17:02:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 988.234181] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 988.262272] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 988.271384] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 988.281348] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 988.292347] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 988.314823] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 17:02:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x48, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x48}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:47 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 988.366172] nbd: couldn't find device at index 3 17:02:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x40, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x40}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 988.480198] nbd: couldn't find device at index 1 [ 988.487530] nbd: couldn't find device at index 3 17:02:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1f"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x34, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:47 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 988.702103] nbd: couldn't find device at index 4 17:02:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x85}, 0x0) [ 988.728337] nbd: couldn't find device at index 3 17:02:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x5c, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x5c}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1f"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 988.847769] nbd: couldn't find device at index 1 17:02:47 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x85}, 0x0) 17:02:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00'], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x34, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}}, 0x0) 17:02:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1f"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.010373] nbd: couldn't find device at index 4 [ 989.021876] nbd: couldn't find device at index 1 17:02:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:47 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x34, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}}, 0x0) 17:02:48 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$nbd(&(0x7f00000001c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0x34, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x34}}, 0x0) 17:02:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00'], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.218306] nbd: couldn't find device at index 1 17:02:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r2, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r4, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.297640] nbd: couldn't find device at index 4 17:02:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00'], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.413077] nbd: couldn't find device at index 1 17:02:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.569486] nbd: couldn't find device at index 1 17:02:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.696865] nbd: couldn't find device at index 4 17:02:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.746811] nbd: couldn't find device at index 3 [ 989.754512] nbd: couldn't find device at index 1 17:02:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.937550] nbd: couldn't find device at index 1 17:02:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 989.988914] nbd: couldn't find device at index 4 [ 989.998131] nbd: couldn't find device at index 3 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), 0xffffffffffffffff) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r3, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r1, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r3, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r1, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 990.110732] nbd: couldn't find device at index 1 17:02:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 990.152578] nbd: couldn't find device at index 4 17:02:49 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), 0xffffffffffffffff) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r3, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r1, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 990.193535] nbd: couldn't find device at index 3 17:02:49 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(0x0, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r3, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 990.264489] nbd: couldn't find device at index 1 [ 990.280770] nbd: couldn't find device at index 4 17:02:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(0x0, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r3, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 990.377282] nbd: couldn't find device at index 3 [ 990.382358] nbd: couldn't find device at index 1 17:02:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(0x0, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r3, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 990.506827] nbd: couldn't find device at index 4 [ 990.524417] nbd: couldn't find device at index 3 [ 990.537375] nbd: couldn't find device at index 1 17:02:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000000800"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(0x0, 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(0x0, 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 990.748991] nbd: couldn't find device at index 3 [ 990.756399] nbd: couldn't find device at index 1 17:02:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000000800"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(0x0, 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 990.888931] nbd: couldn't find device at index 1 17:02:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r4, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.010319] nbd: couldn't find device at index 3 17:02:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f60000020000000800"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.147227] nbd: couldn't find device at index 4 17:02:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.196989] nbd: couldn't find device at index 3 [ 991.205425] nbd: couldn't find device at index 1 17:02:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.360007] nbd: couldn't find device at index 4 17:02:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.412758] nbd: couldn't find device at index 3 [ 991.426030] nbd: couldn't find device at index 1 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.541143] nbd: couldn't find device at index 4 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r1, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.603214] nbd: couldn't find device at index 1 17:02:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r3, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r1, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.722498] nbd: couldn't find device at index 4 17:02:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r1, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.784107] nbd: couldn't find device at index 1 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x40050) 17:02:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.882088] nbd: couldn't find device at index 4 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x40050) 17:02:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 991.962996] nbd: couldn't find device at index 1 [ 991.969248] nbd: couldn't find device at index 3 17:02:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:50 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x40050) [ 992.108927] nbd: couldn't find device at index 4 [ 992.119336] nbd: couldn't find device at index 3 17:02:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x60, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x60}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 992.246330] nbd: couldn't find device at index 4 17:02:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 992.357909] nbd: couldn't find device at index 3 [ 992.363662] nbd: couldn't find device at index 1 17:02:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 992.459356] nbd: couldn't find device at index 4 [ 992.477187] nbd: couldn't find device at index 1 [ 992.482109] nbd: couldn't find device at index 3 17:02:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 992.650243] nbd: couldn't find device at index 1 17:02:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 992.782775] nbd: couldn't find device at index 3 17:02:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 992.806444] nbd: couldn't find device at index 1 [ 992.814051] nbd: couldn't find device at index 4 17:02:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.009966] nbd: couldn't find device at index 1 17:02:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:51 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.091981] nla_parse: 740 callbacks suppressed [ 993.091987] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 993.107999] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 993.117045] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 993.130991] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 993.139792] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 993.149257] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 993.160391] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 993.169257] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 993.180486] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 17:02:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={0x0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.189433] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 17:02:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.270437] nbd: couldn't find device at index 4 17:02:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={0x0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.347178] nbd: couldn't find device at index 3 [ 993.358109] nbd: couldn't find device at index 1 17:02:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) 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$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240), 0x80) syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={0x0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.472143] nbd: couldn't find device at index 4 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, 0x0, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.548742] nbd: couldn't find device at index 1 17:02:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, 0x0}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.602964] nbd: couldn't find device at index 3 17:02:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, 0x0, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.668781] nbd: couldn't find device at index 1 [ 993.679625] nbd: couldn't find device at index 4 17:02:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, 0x0}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r3 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, 0x0, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.799979] nbd: couldn't find device at index 4 [ 993.811160] nbd: couldn't find device at index 3 17:02:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r3}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r4, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r8, 0x89f0, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r10 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r10, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r6, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}, {0x8, 0x1, r10}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.924990] nbd: couldn't find device at index 1 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x0, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, 0x0}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 993.952853] nbd: nbd1 already in use [ 993.963101] nbd: couldn't find device at index 4 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x0, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={0x0}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:52 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x0, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.079544] nbd: couldn't find device at index 4 [ 994.098248] nbd: couldn't find device at index 3 17:02:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.210518] nbd: couldn't find device at index 1 17:02:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={0x0}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.268357] nbd: couldn't find device at index 4 17:02:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.316820] nbd: couldn't find device at index 3 [ 994.325213] nbd: couldn't find device at index 1 17:02:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={0x0}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x0, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.500643] nbd: couldn't find device at index 1 [ 994.518136] nbd: couldn't find device at index 4 17:02:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.576051] nbd: couldn't find device at index 3 17:02:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(0x0, r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(0x0, r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.699475] nbd: couldn't find device at index 4 17:02:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(0x0, r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.781557] nbd: couldn't find device at index 3 17:02:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 994.850294] nbd: couldn't find device at index 4 17:02:53 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.063136] nbd: couldn't find device at index 3 17:02:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.176927] nbd: couldn't find device at index 4 17:02:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.197474] nbd: couldn't find device at index 3 17:02:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.294224] nbd: couldn't find device at index 4 17:02:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.426676] nbd: couldn't find device at index 3 [ 995.437327] nbd: couldn't find device at index 4 17:02:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.612320] nbd: couldn't find device at index 3 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(0x0, r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.710601] nbd: couldn't find device at index 4 17:02:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(0x0, r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.770600] nbd: must specify a size in bytes for the device 17:02:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(0x0, r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.863614] nbd: must specify a size in bytes for the device [ 995.881968] nbd: couldn't find device at index 4 17:02:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 995.960530] nbd: must specify a size in bytes for the device 17:02:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:54 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 996.098175] nbd: couldn't find device at index 4 17:02:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, 0x0}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 996.242028] nbd: couldn't find device at index 4 17:02:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, 0x0}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, 0x0}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 996.378341] nbd: couldn't find device at index 1 17:02:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 996.534700] nbd: couldn't find device at index 4 [ 996.543027] nbd: couldn't find device at index 1 17:02:55 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, 0x0}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, &(0x7f0000000680)={0x0}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, 0x0}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa4, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa4}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, &(0x7f0000000680)={0x0}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa0, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa0}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, 0x0}, 0x0) pipe2$watch_queue(0x0, 0x80) r6 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r6, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r2, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000000000006551e23f94c78d4c61a1fc19dfb27f6000002000000080036f7e6300100"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, &(0x7f00000006c0)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x14}, 0x14}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, 0x0}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:56 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa4, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa4}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl802154(&(0x7f0000000280), 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00', 0x0}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, 0x0, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_IFINDEX={0x8, 0x3, r2}, @NL802154_ATTR_WPAN_DEV={0xc}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x68}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r0, 0x0, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(0xffffffffffffffff, &(0x7f00000006c0)={&(0x7f0000000600), 0xc, &(0x7f0000000680)={0x0}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r7, 0x89f0, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(r4, 0x0, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:56 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(0xffffffffffffffff, 0x8933, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_GET_WPAN_PHY(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={0x0}}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES16], 0x34}}, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r1) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r4 = syz_open_dev$mouse(&(0x7f00000001c0), 0x0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(0xffffffffffffffff, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000600)={&(0x7f0000000200), 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xa4, r2, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xa4}, 0x1, 0x0, 0x0, 0x85}, 0x40050) 17:02:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$sock_SIOCGIFINDEX_802154(r1, 0x8933, &(0x7f0000000180)={'wpan0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NL802154_CMD_SET_CHANNEL(r2, &(0x7f00000005c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NL802154_CMD_GET_WPAN_PHY(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x48, 0x0, 0x0, 0x0, 0x0, {}, [@NL802154_ATTR_IFINDEX={0x8}, @NL802154_ATTR_WPAN_PHY={0x8, 0x1, 0x3}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_PHY={0x8}, @NL802154_ATTR_WPAN_DEV={0xc, 0x6, 0x100000001}]}, 0x48}, 0x1, 0x0, 0x0, 0x805}, 0x4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYBLOB], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IEEE802154_LLSEC_ADD_SECLEVEL(r3, 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r4) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000180), 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x34, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, 'wpan0\x00'}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x34}}, 0x0) pipe2$watch_queue(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x80) r7 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r8 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) r9 = syz_open_dev$mouse(&(0x7f00000001c0), 0x7fd, 0x0) ioctl$sock_ipv4_tunnel_SIOCGETTUNNEL(r9, 0x89f0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000600)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000540)={&(0x7f0000000480)={0xac, r5, 0x1, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xbe}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0xac}, 0x1, 0x0, 0x0, 0x85}, 0x40050) [ 997.297370] ================================================================== [ 997.298717] nbd: couldn't find device at index 4 [ 997.304887] BUG: KASAN: use-after-free in refcount_dec_not_one+0x9a/0xc0 [ 997.304895] Read of size 4 at addr ffff8880a9f24118 by task systemd-udevd/8360 [ 997.304897] [ 997.304905] CPU: 0 PID: 8360 Comm: systemd-udevd Not tainted 4.14.302-syzkaller #0 [ 997.304909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 997.304912] Call Trace: [ 997.304922] dump_stack+0x1b2/0x281 [ 997.304939] print_address_description.cold+0x54/0x1d3 [ 997.304947] kasan_report_error.cold+0x8a/0x191 [ 997.304955] ? refcount_dec_not_one+0x9a/0xc0 [ 997.304962] __asan_report_load4_noabort+0x68/0x70 [ 997.304972] ? refcount_dec_not_one+0x9a/0xc0 [ 997.304980] refcount_dec_not_one+0x9a/0xc0 [ 997.304989] refcount_dec_and_mutex_lock+0x1a/0x60 [ 997.304999] nbd_release+0xf3/0x150 [ 997.305006] ? nbd_ioctl+0xad0/0xad0 [ 997.305014] __blkdev_put+0x5aa/0x800 [ 997.305026] ? revalidate_disk+0x1f0/0x1f0 [ 997.305033] ? locks_remove_file+0x2cd/0x420 [ 997.305042] ? blkdev_put+0x75/0x4c0 [ 997.305050] ? blkdev_put+0x4c0/0x4c0 [ 997.305057] blkdev_close+0x86/0xb0 [ 997.305065] __fput+0x25f/0x7a0 [ 997.305077] task_work_run+0x11f/0x190 [ 997.305088] exit_to_usermode_loop+0x1ad/0x200 [ 997.305097] do_syscall_64+0x4a3/0x640 [ 997.305110] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 997.433104] RIP: 0033:0x7fa667dbd270 [ 997.436797] RSP: 002b:00007ffe0e15ac48 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 997.444493] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fa667dbd270 [ 997.451745] RDX: 000000000aba9500 RSI: 0000000000000000 RDI: 0000000000000007 [ 997.458990] RBP: 00007fa668c77710 R08: 0000564084599870 R09: 0000000000000018 [ 997.466234] R10: 00005640845ad838 R11: 0000000000000246 R12: 0000000000000000 [ 997.473484] R13: 00005640845abe40 R14: 0000000000000003 R15: 000000000000000e [ 997.480737] [ 997.482341] Allocated by task 8351: [ 997.485954] kasan_kmalloc+0xeb/0x160 [ 997.489738] kmem_cache_alloc_trace+0x131/0x3d0 [ 997.494398] nbd_dev_add+0x7c/0x800 [ 997.498011] nbd_genl_connect+0x36c/0x13e0 [ 997.502226] genl_family_rcv_msg+0x572/0xb20 [ 997.506609] genl_rcv_msg+0xaf/0x140 [ 997.510295] netlink_rcv_skb+0x125/0x390 [ 997.514335] genl_rcv+0x24/0x40 [ 997.517602] netlink_unicast+0x437/0x610 [ 997.521657] netlink_sendmsg+0x648/0xbc0 [ 997.525693] sock_sendmsg+0xb5/0x100 [ 997.529380] ___sys_sendmsg+0x6c8/0x800 [ 997.533328] __sys_sendmsg+0xa3/0x120 [ 997.537108] SyS_sendmsg+0x27/0x40 [ 997.540631] do_syscall_64+0x1d5/0x640 [ 997.544646] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 997.549815] [ 997.551416] Freed by task 8360: [ 997.554679] kasan_slab_free+0xc3/0x1a0 [ 997.558635] kfree+0xc9/0x250 [ 997.561753] nbd_put.part.0+0x100/0x140 [ 997.565707] nbd_config_put+0x51c/0x6c0 [ 997.569659] nbd_release+0xdf/0x150 [ 997.573265] __blkdev_put+0x5aa/0x800 [ 997.577054] blkdev_close+0x86/0xb0 [ 997.580664] __fput+0x25f/0x7a0 [ 997.583917] task_work_run+0x11f/0x190 [ 997.587797] exit_to_usermode_loop+0x1ad/0x200 [ 997.592376] do_syscall_64+0x4a3/0x640 [ 997.596245] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 997.601411] [ 997.603013] The buggy address belongs to the object at ffff8880a9f24040 [ 997.603013] which belongs to the cache kmalloc-512 of size 512 [ 997.615739] The buggy address is located 216 bytes inside of [ 997.615739] 512-byte region [ffff8880a9f24040, ffff8880a9f24240) [ 997.627595] The buggy address belongs to the page: [ 997.632499] page:ffffea0002a7c900 count:1 mapcount:0 mapping:ffff8880a9f24040 index:0x0 [ 997.640615] flags: 0xfff00000000100(slab) [ 997.644742] raw: 00fff00000000100 ffff8880a9f24040 0000000000000000 0000000100000006 [ 997.652597] raw: ffffea0002aaf8e0 ffffea0002b802a0 ffff88813fe74940 0000000000000000 [ 997.660454] page dumped because: kasan: bad access detected [ 997.666143] [ 997.667751] Memory state around the buggy address: [ 997.672653] ffff8880a9f24000: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 997.679987] ffff8880a9f24080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 997.687321] >ffff8880a9f24100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 997.694656] ^ [ 997.698784] ffff8880a9f24180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 997.706116] ffff8880a9f24200: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 997.713444] ================================================================== [ 997.720774] Disabling lock debugging due to kernel taint [ 997.726927] Kernel panic - not syncing: panic_on_warn set ... [ 997.726927] [ 997.734291] CPU: 0 PID: 8360 Comm: systemd-udevd Tainted: G B 4.14.302-syzkaller #0 [ 997.743290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 997.752629] Call Trace: [ 997.755205] dump_stack+0x1b2/0x281 [ 997.758816] panic+0x1f9/0x42d [ 997.761982] ? add_taint.cold+0x16/0x16 [ 997.765932] ? ___preempt_schedule+0x16/0x18 [ 997.770319] kasan_end_report+0x43/0x49 [ 997.774278] kasan_report_error.cold+0xa7/0x191 [ 997.778935] ? refcount_dec_not_one+0x9a/0xc0 [ 997.783408] __asan_report_load4_noabort+0x68/0x70 [ 997.788311] ? refcount_dec_not_one+0x9a/0xc0 [ 997.792780] refcount_dec_not_one+0x9a/0xc0 [ 997.797087] refcount_dec_and_mutex_lock+0x1a/0x60 [ 997.802000] nbd_release+0xf3/0x150 [ 997.805610] ? nbd_ioctl+0xad0/0xad0 [ 997.809296] __blkdev_put+0x5aa/0x800 [ 997.813090] ? revalidate_disk+0x1f0/0x1f0 [ 997.817299] ? locks_remove_file+0x2cd/0x420 [ 997.821680] ? blkdev_put+0x75/0x4c0 [ 997.825406] ? blkdev_put+0x4c0/0x4c0 [ 997.829184] blkdev_close+0x86/0xb0 [ 997.832786] __fput+0x25f/0x7a0 [ 997.836041] task_work_run+0x11f/0x190 [ 997.839903] exit_to_usermode_loop+0x1ad/0x200 [ 997.844470] do_syscall_64+0x4a3/0x640 [ 997.848354] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 997.853515] RIP: 0033:0x7fa667dbd270 [ 997.857198] RSP: 002b:00007ffe0e15ac48 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 997.864882] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fa667dbd270 [ 997.872126] RDX: 000000000aba9500 RSI: 0000000000000000 RDI: 0000000000000007 [ 997.879370] RBP: 00007fa668c77710 R08: 0000564084599870 R09: 0000000000000018 [ 997.886615] R10: 00005640845ad838 R11: 0000000000000246 R12: 0000000000000000 [ 997.893869] R13: 00005640845abe40 R14: 0000000000000003 R15: 000000000000000e [ 997.901285] Kernel Offset: disabled [ 997.904900] Rebooting in 86400 seconds..