ly_id$netlbl_mgmt(&(0x7f0000000000), r1) 04:57:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r5, 0x1, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x24}, 0x1, 0x0, 0x0, 0x1}, 0x40010) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:23 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r1, 0x84, 0x7, &(0x7f0000000200)={0x1}, 0x4) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000127bd7000fbdbdf250e00000008000400ffffffff08000c00080001006e6264d13d8f4900e0000001"], 0x3c}, 0x1, 0x0, 0x0, 0x20000810}, 0x24000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000ffff00000000000001000000000000000c00020000000000770ca5b43d0000000004000780"], 0x30}}, 0x0) 04:57:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="210600004ef92f66077b94045ebde2a400000000"], 0x24}}, 0x0) 04:57:23 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) 04:57:23 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r1, 0x84, 0x7, &(0x7f0000000200)={0x1}, 0x4) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000127bd7000fbdbdf250e00000008000400ffffffff08000c00080001006e6264d13d8f4900e0000001"], 0x3c}, 0x1, 0x0, 0x0, 0x20000810}, 0x24000000) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000ffff00000000000001000000000000000c00020000000000770ca5b43d0000000004000780"], 0x30}}, 0x0) [ 1322.403937] nbd: couldn't find a device at index 3 04:57:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="210600004ef92f66077b94045ebde2a400000000"], 0x24}}, 0x0) 04:57:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r5, 0x1, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x24}, 0x1, 0x0, 0x0, 0x1}, 0x40010) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r5, 0x1, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x24}, 0x1, 0x0, 0x0, 0x1}, 0x40010) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:23 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000000c0)={0x28, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x28}}, 0x0) 04:57:23 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r1, 0x84, 0x7, &(0x7f0000000200)={0x1}, 0x4) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000127bd7000fbdbdf250e00000008000400ffffffff08000c00080001006e6264d13d8f4900e0000001"], 0x3c}, 0x1, 0x0, 0x0, 0x20000810}, 0x24000000) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000ffff00000000000001000000000000000c00020000000000770ca5b43d0000000004000780"], 0x30}}, 0x0) 04:57:23 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) bind$x25(0xffffffffffffffff, &(0x7f0000000080)={0x9, @remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x1}}, 0x12) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x20, r2, 0x8, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x51) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r3) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000440)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)=ANY=[@ANYBLOB="82859469", @ANYRES16=r4, @ANYBLOB="08002dbd7000fddbdf250500000008000c000000000008000100212d2900080002000200000008000400000000000e0001004e4c424c5f4d474d540000000f0001007b28273a2828245e2d3a000008000200070000001400060000000000000000000000ffff00000000"], 0x70}}, 0x24000800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="3c0000007e896ff5ebceeb46811d58b7e39af8dbd9eb7c9970fb1caf21f805d819449232b85ae46bc49643b0c6e3b26dfb1eb9a6a5dcfebb2b5696883551523719b5bcaa12cd22013758546b07abb4b283f06302ffb860978f88907b62f44ca9e927254597340b444c9507bee0cf2b76897c4164a82d0ee2efc2f3236b79317917cdca121ac08eaec365e324e4bc95b502b0e6ad1bfa94851b7e8729a0d9248d020bd28d", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000580)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x68, r7, 0x400, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_DOMAIN={0x12, 0x1, '\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000}, 0x800) 04:57:23 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) (async) 04:57:23 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 32) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (rerun: 32) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async, rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000000c0)={0x28, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x28}}, 0x0) (rerun: 64) 04:57:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="210600004ef92f66077b94045ebde2a400000000"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="210600004ef92f66077b94045ebde2a400000000"], 0x24}}, 0x0) (async) [ 1322.512065] nbd: must specify a size in bytes for the device [ 1322.532212] nbd: couldn't find a device at index 3 04:57:23 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r4, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1010088}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x60, r7, 0x200, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x60}, 0x1, 0x0, 0x0, 0x40000}, 0xc0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) ioctl$DRM_IOCTL_AGP_ALLOC(0xffffffffffffffff, 0xc0206434, &(0x7f0000000000)={0xc7, 0x0}) ioctl$DRM_IOCTL_AGP_FREE(r3, 0x40206435, &(0x7f00000000c0)={0x0, r8}) ioctl$SNDRV_PCM_IOCTL_LINK(r3, 0x40044160, &(0x7f00000003c0)=0x5bdf) bind$802154_dgram(r3, &(0x7f0000000400)={0x24, @none={0x0, 0x2}}, 0x14) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) write$proc_mixer(r9, &(0x7f0000000180)=[{'SYNTH', @void}, {'RECLEV', @val={' \'', 'Synth'}}], 0x2a) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffe}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x3c}}, 0x0) 04:57:23 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)=ANY=[@ANYBLOB='\f\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8b124800}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x34, r4, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x881) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000200)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x28040002}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x80, r6, 0x1, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x106}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x120}]}, 0x80}, 0x1, 0x0, 0x0, 0x8000}, 0x20048000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000240)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="210608000000c365948008000100"/30, @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r5, 0x1, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x24}, 0x1, 0x0, 0x0, 0x1}, 0x40010) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r5, 0x1, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x24}, 0x1, 0x0, 0x0, 0x1}, 0x40010) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:23 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 64) bind$x25(0xffffffffffffffff, &(0x7f0000000080)={0x9, @remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x1}}, 0x12) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x20, r2, 0x8, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x51) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r3) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000440)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)=ANY=[@ANYBLOB="82859469", @ANYRES16=r4, @ANYBLOB="08002dbd7000fddbdf250500000008000c000000000008000100212d2900080002000200000008000400000000000e0001004e4c424c5f4d474d540000000f0001007b28273a2828245e2d3a000008000200070000001400060000000000000000000000ffff00000000"], 0x70}}, 0x24000800) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="3c0000007e896ff5ebceeb46811d58b7e39af8dbd9eb7c9970fb1caf21f805d819449232b85ae46bc49643b0c6e3b26dfb1eb9a6a5dcfebb2b5696883551523719b5bcaa12cd22013758546b07abb4b283f06302ffb860978f88907b62f44ca9e927254597340b444c9507bee0cf2b76897c4164a82d0ee2efc2f3236b79317917cdca121ac08eaec365e324e4bc95b502b0e6ad1bfa94851b7e8729a0d9248d020bd28d", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) (rerun: 64) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000580)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x68, r7, 0x400, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_DOMAIN={0x12, 0x1, '\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000}, 0x800) 04:57:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000140), r0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x58, r3, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xf}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xfffffffffffffffd}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}]}, 0x58}, 0x1, 0x0, 0x0, 0x4000001}, 0x8000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, 0x0, 0x8, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x4008050}, 0x4000804) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r5, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1322.630211] nbd: must specify a size in bytes for the device [ 1322.636136] nbd: must specify a size in bytes for the device [ 1322.664773] nbd: couldn't find a device at index 3 04:57:23 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r4, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1010088}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x60, r7, 0x200, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x60}, 0x1, 0x0, 0x0, 0x40000}, 0xc0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) ioctl$DRM_IOCTL_AGP_ALLOC(0xffffffffffffffff, 0xc0206434, &(0x7f0000000000)={0xc7, 0x0}) ioctl$DRM_IOCTL_AGP_FREE(r3, 0x40206435, &(0x7f00000000c0)={0x0, r8}) ioctl$SNDRV_PCM_IOCTL_LINK(r3, 0x40044160, &(0x7f00000003c0)=0x5bdf) bind$802154_dgram(r3, &(0x7f0000000400)={0x24, @none={0x0, 0x2}}, 0x14) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) write$proc_mixer(r9, &(0x7f0000000180)=[{'SYNTH', @void}, {'RECLEV', @val={' \'', 'Synth'}}], 0x2a) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffe}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r4, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1010088}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x60, r7, 0x200, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x60}, 0x1, 0x0, 0x0, 0x40000}, 0xc0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) ioctl$DRM_IOCTL_AGP_ALLOC(0xffffffffffffffff, 0xc0206434, &(0x7f0000000000)={0xc7}) (async) ioctl$DRM_IOCTL_AGP_FREE(r3, 0x40206435, &(0x7f00000000c0)={0x0, r8}) (async) ioctl$SNDRV_PCM_IOCTL_LINK(r3, 0x40044160, &(0x7f00000003c0)=0x5bdf) (async) bind$802154_dgram(r3, &(0x7f0000000400)={0x24, @none={0x0, 0x2}}, 0x14) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) (async) write$proc_mixer(r9, &(0x7f0000000180)=[{'SYNTH', @void}, {'RECLEV', @val={' \'', 'Synth'}}], 0x2a) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffe}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x3c}}, 0x0) (async) 04:57:23 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)=ANY=[@ANYBLOB='\f\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8b124800}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x34, r4, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x881) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000200)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x28040002}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x80, r6, 0x1, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x106}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x120}]}, 0x80}, 0x1, 0x0, 0x0, 0x8000}, 0x20048000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000240)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="210608000000c365948008000100"/30, @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)=ANY=[@ANYBLOB='\f\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8b124800}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x34, r4, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x881) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000200)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x28040002}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x80, r6, 0x1, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x106}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x120}]}, 0x80}, 0x1, 0x0, 0x0, 0x8000}, 0x20048000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000240)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="210608000000c365948008000100"/30, @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (async) [ 1322.714327] nbd: couldn't find a device at index 0 [ 1322.722830] nbd: must specify a size in bytes for the device [ 1322.735263] nbd: must specify a size in bytes for the device [ 1322.774739] nbd: couldn't find a device at index 3 04:57:23 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000140), r0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x58, r3, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xf}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xfffffffffffffffd}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}]}, 0x58}, 0x1, 0x0, 0x0, 0x4000001}, 0x8000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:23 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, 0x0, 0x8, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x4008050}, 0x4000804) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r5, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1322.796619] nbd: must specify a size in bytes for the device [ 1322.916089] nbd: must specify a size in bytes for the device [ 1322.924454] nbd: must specify a size in bytes for the device [ 1322.943249] nbd: couldn't find a device at index 3 [ 1322.950565] block nbd0: not configured, cannot reconfigure [ 1322.964486] nbd: must specify a size in bytes for the device [ 1322.975890] nbd: must specify a size in bytes for the device [ 1322.983147] nbd: must specify a size in bytes for the device [ 1322.990287] nbd: must specify a size in bytes for the device [ 1322.996231] nbd: must specify a size in bytes for the device [ 1323.003563] nbd: must specify a size in bytes for the device [ 1323.010453] nbd: must specify a size in bytes for the device [ 1323.016391] nbd: must specify a size in bytes for the device [ 1323.023363] nbd: must specify a size in bytes for the device [ 1323.030401] nbd: must specify a size in bytes for the device [ 1323.036335] nbd: must specify a size in bytes for the device [ 1323.043731] nbd: must specify a size in bytes for the device [ 1323.050381] nbd: must specify a size in bytes for the device [ 1323.056475] nbd: must specify a size in bytes for the device [ 1323.063495] nbd: must specify a size in bytes for the device [ 1323.069856] nbd: must specify a size in bytes for the device [ 1323.075723] nbd: must specify a size in bytes for the device [ 1323.081987] nbd: must specify a size in bytes for the device [ 1323.087959] nbd: must specify a size in bytes for the device [ 1323.093817] nbd: must specify a size in bytes for the device [ 1323.100319] nbd: must specify a size in bytes for the device [ 1323.106156] nbd: must specify a size in bytes for the device [ 1323.112099] nbd: must specify a size in bytes for the device [ 1323.118085] nbd: must specify a size in bytes for the device [ 1323.123936] nbd: must specify a size in bytes for the device [ 1323.129901] nbd: must specify a size in bytes for the device [ 1323.135767] nbd: must specify a size in bytes for the device [ 1323.141683] nbd: must specify a size in bytes for the device [ 1323.147543] nbd: must specify a size in bytes for the device [ 1323.153469] nbd: must specify a size in bytes for the device [ 1323.159382] nbd: must specify a size in bytes for the device [ 1323.165237] nbd: must specify a size in bytes for the device [ 1323.171175] nbd: must specify a size in bytes for the device [ 1323.177025] nbd: must specify a size in bytes for the device [ 1323.182954] nbd: must specify a size in bytes for the device [ 1323.189517] nbd: must specify a size in bytes for the device [ 1323.195374] nbd: must specify a size in bytes for the device [ 1323.201287] nbd: must specify a size in bytes for the device [ 1323.207135] nbd: must specify a size in bytes for the device [ 1323.213077] nbd: must specify a size in bytes for the device [ 1323.219188] nbd: must specify a size in bytes for the device [ 1323.225076] nbd: must specify a size in bytes for the device [ 1323.231547] nbd: must specify a size in bytes for the device [ 1323.237404] nbd: must specify a size in bytes for the device [ 1323.243311] nbd: must specify a size in bytes for the device [ 1323.249261] nbd: must specify a size in bytes for the device [ 1323.255115] nbd: must specify a size in bytes for the device [ 1323.261039] nbd: must specify a size in bytes for the device [ 1323.266894] nbd: must specify a size in bytes for the device [ 1323.272833] nbd: must specify a size in bytes for the device [ 1323.278785] nbd: must specify a size in bytes for the device [ 1323.284742] nbd: must specify a size in bytes for the device [ 1323.290783] nbd: must specify a size in bytes for the device [ 1323.296665] nbd: must specify a size in bytes for the device [ 1323.302585] nbd: must specify a size in bytes for the device [ 1323.308767] nbd: must specify a size in bytes for the device 04:57:24 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000000c0)={0x28, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x28}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000000c0)={0x28, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x28}}, 0x0) (async) 04:57:24 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async, rerun: 32) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r4, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1010088}, 0xc, &(0x7f0000000280)={&(0x7f0000000440)={0x60, r7, 0x200, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x60}, 0x1, 0x0, 0x0, 0x40000}, 0xc0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) ioctl$DRM_IOCTL_AGP_ALLOC(0xffffffffffffffff, 0xc0206434, &(0x7f0000000000)={0xc7, 0x0}) ioctl$DRM_IOCTL_AGP_FREE(r3, 0x40206435, &(0x7f00000000c0)={0x0, r8}) ioctl$SNDRV_PCM_IOCTL_LINK(r3, 0x40044160, &(0x7f00000003c0)=0x5bdf) (async) bind$802154_dgram(r3, &(0x7f0000000400)={0x24, @none={0x0, 0x2}}, 0x14) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) (async) write$proc_mixer(r9, &(0x7f0000000180)=[{'SYNTH', @void}, {'RECLEV', @val={' \'', 'Synth'}}], 0x2a) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffe}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x3c}}, 0x0) 04:57:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) bind$x25(0xffffffffffffffff, &(0x7f0000000080)={0x9, @remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x1}}, 0x12) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x20, r2, 0x8, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x51) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r3) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000440)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)=ANY=[@ANYBLOB="82859469", @ANYRES16=r4, @ANYBLOB="08002dbd7000fddbdf250500000008000c000000000008000100212d2900080002000200000008000400000000000e0001004e4c424c5f4d474d540000000f0001007b28273a2828245e2d3a000008000200070000001400060000000000000000000000ffff00000000"], 0x70}}, 0x24000800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="3c0000007e896ff5ebceeb46811d58b7e39af8dbd9eb7c9970fb1caf21f805d819449232b85ae46bc49643b0c6e3b26dfb1eb9a6a5dcfebb2b5696883551523719b5bcaa12cd22013758546b07abb4b283f06302ffb860978f88907b62f44ca9e927254597340b444c9507bee0cf2b76897c4164a82d0ee2efc2f3236b79317917cdca121ac08eaec365e324e4bc95b502b0e6ad1bfa94851b7e8729a0d9248d020bd28d", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000580)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x68, r7, 0x400, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_DOMAIN={0x12, 0x1, '\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000}, 0x800) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) bind$x25(0xffffffffffffffff, &(0x7f0000000080)={0x9, @remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x1}}, 0x12) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x20, r2, 0x8, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}]}, 0x20}, 0x1, 0x0, 0x0, 0x20000000}, 0x51) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r3) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000440)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)=ANY=[@ANYBLOB="82859469", @ANYRES16=r4, @ANYBLOB="08002dbd7000fddbdf250500000008000c000000000008000100212d2900080002000200000008000400000000000e0001004e4c424c5f4d474d540000000f0001007b28273a2828245e2d3a000008000200070000001400060000000000000000000000ffff00000000"], 0x70}}, 0x24000800) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="3c0000007e896ff5ebceeb46811d58b7e39af8dbd9eb7c9970fb1caf21f805d819449232b85ae46bc49643b0c6e3b26dfb1eb9a6a5dcfebb2b5696883551523719b5bcaa12cd22013758546b07abb4b283f06302ffb860978f88907b62f44ca9e927254597340b444c9507bee0cf2b76897c4164a82d0ee2efc2f3236b79317917cdca121ac08eaec365e324e4bc95b502b0e6ad1bfa94851b7e8729a0d9248d020bd28d", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000580)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x68, r7, 0x400, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_DOMAIN={0x12, 0x1, '\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000}, 0x800) (async) 04:57:24 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000140), r0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x58, r3, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xf}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xfffffffffffffffd}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}]}, 0x58}, 0x1, 0x0, 0x0, 0x4000001}, 0x8000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, 0x0, 0x8, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x4008050}, 0x4000804) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r5, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:24 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)=ANY=[@ANYBLOB='\f\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8b124800}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x34, r4, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x881) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000200)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x28040002}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x80, r6, 0x1, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x106}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8001}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x120}]}, 0x80}, 0x1, 0x0, 0x0, 0x8000}, 0x20048000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000240)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="210608000000c365948008000100"/30, @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) [ 1323.314617] nbd: must specify a size in bytes for the device [ 1323.320536] nbd: must specify a size in bytes for the device 04:57:24 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x58, r2, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2943cf2e}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '.+)'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x55b19241}]}, 0x58}, 0x1, 0x0, 0x0, 0x40010}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) [ 1323.406684] nbd: couldn't find a device at index 3 04:57:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000680)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000640)={&(0x7f0000000940)={0x14, 0x0, 0x20, 0x70b929, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x1}, 0x40) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x34, 0x0, 0x200, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '$('}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000001}, 0x40811) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) r5 = accept4$x25(0xffffffffffffffff, &(0x7f00000001c0)={0x9, @remote}, &(0x7f0000000240)=0x12, 0x800) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) sendmsg$NLBL_MGMT_C_ADD(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x5c, r2, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '-\\$^&/&\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x10}, 0x801) ioctl$SIOCX25SDTEFACILITIES(r5, 0x89eb, &(0x7f0000000280)={0x5, 0x5c, 0x2, 0x0, 0xd9, 0x3, 0xc, "5654fac47df6267993a93201800ce7300b1ff766", "8bda5eeeabb8ae1f0f2e772fa5b873889bcb464b"}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r4, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000010}, 0x20040000) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000840)={&(0x7f00000006c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000800)={&(0x7f0000000740)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="00082dbd7000ffdbdf25010000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="14000000", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="0c00060002000000000000000c00020006000000000000000c0002000500000000000000"], 0x6c}, 0x1, 0x0, 0x0, 0x14048004}, 0x40) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYRESOCT=r0, @ANYRES16=r2, @ANYBLOB="2106000000010000800000010000140072e408000100", @ANYRES32, @ANYRES32=r1, @ANYRES32, @ANYRES16=r1], 0x3c}}, 0x0) 04:57:24 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x58, r2, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2943cf2e}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '.+)'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x55b19241}]}, 0x58}, 0x1, 0x0, 0x0, 0x40010}, 0x80) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) [ 1323.433188] nbd: must specify a size in bytes for the device 04:57:24 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff}) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0xbc, 0x0, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1ff}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}]}, @NBD_ATTR_SIZE_BYTES={0x1, 0x2, 0x100000000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}]}, 0xbc}, 0x1, 0x0, 0x0, 0x4040848}, 0x4044805) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x40, 0x0, 0x400, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r9}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '[.&/!'}]}, 0x40}, 0x1, 0x0, 0x0, 0x10}, 0x4005) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r11, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:24 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x60, 0x0, 0x400, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x33}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}]}, 0x60}, 0x1, 0x0, 0x0, 0x20004000}, 0x5) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000600)={0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000640)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000680)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000007c0)={&(0x7f0000000580)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000780)={&(0x7f00000006c0)={0x9c, 0x0, 0x8, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xaed0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}]}, 0x9c}, 0x1, 0x0, 0x0, 0x24000000}, 0x4000) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x40, r6, 0x1, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x907}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}]}, 0x40}, 0x1, 0x0, 0x0, 0x20008002}, 0x4021) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r11, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x48095}, 0x2000c890) 04:57:24 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x58, r2, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2943cf2e}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '.+)'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x55b19241}]}, 0x58}, 0x1, 0x0, 0x0, 0x40010}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x58, r2, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2943cf2e}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '.+)'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x55b19241}]}, 0x58}, 0x1, 0x0, 0x0, 0x40010}, 0x80) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) 04:57:24 executing program 2: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000380)={0x80000000, &(0x7f00000002c0), &(0x7f0000000300)=[{}, {{0x80000000, 0x0}}]}) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000480)={0x80000000, &(0x7f00000003c0), &(0x7f0000000400)=[{}, {{}, {0x80000000}}]}) ioctl$MEDIA_IOC_SETUP_LINK(r0, 0xc0347c03, &(0x7f00000004c0)={{0x80000000, r1, 0x4, [0x5, 0x1]}, {r2, 0x0, 0x4, [0x7, 0x4]}, 0x2, [0x7, 0x7ca9]}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x44, r5, 0x20, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe5c}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '+(^\t-\x14'}]}, 0x44}, 0x1, 0x0, 0x0, 0x200440c5}, 0x4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)={0x34, r5, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x0, 0x7, 0x0, 0x1, [{}, {0x0, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0x7fffffff}, @NBD_ATTR_SERVER_FLAGS={0x0, 0x5, 0x7}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0x27b38ecb}]}, 0xffffffffffffff8a}, 0x1, 0x0, 0x0, 0x8800}, 0x80000) 04:57:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYRESOCT=r0, @ANYRES16=r2, @ANYBLOB="2106000000010000800000010000140072e408000100", @ANYRES32, @ANYRES32=r1, @ANYRES32, @ANYRES16=r1], 0x3c}}, 0x0) 04:57:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000680)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000640)={&(0x7f0000000940)={0x14, 0x0, 0x20, 0x70b929, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x1}, 0x40) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x34, 0x0, 0x200, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '$('}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000001}, 0x40811) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) (async, rerun: 64) r5 = accept4$x25(0xffffffffffffffff, &(0x7f00000001c0)={0x9, @remote}, &(0x7f0000000240)=0x12, 0x800) (async, rerun: 64) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) sendmsg$NLBL_MGMT_C_ADD(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x5c, r2, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '-\\$^&/&\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x10}, 0x801) ioctl$SIOCX25SDTEFACILITIES(r5, 0x89eb, &(0x7f0000000280)={0x5, 0x5c, 0x2, 0x0, 0xd9, 0x3, 0xc, "5654fac47df6267993a93201800ce7300b1ff766", "8bda5eeeabb8ae1f0f2e772fa5b873889bcb464b"}) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r4, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000010}, 0x20040000) (async) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000840)={&(0x7f00000006c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000800)={&(0x7f0000000740)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="00082dbd7000ffdbdf25010000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="14000000", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="0c00060002000000000000000c00020006000000000000000c0002000500000000000000"], 0x6c}, 0x1, 0x0, 0x0, 0x14048004}, 0x40) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1323.567604] nbd: couldn't find a device at index 3 04:57:24 executing program 2: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000380)={0x80000000, &(0x7f00000002c0), &(0x7f0000000300)=[{}, {{0x80000000, 0x0}}]}) (async, rerun: 64) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000480)={0x80000000, &(0x7f00000003c0), &(0x7f0000000400)=[{}, {{}, {0x80000000}}]}) (rerun: 64) ioctl$MEDIA_IOC_SETUP_LINK(r0, 0xc0347c03, &(0x7f00000004c0)={{0x80000000, r1, 0x4, [0x5, 0x1]}, {r2, 0x0, 0x4, [0x7, 0x4]}, 0x2, [0x7, 0x7ca9]}) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) (async, rerun: 64) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x44, r5, 0x20, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe5c}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '+(^\t-\x14'}]}, 0x44}, 0x1, 0x0, 0x0, 0x200440c5}, 0x4) (rerun: 64) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)={0x34, r5, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x0, 0x7, 0x0, 0x1, [{}, {0x0, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0x7fffffff}, @NBD_ATTR_SERVER_FLAGS={0x0, 0x5, 0x7}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0x27b38ecb}]}, 0xffffffffffffff8a}, 0x1, 0x0, 0x0, 0x8800}, 0x80000) 04:57:24 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff}) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0xbc, 0x0, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1ff}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}]}, @NBD_ATTR_SIZE_BYTES={0x1, 0x2, 0x100000000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}]}, 0xbc}, 0x1, 0x0, 0x0, 0x4040848}, 0x4044805) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x40, 0x0, 0x400, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r9}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '[.&/!'}]}, 0x40}, 0x1, 0x0, 0x0, 0x10}, 0x4005) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r11, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYRESOCT=r0, @ANYRES16=r2, @ANYBLOB="2106000000010000800000010000140072e408000100", @ANYRES32, @ANYRES32=r1, @ANYRES32, @ANYRES16=r1], 0x3c}}, 0x0) 04:57:24 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x60, 0x0, 0x400, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x33}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}]}, 0x60}, 0x1, 0x0, 0x0, 0x20004000}, 0x5) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000600)={0xffffffffffffffff}) (rerun: 32) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async, rerun: 64) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000640)={0xffffffffffffffff}) (async, rerun: 64) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000680)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000007c0)={&(0x7f0000000580)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000780)={&(0x7f00000006c0)={0x9c, 0x0, 0x8, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xaed0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}]}, 0x9c}, 0x1, 0x0, 0x0, 0x24000000}, 0x4000) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x40, r6, 0x1, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x907}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}]}, 0x40}, 0x1, 0x0, 0x0, 0x20008002}, 0x4021) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r11, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x48095}, 0x2000c890) 04:57:24 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000680)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000640)={&(0x7f0000000940)={0x14, 0x0, 0x20, 0x70b929, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x1}, 0x40) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x34, 0x0, 0x200, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '$('}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000001}, 0x40811) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) r5 = accept4$x25(0xffffffffffffffff, &(0x7f00000001c0)={0x9, @remote}, &(0x7f0000000240)=0x12, 0x800) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) sendmsg$NLBL_MGMT_C_ADD(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x5c, r2, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '-\\$^&/&\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x10}, 0x801) ioctl$SIOCX25SDTEFACILITIES(r5, 0x89eb, &(0x7f0000000280)={0x5, 0x5c, 0x2, 0x0, 0xd9, 0x3, 0xc, "5654fac47df6267993a93201800ce7300b1ff766", "8bda5eeeabb8ae1f0f2e772fa5b873889bcb464b"}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r4, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000010}, 0x20040000) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000840)={&(0x7f00000006c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000800)={&(0x7f0000000740)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="00082dbd7000ffdbdf25010000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="14000000", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="0c00060002000000000000000c00020006000000000000000c0002000500000000000000"], 0x6c}, 0x1, 0x0, 0x0, 0x14048004}, 0x40) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000680)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000640)={&(0x7f0000000940)={0x14, 0x0, 0x20, 0x70b929, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x1}, 0x40) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x34, 0x0, 0x200, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '$('}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000001}, 0x40811) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) (async) accept4$x25(0xffffffffffffffff, &(0x7f00000001c0)={0x9, @remote}, &(0x7f0000000240)=0x12, 0x800) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) (async) sendmsg$NLBL_MGMT_C_ADD(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x5c, r2, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '-\\$^&/&\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x10}, 0x801) (async) ioctl$SIOCX25SDTEFACILITIES(r5, 0x89eb, &(0x7f0000000280)={0x5, 0x5c, 0x2, 0x0, 0xd9, 0x3, 0xc, "5654fac47df6267993a93201800ce7300b1ff766", "8bda5eeeabb8ae1f0f2e772fa5b873889bcb464b"}) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x44, r4, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000010}, 0x20040000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000840)={&(0x7f00000006c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000800)={&(0x7f0000000740)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="00082dbd7000ffdbdf25010000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="14000000", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32=r9, @ANYBLOB="0c00060002000000000000000c00020006000000000000000c0002000500000000000000"], 0x6c}, 0x1, 0x0, 0x0, 0x14048004}, 0x40) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) [ 1323.754364] nbd: nbd0 already in use 04:57:24 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x30, r6, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) getsockopt$X25_QBITINCL(0xffffffffffffffff, 0x106, 0x1, &(0x7f0000000000), &(0x7f0000000080)=0x4) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r4) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x30, r7, 0x400, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0xe}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008100}, 0x4000) 04:57:24 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c00024fb1874c6dea8f63fa0e43772aad4328ab1066662a14fb9f9f054a3711a48022c2fcea480b83d368f7dac87b5af50b51893120a659c045abe17a789496bef4d578509d4b77d8a5877055350c20e98b"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)={0x44, r6, 0x400, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x14}, 0x20000) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$can_raw(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000240)=@can={{}, 0x5, 0x0, 0x0, 0x0, "9fa761f07fba9805"}, 0x10}, 0x1, 0x0, 0x0, 0x81}, 0x90) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r2, 0xa, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}]}, 0x38}, 0x1, 0x0, 0x0, 0x805}, 0x4000004) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000480), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000580)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x5c, r7, 0x100, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3be}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffff7f}]}, 0x5c}, 0x1, 0x0, 0x0, 0x48840}, 0x8000000) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000600), r5) sendmsg$NLBL_MGMT_C_REMOVEDEF(r8, &(0x7f00000006c0)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x2a8240e}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x40, r9, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x9}]}, 0x40}, 0x1, 0x0, 0x0, 0x24000040}, 0x84) 04:57:24 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff}) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0xbc, 0x0, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1ff}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}]}, @NBD_ATTR_SIZE_BYTES={0x1, 0x2, 0x100000000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}]}, 0xbc}, 0x1, 0x0, 0x0, 0x4040848}, 0x4044805) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x40, 0x0, 0x400, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r9}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '[.&/!'}]}, 0x40}, 0x1, 0x0, 0x0, 0x10}, 0x4005) (async) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r11, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1323.858237] nbd: couldn't find a device at index 3 04:57:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:25 executing program 2: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000380)={0x80000000, &(0x7f00000002c0), &(0x7f0000000300)=[{}, {{0x80000000, 0x0}}]}) (async, rerun: 64) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000480)={0x80000000, &(0x7f00000003c0), &(0x7f0000000400)=[{}, {{}, {0x80000000}}]}) (rerun: 64) ioctl$MEDIA_IOC_SETUP_LINK(r0, 0xc0347c03, &(0x7f00000004c0)={{0x80000000, r1, 0x4, [0x5, 0x1]}, {r2, 0x0, 0x4, [0x7, 0x4]}, 0x2, [0x7, 0x7ca9]}) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x44, r5, 0x20, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe5c}, @NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '+(^\t-\x14'}]}, 0x44}, 0x1, 0x0, 0x0, 0x200440c5}, 0x4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)={0x34, r5, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x0, 0x7, 0x0, 0x1, [{}, {0x0, 0x1, r6}]}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0x7fffffff}, @NBD_ATTR_SERVER_FLAGS={0x0, 0x5, 0x7}, @NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0x27b38ecb}]}, 0xffffffffffffff8a}, 0x1, 0x0, 0x0, 0x8800}, 0x80000) 04:57:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x30, r6, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) getsockopt$X25_QBITINCL(0xffffffffffffffff, 0x106, 0x1, &(0x7f0000000000), &(0x7f0000000080)=0x4) (async) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r4) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x30, r7, 0x400, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0xe}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008100}, 0x4000) [ 1323.892013] nla_parse: 140 callbacks suppressed [ 1323.892020] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1323.905631] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1323.956958] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. 04:57:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x60, 0x0, 0x400, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x33}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}]}, 0x60}, 0x1, 0x0, 0x0, 0x20004000}, 0x5) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000600)={0xffffffffffffffff}) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000640)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000680)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000007c0)={&(0x7f0000000580)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000780)={&(0x7f00000006c0)={0x9c, 0x0, 0x8, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xaed0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}]}, 0x9c}, 0x1, 0x0, 0x0, 0x24000000}, 0x4000) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)={0x40, r6, 0x1, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x907}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}]}, 0x40}, 0x1, 0x0, 0x0, 0x20008002}, 0x4021) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r11, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24008000}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x48095}, 0x2000c890) 04:57:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000240)={&(0x7f0000000000), 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x74, r4, 0x10, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @loopback}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}]}, 0x74}, 0x1, 0x0, 0x0, 0x4000}, 0x800) 04:57:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1324.000682] nbd: must specify a size in bytes for the device [ 1324.025329] nbd: couldn't find a device at index 3 04:57:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000003c0)={0xffffffffffffffff}) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000400), 0x400100, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000440)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000480)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000004c0)={0xffffffffffffffff}) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000500), 0x10102, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000540)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000680)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000640)={&(0x7f0000000580)={0xb4, 0x0, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}]}]}, 0xb4}, 0x1, 0x0, 0x0, 0x80}, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r10, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r11 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r11, @ANYBLOB="00082bbd700039fddbdf25020000000c000200ffffffff0000000008000100000000000c00040002000000000000000800010000000000844f78694514de6d525a79f615bb95955e84743bcea10000000000"], 0x3c}, 0x1, 0x0, 0x0, 0x44000}, 0x40000) getsockopt$CAN_RAW_RECV_OWN_MSGS(0xffffffffffffffff, 0x65, 0x4, &(0x7f00000002c0), &(0x7f0000000300)=0x4) r12 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r12) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r12) 04:57:25 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c00024fb1874c6dea8f63fa0e43772aad4328ab1066662a14fb9f9f054a3711a48022c2fcea480b83d368f7dac87b5af50b51893120a659c045abe17a789496bef4d578509d4b77d8a5877055350c20e98b"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)={0x44, r6, 0x400, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x14}, 0x20000) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$can_raw(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000240)=@can={{}, 0x5, 0x0, 0x0, 0x0, "9fa761f07fba9805"}, 0x10}, 0x1, 0x0, 0x0, 0x81}, 0x90) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r2, 0xa, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}]}, 0x38}, 0x1, 0x0, 0x0, 0x805}, 0x4000004) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000480), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000580)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x5c, r7, 0x100, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3be}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffff7f}]}, 0x5c}, 0x1, 0x0, 0x0, 0x48840}, 0x8000000) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000600), r5) sendmsg$NLBL_MGMT_C_REMOVEDEF(r8, &(0x7f00000006c0)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x2a8240e}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x40, r9, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x9}]}, 0x40}, 0x1, 0x0, 0x0, 0x24000040}, 0x84) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c00024fb1874c6dea8f63fa0e43772aad4328ab1066662a14fb9f9f054a3711a48022c2fcea480b83d368f7dac87b5af50b51893120a659c045abe17a789496bef4d578509d4b77d8a5877055350c20e98b"], 0x3c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)={0x44, r6, 0x400, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x14}, 0x20000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$can_raw(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000240)=@can={{}, 0x5, 0x0, 0x0, 0x0, "9fa761f07fba9805"}, 0x10}, 0x1, 0x0, 0x0, 0x81}, 0x90) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r2, 0xa, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}]}, 0x38}, 0x1, 0x0, 0x0, 0x805}, 0x4000004) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000480), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000580)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x5c, r7, 0x100, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3be}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffff7f}]}, 0x5c}, 0x1, 0x0, 0x0, 0x48840}, 0x8000000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000600), r5) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r8, &(0x7f00000006c0)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x2a8240e}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x40, r9, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x9}]}, 0x40}, 0x1, 0x0, 0x0, 0x24000040}, 0x84) (async) 04:57:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000240)={&(0x7f0000000000), 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x74, r4, 0x10, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @loopback}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}]}, 0x74}, 0x1, 0x0, 0x0, 0x4000}, 0x800) 04:57:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x30, r6, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) getsockopt$X25_QBITINCL(0xffffffffffffffff, 0x106, 0x1, &(0x7f0000000000), &(0x7f0000000080)=0x4) (async) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r4) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x30, r7, 0x400, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0xe}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x24008100}, 0x4000) 04:57:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x88, r2, 0x300, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, '.:/['}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x31}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4a}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x88}, 0x1, 0x0, 0x0, 0x1}, 0x4000) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) [ 1324.116704] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1324.131723] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1324.141401] nbd: couldn't find a device at index 3 [ 1324.204130] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1324.240173] nbd: must specify a size in bytes for the device 04:57:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), 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$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x2c, r3, 0xd0c, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9b}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10b}]}, 0x2c}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_REMOVE(r4, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x38, r5, 0x2, 0x70bd26, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}]}, 0x38}, 0x1, 0x0, 0x0, 0x8014}, 0x400c044) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x38, r5, 0x1, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xb}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000800}, 0x20000804) [ 1324.290476] nbd: couldn't find a device at index 3 04:57:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000240)={&(0x7f0000000000), 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x74, r4, 0x10, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @loopback}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}]}, 0x74}, 0x1, 0x0, 0x0, 0x4000}, 0x800) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) (async) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000240)={&(0x7f0000000000), 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x74, r4, 0x10, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @loopback}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}]}, 0x74}, 0x1, 0x0, 0x0, 0x4000}, 0x800) (async) 04:57:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) (async, rerun: 64) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (rerun: 64) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async, rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x88, r2, 0x300, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, '.:/['}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x31}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4a}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x88}, 0x1, 0x0, 0x0, 0x1}, 0x4000) (rerun: 64) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000003c0)={0xffffffffffffffff}) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000400), 0x400100, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000440)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000480)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000004c0)={0xffffffffffffffff}) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000500), 0x10102, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000540)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000680)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000640)={&(0x7f0000000580)={0xb4, 0x0, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}]}]}, 0xb4}, 0x1, 0x0, 0x0, 0x80}, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r10, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r11 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r11, @ANYBLOB="00082bbd700039fddbdf25020000000c000200ffffffff0000000008000100000000000c00040002000000000000000800010000000000844f78694514de6d525a79f615bb95955e84743bcea10000000000"], 0x3c}, 0x1, 0x0, 0x0, 0x44000}, 0x40000) getsockopt$CAN_RAW_RECV_OWN_MSGS(0xffffffffffffffff, 0x65, 0x4, &(0x7f00000002c0), &(0x7f0000000300)=0x4) r12 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r12) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r12) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000003c0)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000400), 0x400100, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000440)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000480)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000004c0)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000500), 0x10102, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000540)) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000680)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000640)={&(0x7f0000000580)={0xb4, 0x0, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}]}]}, 0xb4}, 0x1, 0x0, 0x0, 0x80}, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r10, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r11, @ANYBLOB="00082bbd700039fddbdf25020000000c000200ffffffff0000000008000100000000000c00040002000000000000000800010000000000844f78694514de6d525a79f615bb95955e84743bcea10000000000"], 0x3c}, 0x1, 0x0, 0x0, 0x44000}, 0x40000) (async) getsockopt$CAN_RAW_RECV_OWN_MSGS(0xffffffffffffffff, 0x65, 0x4, &(0x7f00000002c0), &(0x7f0000000300)=0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r12) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r12) (async) 04:57:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x2c, r3, 0xd0c, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9b}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10b}]}, 0x2c}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_REMOVE(r4, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x38, r5, 0x2, 0x70bd26, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}]}, 0x38}, 0x1, 0x0, 0x0, 0x8014}, 0x400c044) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x38, r5, 0x1, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xb}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000800}, 0x20000804) [ 1324.316496] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1324.343899] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 04:57:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40210}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x2c, r4, 0x800, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc4f4}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x805}, 0x8801) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r5, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r8, 0x0, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '/\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}]}, 0x7c}}, 0x8000) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x38, r9, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '/\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x38}}, 0x0) 04:57:25 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c00024fb1874c6dea8f63fa0e43772aad4328ab1066662a14fb9f9f054a3711a48022c2fcea480b83d368f7dac87b5af50b51893120a659c045abe17a789496bef4d578509d4b77d8a5877055350c20e98b"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)={0x44, r6, 0x400, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x44}, 0x1, 0x0, 0x0, 0x14}, 0x20000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$can_raw(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000240)=@can={{}, 0x5, 0x0, 0x0, 0x0, "9fa761f07fba9805"}, 0x10}, 0x1, 0x0, 0x0, 0x81}, 0x90) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r2, 0xa, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}]}, 0x38}, 0x1, 0x0, 0x0, 0x805}, 0x4000004) (async) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000480), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000580)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000540)={&(0x7f00000004c0)={0x5c, r7, 0x100, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3be}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffff7f}]}, 0x5c}, 0x1, 0x0, 0x0, 0x48840}, 0x8000000) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000600), r5) sendmsg$NLBL_MGMT_C_REMOVEDEF(r8, &(0x7f00000006c0)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x2a8240e}, 0xc, &(0x7f0000000680)={&(0x7f0000000640)={0x40, r9, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x9}]}, 0x40}, 0x1, 0x0, 0x0, 0x24000040}, 0x84) [ 1324.453341] nbd: must specify at least one socket 04:57:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x88, r2, 0x300, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, '.:/['}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x31}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4a}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x88}, 0x1, 0x0, 0x0, 0x1}, 0x4000) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="7464a9ce", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x2c, r3, 0xd0c, 0x0, 0x0, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9b}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10b}]}, 0x2c}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_REMOVE(r4, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x38, r5, 0x2, 0x70bd26, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}]}, 0x38}, 0x1, 0x0, 0x0, 0x8014}, 0x400c044) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x38, r5, 0x1, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xb}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000800}, 0x20000804) 04:57:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40210}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x2c, r4, 0x800, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc4f4}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x805}, 0x8801) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r5, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r8, 0x0, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '/\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}]}, 0x7c}}, 0x8000) (async, rerun: 32) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x38, r9, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '/\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x38}}, 0x0) 04:57:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000003c0)={0xffffffffffffffff}) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000400), 0x400100, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000440)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000480)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000004c0)={0xffffffffffffffff}) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000500), 0x10102, 0x0) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000540)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000680)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000640)={&(0x7f0000000580)={0xb4, 0x0, 0x400, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ','}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8}]}]}, 0xb4}, 0x1, 0x0, 0x0, 0x80}, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r10, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r11 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r11, @ANYBLOB="00082bbd700039fddbdf25020000000c000200ffffffff0000000008000100000000000c00040002000000000000000800010000000000844f78694514de6d525a79f615bb95955e84743bcea10000000000"], 0x3c}, 0x1, 0x0, 0x0, 0x44000}, 0x40000) (async) getsockopt$CAN_RAW_RECV_OWN_MSGS(0xffffffffffffffff, 0x65, 0x4, &(0x7f00000002c0), &(0x7f0000000300)=0x4) (async) r12 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r12) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r12) [ 1324.535874] nbd: must specify a size in bytes for the device 04:57:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19011500000000000000030000002800010000000000"], 0x1c}}, 0x0) 04:57:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="7464a9ce", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="7464a9ce", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) (async) 04:57:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="00006e3e2646f8ecc5116b58b5240000", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000480)=ANY=[@ANYBLOB="2c0000001eb23c3eeee5b65256f00013603a4fbd3c4bf6eb1f1bab0a01d388b2f9f1c99266247f16dfc2e154ca917819d21edcc23ce580498fa954a19a21dbcbd99c169fbd73fa43f4be421bfbe9a8f3cb8433401b59fa10ee70f83511164f6abf5e", @ANYRES16=r6, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) sendmsg$NLBL_MGMT_C_LISTALL(r7, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000400)={&(0x7f00000003c0)={0x38, r6, 0x300, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x4000000) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r6, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '/\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x58}}, 0x4000001) 04:57:25 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYRES32=r0, @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="535d5cd8d9e4f3063676a3496b9695c46f0e5a48", @ANYRESHEX=r0, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) sendmsg$NLBL_MGMT_C_ADD(r8, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x2c, r7, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4810}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r4, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r7, 0x10, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20008811}, 0x20002010) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, 0x0, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000000}, 0x84) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000600)={&(0x7f0000000540)={0x88, r2, 0x8, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000804}, 0xc000) 04:57:25 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="7464a9ce", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="7464a9ce", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) (async) 04:57:25 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19011500000000000000030000002800010000000000"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19011500000000000000030000002800010000000000"], 0x1c}}, 0x0) (async) [ 1324.660612] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1324.683757] nbd: must specify a device to reconfigure 04:57:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x80, r6, 0x10, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @private=0xa010101}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x26}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x80}}, 0xc0) 04:57:25 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="00006e3e2646f8ecc5116b58b5240000", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000480)=ANY=[@ANYBLOB="2c0000001eb23c3eeee5b65256f00013603a4fbd3c4bf6eb1f1bab0a01d388b2f9f1c99266247f16dfc2e154ca917819d21edcc23ce580498fa954a19a21dbcbd99c169fbd73fa43f4be421bfbe9a8f3cb8433401b59fa10ee70f83511164f6abf5e", @ANYRES16=r6, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) sendmsg$NLBL_MGMT_C_LISTALL(r7, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000400)={&(0x7f00000003c0)={0x38, r6, 0x300, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x4000000) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r6, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '/\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x58}}, 0x4000001) 04:57:25 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYRES32=r0, @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="535d5cd8d9e4f3063676a3496b9695c46f0e5a48", @ANYRESHEX=r0, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async, rerun: 64) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) (async) sendmsg$NLBL_MGMT_C_ADD(r8, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x2c, r7, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4810}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r4, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r7, 0x10, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20008811}, 0x20002010) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, 0x0, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000000}, 0x84) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) (async) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000600)={&(0x7f0000000540)={0x88, r2, 0x8, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000804}, 0xc000) [ 1324.709118] nbd: must specify a size in bytes for the device 04:57:25 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40210}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x2c, r4, 0x800, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc4f4}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x2c}, 0x1, 0x0, 0x0, 0x805}, 0x8801) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r5, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r8, 0x0, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '/\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}]}, 0x7c}}, 0x8000) (async) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x38, r9, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '/\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x38}}, 0x0) 04:57:25 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) [ 1324.743299] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1324.764573] nbd: must specify a device to reconfigure 04:57:25 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) 04:57:25 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x80, r6, 0x10, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @private=0xa010101}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x26}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x80}}, 0xc0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x80, r6, 0x10, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @private=0xa010101}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x26}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x80}}, 0xc0) (async) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19011500000000000000030000002800010000000000"], 0x1c}}, 0x0) [ 1324.843060] nbd: must specify a device to reconfigure 04:57:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="00006e3e2646f8ecc5116b58b5240000", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000480)=ANY=[@ANYBLOB="2c0000001eb23c3eeee5b65256f00013603a4fbd3c4bf6eb1f1bab0a01d388b2f9f1c99266247f16dfc2e154ca917819d21edcc23ce580498fa954a19a21dbcbd99c169fbd73fa43f4be421bfbe9a8f3cb8433401b59fa10ee70f83511164f6abf5e", @ANYRES16=r6, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) sendmsg$NLBL_MGMT_C_LISTALL(r7, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000400)={&(0x7f00000003c0)={0x38, r6, 0x300, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x4000000) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r6, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '/\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x58}}, 0x4000001) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="00006e3e2646f8ecc5116b58b5240000", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000480)=ANY=[@ANYBLOB="2c0000001eb23c3eeee5b65256f00013603a4fbd3c4bf6eb1f1bab0a01d388b2f9f1c99266247f16dfc2e154ca917819d21edcc23ce580498fa954a19a21dbcbd99c169fbd73fa43f4be421bfbe9a8f3cb8433401b59fa10ee70f83511164f6abf5e", @ANYRES16=r6, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) (async) sendmsg$NLBL_MGMT_C_LISTALL(r7, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000400)={&(0x7f00000003c0)={0x38, r6, 0x300, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}]}, 0x38}, 0x1, 0x0, 0x0, 0xc4}, 0x4000000) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, r6, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '/\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x58}}, 0x4000001) (async) 04:57:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYRES32=r0, @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="535d5cd8d9e4f3063676a3496b9695c46f0e5a48", @ANYRESHEX=r0, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) (async, rerun: 64) sendmsg$NLBL_MGMT_C_ADD(r8, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x2c, r7, 0x400, 0x70bd26, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4810}, 0x0) (async, rerun: 64) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r4, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r7, 0x10, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20008811}, 0x20002010) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, 0x0, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000000}, 0x84) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r9, 0x82000000) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000640)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000600)={&(0x7f0000000540)={0x88, r2, 0x8, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r9}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000001}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000804}, 0xc000) (rerun: 64) 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000110", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:26 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x50, r5, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4102}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x55}]}, 0x50}, 0x1, 0x0, 0x0, 0x4000800}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) sendmsg$NLBL_MGMT_C_PROTOCOLS(r6, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x3c, r4, 0x200, 0x70bd25, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x20}}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '^\\'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000001}, 0x24008880) [ 1324.897213] nbd: must specify a size in bytes for the device [ 1324.925082] nbd: must specify a device to reconfigure 04:57:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) gettid() r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) bpf$MAP_CREATE(0x0, &(0x7f00000001c0)=@base={0x7, 0x7, 0x4000000, 0x77b, 0x1000, 0xffffffffffffffff, 0x7, '\x00', 0x0, 0xffffffffffffffff, 0x5, 0x0, 0x1}, 0x48) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x24, r1, 0x621, 0x8, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x0) ioctl$SNAPSHOT_FREE(0xffffffffffffffff, 0x3305) 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000110", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) [ 1325.030622] nbd: couldn't find a device at index 3 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x50, r5, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4102}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x55}]}, 0x50}, 0x1, 0x0, 0x0, 0x4000800}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r6, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x3c, r4, 0x200, 0x70bd25, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x20}}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '^\\'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000001}, 0x24008880) 04:57:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) gettid() r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) bpf$MAP_CREATE(0x0, &(0x7f00000001c0)=@base={0x7, 0x7, 0x4000000, 0x77b, 0x1000, 0xffffffffffffffff, 0x7, '\x00', 0x0, 0xffffffffffffffff, 0x5, 0x0, 0x1}, 0x48) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x24, r1, 0x621, 0x8, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x0) ioctl$SNAPSHOT_FREE(0xffffffffffffffff, 0x3305) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) gettid() (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) bpf$MAP_CREATE(0x0, &(0x7f00000001c0)=@base={0x7, 0x7, 0x4000000, 0x77b, 0x1000, 0xffffffffffffffff, 0x7, '\x00', 0x0, 0xffffffffffffffff, 0x5, 0x0, 0x1}, 0x48) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x24, r1, 0x621, 0x8, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x0) (async) ioctl$SNAPSHOT_FREE(0xffffffffffffffff, 0x3305) (async) 04:57:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x80, r6, 0x10, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @private=0xa010101}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x26}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x80}}, 0xc0) 04:57:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r5, 0x1}, 0x14}}, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x98, r5, 0x400, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x98}, 0x1, 0x0, 0x0, 0x10000000}, 0x4044015) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r8, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x10800, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, 0x0, 0x200, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000110", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) [ 1325.111958] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) gettid() r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) bpf$MAP_CREATE(0x0, &(0x7f00000001c0)=@base={0x7, 0x7, 0x4000000, 0x77b, 0x1000, 0xffffffffffffffff, 0x7, '\x00', 0x0, 0xffffffffffffffff, 0x5, 0x0, 0x1}, 0x48) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x24, r1, 0x621, 0x8, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x0) ioctl$SNAPSHOT_FREE(0xffffffffffffffff, 0x3305) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) gettid() (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) bpf$MAP_CREATE(0x0, &(0x7f00000001c0)=@base={0x7, 0x7, 0x4000000, 0x77b, 0x1000, 0xffffffffffffffff, 0x7, '\x00', 0x0, 0xffffffffffffffff, 0x5, 0x0, 0x1}, 0x48) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)={0x24, r1, 0x621, 0x8, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x0) (async) ioctl$SNAPSHOT_FREE(0xffffffffffffffff, 0x3305) (async) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x50, r5, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4102}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x55}]}, 0x50}, 0x1, 0x0, 0x0, 0x4000800}, 0x4000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) sendmsg$NLBL_MGMT_C_PROTOCOLS(r6, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x3c, r4, 0x200, 0x70bd25, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x20}}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '^\\'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000001}, 0x24008880) 04:57:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$x25(0x9, 0x5, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 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$netlbl_mgmt(&(0x7f00000002c0), r3) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r7, &(0x7f0000000600)={&(0x7f0000000500)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x58, r2, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\'({$-'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x17e9}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1f}]}, 0x58}, 0x1, 0x0, 0x0, 0x8804}, 0x4000) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r4) sendmsg$NLBL_MGMT_C_LISTALL(r6, &(0x7f00000004c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0x8c, r8, 0x8, 0x3, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast1}}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '^:/*\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xc}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x8c}, 0x1, 0x0, 0x0, 0x1}, 0x804) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x40, r5, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x40}, 0x1, 0x0, 0x0, 0x4048000}, 0x4000) [ 1325.231297] nbd: socks must be embedded in a SOCK_ITEM attr [ 1325.244793] nbd: must specify at least one socket [ 1325.250419] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x58, 0x0, 0x400, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x58}, 0x1, 0x0, 0x0, 0x28040}, 0x40) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x20, r1, 0x300, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x8010}, 0x20008844) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, 0x0, 0x10, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x80) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="1c000000f6b576b5be0a9e0921129b07c6d9230eabd37d2c2a12baad99cdb24e0f02fcc5616462ccc299e3d143e2b3bc2c6a0bf52ea2d072202c825fcf43c8e87c73b89a54a17992bf59695b90a8c741416951b3f90b4c034197613a18a268d8803ab6594004d9f98c2a2e6dc39e1f44c2fbe6f2ca3f8a0a7154f8d0f1c50bec320df471b7", @ANYRES16=r3, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) 04:57:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, r4, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}]}, 0x28}}, 0x4048080) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) [ 1325.279995] nbd: couldn't find a device at index 3 04:57:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x10800, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, 0x0, 0x200, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x10800, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, 0x0, 0x200, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) (async) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x20, r1, 0x300, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x8010}, 0x20008844) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, 0x0, 0x10, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x80) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="1c000000f6b576b5be0a9e0921129b07c6d9230eabd37d2c2a12baad99cdb24e0f02fcc5616462ccc299e3d143e2b3bc2c6a0bf52ea2d072202c825fcf43c8e87c73b89a54a17992bf59695b90a8c741416951b3f90b4c034197613a18a268d8803ab6594004d9f98c2a2e6dc39e1f44c2fbe6f2ca3f8a0a7154f8d0f1c50bec320df471b7", @ANYRES16=r3, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) 04:57:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r5, 0x1}, 0x14}}, 0x0) (async) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x98, r5, 0x400, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x98}, 0x1, 0x0, 0x0, 0x10000000}, 0x4044015) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r8, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x58, 0x0, 0x400, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x58}, 0x1, 0x0, 0x0, 0x28040}, 0x40) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000380)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x20, r1, 0x300, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc}]}, 0x20}, 0x1, 0x0, 0x0, 0x8010}, 0x20008844) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, 0x0, 0x10, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x80) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="1c000000f6b576b5be0a9e0921129b07c6d9230eabd37d2c2a12baad99cdb24e0f02fcc5616462ccc299e3d143e2b3bc2c6a0bf52ea2d072202c825fcf43c8e87c73b89a54a17992bf59695b90a8c741416951b3f90b4c034197613a18a268d8803ab6594004d9f98c2a2e6dc39e1f44c2fbe6f2ca3f8a0a7154f8d0f1c50bec320df471b7", @ANYRES16=r3, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) 04:57:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, r4, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}]}, 0x28}}, 0x4048080) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, r4, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}]}, 0x28}}, 0x4048080) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) (async) [ 1325.414512] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r5, 0x1}, 0x14}}, 0x0) (async) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x98, r5, 0x400, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x98}, 0x1, 0x0, 0x0, 0x10000000}, 0x4044015) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r8, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$x25(0x9, 0x5, 0x0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 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$netlbl_mgmt(&(0x7f00000002c0), r3) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r7, &(0x7f0000000600)={&(0x7f0000000500)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x58, r2, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\'({$-'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x17e9}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1f}]}, 0x58}, 0x1, 0x0, 0x0, 0x8804}, 0x4000) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r4) sendmsg$NLBL_MGMT_C_LISTALL(r6, &(0x7f00000004c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0x8c, r8, 0x8, 0x3, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast1}}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '^:/*\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xc}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x8c}, 0x1, 0x0, 0x0, 0x1}, 0x804) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x40, r5, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x40}, 0x1, 0x0, 0x0, 0x4048000}, 0x4000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$x25(0x9, 0x5, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r7, &(0x7f0000000600)={&(0x7f0000000500)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x58, r2, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\'({$-'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x17e9}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1f}]}, 0x58}, 0x1, 0x0, 0x0, 0x8804}, 0x4000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r4) (async) sendmsg$NLBL_MGMT_C_LISTALL(r6, &(0x7f00000004c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0x8c, r8, 0x8, 0x3, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast1}}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '^:/*\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xc}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x8c}, 0x1, 0x0, 0x0, 0x1}, 0x804) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x40, r5, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x40}, 0x1, 0x0, 0x0, 0x4048000}, 0x4000) (async) 04:57:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x10800, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x58, 0x0, 0x200, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x58, 0x0, 0x400, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x58}, 0x1, 0x0, 0x0, 0x28040}, 0x40) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000080)={0x58, 0x0, 0x400, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x58}, 0x1, 0x0, 0x0, 0x28040}, 0x40) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_RAW_TRACEPOINT_OPEN_UNNAMED(0x11, &(0x7f0000000000), 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="210600000000000000ce250000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_RAW_TRACEPOINT_OPEN_UNNAMED(0x11, &(0x7f0000000000), 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) bpf$BPF_RAW_TRACEPOINT_OPEN_UNNAMED(0x11, &(0x7f0000000000), 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="210600000000000000ce250000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) [ 1325.601589] nbd: couldn't find a device at index 3 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x1, 0x70bd2a, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}]}, 0x30}}, 0x44041) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, 0x0, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:26 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$x25(0x9, 0x5, 0x0) (async, rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_CONNECT(r7, &(0x7f0000000600)={&(0x7f0000000500)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x58, r2, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '\'({$-'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x17e9}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1f}]}, 0x58}, 0x1, 0x0, 0x0, 0x8804}, 0x4000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) (async) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r4) sendmsg$NLBL_MGMT_C_LISTALL(r6, &(0x7f00000004c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0x8c, r8, 0x8, 0x3, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast1}}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '^:/*\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xc}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x8c}, 0x1, 0x0, 0x0, 0x1}, 0x804) (async, rerun: 64) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async, rerun: 64) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x40, r5, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x40}, 0x1, 0x0, 0x0, 0x4048000}, 0x4000) 04:57:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, r4, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x401}]}, 0x28}}, 0x4048080) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) [ 1325.645534] nbd: couldn't find a device at index 3 04:57:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="210600000000000000ce250000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="210600000000000000ce250000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) (async) 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x1, 0x70bd2a, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}]}, 0x30}}, 0x44041) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, 0x0, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) bpf$BPF_RAW_TRACEPOINT_OPEN_UNNAMED(0x11, &(0x7f0000000000), 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) [ 1325.671503] nbd: socks must be embedded in a SOCK_ITEM attr [ 1325.688010] nbd: couldn't find a device at index 3 04:57:26 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r2) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, r4, 0x400, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x28}, 0x1, 0x0, 0x0, 0x20040900}, 0x48010) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1325.753919] nbd: couldn't find a device at index 3 04:57:26 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x1, 0x70bd2a, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}]}, 0x30}}, 0x44041) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, 0x0, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x1, 0x70bd2a, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}]}, 0x30}}, 0x44041) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, 0x0, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) 04:57:26 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x1000000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1325.780806] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:26 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, 0x0, 0xf08, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$,*\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x40040}, 0x40040) stat(&(0x7f0000000240)='./file0\x00', &(0x7f0000000280)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x48, r6, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\''}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}]}, 0x48}, 0x1, 0x0, 0x0, 0x64000800}, 0x20000000) getgroups(0x2, &(0x7f0000000300)=[0x0, r2]) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r7) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r9) sendmsg$NLBL_MGMT_C_LISTDEF(r10, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000440)={&(0x7f00000003c0)={0x58, r11, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010101}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x58}, 0x1, 0x0, 0x0, 0x800}, 0x404c881) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r7) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r8, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:26 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r2) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, r4, 0x400, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x28}, 0x1, 0x0, 0x0, 0x20040900}, 0x48010) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r2) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, r4, 0x400, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x28}, 0x1, 0x0, 0x0, 0x20040900}, 0x48010) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVE(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r6, 0x800, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x4}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}]}, 0x38}, 0x1, 0x0, 0x0, 0x80}, 0x50) 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) openat$cgroup_freezer_state(0xffffffffffffffff, &(0x7f0000000000), 0x2, 0x0) r3 = socket$rds(0x15, 0x5, 0x0) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) getsockopt$X25_QBITINCL(r4, 0x106, 0x1, &(0x7f00000000c0), &(0x7f0000000140)=0x4) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYRES16=r3, @ANYRES64=r2, @ANYBLOB="21069bac42d800000000010000000c00060001000000000000100c000200000000000000000004000780ff228deb577d52b0134942413d05267dba6cd153500ad6bbea6c8db25e7eb33b8d45d183ee3a9902000000297cb4b0d04b528cc489da69bb3b35eefd9e9f2118369b58143498e2e64c15f75ccebce071d74b47827158d8c1f6fc3af4c84e0639e02b9a71a6af625b16b1ded6ba2ee2a9a7d4cfc68ab3e291a84387b58772c589823bbd09571295f0e2a6f1abef0100682a3ce8e8b7db662915e7b969c6140f81"], 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x200800, 0x0) ioctl$SNAPSHOT_PLATFORM_SUPPORT(r5, 0x330f, 0x0) 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x1000000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:27 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) ioctl$PPPIOCSCOMPRESS(r0, 0x4010744d) 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$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000002c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="0000000045a1fbd5d5f1324c21fb570007f4a68978708e8b84289762cdbc3ce9cdb29e7223e21c9e183484310dab929c43bd182f2cf7efe0bd45a23b8684e05f0d207958b257ffe91deb010c47a8061a930cb85244f42f9dfea2ce1b4549c9e38c5f37fc5205d54f7c6a695c9eaf95336650ae2c2d27fc2fc91c573675385972f8210a2e03796f16421262b969ffcf3fdd233d1e36cd2ecc0fa66a68d8cf26ebfca76a162c5734958a4bc5c72ef3a130ca70fa18c833", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, 0x0, 0xf08, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$,*\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x40040}, 0x40040) (async, rerun: 64) stat(&(0x7f0000000240)='./file0\x00', &(0x7f0000000280)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) (rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x48, r6, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\''}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}]}, 0x48}, 0x1, 0x0, 0x0, 0x64000800}, 0x20000000) (async) getgroups(0x2, &(0x7f0000000300)=[0x0, r2]) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r7) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r11 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r9) sendmsg$NLBL_MGMT_C_LISTDEF(r10, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000440)={&(0x7f00000003c0)={0x58, r11, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010101}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x58}, 0x1, 0x0, 0x0, 0x800}, 0x404c881) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r7) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r8, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) (rerun: 32) [ 1325.896802] nbd: socks must be embedded in a SOCK_ITEM attr [ 1325.914920] nbd: couldn't find a device at index 3 [ 1325.920523] nbd: must specify at least one socket 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x1000000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x1000000, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 64) openat$cgroup_freezer_state(0xffffffffffffffff, &(0x7f0000000000), 0x2, 0x0) (rerun: 64) r3 = socket$rds(0x15, 0x5, 0x0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) getsockopt$X25_QBITINCL(r4, 0x106, 0x1, &(0x7f00000000c0), &(0x7f0000000140)=0x4) (async) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYRES16=r3, @ANYRES64=r2, @ANYBLOB="21069bac42d800000000010000000c00060001000000000000100c000200000000000000000004000780ff228deb577d52b0134942413d05267dba6cd153500ad6bbea6c8db25e7eb33b8d45d183ee3a9902000000297cb4b0d04b528cc489da69bb3b35eefd9e9f2118369b58143498e2e64c15f75ccebce071d74b47827158d8c1f6fc3af4c84e0639e02b9a71a6af625b16b1ded6ba2ee2a9a7d4cfc68ab3e291a84387b58772c589823bbd09571295f0e2a6f1abef0100682a3ce8e8b7db662915e7b969c6140f81"], 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x200800, 0x0) ioctl$SNAPSHOT_PLATFORM_SUPPORT(r5, 0x330f, 0x0) 04:57:27 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async, rerun: 64) ioctl$PPPIOCSCOMPRESS(r0, 0x4010744d) (rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000002c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="0000000045a1fbd5d5f1324c21fb570007f4a68978708e8b84289762cdbc3ce9cdb29e7223e21c9e183484310dab929c43bd182f2cf7efe0bd45a23b8684e05f0d207958b257ffe91deb010c47a8061a930cb85244f42f9dfea2ce1b4549c9e38c5f37fc5205d54f7c6a695c9eaf95336650ae2c2d27fc2fc91c573675385972f8210a2e03796f16421262b969ffcf3fdd233d1e36cd2ecc0fa66a68d8cf26ebfca76a162c5734958a4bc5c72ef3a130ca70fa18c833", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) [ 1326.031595] nbd: must specify a size in bytes for the device [ 1326.059883] nbd: socks must be embedded in a SOCK_ITEM attr [ 1326.075716] nbd: must specify at least one socket 04:57:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r2) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, r4, 0x400, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x28}, 0x1, 0x0, 0x0, 0x20040900}, 0x48010) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (rerun: 32) [ 1326.081032] nbd: couldn't find a device at index 3 04:57:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVE(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r6, 0x800, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x4}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}]}, 0x38}, 0x1, 0x0, 0x0, 0x80}, 0x50) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVE(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r6, 0x800, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x4}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}]}, 0x38}, 0x1, 0x0, 0x0, 0x80}, 0x50) (async) [ 1326.102223] nbd: couldn't find a device at index 3 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) openat$cgroup_freezer_state(0xffffffffffffffff, &(0x7f0000000000), 0x2, 0x0) (async) r3 = socket$rds(0x15, 0x5, 0x0) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) getsockopt$X25_QBITINCL(r4, 0x106, 0x1, &(0x7f00000000c0), &(0x7f0000000140)=0x4) (async) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYRES16=r3, @ANYRES64=r2, @ANYBLOB="21069bac42d800000000010000000c00060001000000000000100c000200000000000000000004000780ff228deb577d52b0134942413d05267dba6cd153500ad6bbea6c8db25e7eb33b8d45d183ee3a9902000000297cb4b0d04b528cc489da69bb3b35eefd9e9f2118369b58143498e2e64c15f75ccebce071d74b47827158d8c1f6fc3af4c84e0639e02b9a71a6af625b16b1ded6ba2ee2a9a7d4cfc68ab3e291a84387b58772c589823bbd09571295f0e2a6f1abef0100682a3ce8e8b7db662915e7b969c6140f81"], 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x200800, 0x0) ioctl$SNAPSHOT_PLATFORM_SUPPORT(r5, 0x330f, 0x0) 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x24, 0x0, 0x20, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, r5, 0x2, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}]}, 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x800) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c230000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x38, r6, 0x400, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}]}, 0x38}, 0x1, 0x0, 0x0, 0x4040004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) [ 1326.140253] nbd: must specify a size in bytes for the device 04:57:27 executing program 0: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async) ioctl$PPPIOCSCOMPRESS(r0, 0x4010744d) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000002c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="0000000045a1fbd5d5f1324c21fb570007f4a68978708e8b84289762cdbc3ce9cdb29e7223e21c9e183484310dab929c43bd182f2cf7efe0bd45a23b8684e05f0d207958b257ffe91deb010c47a8061a930cb85244f42f9dfea2ce1b4549c9e38c5f37fc5205d54f7c6a695c9eaf95336650ae2c2d27fc2fc91c573675385972f8210a2e03796f16421262b969ffcf3fdd233d1e36cd2ecc0fa66a68d8cf26ebfca76a162c5734958a4bc5c72ef3a130ca70fa18c833", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="2c0000001c87cad180c8691a1981ecacdad934f1e03eb078af1cacbd1d1e77494465654d980c8fc000db35d71a834fbfaf479856b2a58dd23256fdf47886af7500595fe4f3e8317356113ff2f1ef3859b56b4439041b", @ANYRES16=r4, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10081000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x5c, r4, 0xc24, 0x70bd27, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x25}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x39}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}]}, 0x5c}, 0x1, 0x0, 0x0, 0x804}, 0x24040090) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, 0x0, 0xf08, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$,*\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x40040}, 0x40040) stat(&(0x7f0000000240)='./file0\x00', &(0x7f0000000280)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x48, r6, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\''}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}]}, 0x48}, 0x1, 0x0, 0x0, 0x64000800}, 0x20000000) getgroups(0x2, &(0x7f0000000300)=[0x0, r2]) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r7) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r11 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r9) sendmsg$NLBL_MGMT_C_LISTDEF(r10, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000440)={&(0x7f00000003c0)={0x58, r11, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010101}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x58}, 0x1, 0x0, 0x0, 0x800}, 0x404c881) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r7) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r8, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x7c, 0x0, 0xf08, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$,*\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x40040}, 0x40040) (async) stat(&(0x7f0000000240)='./file0\x00', &(0x7f0000000280)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000580)={&(0x7f0000000500)={0x48, r6, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '\''}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}]}, 0x48}, 0x1, 0x0, 0x0, 0x64000800}, 0x20000000) (async) getgroups(0x2, &(0x7f0000000300)=[0x0, r2]) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r7) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r9) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r10, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000440)={&(0x7f00000003c0)={0x58, r11, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010101}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x58}, 0x1, 0x0, 0x0, 0x800}, 0x404c881) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r7) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r8, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) (async) 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x1c, r4, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x44800}, 0x4024894) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x24, 0x0, 0x20, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, r5, 0x2, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}]}, 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c230000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x38, r6, 0x400, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}]}, 0x38}, 0x1, 0x0, 0x0, 0x4040004}, 0x0) (async, rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (rerun: 32) 04:57:27 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$802154_dgram(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000040)={0x24, @long={0x3, 0x1}}, 0x14, &(0x7f0000000080)={&(0x7f0000000200)="265b0dc3af2b0b9f87ca9bc27976e8823c44d20a695991b9c5adfb05a83af4c6686eaadff33bbc6331afac756b08fc2e672a5253bf3da68c4d916c3c305e54999c8aeacf4b333d20ce6e6557813e2077bd060abe73270bd3b9bc0c91b72e4a4fcfa7305414448d6e810a8a310b39942d28ffa8b2ab920504404e869d75f5d46ffd5d1196891f843f0a7a12c260", 0x8d}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r1, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) [ 1326.222272] nbd: socks must be embedded in a SOCK_ITEM attr [ 1326.238587] nbd: must specify a size in bytes for the device [ 1326.256866] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVE(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r6, 0x800, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x4}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}]}, 0x38}, 0x1, 0x0, 0x0, 0x80}, 0x50) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVE(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x38, r6, 0x800, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x4}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}]}, 0x38}, 0x1, 0x0, 0x0, 0x80}, 0x50) (async) 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) (rerun: 32) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x1c, r4, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x44800}, 0x4024894) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="2c0000001c87cad180c8691a1981ecacdad934f1e03eb078af1cacbd1d1e77494465654d980c8fc000db35d71a834fbfaf479856b2a58dd23256fdf47886af7500595fe4f3e8317356113ff2f1ef3859b56b4439041b", @ANYRES16=r4, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10081000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x5c, r4, 0xc24, 0x70bd27, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x25}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x39}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}]}, 0x5c}, 0x1, 0x0, 0x0, 0x804}, 0x24040090) (async, rerun: 64) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x24, 0x0, 0x20, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x24}, 0x1, 0x0, 0x0, 0x40000}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000002c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x1c, r5, 0x2, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}]}, 0x1c}, 0x1, 0x0, 0x0, 0x80}, 0x800) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c230000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x38, r6, 0x400, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}]}, 0x38}, 0x1, 0x0, 0x0, 0x4040004}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) 04:57:27 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$802154_dgram(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000040)={0x24, @long={0x3, 0x1}}, 0x14, &(0x7f0000000080)={&(0x7f0000000200)="265b0dc3af2b0b9f87ca9bc27976e8823c44d20a695991b9c5adfb05a83af4c6686eaadff33bbc6331afac756b08fc2e672a5253bf3da68c4d916c3c305e54999c8aeacf4b333d20ce6e6557813e2077bd060abe73270bd3b9bc0c91b72e4a4fcfa7305414448d6e810a8a310b39942d28ffa8b2ab920504404e869d75f5d46ffd5d1196891f843f0a7a12c260", 0x8d}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r1, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$802154_dgram(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000040)={0x24, @long={0x3, 0x1}}, 0x14, &(0x7f0000000080)={&(0x7f0000000200)="265b0dc3af2b0b9f87ca9bc27976e8823c44d20a695991b9c5adfb05a83af4c6686eaadff33bbc6331afac756b08fc2e672a5253bf3da68c4d916c3c305e54999c8aeacf4b333d20ce6e6557813e2077bd060abe73270bd3b9bc0c91b72e4a4fcfa7305414448d6e810a8a310b39942d28ffa8b2ab920504404e869d75f5d46ffd5d1196891f843f0a7a12c260", 0x8d}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r1, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) [ 1326.362726] nbd: must specify at least one socket [ 1326.370960] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x1c, r4, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x44800}, 0x4024894) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) 04:57:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:27 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$802154_dgram(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000040)={0x24, @long={0x3, 0x1}}, 0x14, &(0x7f0000000080)={&(0x7f0000000200)="265b0dc3af2b0b9f87ca9bc27976e8823c44d20a695991b9c5adfb05a83af4c6686eaadff33bbc6331afac756b08fc2e672a5253bf3da68c4d916c3c305e54999c8aeacf4b333d20ce6e6557813e2077bd060abe73270bd3b9bc0c91b72e4a4fcfa7305414448d6e810a8a310b39942d28ffa8b2ab920504404e869d75f5d46ffd5d1196891f843f0a7a12c260", 0x8d}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) (async, rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r1, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r4, 0x401, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x2080}, 0x20008841) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x1c, r2, 0x2, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4800}, 0x4000000) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000000c0)={0x1c, r7, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x240448d0}, 0x4000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)={0x48, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffd}, @NBD_ATTR_SOCKETS={0x4}]}, 0x48}}, 0x0) 04:57:27 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f00000003c0)=ANY=[@ANYBLOB="2c0000001c87cad180c8691a1981ecacdad934f1e03eb078af1cacbd1d1e77494465654d980c8fc000db35d71a834fbfaf479856b2a58dd23256fdf47886af7500595fe4f3e8317356113ff2f1ef3859b56b4439041b", @ANYRES16=r4, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10081000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x5c, r4, 0xc24, 0x70bd27, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x25}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x39}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}]}, 0x5c}, 0x1, 0x0, 0x0, 0x804}, 0x24040090) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) 04:57:27 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) [ 1326.523079] nbd: couldn't find a device at index 3 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r4, 0x401, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x2080}, 0x20008841) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x1c, r2, 0x2, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4800}, 0x4000000) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000000c0)={0x1c, r7, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x240448d0}, 0x4000000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)={0x48, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffd}, @NBD_ATTR_SOCKETS={0x4}]}, 0x48}}, 0x0) 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffff675a}]}, 0x2c}}, 0x800) 04:57:27 executing program 2: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x80000, 0x8100) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r0, 0xc0984124, &(0x7f0000000180)) 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$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r4, 0x401, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x2080}, 0x20008841) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x1c, r2, 0x2, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4800}, 0x4000000) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000000c0)={0x1c, r7, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x240448d0}, 0x4000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)={0x48, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffd}, @NBD_ATTR_SOCKETS={0x4}]}, 0x48}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x30, r4, 0x401, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x2080}, 0x20008841) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x1c, r2, 0x2, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4800}, 0x4000000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000000c0)={0x1c, r7, 0x20, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x240448d0}, 0x4000000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)={0x48, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffd}, @NBD_ATTR_SOCKETS={0x4}]}, 0x48}}, 0x0) (async) 04:57:27 executing program 5: userfaultfd(0x1) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$nbd(0x0, r3) r5 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r5, 0x114, 0x1, 0x0, 0x0) r6 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r6, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES64=r6, @ANYRES32=r0, @ANYRES32=r5, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:27 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000280)={0xfffffffffffffd99, r3, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\n'}, @NLBL_MGMT_A_PROTOCOL={0x0, 0x2, 0x7}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}, @NLBL_MGMT_A_PROTOCOL={0x0, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x0, 0x6, @loopback}, @NLBL_MGMT_A_DOMAIN={0x0, 0x1, 'NLBL_MGMT\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000014}, 0x20008000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffff675a}]}, 0x2c}}, 0x800) 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) [ 1326.639352] nbd: couldn't find a device at index 3 [ 1326.649664] nbd: couldn't find a device at index 3 [ 1326.667376] nbd: must specify at least one socket 04:57:27 executing program 2: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x80000, 0x8100) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r0, 0xc0984124, &(0x7f0000000180)) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:27 executing program 5: userfaultfd(0x1) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$nbd(0x0, r3) r5 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r5, 0x114, 0x1, 0x0, 0x0) r6 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r6, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES64=r6, @ANYRES32=r0, @ANYRES32=r5, @ANYBLOB="0c0002"], 0x3c}}, 0x0) userfaultfd(0x1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_genetlink_get_family_id$nbd(0x0, r3) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r5, 0x114, 0x1, 0x0, 0x0) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r6, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES64=r6, @ANYRES32=r0, @ANYRES32=r5, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffff675a}]}, 0x2c}}, 0x800) 04:57:27 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000280)={0xfffffffffffffd99, r3, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\n'}, @NLBL_MGMT_A_PROTOCOL={0x0, 0x2, 0x7}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}, @NLBL_MGMT_A_PROTOCOL={0x0, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x0, 0x6, @loopback}, @NLBL_MGMT_A_DOMAIN={0x0, 0x1, 'NLBL_MGMT\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000014}, 0x20008000) (async, rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (rerun: 64) 04:57:27 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)=ANY=[@ANYBLOB='P\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="bcf72dbd7000ffdbdf250600000014000600fe8800000000000000000000000001010800040046cd000008000c000000000008000800ac1414bb06000b00060000000800040001000000"], 0x50}, 0x1, 0x0, 0x0, 0x8004}, 0x4000800) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1326.755848] nbd: must specify at least one socket [ 1326.766574] nbd: couldn't find a device at index 3 [ 1326.784622] nbd: couldn't find a device at index 3 04:57:27 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000004c0)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x8c, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3e}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '!%/.\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '[^]\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x11) 04:57:27 executing program 5: userfaultfd(0x1) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) r4 = syz_genetlink_get_family_id$nbd(0x0, r3) (async) r5 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r5, 0x114, 0x1, 0x0, 0x0) (async) r6 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r6, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES64=r6, @ANYRES32=r0, @ANYRES32=r5, @ANYBLOB="0c0002"], 0x3c}}, 0x0) [ 1326.829318] nbd: must specify at least one socket 04:57:27 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c000500c00000000000000004000780"], 0x24}}, 0x0) 04:57:28 executing program 2: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x80000, 0x8100) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r0, 0xc0984124, &(0x7f0000000180)) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:28 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000004c0)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x8c, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3e}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '!%/.\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '[^]\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x11) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000004c0)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x8c, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3e}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '!%/.\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '[^]\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x11) (async) 04:57:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000000180)=[@in={0x2, 0x4e24, @multicast2}, @in6={0xa, 0x4e24, 0x0, @local, 0xfffffffd}, @in6={0xa, 0x4e22, 0x5, @ipv4={'\x00', '\xff\xff', @remote}, 0x7}, @in={0x2, 0x4e23, @multicast2}], 0x58) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(r3, 0xc01064bd, &(0x7f00000000c0)={&(0x7f0000000080)="170c7f3c61", 0x5}) 04:57:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)=ANY=[@ANYBLOB='P\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="bcf72dbd7000ffdbdf250600000014000600fe8800000000000000000000000001010800040046cd000008000c000000000008000800ac1414bb06000b00060000000800040001000000"], 0x50}, 0x1, 0x0, 0x0, 0x8004}, 0x4000800) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), 0xffffffffffffffff) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (rerun: 32) 04:57:28 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r1 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r1, 0x114, 0x1, 0x0, 0x0) r2 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 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$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f00000000c0)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0x6f, &(0x7f0000000340)={&(0x7f00000005c0)=ANY=[@ANYBLOB="0000001004b9b01b3b2026070000000000000006278fabe3e231cc57a730eed29e69f72bceb7d036c2867b991a00000000fabad7275c02f49be8718da0e2a42b1fbe22c57d208beeaa9441161bc0ba395c0221ada43746999e9375e38c44ec22e62d5578985d0dd9c7f0c480a84d1e767bbac566ed7e632428e20ea7f15cfb178c39bb94890147b5b5746ccec816f827625cf1adc00de3613ffd3289ecf78487f4d96030bf396bd6d59546f33f5abaa8ab18ebbcc1f855e05d3800", @ANYRES16=r5, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}, 0x1, 0x0, 0x0, 0x8850}, 0x0) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180), 0xc, &(0x7f0000000200)={&(0x7f0000000500)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="08002cbd700006dcdf25070000000100000014000680fcf7ffffff0008000700ac1414bb080008009c00000119252603f31ecad4566b88d38e87088a539f7207000000e277a58d54ab1700f0ffffffffffffaae64a4e17562952046a60c470cc22896a04026a0c853700cea411ca9aef5b000000000000000000005479ca5dadede068a721ef04f0"], 0x40}, 0x1, 0x0, 0x0, 0x24004080}, 0x20) r6 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r6, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f00000005c0)=ANY=[], 0x30}, 0x1, 0x0, 0x0, 0x2000c000}, 0x4044084) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r7) 04:57:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000000180)=[@in={0x2, 0x4e24, @multicast2}, @in6={0xa, 0x4e24, 0x0, @local, 0xfffffffd}, @in6={0xa, 0x4e22, 0x5, @ipv4={'\x00', '\xff\xff', @remote}, 0x7}, @in={0x2, 0x4e23, @multicast2}], 0x58) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(r3, 0xc01064bd, &(0x7f00000000c0)={&(0x7f0000000080)="170c7f3c61", 0x5}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) (async) setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000000180)=[@in={0x2, 0x4e24, @multicast2}, @in6={0xa, 0x4e24, 0x0, @local, 0xfffffffd}, @in6={0xa, 0x4e22, 0x5, @ipv4={'\x00', '\xff\xff', @remote}, 0x7}, @in={0x2, 0x4e23, @multicast2}], 0x58) (async) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(r3, 0xc01064bd, &(0x7f00000000c0)={&(0x7f0000000080)="170c7f3c61", 0x5}) (async) 04:57:28 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c000500c00000000000000004000780"], 0x24}}, 0x0) [ 1327.008090] nbd: must specify a size in bytes for the device [ 1327.035817] nbd: nbd0 already in use [ 1327.139344] nbd: nbd0 already in use [ 1327.286509] nbd: nbd0 already in use [ 1327.417098] nbd: nbd0 already in use 04:57:28 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000280)={0xfffffffffffffd99, r3, 0x100, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\n'}, @NLBL_MGMT_A_PROTOCOL={0x0, 0x2, 0x7}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}, @NLBL_MGMT_A_PROTOCOL={0x0, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x0, 0x6, @loopback}, @NLBL_MGMT_A_DOMAIN={0x0, 0x1, 'NLBL_MGMT\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x24000014}, 0x20008000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:28 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000004c0)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x8c, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3e}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '!%/.\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '[^]\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x11) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000004c0)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x8c, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3e}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1}, @NLBL_MGMT_A_DOMAIN={0x9, 0x1, '!%/.\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '[^]\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x11) (async) 04:57:28 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c000500c00000000000000004000780"], 0x24}}, 0x0) 04:57:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000000180)=[@in={0x2, 0x4e24, @multicast2}, @in6={0xa, 0x4e24, 0x0, @local, 0xfffffffd}, @in6={0xa, 0x4e22, 0x5, @ipv4={'\x00', '\xff\xff', @remote}, 0x7}, @in={0x2, 0x4e23, @multicast2}], 0x58) (async) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(r3, 0xc01064bd, &(0x7f00000000c0)={&(0x7f0000000080)="170c7f3c61", 0x5}) 04:57:28 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r1 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r1, 0x114, 0x1, 0x0, 0x0) r2 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f00000000c0)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0x6f, &(0x7f0000000340)={&(0x7f00000005c0)=ANY=[@ANYBLOB="0000001004b9b01b3b2026070000000000000006278fabe3e231cc57a730eed29e69f72bceb7d036c2867b991a00000000fabad7275c02f49be8718da0e2a42b1fbe22c57d208beeaa9441161bc0ba395c0221ada43746999e9375e38c44ec22e62d5578985d0dd9c7f0c480a84d1e767bbac566ed7e632428e20ea7f15cfb178c39bb94890147b5b5746ccec816f827625cf1adc00de3613ffd3289ecf78487f4d96030bf396bd6d59546f33f5abaa8ab18ebbcc1f855e05d3800", @ANYRES16=r5, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}, 0x1, 0x0, 0x0, 0x8850}, 0x0) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180), 0xc, &(0x7f0000000200)={&(0x7f0000000500)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="08002cbd700006dcdf25070000000100000014000680fcf7ffffff0008000700ac1414bb080008009c00000119252603f31ecad4566b88d38e87088a539f7207000000e277a58d54ab1700f0ffffffffffffaae64a4e17562952046a60c470cc22896a04026a0c853700cea411ca9aef5b000000000000000000005479ca5dadede068a721ef04f0"], 0x40}, 0x1, 0x0, 0x0, 0x24004080}, 0x20) r6 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r6, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f00000005c0)=ANY=[], 0x30}, 0x1, 0x0, 0x0, 0x2000c000}, 0x4044084) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r7) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r1, 0x114, 0x1, 0x0, 0x0) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f00000000c0)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0x6f, &(0x7f0000000340)={&(0x7f00000005c0)=ANY=[@ANYBLOB="0000001004b9b01b3b2026070000000000000006278fabe3e231cc57a730eed29e69f72bceb7d036c2867b991a00000000fabad7275c02f49be8718da0e2a42b1fbe22c57d208beeaa9441161bc0ba395c0221ada43746999e9375e38c44ec22e62d5578985d0dd9c7f0c480a84d1e767bbac566ed7e632428e20ea7f15cfb178c39bb94890147b5b5746ccec816f827625cf1adc00de3613ffd3289ecf78487f4d96030bf396bd6d59546f33f5abaa8ab18ebbcc1f855e05d3800", @ANYRES16=r5, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}, 0x1, 0x0, 0x0, 0x8850}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180), 0xc, &(0x7f0000000200)={&(0x7f0000000500)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="08002cbd700006dcdf25070000000100000014000680fcf7ffffff0008000700ac1414bb080008009c00000119252603f31ecad4566b88d38e87088a539f7207000000e277a58d54ab1700f0ffffffffffffaae64a4e17562952046a60c470cc22896a04026a0c853700cea411ca9aef5b000000000000000000005479ca5dadede068a721ef04f0"], 0x40}, 0x1, 0x0, 0x0, 0x24004080}, 0x20) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r6, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f00000005c0)=ANY=[], 0x30}, 0x1, 0x0, 0x0, 0x2000c000}, 0x4044084) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r7) (async) 04:57:28 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000002c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="f0496426b68c2b9625b719fa96adc71f53bcf73b202bbe7c6b701533285a4e1e813c05c6128fd3fc98a6e86b5b84feff705d530f89b5dd5169797033b124bd4bfdfd5297e57cc118aae80abbad9ae6bc487925ceed6a68384cd084e81b26bd6eb391a426854b10c519748bc34e7d6835b4edd7ac30a93a134298e671816ebc7a02a754da0354b104e145ae4299c9ddfd40b382a086ab29adc18c5009a5e926a49be50d7730f372ff3e52a7716db51f9f82e3fc357fc67e55", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) r3 = gettid() r4 = gettid() syz_open_procfs$namespace(r4, 0x0) syz_open_procfs$namespace(r4, &(0x7f0000000180)='ns/time\x00') syz_open_procfs$namespace(r3, 0x0) r5 = perf_event_open(&(0x7f0000000200)={0x1, 0x80, 0x1, 0x9, 0x80, 0x9, 0x0, 0x0, 0x0, 0x8, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x80000000, 0x2, @perf_config_ext={0x3f, 0x4}, 0x2046, 0x2, 0x4, 0x0, 0x7, 0x6, 0x5, 0x0, 0x20dc, 0x0, 0x6}, 0x0, 0x8, 0xffffffffffffffff, 0x8) perf_event_open(&(0x7f0000000080)={0x4, 0x80, 0x4, 0x6, 0x6, 0x0, 0x0, 0x1ff, 0x20010, 0xf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x6, 0x2, @perf_bp={&(0x7f0000000000), 0x7}, 0x10020, 0x800, 0x5, 0x9, 0xffff, 0x5, 0x400, 0x0, 0x7ff, 0x0, 0xff}, r3, 0x6, r5, 0x9) 04:57:28 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:28 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f00000001c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f0000000240)={0x40, r3, 0x0, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000006) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:28 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)=ANY=[@ANYBLOB='P\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="bcf72dbd7000ffdbdf250600000014000600fe8800000000000000000000000001010800040046cd000008000c000000000008000800ac1414bb06000b00060000000800040001000000"], 0x50}, 0x1, 0x0, 0x0, 0x8004}, 0x4000800) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)=ANY=[@ANYBLOB='P\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="bcf72dbd7000ffdbdf250600000014000600fe8800000000000000000000000001010800040046cd000008000c000000000008000800ac1414bb06000b00060000000800040001000000"], 0x50}, 0x1, 0x0, 0x0, 0x8004}, 0x4000800) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:28 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x2c, r2, 0x400, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24004031}, 0x22008005) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r3, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:28 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r1 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r1, 0x114, 0x1, 0x0, 0x0) (async) r2 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) (async) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f00000000c0)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0x6f, &(0x7f0000000340)={&(0x7f00000005c0)=ANY=[@ANYBLOB="0000001004b9b01b3b2026070000000000000006278fabe3e231cc57a730eed29e69f72bceb7d036c2867b991a00000000fabad7275c02f49be8718da0e2a42b1fbe22c57d208beeaa9441161bc0ba395c0221ada43746999e9375e38c44ec22e62d5578985d0dd9c7f0c480a84d1e767bbac566ed7e632428e20ea7f15cfb178c39bb94890147b5b5746ccec816f827625cf1adc00de3613ffd3289ecf78487f4d96030bf396bd6d59546f33f5abaa8ab18ebbcc1f855e05d3800", @ANYRES16=r5, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}, 0x1, 0x0, 0x0, 0x8850}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000180), 0xc, &(0x7f0000000200)={&(0x7f0000000500)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="08002cbd700006dcdf25070000000100000014000680fcf7ffffff0008000700ac1414bb080008009c00000119252603f31ecad4566b88d38e87088a539f7207000000e277a58d54ab1700f0ffffffffffffaae64a4e17562952046a60c470cc22896a04026a0c853700cea411ca9aef5b000000000000000000005479ca5dadede068a721ef04f0"], 0x40}, 0x1, 0x0, 0x0, 0x24004080}, 0x20) r6 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r6, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f00000005c0)=ANY=[], 0x30}, 0x1, 0x0, 0x0, 0x2000c000}, 0x4044084) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r7) 04:57:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000002c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="f0496426b68c2b9625b719fa96adc71f53bcf73b202bbe7c6b701533285a4e1e813c05c6128fd3fc98a6e86b5b84feff705d530f89b5dd5169797033b124bd4bfdfd5297e57cc118aae80abbad9ae6bc487925ceed6a68384cd084e81b26bd6eb391a426854b10c519748bc34e7d6835b4edd7ac30a93a134298e671816ebc7a02a754da0354b104e145ae4299c9ddfd40b382a086ab29adc18c5009a5e926a49be50d7730f372ff3e52a7716db51f9f82e3fc357fc67e55", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (async) r3 = gettid() r4 = gettid() syz_open_procfs$namespace(r4, 0x0) (async) syz_open_procfs$namespace(r4, &(0x7f0000000180)='ns/time\x00') (async) syz_open_procfs$namespace(r3, 0x0) (async) r5 = perf_event_open(&(0x7f0000000200)={0x1, 0x80, 0x1, 0x9, 0x80, 0x9, 0x0, 0x0, 0x0, 0x8, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x80000000, 0x2, @perf_config_ext={0x3f, 0x4}, 0x2046, 0x2, 0x4, 0x0, 0x7, 0x6, 0x5, 0x0, 0x20dc, 0x0, 0x6}, 0x0, 0x8, 0xffffffffffffffff, 0x8) perf_event_open(&(0x7f0000000080)={0x4, 0x80, 0x4, 0x6, 0x6, 0x0, 0x0, 0x1ff, 0x20010, 0xf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x6, 0x2, @perf_bp={&(0x7f0000000000), 0x7}, 0x10020, 0x800, 0x5, 0x9, 0xffff, 0x5, 0x400, 0x0, 0x7ff, 0x0, 0xff}, r3, 0x6, r5, 0x9) 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f00000001c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f0000000240)={0x40, r3, 0x0, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000006) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f00000001c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f0000000240)={0x40, r3, 0x0, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000006) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) [ 1327.850231] nbd: must specify a size in bytes for the device [ 1327.887059] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:29 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x2c, r2, 0x400, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24004031}, 0x22008005) (async, rerun: 64) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r3, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1327.912084] nbd: couldn't find a device at index 3 04:57:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) gettid() sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="b348f05a", @ANYRES16=r1, @ANYBLOB="210627bd7000000000000100000013b4286278fe090faf8902dea4c6d929ce2b702c13a17fdad44136b3342ce8ea1b3ce6921c1217f980760860e47759dc9bcafaa608d89420e4b7be7af4d7a37914b0930891a9e716b65b7307838744b4667d91c3bc603327d2bcdbaec526fb5781dde2f389770bc89aa5c031a7"], 0x14}, 0x1, 0x0, 0x0, 0x5000}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0xc4e02, 0x0) setsockopt$WPAN_WANTACK(r2, 0x0, 0x0, &(0x7f00000000c0)=0x1, 0x4) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) 04:57:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000002c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="f0496426b68c2b9625b719fa96adc71f53bcf73b202bbe7c6b701533285a4e1e813c05c6128fd3fc98a6e86b5b84feff705d530f89b5dd5169797033b124bd4bfdfd5297e57cc118aae80abbad9ae6bc487925ceed6a68384cd084e81b26bd6eb391a426854b10c519748bc34e7d6835b4edd7ac30a93a134298e671816ebc7a02a754da0354b104e145ae4299c9ddfd40b382a086ab29adc18c5009a5e926a49be50d7730f372ff3e52a7716db51f9f82e3fc357fc67e55", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) r3 = gettid() r4 = gettid() syz_open_procfs$namespace(r4, 0x0) syz_open_procfs$namespace(r4, &(0x7f0000000180)='ns/time\x00') syz_open_procfs$namespace(r3, 0x0) r5 = perf_event_open(&(0x7f0000000200)={0x1, 0x80, 0x1, 0x9, 0x80, 0x9, 0x0, 0x0, 0x0, 0x8, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x80000000, 0x2, @perf_config_ext={0x3f, 0x4}, 0x2046, 0x2, 0x4, 0x0, 0x7, 0x6, 0x5, 0x0, 0x20dc, 0x0, 0x6}, 0x0, 0x8, 0xffffffffffffffff, 0x8) perf_event_open(&(0x7f0000000080)={0x4, 0x80, 0x4, 0x6, 0x6, 0x0, 0x0, 0x1ff, 0x20010, 0xf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x6, 0x2, @perf_bp={&(0x7f0000000000), 0x7}, 0x10020, 0x800, 0x5, 0x9, 0xffff, 0x5, 0x400, 0x0, 0x7ff, 0x0, 0xff}, r3, 0x6, r5, 0x9) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000002c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="f0496426b68c2b9625b719fa96adc71f53bcf73b202bbe7c6b701533285a4e1e813c05c6128fd3fc98a6e86b5b84feff705d530f89b5dd5169797033b124bd4bfdfd5297e57cc118aae80abbad9ae6bc487925ceed6a68384cd084e81b26bd6eb391a426854b10c519748bc34e7d6835b4edd7ac30a93a134298e671816ebc7a02a754da0354b104e145ae4299c9ddfd40b382a086ab29adc18c5009a5e926a49be50d7730f372ff3e52a7716db51f9f82e3fc357fc67e55", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (async) gettid() (async) gettid() (async) syz_open_procfs$namespace(r4, 0x0) (async) syz_open_procfs$namespace(r4, &(0x7f0000000180)='ns/time\x00') (async) syz_open_procfs$namespace(r3, 0x0) (async) perf_event_open(&(0x7f0000000200)={0x1, 0x80, 0x1, 0x9, 0x80, 0x9, 0x0, 0x0, 0x0, 0x8, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x80000000, 0x2, @perf_config_ext={0x3f, 0x4}, 0x2046, 0x2, 0x4, 0x0, 0x7, 0x6, 0x5, 0x0, 0x20dc, 0x0, 0x6}, 0x0, 0x8, 0xffffffffffffffff, 0x8) (async) perf_event_open(&(0x7f0000000080)={0x4, 0x80, 0x4, 0x6, 0x6, 0x0, 0x0, 0x1ff, 0x20010, 0xf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x3, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x6, 0x2, @perf_bp={&(0x7f0000000000), 0x7}, 0x10020, 0x800, 0x5, 0x9, 0xffff, 0x5, 0x400, 0x0, 0x7ff, 0x0, 0xff}, r3, 0x6, r5, 0x9) (async) [ 1327.969088] nbd: must specify a size in bytes for the device [ 1327.985866] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x60, 0x0, 0x0, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x3c}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x1f}}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '//!.)/@\x00'}]}, 0x60}, 0x1, 0x0, 0x0, 0x24040000}, 0x880) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB='\b\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="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"], 0x54}, 0x1, 0x0, 0x0, 0x10}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) ioctl$BINDER_WRITE_READ(0xffffffffffffffff, 0xc0306201, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f00000001c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f0000000240)={0x40, r3, 0x0, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000006) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) gettid() (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="b348f05a", @ANYRES16=r1, @ANYBLOB="210627bd7000000000000100000013b4286278fe090faf8902dea4c6d929ce2b702c13a17fdad44136b3342ce8ea1b3ce6921c1217f980760860e47759dc9bcafaa608d89420e4b7be7af4d7a37914b0930891a9e716b65b7307838744b4667d91c3bc603327d2bcdbaec526fb5781dde2f389770bc89aa5c031a7"], 0x14}, 0x1, 0x0, 0x0, 0x5000}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0xc4e02, 0x0) setsockopt$WPAN_WANTACK(r2, 0x0, 0x0, &(0x7f00000000c0)=0x1, 0x4) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) 04:57:29 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000140)={&(0x7f0000000100)={0x2c, r2, 0x400, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x2c}, 0x1, 0x0, 0x0, 0x24004031}, 0x22008005) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r3, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1328.080825] nbd: couldn't find a device at index 3 [ 1328.096627] nbd: must specify a size in bytes for the device [ 1328.109429] nbd: must specify a size in bytes for the device 04:57:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x60, 0x0, 0x0, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x3c}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x1f}}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '//!.)/@\x00'}]}, 0x60}, 0x1, 0x0, 0x0, 0x24040000}, 0x880) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB='\b\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="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"], 0x54}, 0x1, 0x0, 0x0, 0x10}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) ioctl$BINDER_WRITE_READ(0xffffffffffffffff, 0xc0306201, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r2, 0x400, 0x70bd27, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x29}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x8015}, 0x8800) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x24, 0x0, 0x300, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0xd, 0x1, '*!-:*!#(\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x2400c810}, 0x10001) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) gettid() (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="b348f05a", @ANYRES16=r1, @ANYBLOB="210627bd7000000000000100000013b4286278fe090faf8902dea4c6d929ce2b702c13a17fdad44136b3342ce8ea1b3ce6921c1217f980760860e47759dc9bcafaa608d89420e4b7be7af4d7a37914b0930891a9e716b65b7307838744b4667d91c3bc603327d2bcdbaec526fb5781dde2f389770bc89aa5c031a7"], 0x14}, 0x1, 0x0, 0x0, 0x5000}, 0x0) (async, rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0xc4e02, 0x0) setsockopt$WPAN_WANTACK(r2, 0x0, 0x0, &(0x7f00000000c0)=0x1, 0x4) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) [ 1328.151582] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) (rerun: 64) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r2, 0x400, 0x70bd27, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x29}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x8015}, 0x8800) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) [ 1328.204638] nbd: couldn't find a device at index 3 04:57:29 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) setsockopt$CAN_RAW_ERR_FILTER(r0, 0x65, 0x2, &(0x7f0000000000)=0x9, 0x4) 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$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:29 executing program 3: setsockopt$WPAN_SECURITY_LEVEL(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000)=0x7, 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x152e1f12291ca22f}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x24, r4, 0x800, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, ',\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x20044094}, 0x8000) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x48, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}]}, 0x48}, 0x1, 0x0, 0x0, 0x10a4}, 0x44000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800000008000000"], 0x1c}}, 0x0) 04:57:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x60, 0x0, 0x0, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x3c}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x1f}}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '//!.)/@\x00'}]}, 0x60}, 0x1, 0x0, 0x0, 0x24040000}, 0x880) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB='\b\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="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"], 0x54}, 0x1, 0x0, 0x0, 0x10}, 0x0) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) ioctl$BINDER_WRITE_READ(0xffffffffffffffff, 0xc0306201, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1328.230639] nbd: must specify a size in bytes for the device [ 1328.256732] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:29 executing program 3: setsockopt$WPAN_SECURITY_LEVEL(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000)=0x7, 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x152e1f12291ca22f}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x24, r4, 0x800, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, ',\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x20044094}, 0x8000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x48, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}]}, 0x48}, 0x1, 0x0, 0x0, 0x10a4}, 0x44000) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800000008000000"], 0x1c}}, 0x0) 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x24, 0x0, 0x300, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0xd, 0x1, '*!-:*!#(\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x2400c810}, 0x10001) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x24, 0x0, 0x300, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0xd, 0x1, '*!-:*!#(\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x2400c810}, 0x10001) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f0000000000)={&(0x7f0000000180)="056ffde596f3f16a2bfb6cd8500fb5eb5ecbf34e7e4ddcff03d321643b05b4596daf5a2c837748536e26c24992848510fde9ffe587806f0e35b8322501d59513d14bffef9df52a76c053b683ee6579c4f8ec2c5eb8456cd93bba05834128ac2c383057b3cdaf01aa87a369cf1dc895b6f4651ab1b58c176db3e5c8dcc278771c34bdb414e5074022fdbe42d142121d3eb450aed54fb838c8428ef7242b734395a473aa7de7ec297ed90bfec8ca2e8d0f1affe7977c69c04e3911c642e9796a28f5ed614e8dde05", 0xc7}) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x8, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1328.276318] nbd: must specify a device to reconfigure 04:57:29 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async) setsockopt$CAN_RAW_ERR_FILTER(r0, 0x65, 0x2, &(0x7f0000000000)=0x9, 0x4) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x50, 0x0, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '@\x00'}]}, 0x50}}, 0x44) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r4, 0x200, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x24}, 0x1, 0x0, 0x0, 0x8000}, 0x4004000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000c00060001000000000000000c0002000000000000000000040007800000000000000000"], 0x30}}, 0x0) 04:57:29 executing program 3: setsockopt$WPAN_SECURITY_LEVEL(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000)=0x7, 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r0) (rerun: 32) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x152e1f12291ca22f}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x24, r4, 0x800, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, ',\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x20044094}, 0x8000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x48, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}]}, 0x48}, 0x1, 0x0, 0x0, 0x10a4}, 0x44000) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800000008000000"], 0x1c}}, 0x0) [ 1328.324124] nbd: must specify a size in bytes for the device [ 1328.345407] nbd: must specify a device to reconfigure [ 1328.351923] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x24, 0x0, 0x300, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0xd, 0x1, '*!-:*!#(\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x2400c810}, 0x10001) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f0000000000)={&(0x7f0000000180)="056ffde596f3f16a2bfb6cd8500fb5eb5ecbf34e7e4ddcff03d321643b05b4596daf5a2c837748536e26c24992848510fde9ffe587806f0e35b8322501d59513d14bffef9df52a76c053b683ee6579c4f8ec2c5eb8456cd93bba05834128ac2c383057b3cdaf01aa87a369cf1dc895b6f4651ab1b58c176db3e5c8dcc278771c34bdb414e5074022fdbe42d142121d3eb450aed54fb838c8428ef7242b734395a473aa7de7ec297ed90bfec8ca2e8d0f1affe7977c69c04e3911c642e9796a28f5ed614e8dde05", 0xc7}) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x8, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f0000000000)={&(0x7f0000000180)="056ffde596f3f16a2bfb6cd8500fb5eb5ecbf34e7e4ddcff03d321643b05b4596daf5a2c837748536e26c24992848510fde9ffe587806f0e35b8322501d59513d14bffef9df52a76c053b683ee6579c4f8ec2c5eb8456cd93bba05834128ac2c383057b3cdaf01aa87a369cf1dc895b6f4651ab1b58c176db3e5c8dcc278771c34bdb414e5074022fdbe42d142121d3eb450aed54fb838c8428ef7242b734395a473aa7de7ec297ed90bfec8ca2e8d0f1affe7977c69c04e3911c642e9796a28f5ed614e8dde05", 0xc7}) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x8, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r2, 0x400, 0x70bd27, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x29}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x8015}, 0x8800) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:29 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) setsockopt$CAN_RAW_ERR_FILTER(r0, 0x65, 0x2, &(0x7f0000000000)=0x9, 0x4) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) [ 1328.375303] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) ioctl$SNDRV_PCM_IOCTL_LINK(0xffffffffffffffff, 0x40044160, &(0x7f0000000000)=0x6) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) sendmsg$NLBL_MGMT_C_REMOVE(r7, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x1c, r6, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x6c, r6, 0x2, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1a}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000011) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000180", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) [ 1328.452769] nbd: must specify a device to reconfigure [ 1328.465912] nbd: must specify at least one socket 04:57:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="53fc513db4c8593ac9ef5e8f3791d00089f852ae46b9ef9f50fba6e45634244a05e3e62f1a049242840bcdd0baad6e6b9059b5b23c770d6ecfce0e03ba5927111e25acddaff3f1477e5bcfb2", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB="380000d8", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x1c, 0x0, 0x400, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x24048001) 04:57:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x50, 0x0, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '@\x00'}]}, 0x50}}, 0x44) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r4, 0x200, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x24}, 0x1, 0x0, 0x0, 0x8000}, 0x4004000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000c00060001000000000000000c0002000000000000000000040007800000000000000000"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x50, 0x0, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '@\x00'}]}, 0x50}}, 0x44) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r4, 0x200, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x24}, 0x1, 0x0, 0x0, 0x8000}, 0x4004000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000c00060001000000000000000c0002000000000000000000040007800000000000000000"], 0x30}}, 0x0) (async) 04:57:29 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f0000000000)={&(0x7f0000000180)="056ffde596f3f16a2bfb6cd8500fb5eb5ecbf34e7e4ddcff03d321643b05b4596daf5a2c837748536e26c24992848510fde9ffe587806f0e35b8322501d59513d14bffef9df52a76c053b683ee6579c4f8ec2c5eb8456cd93bba05834128ac2c383057b3cdaf01aa87a369cf1dc895b6f4651ab1b58c176db3e5c8dcc278771c34bdb414e5074022fdbe42d142121d3eb450aed54fb838c8428ef7242b734395a473aa7de7ec297ed90bfec8ca2e8d0f1affe7977c69c04e3911c642e9796a28f5ed614e8dde05", 0xc7}) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x8, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) ioctl$SNDRV_PCM_IOCTL_LINK(0xffffffffffffffff, 0x40044160, &(0x7f0000000000)=0x6) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) sendmsg$NLBL_MGMT_C_REMOVE(r7, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x1c, r6, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) (async, rerun: 32) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x6c, r6, 0x2, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1a}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000011) (async, rerun: 32) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r1) (async, rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000180", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (rerun: 64) 04:57:29 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000003c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x7c, 0x0, 0x1, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3c}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000000}, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, r5, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20040801}, 0x2004c884) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="53fc513db4c8593ac9ef5e8f3791d00089f852ae46b9ef9f50fba6e45634244a05e3e62f1a049242840bcdd0baad6e6b9059b5b23c770d6ecfce0e03ba5927111e25acddaff3f1477e5bcfb2", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="53fc513db4c8593ac9ef5e8f3791d00089f852ae46b9ef9f50fba6e45634244a05e3e62f1a049242840bcdd0baad6e6b9059b5b23c770d6ecfce0e03ba5927111e25acddaff3f1477e5bcfb2", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) (async) 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB="380000d8", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x1c, 0x0, 0x400, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x24048001) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB="380000d8", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x1c, 0x0, 0x400, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x24048001) (async) 04:57:29 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000003c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x7c, 0x0, 0x1, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3c}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000000}, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, r5, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20040801}, 0x2004c884) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000003c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x7c, 0x0, 0x1, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3c}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000000}, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, r5, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20040801}, 0x2004c884) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:29 executing program 4: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000380)=@base={0x1, 0x4af3, 0x7, 0x7fffffff, 0x11, 0xffffffffffffffff, 0x3, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4, 0x4}, 0x48) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000400)=@base={0xa, 0x4, 0x80, 0x8, 0x802, r0, 0x1, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4, 0x5}, 0x48) r2 = bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f00000004c0)=@bpf_ext={0x1c, 0x3, &(0x7f0000000000)=@raw=[@call={0x85, 0x0, 0x0, 0x93}, @btf_id={0x18, 0x2, 0x3, 0x0, 0x1}], &(0x7f00000000c0)='syzkaller\x00', 0x9, 0x0, 0x0, 0x41000, 0x1, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000180)={0x8, 0x1}, 0x8, 0x10, &(0x7f00000001c0)={0x5, 0x1f, 0x3, 0xf4}, 0x10, 0xca63, 0xffffffffffffffff, 0x0, &(0x7f0000000480)=[0x1, 0xffffffffffffffff, 0x1, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x1, 0x1, 0xffffffffffffffff, r0, r1]}, 0x80) bpf$BPF_RAW_TRACEPOINT_OPEN_UNNAMED(0x11, &(0x7f00000002c0)={0x0, r2}, 0x10) setsockopt$inet_sctp6_SCTP_DISABLE_FRAGMENTS(0xffffffffffffffff, 0x84, 0x8, &(0x7f0000000300)=0x40, 0x4) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1328.620669] nbd: couldn't find a device at index 3 [ 1328.637966] nbd: must specify at least one socket 04:57:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="53fc513db4c8593ac9ef5e8f3791d00089f852ae46b9ef9f50fba6e45634244a05e3e62f1a049242840bcdd0baad6e6b9059b5b23c770d6ecfce0e03ba5927111e25acddaff3f1477e5bcfb2", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) 04:57:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x50, 0x0, 0x8, 0x70bd29, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '@\x00'}]}, 0x50}}, 0x44) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r4, 0x200, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x24}, 0x1, 0x0, 0x0, 0x8000}, 0x4004000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000c00060001000000000000000c0002000000000000000000040007800000000000000000"], 0x30}}, 0x0) 04:57:29 executing program 4: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000380)=@base={0x1, 0x4af3, 0x7, 0x7fffffff, 0x11, 0xffffffffffffffff, 0x3, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4, 0x4}, 0x48) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000400)=@base={0xa, 0x4, 0x80, 0x8, 0x802, r0, 0x1, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4, 0x5}, 0x48) r2 = bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f00000004c0)=@bpf_ext={0x1c, 0x3, &(0x7f0000000000)=@raw=[@call={0x85, 0x0, 0x0, 0x93}, @btf_id={0x18, 0x2, 0x3, 0x0, 0x1}], &(0x7f00000000c0)='syzkaller\x00', 0x9, 0x0, 0x0, 0x41000, 0x1, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000180)={0x8, 0x1}, 0x8, 0x10, &(0x7f00000001c0)={0x5, 0x1f, 0x3, 0xf4}, 0x10, 0xca63, 0xffffffffffffffff, 0x0, &(0x7f0000000480)=[0x1, 0xffffffffffffffff, 0x1, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x1, 0x1, 0xffffffffffffffff, r0, r1]}, 0x80) bpf$BPF_RAW_TRACEPOINT_OPEN_UNNAMED(0x11, &(0x7f00000002c0)={0x0, r2}, 0x10) setsockopt$inet_sctp6_SCTP_DISABLE_FRAGMENTS(0xffffffffffffffff, 0x84, 0x8, &(0x7f0000000300)=0x40, 0x4) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) bpf$MAP_CREATE(0x0, &(0x7f0000000380)=@base={0x1, 0x4af3, 0x7, 0x7fffffff, 0x11, 0xffffffffffffffff, 0x3, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4, 0x4}, 0x48) (async) bpf$MAP_CREATE(0x0, &(0x7f0000000400)=@base={0xa, 0x4, 0x80, 0x8, 0x802, r0, 0x1, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4, 0x5}, 0x48) (async) bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f00000004c0)=@bpf_ext={0x1c, 0x3, &(0x7f0000000000)=@raw=[@call={0x85, 0x0, 0x0, 0x93}, @btf_id={0x18, 0x2, 0x3, 0x0, 0x1}], &(0x7f00000000c0)='syzkaller\x00', 0x9, 0x0, 0x0, 0x41000, 0x1, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000180)={0x8, 0x1}, 0x8, 0x10, &(0x7f00000001c0)={0x5, 0x1f, 0x3, 0xf4}, 0x10, 0xca63, 0xffffffffffffffff, 0x0, &(0x7f0000000480)=[0x1, 0xffffffffffffffff, 0x1, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x1, 0x1, 0xffffffffffffffff, r0, r1]}, 0x80) (async) bpf$BPF_RAW_TRACEPOINT_OPEN_UNNAMED(0x11, &(0x7f00000002c0)={0x0, r2}, 0x10) (async) setsockopt$inet_sctp6_SCTP_DISABLE_FRAGMENTS(0xffffffffffffffff, 0x84, 0x8, &(0x7f0000000300)=0x40, 0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x2c, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20004000}, 0x24000840) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x28, r1, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x40) 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB="380000d8", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x1c, 0x0, 0x400, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4}, 0x24048001) [ 1328.759208] nbd: must specify at least one socket 04:57:29 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x48, 0x0, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x11}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000000}, 0x4800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:29 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) ioctl$SNDRV_PCM_IOCTL_LINK(0xffffffffffffffff, 0x40044160, &(0x7f0000000000)=0x6) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) (async) sendmsg$NLBL_MGMT_C_REMOVE(r7, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x1c, r6, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) (async) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x6c, r6, 0x2, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1a}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000011) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000180", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:29 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x2c, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20004000}, 0x24000840) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x28, r1, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x40) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x2c, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20004000}, 0x24000840) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x28, r1, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x40) (async) [ 1328.783823] nbd: couldn't find a device at index 3 04:57:29 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="8791f4d49dd7162b58c4c727f1884e58d0a39e1f688344d2cb4a4fc30e8dffd26f0efe2bc73c306624df23e80b0a975bb64798ef071397226c1d9858f89a3fc8662306a2bb25f6605ace86e906a4451cd477b020f9be103ece86027b4968d84c1ce9dcc9b6486caa6358811f23b5027e47a3d025c703992085c566fb67c13e9c6d08ecedad07217d3ab1c4d77b1a73ec9e48431c11de70e7f5aec9e88928"], 0x3c}}, 0x0) 04:57:29 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000003c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x7c, 0x0, 0x1, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3c}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x20000000}, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async, rerun: 64) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, r5, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20040801}, 0x2004c884) (async, rerun: 64) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r6, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:30 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x48, 0x0, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x11}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000000}, 0x4800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x48, 0x0, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x11}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000000}, 0x4800) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:30 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="8791f4d49dd7162b58c4c727f1884e58d0a39e1f688344d2cb4a4fc30e8dffd26f0efe2bc73c306624df23e80b0a975bb64798ef071397226c1d9858f89a3fc8662306a2bb25f6605ace86e906a4451cd477b020f9be103ece86027b4968d84c1ce9dcc9b6486caa6358811f23b5027e47a3d025c703992085c566fb67c13e9c6d08ecedad07217d3ab1c4d77b1a73ec9e48431c11de70e7f5aec9e88928"], 0x3c}}, 0x0) 04:57:30 executing program 4: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000380)=@base={0x1, 0x4af3, 0x7, 0x7fffffff, 0x11, 0xffffffffffffffff, 0x3, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4, 0x4}, 0x48) r1 = bpf$MAP_CREATE(0x0, &(0x7f0000000400)=@base={0xa, 0x4, 0x80, 0x8, 0x802, r0, 0x1, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x4, 0x5}, 0x48) r2 = bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f00000004c0)=@bpf_ext={0x1c, 0x3, &(0x7f0000000000)=@raw=[@call={0x85, 0x0, 0x0, 0x93}, @btf_id={0x18, 0x2, 0x3, 0x0, 0x1}], &(0x7f00000000c0)='syzkaller\x00', 0x9, 0x0, 0x0, 0x41000, 0x1, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000180)={0x8, 0x1}, 0x8, 0x10, &(0x7f00000001c0)={0x5, 0x1f, 0x3, 0xf4}, 0x10, 0xca63, 0xffffffffffffffff, 0x0, &(0x7f0000000480)=[0x1, 0xffffffffffffffff, 0x1, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x1, 0x1, 0xffffffffffffffff, r0, r1]}, 0x80) bpf$BPF_RAW_TRACEPOINT_OPEN_UNNAMED(0x11, &(0x7f00000002c0)={0x0, r2}, 0x10) (async) setsockopt$inet_sctp6_SCTP_DISABLE_FRAGMENTS(0xffffffffffffffff, 0x84, 0x8, &(0x7f0000000300)=0x40, 0x4) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1328.910669] nbd: couldn't find a device at index 3 04:57:30 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80005}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r3, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x58}, 0x1, 0x0, 0x0, 0x4840}, 0xc0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r4, @ANYBLOB="190100000000000000000300235e5cdd107e96d792bf"], 0x1c}}, 0x0) 04:57:30 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x2c, 0x0, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20004000}, 0x24000840) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x28, r1, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x40) 04:57:30 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x48, 0x0, 0x20, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x11}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}]}, 0x48}, 0x1, 0x0, 0x0, 0x4000000}, 0x4800) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1329.019436] nla_parse: 313 callbacks suppressed [ 1329.019442] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1329.051781] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 04:57:30 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x341400, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x98, r2, 0x400, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3a5}]}, 0x98}, 0x1, 0x0, 0x0, 0x8081}, 0x4008004) 04:57:30 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="8791f4d49dd7162b58c4c727f1884e58d0a39e1f688344d2cb4a4fc30e8dffd26f0efe2bc73c306624df23e80b0a975bb64798ef071397226c1d9858f89a3fc8662306a2bb25f6605ace86e906a4451cd477b020f9be103ece86027b4968d84c1ce9dcc9b6486caa6358811f23b5027e47a3d025c703992085c566fb67c13e9c6d08ecedad07217d3ab1c4d77b1a73ec9e48431c11de70e7f5aec9e88928"], 0x3c}}, 0x0) [ 1329.065800] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 04:57:30 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r0) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000300)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="6100c0aaca6705000000000000000843", @ANYRES16=r3, @ANYBLOB="00022abd7000fbdbdf250100000008000c00020000000800040002000000200001002f7379732f6b65726e656c2f64656275672f73796e632f696e666f00080004000300000006000b001f000000"], 0x54}}, 0x40) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_PROTOCOLS(r7, &(0x7f0000000580)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000540)={&(0x7f0000000500)={0x3c, r3, 0x200, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x1, 0x0}}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000800}, 0x8820) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r5, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x48, r8, 0x8, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xa}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0={0xfc, 0x0, '\x00', 0x1}}]}, 0x48}, 0x1, 0x0, 0x0, 0x84}, 0x8000) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r4, 0x84, 0x7, &(0x7f0000000000)={0x200}, 0x4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000900)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYRESHEX=r8, @ANYRES64=r8, @ANYBLOB="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", @ANYRES32=r6, @ANYBLOB="0c00020000000000000000000800010000000000", @ANYRESDEC=r7, @ANYRES32=r0, @ANYRESDEC=r1, @ANYRESHEX=r7], 0x3c}, 0x1, 0x0, 0x0, 0x4000800}, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0xa081, 0x0) ioctl$VHOST_SET_VRING_KICK(r4, 0x4008af20, &(0x7f00000000c0)={0x1, r9}) 04:57:30 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) ioctl$TUNSETSTEERINGEBPF(0xffffffffffffffff, 0x800454e0, &(0x7f00000002c0)=r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000140), r1) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x14, r2, 0x300, 0x70bd26, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x20008800}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="2aae", @ANYRES16=r4, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000280), 0x2802, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000340)={0xffffffffffffffff}) r10 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r10, 0x82000000) r11 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000380), 0x1, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000004c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0xa4, r4, 0x10, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x38bf}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r0}, {0x8, 0x1, r0}, {0x8, 0x1, r5}, {0x8, 0x1, r0}, {0x8, 0x1, r0}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r0}, {0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r0}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x4000001}, 0x20004001) 04:57:30 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r3, 0x800, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}]}, 0x24}, 0x1, 0x0, 0x0, 0x800}, 0x20000080) bpf$OBJ_GET_PROG(0x7, &(0x7f0000000280)={&(0x7f0000000240)='./file0\x00', 0x0, 0x10}, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) sendto$x25(r6, &(0x7f00000003c0)="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", 0x1000, 0x4000000, &(0x7f0000000080), 0x12) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000300), 0x2681, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x100010, r8, 0x82000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000340)={0x68, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x4}]}, 0x68}, 0x1, 0x0, 0x0, 0x4008804}, 0x0) 04:57:30 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xffffffffffffff75, &(0x7f0000000300)={&(0x7f0000000400)={0x74, r4, 0x1, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x4}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '}^(&'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}]}, 0x74}, 0x1, 0x0, 0x0, 0x48040}, 0x5) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket$rds(0x15, 0x5, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) r7 = socket$rds(0x15, 0x5, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), 0xffffffffffffffff) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r8) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000480)={&(0x7f0000000500)=ANY=[@ANYBLOB="8886c8289dc31b86cf5064310bef1b30b7a5cd118eee44c62da05235f6fe9703b1ee5f2da44dd7a6d73bc695f1170c6015c7550fce484411e74c22cdf46ab952bdc27031d97baf9bf67e4a8ab67ca3e0f32682712279", @ANYRES16=r10, @ANYBLOB="00082cbd7000ffdbdf250800000006000b001100000014000500fe88000000000000000000000000010114000600fc0200000000000000000000000000000800040003000000"], 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) setsockopt$RDS_CANCEL_SENT_TO(r7, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="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", @ANYRES32, @ANYRESOCT=r7, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x5}, 0x0) [ 1329.111489] nbd: must specify a device to reconfigure 04:57:30 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80005}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r3, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x58}, 0x1, 0x0, 0x0, 0x4840}, 0xc0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r4, @ANYBLOB="190100000000000000000300235e5cdd107e96d792bf"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80005}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r3, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x58}, 0x1, 0x0, 0x0, 0x4840}, 0xc0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r4, @ANYBLOB="190100000000000000000300235e5cdd107e96d792bf"], 0x1c}}, 0x0) (async) 04:57:30 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x341400, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x98, r2, 0x400, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3a5}]}, 0x98}, 0x1, 0x0, 0x0, 0x8081}, 0x4008004) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x341400, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x98, r2, 0x400, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3a5}]}, 0x98}, 0x1, 0x0, 0x0, 0x8081}, 0x4008004) (async) 04:57:30 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r3, 0x800, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}]}, 0x24}, 0x1, 0x0, 0x0, 0x800}, 0x20000080) (async) bpf$OBJ_GET_PROG(0x7, &(0x7f0000000280)={&(0x7f0000000240)='./file0\x00', 0x0, 0x10}, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) sendto$x25(r6, &(0x7f00000003c0)="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", 0x1000, 0x4000000, &(0x7f0000000080), 0x12) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) (async) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000300), 0x2681, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x100010, r8, 0x82000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000340)={0x68, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x4}]}, 0x68}, 0x1, 0x0, 0x0, 0x4008804}, 0x0) 04:57:30 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async) ioctl$TUNSETSTEERINGEBPF(0xffffffffffffffff, 0x800454e0, &(0x7f00000002c0)=r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000140), r1) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x14, r2, 0x300, 0x70bd26, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x20008800}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="2aae", @ANYRES16=r4, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000280), 0x2802, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000340)={0xffffffffffffffff}) (async) r10 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r10, 0x82000000) (async) r11 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000380), 0x1, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000004c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0xa4, r4, 0x10, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x38bf}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r0}, {0x8, 0x1, r0}, {0x8, 0x1, r5}, {0x8, 0x1, r0}, {0x8, 0x1, r0}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r0}, {0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r0}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x4000001}, 0x20004001) 04:57:30 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r0) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000300)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="6100c0aaca6705000000000000000843", @ANYRES16=r3, @ANYBLOB="00022abd7000fbdbdf250100000008000c00020000000800040002000000200001002f7379732f6b65726e656c2f64656275672f73796e632f696e666f00080004000300000006000b001f000000"], 0x54}}, 0x40) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_PROTOCOLS(r7, &(0x7f0000000580)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000540)={&(0x7f0000000500)={0x3c, r3, 0x200, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x1, 0x0}}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000800}, 0x8820) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r5, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x48, r8, 0x8, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xa}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0={0xfc, 0x0, '\x00', 0x1}}]}, 0x48}, 0x1, 0x0, 0x0, 0x84}, 0x8000) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r4, 0x84, 0x7, &(0x7f0000000000)={0x200}, 0x4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000900)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYRESHEX=r8, @ANYRES64=r8, @ANYBLOB="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", @ANYRES32=r6, @ANYBLOB="0c00020000000000000000000800010000000000", @ANYRESDEC=r7, @ANYRES32=r0, @ANYRESDEC=r1, @ANYRESHEX=r7], 0x3c}, 0x1, 0x0, 0x0, 0x4000800}, 0x0) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0xa081, 0x0) ioctl$VHOST_SET_VRING_KICK(r4, 0x4008af20, &(0x7f00000000c0)={0x1, r9}) 04:57:30 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) 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$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xffffffffffffff75, &(0x7f0000000300)={&(0x7f0000000400)={0x74, r4, 0x1, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x4}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '}^(&'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}]}, 0x74}, 0x1, 0x0, 0x0, 0x48040}, 0x5) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket$rds(0x15, 0x5, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) r7 = socket$rds(0x15, 0x5, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), 0xffffffffffffffff) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r8) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000480)={&(0x7f0000000500)=ANY=[@ANYBLOB="8886c8289dc31b86cf5064310bef1b30b7a5cd118eee44c62da05235f6fe9703b1ee5f2da44dd7a6d73bc695f1170c6015c7550fce484411e74c22cdf46ab952bdc27031d97baf9bf67e4a8ab67ca3e0f32682712279", @ANYRES16=r10, @ANYBLOB="00082cbd7000ffdbdf250800000006000b001100000014000500fe88000000000000000000000000010114000600fc0200000000000000000000000000000800040003000000"], 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) setsockopt$RDS_CANCEL_SENT_TO(r7, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="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", @ANYRES32, @ANYRESOCT=r7, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x5}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xffffffffffffff75, &(0x7f0000000300)={&(0x7f0000000400)={0x74, r4, 0x1, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x4}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '}^(&'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}]}, 0x74}, 0x1, 0x0, 0x0, 0x48040}, 0x5) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socket$rds(0x15, 0x5, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) socket$rds(0x15, 0x5, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r8) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000480)={&(0x7f0000000500)=ANY=[@ANYBLOB="8886c8289dc31b86cf5064310bef1b30b7a5cd118eee44c62da05235f6fe9703b1ee5f2da44dd7a6d73bc695f1170c6015c7550fce484411e74c22cdf46ab952bdc27031d97baf9bf67e4a8ab67ca3e0f32682712279", @ANYRES16=r10, @ANYBLOB="00082cbd7000ffdbdf250800000006000b001100000014000500fe88000000000000000000000000010114000600fc0200000000000000000000000000000800040003000000"], 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) (async) setsockopt$RDS_CANCEL_SENT_TO(r7, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="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", @ANYRES32, @ANYRESOCT=r7, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x5}, 0x0) (async) [ 1329.173829] nbd: must specify a size in bytes for the device 04:57:30 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80005}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r3, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x58}, 0x1, 0x0, 0x0, 0x4840}, 0xc0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r4, @ANYBLOB="190100000000000000000300235e5cdd107e96d792bf"], 0x1c}}, 0x0) [ 1329.233847] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1329.250424] nbd: must specify a device to reconfigure 04:57:30 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r3, 0x800, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}]}, 0x24}, 0x1, 0x0, 0x0, 0x800}, 0x20000080) bpf$OBJ_GET_PROG(0x7, &(0x7f0000000280)={&(0x7f0000000240)='./file0\x00', 0x0, 0x10}, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) sendto$x25(r6, &(0x7f00000003c0)="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", 0x1000, 0x4000000, &(0x7f0000000080), 0x12) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000300), 0x2681, 0x0) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x100010, r8, 0x82000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000340)={0x68, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x4}]}, 0x68}, 0x1, 0x0, 0x0, 0x4008804}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, r3, 0x800, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}]}, 0x24}, 0x1, 0x0, 0x0, 0x800}, 0x20000080) (async) bpf$OBJ_GET_PROG(0x7, &(0x7f0000000280)={&(0x7f0000000240)='./file0\x00', 0x0, 0x10}, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) sendto$x25(r6, &(0x7f00000003c0)="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", 0x1000, 0x4000000, &(0x7f0000000080), 0x12) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000300), 0x2681, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x100010, r8, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000340)={0x68, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x4}]}, 0x68}, 0x1, 0x0, 0x0, 0x4008804}, 0x0) (async) 04:57:30 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x341400, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x98, r2, 0x400, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3a5}]}, 0x98}, 0x1, 0x0, 0x0, 0x8081}, 0x4008004) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000000c0), 0x341400, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x98, r2, 0x400, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x26}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3a5}]}, 0x98}, 0x1, 0x0, 0x0, 0x8081}, 0x4008004) (async) 04:57:30 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async) ioctl$TUNSETSTEERINGEBPF(0xffffffffffffffff, 0x800454e0, &(0x7f00000002c0)=r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000140), r1) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x14, r2, 0x300, 0x70bd26, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x20008800}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="2aae", @ANYRES16=r4, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async, rerun: 32) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000280), 0x2802, 0x0) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000340)={0xffffffffffffffff}) (async) r10 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r10, 0x82000000) (async) r11 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000380), 0x1, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000004c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0xa4, r4, 0x10, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x38bf}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r0}, {0x8, 0x1, r0}, {0x8, 0x1, r5}, {0x8, 0x1, r0}, {0x8, 0x1, r0}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r0}, {0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r0}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x4000001}, 0x20004001) [ 1329.323678] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1329.343619] nbd: must specify a device to reconfigure 04:57:30 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r0) r1 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8739d79a36770d48}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x28, r1, 0x400, 0x3, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}]}, 0x28}, 0x1, 0x0, 0x0, 0x40000}, 0x24008000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r4, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:30 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r0) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000300)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000480)=ANY=[@ANYBLOB="6100c0aaca6705000000000000000843", @ANYRES16=r3, @ANYBLOB="00022abd7000fbdbdf250100000008000c00020000000800040002000000200001002f7379732f6b65726e656c2f64656275672f73796e632f696e666f00080004000300000006000b001f000000"], 0x54}}, 0x40) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_PROTOCOLS(r7, &(0x7f0000000580)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000540)={&(0x7f0000000500)={0x3c, r3, 0x200, 0x70bd2c, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x1, 0x0}}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000800}, 0x8820) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r5, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x48, r8, 0x8, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xa}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0={0xfc, 0x0, '\x00', 0x1}}]}, 0x48}, 0x1, 0x0, 0x0, 0x84}, 0x8000) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r4, 0x84, 0x7, &(0x7f0000000000)={0x200}, 0x4) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000900)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYRESHEX=r8, @ANYRES64=r8, @ANYBLOB="08000000000000000000e64edcb140c35cc08648e419abb07e3853f668e7a0eab674985d90f79d884a69071a7a3d7c379e8a0aa0204e01f4b1e4225400164d558a4b2316f0088cb4f170cbd9738ba0699c7ac091b712621fcb900d0abde2530d89985af9e7b7b7845803c67cedae8c3f26ca5080f6229ac5f0ed2e94ad0fe23a807cbddf47970d60894f3a39580c0cbfedef6095b04b7e6048d206a7ff5bde0753301e1a24a5687c03c5a5e686e3ba4f8177b02cb91928eadd97b409691114c59501bd5ee6792fb22bc6bde654da6fe95801b8d7ba7803a3e6e92ff4cf336f99dba744920900000000000000000000000000000008d5a00ca42b8fda332f2e64906a130eb90d7c4098b135ca20cf64f0b62fda5064cb8442df44ffb239b00ef28bbbe50f18b187f7d8c8bf582fea4a6e1a72292899d9259422063408d8544b101fcc635687dc4605be9ef722ab5c83981da7d17cc3b45e8f381ac1765a416c54cfea0dba721504100078bad51ab147878f98c9acbe286a6d1a7b058eeee2bb44ec5ac8d0faa72ddb0c0f8ee4c7bc24234867aba6ea8240e373b4711a8f77a33c9e16", @ANYRES32=r6, @ANYBLOB="0c00020000000000000000000800010000000000", @ANYRESDEC=r7, @ANYRES32=r0, @ANYRESDEC=r1, @ANYRESHEX=r7], 0x3c}, 0x1, 0x0, 0x0, 0x4000800}, 0x0) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0xa081, 0x0) ioctl$VHOST_SET_VRING_KICK(r4, 0x4008af20, &(0x7f00000000c0)={0x1, r9}) [ 1329.364633] nbd: must specify a size in bytes for the device 04:57:30 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) 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$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xffffffffffffff75, &(0x7f0000000300)={&(0x7f0000000400)={0x74, r4, 0x1, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x4}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '}^(&'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}]}, 0x74}, 0x1, 0x0, 0x0, 0x48040}, 0x5) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket$rds(0x15, 0x5, 0x0) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) r7 = socket$rds(0x15, 0x5, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), 0xffffffffffffffff) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r8) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000480)={&(0x7f0000000500)=ANY=[@ANYBLOB="8886c8289dc31b86cf5064310bef1b30b7a5cd118eee44c62da05235f6fe9703b1ee5f2da44dd7a6d73bc695f1170c6015c7550fce484411e74c22cdf46ab952bdc27031d97baf9bf67e4a8ab67ca3e0f32682712279", @ANYRES16=r10, @ANYBLOB="00082cbd7000ffdbdf250800000006000b001100000014000500fe88000000000000000000000000010114000600fc0200000000000000000000000000000800040003000000"], 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) setsockopt$RDS_CANCEL_SENT_TO(r7, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="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", @ANYRES32, @ANYRESOCT=r7, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x5}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000}, 0xffffffffffffff75, &(0x7f0000000300)={&(0x7f0000000400)={0x74, r4, 0x1, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x4}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '}^(&'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}]}, 0x74}, 0x1, 0x0, 0x0, 0x48040}, 0x5) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socket$rds(0x15, 0x5, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) socket$rds(0x15, 0x5, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r8) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r10, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000480)={&(0x7f0000000500)=ANY=[@ANYBLOB="8886c8289dc31b86cf5064310bef1b30b7a5cd118eee44c62da05235f6fe9703b1ee5f2da44dd7a6d73bc695f1170c6015c7550fce484411e74c22cdf46ab952bdc27031d97baf9bf67e4a8ab67ca3e0f32682712279", @ANYRES16=r10, @ANYBLOB="00082cbd7000ffdbdf250800000006000b001100000014000500fe88000000000000000000000000010114000600fc0200000000000000000000000000000800040003000000"], 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x4000000) (async) setsockopt$RDS_CANCEL_SENT_TO(r7, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="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", @ANYRES32, @ANYRESOCT=r7, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x5}, 0x0) (async) 04:57:30 executing program 2: r0 = gettid() r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = gettid() syz_open_procfs$namespace(r2, 0x0) sched_rr_get_interval(r2, &(0x7f0000000380)) perf_event_open(&(0x7f0000000400)={0x2, 0x80, 0x0, 0x0, 0x1, 0x80, 0x0, 0x8, 0x20000, 0xf, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x40, 0x0, @perf_bp={&(0x7f0000000040), 0x6}, 0x100, 0x7, 0xfffffffc, 0xb, 0x7ff, 0x7fff, 0x6, 0x0, 0xf96, 0x0, 0x3}, r0, 0x8, 0xffffffffffffffff, 0x8) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x4c, r5, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010100}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x39}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000000}, 0x810) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) sendmsg$NLBL_MGMT_C_LISTALL(r6, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x24, r5, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}]}, 0x24}, 0x1, 0x0, 0x0, 0x8040}, 0x4000) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000b246000000000000000000000400078000"/42], 0x30}}, 0x0) 04:57:30 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r0) (async) r1 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8739d79a36770d48}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x28, r1, 0x400, 0x3, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}]}, 0x28}, 0x1, 0x0, 0x0, 0x40000}, 0x24008000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r4, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:30 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) ioctl$SIOCX25GCAUSEDIAG(r3, 0x89e6, &(0x7f0000000080)={0x3f, 0x20}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) getsockopt$inet_sctp6_SCTP_PR_STREAM_STATUS(0xffffffffffffffff, 0x84, 0x74, &(0x7f0000000200)=""/4096, &(0x7f0000000000)=0x1000) 04:57:30 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x80, 0x0, 0x100, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010100}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x68}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}]}, 0x80}, 0x1, 0x0, 0x0, 0x48000}, 0x14000400) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:30 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x58, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x33}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x12}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0xb, 0x1, 'nb$\xd1\xae\x11\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x58}, 0x1, 0x0, 0x0, 0x4}, 0x20000018) [ 1329.472259] nbd: couldn't find a device at index 3 04:57:30 executing program 2: r0 = gettid() r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = gettid() syz_open_procfs$namespace(r2, 0x0) (async) sched_rr_get_interval(r2, &(0x7f0000000380)) (async) perf_event_open(&(0x7f0000000400)={0x2, 0x80, 0x0, 0x0, 0x1, 0x80, 0x0, 0x8, 0x20000, 0xf, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x40, 0x0, @perf_bp={&(0x7f0000000040), 0x6}, 0x100, 0x7, 0xfffffffc, 0xb, 0x7ff, 0x7fff, 0x6, 0x0, 0xf96, 0x0, 0x3}, r0, 0x8, 0xffffffffffffffff, 0x8) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x4c, r5, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010100}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x39}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000000}, 0x810) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) sendmsg$NLBL_MGMT_C_LISTALL(r6, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x24, r5, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}]}, 0x24}, 0x1, 0x0, 0x0, 0x8040}, 0x4000) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000b246000000000000000000000400078000"/42], 0x30}}, 0x0) 04:57:30 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$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x3c, r4, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x42}, 0x80c0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[], 0x3c}, 0x1, 0x0, 0x0, 0x40080}, 0x0) 04:57:30 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x80, 0x0, 0x100, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010100}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x68}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}]}, 0x80}, 0x1, 0x0, 0x0, 0x48000}, 0x14000400) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:30 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) ioctl$SIOCX25GCAUSEDIAG(r3, 0x89e6, &(0x7f0000000080)={0x3f, 0x20}) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) getsockopt$inet_sctp6_SCTP_PR_STREAM_STATUS(0xffffffffffffffff, 0x84, 0x74, &(0x7f0000000200)=""/4096, &(0x7f0000000000)=0x1000) 04:57:30 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r0) (async) r1 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8739d79a36770d48}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x28, r1, 0x400, 0x3, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}]}, 0x28}, 0x1, 0x0, 0x0, 0x40000}, 0x24008000) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r4, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:30 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async, rerun: 64) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x58, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x33}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x12}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0xb, 0x1, 'nb$\xd1\xae\x11\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x58}, 0x1, 0x0, 0x0, 0x4}, 0x20000018) (rerun: 64) [ 1329.564697] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1329.586894] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1329.605062] nbd: couldn't find a device at index 3 04:57:30 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x80, 0x0, 0x100, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010100}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x68}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}]}, 0x80}, 0x1, 0x0, 0x0, 0x48000}, 0x14000400) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:30 executing program 2: r0 = gettid() r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = gettid() syz_open_procfs$namespace(r2, 0x0) sched_rr_get_interval(r2, &(0x7f0000000380)) perf_event_open(&(0x7f0000000400)={0x2, 0x80, 0x0, 0x0, 0x1, 0x80, 0x0, 0x8, 0x20000, 0xf, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x40, 0x0, @perf_bp={&(0x7f0000000040), 0x6}, 0x100, 0x7, 0xfffffffc, 0xb, 0x7ff, 0x7fff, 0x6, 0x0, 0xf96, 0x0, 0x3}, r0, 0x8, 0xffffffffffffffff, 0x8) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x4c, r5, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010100}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x39}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000000}, 0x810) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) sendmsg$NLBL_MGMT_C_LISTALL(r6, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x24, r5, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}]}, 0x24}, 0x1, 0x0, 0x0, 0x8040}, 0x4000) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000b246000000000000000000000400078000"/42], 0x30}}, 0x0) gettid() (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) gettid() (async) syz_open_procfs$namespace(r2, 0x0) (async) sched_rr_get_interval(r2, &(0x7f0000000380)) (async) perf_event_open(&(0x7f0000000400)={0x2, 0x80, 0x0, 0x0, 0x1, 0x80, 0x0, 0x8, 0x20000, 0xf, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x40, 0x0, @perf_bp={&(0x7f0000000040), 0x6}, 0x100, 0x7, 0xfffffffc, 0xb, 0x7ff, 0x7fff, 0x6, 0x0, 0xf96, 0x0, 0x3}, r0, 0x8, 0xffffffffffffffff, 0x8) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) (async) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x4c, r5, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010100}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x39}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000000}, 0x810) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) (async) sendmsg$NLBL_MGMT_C_LISTALL(r6, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x24, r5, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}]}, 0x24}, 0x1, 0x0, 0x0, 0x8040}, 0x4000) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="21060000000000b246000000000000000000000400078000"/42], 0x30}}, 0x0) (async) 04:57:30 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x3c, r4, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x42}, 0x80c0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[], 0x3c}, 0x1, 0x0, 0x0, 0x40080}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x3c, r4, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x42}, 0x80c0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[], 0x3c}, 0x1, 0x0, 0x0, 0x40080}, 0x0) (async) [ 1329.627901] nbd: must specify at least one socket 04:57:30 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r2, 0x200, 0x70ad27, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20000001}, 0x0) [ 1329.675673] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 04:57:30 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) ioctl$SIOCX25GCAUSEDIAG(r3, 0x89e6, &(0x7f0000000080)={0x3f, 0x20}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) getsockopt$inet_sctp6_SCTP_PR_STREAM_STATUS(0xffffffffffffffff, 0x84, 0x74, &(0x7f0000000200)=""/4096, &(0x7f0000000000)=0x1000) 04:57:30 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r2, 0x200, 0x70ad27, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20000001}, 0x0) 04:57:30 executing program 3: r0 = bpf$BPF_BTF_LOAD(0x12, &(0x7f00000001c0)={&(0x7f0000000340)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x78, 0x78, 0xc, [@func_proto={0x0, 0x4, 0x0, 0xd, 0x0, [{0x9, 0x5}, {0x7, 0x87f}, {0x7, 0x2}, {0xe, 0x5}]}, @var={0x9, 0x0, 0x0, 0xe, 0x5, 0x1}, @volatile={0x4, 0x0, 0x0, 0x9, 0x3}, @func_proto={0x0, 0x3, 0x0, 0xd, 0x0, [{0x3, 0x5}, {0xd}, {0xc}]}, @func={0x8, 0x0, 0x0, 0xc, 0x5}]}, {0x0, [0x5f, 0x61, 0x61, 0x2e, 0x30, 0x5f, 0x5f, 0x5f, 0x30, 0x5f]}}, &(0x7f0000000400)=""/155, 0x9c, 0x9b}, 0x20) r1 = bpf$MAP_CREATE(0x0, &(0x7f00000004c0)=@base={0x14, 0x20, 0x8000, 0x3, 0x0, 0xffffffffffffffff, 0xaef, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x5}, 0x48) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) openat$tun(0xffffffffffffff9c, &(0x7f0000000600), 0x363080, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f0000000580)=@bpf_tracing={0x1a, 0x5, &(0x7f0000000000)=@framed={{0x18, 0x0, 0x0, 0x0, 0x6663, 0x0, 0x0, 0x0, 0x101}, [@alu={0x7, 0x0, 0x3, 0x8, 0x1, 0x100, 0x10}, @func={0x85, 0x0, 0x1, 0x0, 0xfffffffffffffff8}]}, &(0x7f0000000080)='GPL\x00', 0x1, 0xfd, &(0x7f00000000c0)=""/253, 0x41100, 0x14, '\x00', 0x0, 0x11, r0, 0x8, &(0x7f0000000240)={0x7, 0x2}, 0x8, 0x10, &(0x7f0000000280)={0x5, 0xa, 0x8, 0x233f}, 0x10, 0x11cf7, 0xffffffffffffffff, 0x0, &(0x7f0000000540)=[r1, r2, 0x1, 0x1, 0xffffffffffffffff]}, 0x80) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r4, 0x119, 0x40000, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x40000) [ 1329.721972] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 04:57:30 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r2, 0x200, 0x70ad27, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x20000001}, 0x0) 04:57:30 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000140007800800010069180a1863c5b6a4d2f9d76270191acf2146a472943833c484debc83cb6968593bfdcd2c074a8700a0249e47a8fcbe613a060c7614c1603d9bc403515e04adc1cdc8b34772b9fb45d5884f9a4ace786ca4e3b5838ee152cd9d1135ea75fdb34c0925506b135108bf9e9f5eba091265528f9d46f55ef27f6938c13d70c78fa5bcd585213853930d7b55b6e019335de3b6fa9132af690081b563551ae794f8085ce00d61c1f079dea30643d50bf296b8f56f663581fcd6678b64611cfd4b23705c68ed8e4d36c75a073e5cddbe93fa22558325f4f5151f2a802ff35a73", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:31 executing program 3: r0 = bpf$BPF_BTF_LOAD(0x12, &(0x7f00000001c0)={&(0x7f0000000340)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x78, 0x78, 0xc, [@func_proto={0x0, 0x4, 0x0, 0xd, 0x0, [{0x9, 0x5}, {0x7, 0x87f}, {0x7, 0x2}, {0xe, 0x5}]}, @var={0x9, 0x0, 0x0, 0xe, 0x5, 0x1}, @volatile={0x4, 0x0, 0x0, 0x9, 0x3}, @func_proto={0x0, 0x3, 0x0, 0xd, 0x0, [{0x3, 0x5}, {0xd}, {0xc}]}, @func={0x8, 0x0, 0x0, 0xc, 0x5}]}, {0x0, [0x5f, 0x61, 0x61, 0x2e, 0x30, 0x5f, 0x5f, 0x5f, 0x30, 0x5f]}}, &(0x7f0000000400)=""/155, 0x9c, 0x9b}, 0x20) r1 = bpf$MAP_CREATE(0x0, &(0x7f00000004c0)=@base={0x14, 0x20, 0x8000, 0x3, 0x0, 0xffffffffffffffff, 0xaef, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x5}, 0x48) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) openat$tun(0xffffffffffffff9c, &(0x7f0000000600), 0x363080, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f0000000580)=@bpf_tracing={0x1a, 0x5, &(0x7f0000000000)=@framed={{0x18, 0x0, 0x0, 0x0, 0x6663, 0x0, 0x0, 0x0, 0x101}, [@alu={0x7, 0x0, 0x3, 0x8, 0x1, 0x100, 0x10}, @func={0x85, 0x0, 0x1, 0x0, 0xfffffffffffffff8}]}, &(0x7f0000000080)='GPL\x00', 0x1, 0xfd, &(0x7f00000000c0)=""/253, 0x41100, 0x14, '\x00', 0x0, 0x11, r0, 0x8, &(0x7f0000000240)={0x7, 0x2}, 0x8, 0x10, &(0x7f0000000280)={0x5, 0xa, 0x8, 0x233f}, 0x10, 0x11cf7, 0xffffffffffffffff, 0x0, &(0x7f0000000540)=[r1, r2, 0x1, 0x1, 0xffffffffffffffff]}, 0x80) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r4, 0x119, 0x40000, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x40000) bpf$BPF_BTF_LOAD(0x12, &(0x7f00000001c0)={&(0x7f0000000340)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x78, 0x78, 0xc, [@func_proto={0x0, 0x4, 0x0, 0xd, 0x0, [{0x9, 0x5}, {0x7, 0x87f}, {0x7, 0x2}, {0xe, 0x5}]}, @var={0x9, 0x0, 0x0, 0xe, 0x5, 0x1}, @volatile={0x4, 0x0, 0x0, 0x9, 0x3}, @func_proto={0x0, 0x3, 0x0, 0xd, 0x0, [{0x3, 0x5}, {0xd}, {0xc}]}, @func={0x8, 0x0, 0x0, 0xc, 0x5}]}, {0x0, [0x5f, 0x61, 0x61, 0x2e, 0x30, 0x5f, 0x5f, 0x5f, 0x30, 0x5f]}}, &(0x7f0000000400)=""/155, 0x9c, 0x9b}, 0x20) (async) bpf$MAP_CREATE(0x0, &(0x7f00000004c0)=@base={0x14, 0x20, 0x8000, 0x3, 0x0, 0xffffffffffffffff, 0xaef, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x5}, 0x48) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) openat$tun(0xffffffffffffff9c, &(0x7f0000000600), 0x363080, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) (async) bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f0000000580)=@bpf_tracing={0x1a, 0x5, &(0x7f0000000000)=@framed={{0x18, 0x0, 0x0, 0x0, 0x6663, 0x0, 0x0, 0x0, 0x101}, [@alu={0x7, 0x0, 0x3, 0x8, 0x1, 0x100, 0x10}, @func={0x85, 0x0, 0x1, 0x0, 0xfffffffffffffff8}]}, &(0x7f0000000080)='GPL\x00', 0x1, 0xfd, &(0x7f00000000c0)=""/253, 0x41100, 0x14, '\x00', 0x0, 0x11, r0, 0x8, &(0x7f0000000240)={0x7, 0x2}, 0x8, 0x10, &(0x7f0000000280)={0x5, 0xa, 0x8, 0x233f}, 0x10, 0x11cf7, 0xffffffffffffffff, 0x0, &(0x7f0000000540)=[r1, r2, 0x1, 0x1, 0xffffffffffffffff]}, 0x80) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r4, 0x119, 0x40000, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x40000) (async) 04:57:31 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$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x3c, r4, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x42}, 0x80c0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[], 0x3c}, 0x1, 0x0, 0x0, 0x40080}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x3c, r4, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}, 0x1, 0x0, 0x0, 0x42}, 0x80c0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[], 0x3c}, 0x1, 0x0, 0x0, 0x40080}, 0x0) (async) [ 1329.924469] netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1329.933454] nbd: must specify a size in bytes for the device [ 1330.010145] nbd: couldn't find a device at index 3 [ 1330.016368] nbd: must specify at least one socket 04:57:31 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x58, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x33}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x12}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0xb, 0x1, 'nb$\xd1\xae\x11\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x58}, 0x1, 0x0, 0x0, 0x4}, 0x20000018) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x58, 0x0, 0x800, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x33}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x12}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0xb, 0x1, 'nb$\xd1\xae\x11\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}]}, 0x58}, 0x1, 0x0, 0x0, 0x4}, 0x20000018) (async) 04:57:31 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c00020300000000e9000000040007ea1bdccfc854be"], 0x30}}, 0x0) 04:57:31 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="240000005392baac10ec3adc5e6f762f9a9abc30168229686d44126d6cec7c3abda6cc59044ae24262b39b93163b5411c7509dd852050be696278f3961fcb10be010e89027afaf471ede82a7ae", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) 04:57:31 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000140007800800010069180a1863c5b6a4d2f9d76270191acf2146a472943833c484debc83cb6968593bfdcd2c074a8700a0249e47a8fcbe613a060c7614c1603d9bc403515e04adc1cdc8b34772b9fb45d5884f9a4ace786ca4e3b5838ee152cd9d1135ea75fdb34c0925506b135108bf9e9f5eba091265528f9d46f55ef27f6938c13d70c78fa5bcd585213853930d7b55b6e019335de3b6fa9132af690081b563551ae794f8085ce00d61c1f079dea30643d50bf296b8f56f663581fcd6678b64611cfd4b23705c68ed8e4d36c75a073e5cddbe93fa22558325f4f5151f2a802ff35a73", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000140007800800010069180a1863c5b6a4d2f9d76270191acf2146a472943833c484debc83cb6968593bfdcd2c074a8700a0249e47a8fcbe613a060c7614c1603d9bc403515e04adc1cdc8b34772b9fb45d5884f9a4ace786ca4e3b5838ee152cd9d1135ea75fdb34c0925506b135108bf9e9f5eba091265528f9d46f55ef27f6938c13d70c78fa5bcd585213853930d7b55b6e019335de3b6fa9132af690081b563551ae794f8085ce00d61c1f079dea30643d50bf296b8f56f663581fcd6678b64611cfd4b23705c68ed8e4d36c75a073e5cddbe93fa22558325f4f5151f2a802ff35a73", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (async) 04:57:31 executing program 3: r0 = bpf$BPF_BTF_LOAD(0x12, &(0x7f00000001c0)={&(0x7f0000000340)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x78, 0x78, 0xc, [@func_proto={0x0, 0x4, 0x0, 0xd, 0x0, [{0x9, 0x5}, {0x7, 0x87f}, {0x7, 0x2}, {0xe, 0x5}]}, @var={0x9, 0x0, 0x0, 0xe, 0x5, 0x1}, @volatile={0x4, 0x0, 0x0, 0x9, 0x3}, @func_proto={0x0, 0x3, 0x0, 0xd, 0x0, [{0x3, 0x5}, {0xd}, {0xc}]}, @func={0x8, 0x0, 0x0, 0xc, 0x5}]}, {0x0, [0x5f, 0x61, 0x61, 0x2e, 0x30, 0x5f, 0x5f, 0x5f, 0x30, 0x5f]}}, &(0x7f0000000400)=""/155, 0x9c, 0x9b}, 0x20) r1 = bpf$MAP_CREATE(0x0, &(0x7f00000004c0)=@base={0x14, 0x20, 0x8000, 0x3, 0x0, 0xffffffffffffffff, 0xaef, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x5}, 0x48) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) openat$tun(0xffffffffffffff9c, &(0x7f0000000600), 0x363080, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) (async) bpf$BPF_PROG_WITH_BTFID_LOAD(0x5, &(0x7f0000000580)=@bpf_tracing={0x1a, 0x5, &(0x7f0000000000)=@framed={{0x18, 0x0, 0x0, 0x0, 0x6663, 0x0, 0x0, 0x0, 0x101}, [@alu={0x7, 0x0, 0x3, 0x8, 0x1, 0x100, 0x10}, @func={0x85, 0x0, 0x1, 0x0, 0xfffffffffffffff8}]}, &(0x7f0000000080)='GPL\x00', 0x1, 0xfd, &(0x7f00000000c0)=""/253, 0x41100, 0x14, '\x00', 0x0, 0x11, r0, 0x8, &(0x7f0000000240)={0x7, 0x2}, 0x8, 0x10, &(0x7f0000000280)={0x5, 0xa, 0x8, 0x233f}, 0x10, 0x11cf7, 0xffffffffffffffff, 0x0, &(0x7f0000000540)=[r1, r2, 0x1, 0x1, 0xffffffffffffffff]}, 0x80) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r4, 0x119, 0x40000, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x40000) 04:57:31 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80801084}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x34, 0x0, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1a}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004000}, 0x4004080) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:31 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c00020300000000e9000000040007ea1bdccfc854be"], 0x30}}, 0x0) [ 1330.562262] nbd: must specify at least one socket 04:57:31 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x8a00, 0x0) ioctl$DRM_IOCTL_SG_FREE(r3, 0x40106439, &(0x7f0000000080)={0x1}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="190100000000000042f599b48a139d6b5110ba3acd00"], 0x1c}}, 0x0) 04:57:31 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="240000005392baac10ec3adc5e6f762f9a9abc30168229686d44126d6cec7c3abda6cc59044ae24262b39b93163b5411c7509dd852050be696278f3961fcb10be010e89027afaf471ede82a7ae", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="240000005392baac10ec3adc5e6f762f9a9abc30168229686d44126d6cec7c3abda6cc59044ae24262b39b93163b5411c7509dd852050be696278f3961fcb10be010e89027afaf471ede82a7ae", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) (async) 04:57:31 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c00020300000000e9000000040007ea1bdccfc854be"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c00020300000000e9000000040007ea1bdccfc854be"], 0x30}}, 0x0) (async) 04:57:31 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80801084}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x34, 0x0, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1a}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004000}, 0x4004080) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) [ 1330.598105] nbd: must specify a size in bytes for the device [ 1330.634976] nbd: socks must be embedded in a SOCK_ITEM attr [ 1330.642606] nbd: must specify at least one socket 04:57:31 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r2, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x5c, r2, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '-*!'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x4004001}, 0x810) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x40, r2, 0x10, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '-*!'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x59156421991f2a8f}]}, 0x40}, 0x1, 0x0, 0x0, 0x8001}, 0x0) 04:57:31 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="240000005392baac10ec3adc5e6f762f9a9abc30168229686d44126d6cec7c3abda6cc59044ae24262b39b93163b5411c7509dd852050be696278f3961fcb10be010e89027afaf471ede82a7ae", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) [ 1330.698911] nbd: must specify a size in bytes for the device [ 1330.707116] nbd: must specify at least one socket 04:57:31 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000140007800800010069180a1863c5b6a4d2f9d76270191acf2146a472943833c484debc83cb6968593bfdcd2c074a8700a0249e47a8fcbe613a060c7614c1603d9bc403515e04adc1cdc8b34772b9fb45d5884f9a4ace786ca4e3b5838ee152cd9d1135ea75fdb34c0925506b135108bf9e9f5eba091265528f9d46f55ef27f6938c13d70c78fa5bcd585213853930d7b55b6e019335de3b6fa9132af690081b563551ae794f8085ce00d61c1f079dea30643d50bf296b8f56f663581fcd6678b64611cfd4b23705c68ed8e4d36c75a073e5cddbe93fa22558325f4f5151f2a802ff35a73", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:31 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80801084}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x34, 0x0, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x23}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1a}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004000}, 0x4004080) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:31 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='q\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000000c0006000100e0ffffffffff0b000200"/50], 0x38}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0xc, 0x1, ',#]]!)(\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x28}, 0x1, 0x0, 0x0, 0xc000}, 0x4000000) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r2) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x30, r4, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x2e}}]}, 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x1) 04:57:31 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x8a00, 0x0) ioctl$DRM_IOCTL_SG_FREE(r3, 0x40106439, &(0x7f0000000080)={0x1}) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="190100000000000042f599b48a139d6b5110ba3acd00"], 0x1c}}, 0x0) [ 1330.762402] nbd: socks must be embedded in a SOCK_ITEM attr [ 1330.786437] nbd: must specify at least one socket 04:57:31 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = gettid() syz_open_procfs$namespace(r2, 0x0) sched_rr_get_interval(r2, &(0x7f0000000000)) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) getsockopt$inet_sctp6_SCTP_I_WANT_MAPPED_V4_ADDR(0xffffffffffffffff, 0x84, 0xc, &(0x7f0000000080), &(0x7f00000000c0)=0x4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) [ 1330.821812] nbd: must specify a size in bytes for the device 04:57:32 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x8a00, 0x0) ioctl$DRM_IOCTL_SG_FREE(r3, 0x40106439, &(0x7f0000000080)={0x1}) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="190100000000000042f599b48a139d6b5110ba3acd00"], 0x1c}}, 0x0) 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r2, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x5c, r2, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '-*!'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x4004001}, 0x810) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x40, r2, 0x10, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '-*!'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x59156421991f2a8f}]}, 0x40}, 0x1, 0x0, 0x0, 0x8001}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r2, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x80) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x5c, r2, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '-*!'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x4004001}, 0x810) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x40, r2, 0x10, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '-*!'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x59156421991f2a8f}]}, 0x40}, 0x1, 0x0, 0x0, 0x8001}, 0x0) (async) 04:57:32 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2263cec6060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) 04:57:32 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = gettid() syz_open_procfs$namespace(r2, 0x0) sched_rr_get_interval(r2, &(0x7f0000000000)) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) getsockopt$inet_sctp6_SCTP_I_WANT_MAPPED_V4_ADDR(0xffffffffffffffff, 0x84, 0xc, &(0x7f0000000080), &(0x7f00000000c0)=0x4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) gettid() (async) syz_open_procfs$namespace(r2, 0x0) (async) sched_rr_get_interval(r2, &(0x7f0000000000)) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) getsockopt$inet_sctp6_SCTP_I_WANT_MAPPED_V4_ADDR(0xffffffffffffffff, 0x84, 0xc, &(0x7f0000000080), &(0x7f00000000c0)=0x4) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) 04:57:32 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='q\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000000c0006000100e0ffffffffff0b000200"/50], 0x38}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0xc, 0x1, ',#]]!)(\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x28}, 0x1, 0x0, 0x0, 0xc000}, 0x4000000) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r2) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x30, r4, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x2e}}]}, 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='q\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000000c0006000100e0ffffffffff0b000200"/50], 0x38}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0xc, 0x1, ',#]]!)(\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x28}, 0x1, 0x0, 0x0, 0xc000}, 0x4000000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r2) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x30, r4, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x2e}}]}, 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x1) (async) 04:57:32 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="20d82dbd7000fddbdfa5028300000008000473b9ffffff080000fd26785a00"], 0x24}, 0x1, 0x0, 0x0, 0x20044880}, 0x1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) [ 1330.906652] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:32 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x44, 0x0, 0x203, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x30c64247c2d6f503}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '#+\x00'}]}, 0x44}, 0x1, 0x0, 0x0, 0x10}, 0x884) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYRES16=r1, @ANYRES16=r2, @ANYBLOB="19010000001dd4124b94f54c6202a5d79e8491000000"], 0x1c}}, 0x4001) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x3c, r3, 0x1, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '+'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x3c}}, 0x0) 04:57:32 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2263cec6060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r2, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8000}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4}, 0x80) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x5c, r2, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '-*!'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x4004001}, 0x810) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x40, r2, 0x10, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '-*!'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x59156421991f2a8f}]}, 0x40}, 0x1, 0x0, 0x0, 0x8001}, 0x0) 04:57:32 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = gettid() syz_open_procfs$namespace(r2, 0x0) sched_rr_get_interval(r2, &(0x7f0000000000)) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) getsockopt$inet_sctp6_SCTP_I_WANT_MAPPED_V4_ADDR(0xffffffffffffffff, 0x84, 0xc, &(0x7f0000000080), &(0x7f00000000c0)=0x4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) gettid() (async) syz_open_procfs$namespace(r2, 0x0) (async) sched_rr_get_interval(r2, &(0x7f0000000000)) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) getsockopt$inet_sctp6_SCTP_I_WANT_MAPPED_V4_ADDR(0xffffffffffffffff, 0x84, 0xc, &(0x7f0000000080), &(0x7f00000000c0)=0x4) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) 04:57:32 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x44, 0x0, 0x203, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x30c64247c2d6f503}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '#+\x00'}]}, 0x44}, 0x1, 0x0, 0x0, 0x10}, 0x884) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYRES16=r1, @ANYRES16=r2, @ANYBLOB="19010000001dd4124b94f54c6202a5d79e8491000000"], 0x1c}}, 0x4001) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x3c, r3, 0x1, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '+'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x3c}}, 0x0) 04:57:32 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="20d82dbd7000fddbdfa5028300000008000473b9ffffff080000fd26785a00"], 0x24}, 0x1, 0x0, 0x0, 0x20044880}, 0x1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:32 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2263cec6060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2263cec6060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) (async) 04:57:32 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) (rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='q\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000000c0006000100e0ffffffffff0b000200"/50], 0x38}}, 0x0) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x28, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0xc, 0x1, ',#]]!)(\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x28}, 0x1, 0x0, 0x0, 0xc000}, 0x4000000) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r2) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000340)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x30, r4, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x2e}}]}, 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x1) [ 1331.014964] nbd: socks must be embedded in a SOCK_ITEM attr [ 1331.042325] nbd: must specify an index to disconnect 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000002c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)={0x44, r4, 0x300, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xf}, @NLBL_MGMT_A_FAMILY={0x6}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}]}, 0x44}}, 0x4080000) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r5 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r5, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES64=r5, @ANYBLOB="21060000000000000000010000000000000009000000000000000c00020000000000000000004400078001152c10af201269d124ab461749b95a82fbce1b3fe8fb6365ff5d987c031f9ccd22b167ec98b50dd9db8e1e7b81c5e1c60257b60bdb2613a0a6df4d8463cdb5d3846ce0d16a36a9249373b74d922117d46a83d7b71b85273f4babffbd9481549e750573e95c86a42c03fd019c9e16de45b94e71d97dfdc37259073a80"], 0x30}}, 0x20004081) 04:57:32 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="20d82dbd7000fddbdfa5028300000008000473b9ffffff080000fd26785a00"], 0x24}, 0x1, 0x0, 0x0, 0x20044880}, 0x1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:32 executing program 1: r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) sendmsg$802154_dgram(r0, 0x0, 0x0) setsockopt$WPAN_SECURITY(r0, 0x0, 0x1, &(0x7f0000000000), 0x4) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000240)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x1c, r5, 0x4, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '!\x00'}]}, 0x1c}}, 0x40000) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="21060000000000000000010000000c0002024d2100000000000006271e0edf54e22d1aae29b70bc232e8289753a48dcda9681ed9a2fc10379067dab551ddf86dafbf21bb2f22507156f123e58837c533c80fb5011793f2ca0a5c1bdc826d3bd2eccb06d83928f26b0bd4968c13011f8b52154d"], 0x24}}, 0x0) 04:57:32 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) 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$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r5, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000840}, 0x20004000) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000003c0)={&(0x7f0000000240)={0x40, r5, 0x2, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xa}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x38}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x20}}]}, 0x40}, 0x1, 0x0, 0x0, 0x200008d0}, 0x4004080) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="1c7625614600000700000000000000000000c800"], 0x3c}}, 0x0) 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000002c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)={0x44, r4, 0x300, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xf}, @NLBL_MGMT_A_FAMILY={0x6}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}]}, 0x44}}, 0x4080000) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 32) r5 = socket$rds(0x15, 0x5, 0x0) (rerun: 32) setsockopt$RDS_CANCEL_SENT_TO(r5, 0x114, 0x1, 0x0, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES64=r5, @ANYBLOB="21060000000000000000010000000000000009000000000000000c00020000000000000000004400078001152c10af201269d124ab461749b95a82fbce1b3fe8fb6365ff5d987c031f9ccd22b167ec98b50dd9db8e1e7b81c5e1c60257b60bdb2613a0a6df4d8463cdb5d3846ce0d16a36a9249373b74d922117d46a83d7b71b85273f4babffbd9481549e750573e95c86a42c03fd019c9e16de45b94e71d97dfdc37259073a80"], 0x30}}, 0x20004081) (rerun: 32) [ 1331.156649] nbd: socks must be embedded in a SOCK_ITEM attr [ 1331.183760] nbd: must specify an index to disconnect 04:57:32 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x44, 0x0, 0x203, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x30c64247c2d6f503}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '#+\x00'}]}, 0x44}, 0x1, 0x0, 0x0, 0x10}, 0x884) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000080)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYRES16=r1, @ANYRES16=r2, @ANYBLOB="19010000001dd4124b94f54c6202a5d79e8491000000"], 0x1c}}, 0x4001) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x3c, r3, 0x1, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '+'}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x3c}}, 0x0) 04:57:32 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000340)=ANY=[@ANYBLOB="dc000000", @ANYRES16=r2, @ANYBLOB="02002cbd788008419200000000000000000000000000e42b0fd934e6e5f7f416d17f0610ac4a1ad8c92749c55f0bfdfc7b17f6a5268b1d0a633c12d9", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="1c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="2400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c000500000000000000000008000100000000000c000400ab000000000000000c00030075d4ffffffffffff0c00050008000000000000000c0003007700000000000000"], 0xdc}, 0x1, 0x0, 0x0, 0x8000}, 0xc8c4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x2c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}}, 0x0) 04:57:32 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r5, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000840}, 0x20004000) (async, rerun: 64) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000003c0)={&(0x7f0000000240)={0x40, r5, 0x2, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xa}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x38}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x20}}]}, 0x40}, 0x1, 0x0, 0x0, 0x200008d0}, 0x4004080) (rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="1c7625614600000700000000000000000000c800"], 0x3c}}, 0x0) 04:57:32 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$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x4c, r2, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x7, 0x1, '@(\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x20044000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) [ 1331.236418] nbd: must specify a size in bytes for the device [ 1331.256267] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:32 executing program 1: r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) sendmsg$802154_dgram(r0, 0x0, 0x0) (async) setsockopt$WPAN_SECURITY(r0, 0x0, 0x1, &(0x7f0000000000), 0x4) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000240)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x1c, r5, 0x4, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '!\x00'}]}, 0x1c}}, 0x40000) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="21060000000000000000010000000c0002024d2100000000000006271e0edf54e22d1aae29b70bc232e8289753a48dcda9681ed9a2fc10379067dab551ddf86dafbf21bb2f22507156f123e58837c533c80fb5011793f2ca0a5c1bdc826d3bd2eccb06d83928f26b0bd4968c13011f8b52154d"], 0x24}}, 0x0) [ 1331.301097] nbd: must specify at least one socket 04:57:32 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x4c, r2, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x7, 0x1, '@(\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x20044000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r1) (async) sendmsg$NLBL_MGMT_C_LISTALL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x4c, r2, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x7, 0x1, '@(\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x20044000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) [ 1331.335099] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:32 executing program 3: ioctl$SIOCX25GCALLUSERDATA(0xffffffffffffffff, 0x89e4, &(0x7f0000000080)={0x69, "b7986f47d2780615e38e1fd31e561af9292a87226a68a10debe4e3acfa82a1828aa609872d8847f2b11324022ecd04ba414f0f2fb3b52aa5f6bbf0eea648013318f90f38e22e0c4ada43c14bd98a3b321e832ad8d1cf03424f5d1781165674c53a7d23878370da54c148d535344512a241f6cfa6aca2a218b1df050b1b59ce9c"}) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1331.385729] nbd: must specify a size in bytes for the device [ 1331.417581] nbd: must specify a size in bytes for the device 04:57:32 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000340)=ANY=[@ANYBLOB="dc000000", @ANYRES16=r2, @ANYBLOB="02002cbd788008419200000000000000000000000000e42b0fd934e6e5f7f416d17f0610ac4a1ad8c92749c55f0bfdfc7b17f6a5268b1d0a633c12d9", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="1c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="2400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c000500000000000000000008000100000000000c000400ab000000000000000c00030075d4ffffffffffff0c00050008000000000000000c0003007700000000000000"], 0xdc}, 0x1, 0x0, 0x0, 0x8000}, 0xc8c4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x2c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000340)=ANY=[@ANYBLOB="dc000000", @ANYRES16=r2, @ANYBLOB="02002cbd788008419200000000000000000000000000e42b0fd934e6e5f7f416d17f0610ac4a1ad8c92749c55f0bfdfc7b17f6a5268b1d0a633c12d9", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="1c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="2400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c000500000000000000000008000100000000000c000400ab000000000000000c00030075d4ffffffffffff0c00050008000000000000000c0003007700000000000000"], 0xdc}, 0x1, 0x0, 0x0, 0x8000}, 0xc8c4) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x2c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}}, 0x0) (async) 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000002c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)={0x44, r4, 0x300, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xf}, @NLBL_MGMT_A_FAMILY={0x6}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}]}, 0x44}}, 0x4080000) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r5 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r5, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES64=r5, @ANYBLOB="21060000000000000000010000000000000009000000000000000c00020000000000000000004400078001152c10af201269d124ab461749b95a82fbce1b3fe8fb6365ff5d987c031f9ccd22b167ec98b50dd9db8e1e7b81c5e1c60257b60bdb2613a0a6df4d8463cdb5d3846ce0d16a36a9249373b74d922117d46a83d7b71b85273f4babffbd9481549e750573e95c86a42c03fd019c9e16de45b94e71d97dfdc37259073a80"], 0x30}}, 0x20004081) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000002c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)={0x44, r4, 0x300, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xf}, @NLBL_MGMT_A_FAMILY={0x6}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}]}, 0x44}}, 0x4080000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r5, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES64=r5, @ANYBLOB="21060000000000000000010000000000000009000000000000000c00020000000000000000004400078001152c10af201269d124ab461749b95a82fbce1b3fe8fb6365ff5d987c031f9ccd22b167ec98b50dd9db8e1e7b81c5e1c60257b60bdb2613a0a6df4d8463cdb5d3846ce0d16a36a9249373b74d922117d46a83d7b71b85273f4babffbd9481549e750573e95c86a42c03fd019c9e16de45b94e71d97dfdc37259073a80"], 0x30}}, 0x20004081) (async) 04:57:32 executing program 1: r0 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) sendmsg$802154_dgram(r0, 0x0, 0x0) setsockopt$WPAN_SECURITY(r0, 0x0, 0x1, &(0x7f0000000000), 0x4) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000240)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x1c, r5, 0x4, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '!\x00'}]}, 0x1c}}, 0x40000) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="21060000000000000000010000000c0002024d2100000000000006271e0edf54e22d1aae29b70bc232e8289753a48dcda9681ed9a2fc10379067dab551ddf86dafbf21bb2f22507156f123e58837c533c80fb5011793f2ca0a5c1bdc826d3bd2eccb06d83928f26b0bd4968c13011f8b52154d"], 0x24}}, 0x0) [ 1331.440166] nbd: must specify at least one socket 04:57:32 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r5, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000840}, 0x20004000) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000003c0)={&(0x7f0000000240)={0x40, r5, 0x2, 0x70bd28, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0xa}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x38}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x20}}]}, 0x40}, 0x1, 0x0, 0x0, 0x200008d0}, 0x4004080) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="1c7625614600000700000000000000000000c800"], 0x3c}}, 0x0) [ 1331.471916] nbd: socks must be embedded in a SOCK_ITEM attr [ 1331.509827] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) bpf$OBJ_GET_PROG(0x7, &(0x7f0000000080)={&(0x7f0000000000)='./file0\x00', 0x0, 0x18}, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="b557a28d1b040b1bb0167967ed6b9c874e96605baa2419188f98200e34f2f10add00836e1785e39bfeef80fc99f013a6464e89db1c4ef464e15cfcfc7ecbdf1e04a8b52209d2133d7cb84d7dce2804afd64b73", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:32 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$netlbl_mgmt(&(0x7f00000000c0), r1) sendmsg$NLBL_MGMT_C_LISTALL(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x4c, r2, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x7, 0x1, '@(\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0x20044000) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:32 executing program 3: ioctl$SIOCX25GCALLUSERDATA(0xffffffffffffffff, 0x89e4, &(0x7f0000000080)={0x69, "b7986f47d2780615e38e1fd31e561af9292a87226a68a10debe4e3acfa82a1828aa609872d8847f2b11324022ecd04ba414f0f2fb3b52aa5f6bbf0eea648013318f90f38e22e0c4ada43c14bd98a3b321e832ad8d1cf03424f5d1781165674c53a7d23878370da54c148d535344512a241f6cfa6aca2a218b1df050b1b59ce9c"}) (async, rerun: 32) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1331.533150] nbd: must specify a size in bytes for the device [ 1331.548809] block nbd0: not configured, cannot reconfigure [ 1331.555581] nbd: must specify at least one socket 04:57:32 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r5, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x1c, r8, 0xc00, 0x70bd26, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x10}, 0x40011) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x44, r9, 0x100, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8001}]}, 0x44}, 0x1, 0x0, 0x0, 0x40400c4}, 0x40000) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r10, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:32 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000340)=ANY=[@ANYBLOB="dc000000", @ANYRES16=r2, @ANYBLOB="02002cbd788008419200000000000000000000000000e42b0fd934e6e5f7f416d17f0610ac4a1ad8c92749c55f0bfdfc7b17f6a5268b1d0a633c12d9", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="1c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="2400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c000500000000000000000008000100000000000c000400ab000000000000000c00030075d4ffffffffffff0c00050008000000000000000c0003007700000000000000"], 0xdc}, 0x1, 0x0, 0x0, 0x8000}, 0xc8c4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x2c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000340)=ANY=[@ANYBLOB="dc000000", @ANYRES16=r2, @ANYBLOB="02002cbd788008419200000000000000000000000000e42b0fd934e6e5f7f416d17f0610ac4a1ad8c92749c55f0bfdfc7b17f6a5268b1d0a633c12d9", @ANYRES32=r4, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32=r7, @ANYBLOB="1c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="2400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c000500000000000000000008000100000000000c000400ab000000000000000c00030075d4ffffffffffff0c00050008000000000000000c0003007700000000000000"], 0xdc}, 0x1, 0x0, 0x0, 0x8000}, 0xc8c4) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x2c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}}, 0x0) (async) [ 1331.578956] nbd: must specify a size in bytes for the device 04:57:32 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000d36c2fa1ae883f299c1861d01a0000000000000800010000000000"], 0x3c}}, 0x0) 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) bpf$OBJ_GET_PROG(0x7, &(0x7f0000000080)={&(0x7f0000000000)='./file0\x00', 0x0, 0x18}, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="b557a28d1b040b1bb0167967ed6b9c874e96605baa2419188f98200e34f2f10add00836e1785e39bfeef80fc99f013a6464e89db1c4ef464e15cfcfc7ecbdf1e04a8b52209d2133d7cb84d7dce2804afd64b73", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:32 executing program 3: ioctl$SIOCX25GCALLUSERDATA(0xffffffffffffffff, 0x89e4, &(0x7f0000000080)={0x69, "b7986f47d2780615e38e1fd31e561af9292a87226a68a10debe4e3acfa82a1828aa609872d8847f2b11324022ecd04ba414f0f2fb3b52aa5f6bbf0eea648013318f90f38e22e0c4ada43c14bd98a3b321e832ad8d1cf03424f5d1781165674c53a7d23878370da54c148d535344512a241f6cfa6aca2a218b1df050b1b59ce9c"}) (async, rerun: 32) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1331.633567] nbd: must specify a size in bytes for the device 04:57:32 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000d36c2fa1ae883f299c1861d01a0000000000000800010000000000"], 0x3c}}, 0x0) 04:57:32 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async, rerun: 32) sendmsg$NLBL_MGMT_C_LISTALL(r5, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x1c, r8, 0xc00, 0x70bd26, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x10}, 0x40011) (async, rerun: 32) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x44, r9, 0x100, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8001}]}, 0x44}, 0x1, 0x0, 0x0, 0x40400c4}, 0x40000) (async) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r10, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) bpf$OBJ_GET_PROG(0x7, &(0x7f0000000080)={&(0x7f0000000000)='./file0\x00', 0x0, 0x18}, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="b557a28d1b040b1bb0167967ed6b9c874e96605baa2419188f98200e34f2f10add00836e1785e39bfeef80fc99f013a6464e89db1c4ef464e15cfcfc7ecbdf1e04a8b52209d2133d7cb84d7dce2804afd64b73", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:32 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$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000126bd7000fbdbdf250100000008000c000000000014000500fe80000000000000000000000000000d08000c00000000001400050000000000000000000000000000000001"], 0x4c}, 0x1, 0x0, 0x0, 0x40}, 0x24044000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r2) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000240)=ANY=[], 0x3c}, 0x1, 0x0, 0x0, 0x400c068}, 0x0) 04:57:32 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c000000", @ANYRESDEC=r0, @ANYBLOB="19010000000000000000030000ffde2dd20000000000", @ANYBLOB="a977cf92667d90333e964f694ac88b5c098347c75989c8204cce427ca8fdfce235c0226612785a686c2ab5a78a9c"], 0x1c}, 0x1, 0x0, 0x0, 0x4040}, 0x0) 04:57:32 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) 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$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10400049}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x1c, r5, 0x4, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x91) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000f3aae65c33a92b12a235ca006ef47f010000000c00000001000000000000000c"], 0x30}}, 0x0) [ 1331.677533] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:32 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000d36c2fa1ae883f299c1861d01a0000000000000800010000000000"], 0x3c}}, 0x0) 04:57:32 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000126bd7000fbdbdf250100000008000c000000000014000500fe80000000000000000000000000000d08000c00000000001400050000000000000000000000000000000001"], 0x4c}, 0x1, 0x0, 0x0, 0x40}, 0x24044000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r2) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000240)=ANY=[], 0x3c}, 0x1, 0x0, 0x0, 0x400c068}, 0x0) 04:57:32 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c000000", @ANYRESDEC=r0, @ANYBLOB="19010000000000000000030000ffde2dd20000000000", @ANYBLOB="a977cf92667d90333e964f694ac88b5c098347c75989c8204cce427ca8fdfce235c0226612785a686c2ab5a78a9c"], 0x1c}, 0x1, 0x0, 0x0, 0x4040}, 0x0) 04:57:32 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10400049}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x1c, r5, 0x4, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x91) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000f3aae65c33a92b12a235ca006ef47f010000000c00000001000000000000000c"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10400049}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x1c, r5, 0x4, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x91) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000f3aae65c33a92b12a235ca006ef47f010000000c00000001000000000000000c"], 0x30}}, 0x0) (async) 04:57:32 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 32) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000126bd7000fbdbdf250100000008000c000000000014000500fe80000000000000000000000000000d08000c00000000001400050000000000000000000000000000000001"], 0x4c}, 0x1, 0x0, 0x0, 0x40}, 0x24044000) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r2) (async) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000240)=ANY=[], 0x3c}, 0x1, 0x0, 0x0, 0x400c068}, 0x0) 04:57:32 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x38, r6, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x0, 0x0}}}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0xc8855) 04:57:32 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c000000", @ANYRESDEC=r0, @ANYBLOB="19010000000000000000030000ffde2dd20000000000", @ANYBLOB="a977cf92667d90333e964f694ac88b5c098347c75989c8204cce427ca8fdfce235c0226612785a686c2ab5a78a9c"], 0x1c}, 0x1, 0x0, 0x0, 0x4040}, 0x0) 04:57:33 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r5, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x1c, r8, 0xc00, 0x70bd26, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x10}, 0x40011) (async, rerun: 64) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) (rerun: 64) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x44, r9, 0x100, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8001}]}, 0x44}, 0x1, 0x0, 0x0, 0x40400c4}, 0x40000) (async) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r10, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:33 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10400049}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x1c, r5, 0x4, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x91) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000f3aae65c33a92b12a235ca006ef47f010000000c00000001000000000000000c"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10400049}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x1c, r5, 0x4, 0x70bd25, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}]}, 0x1c}, 0x1, 0x0, 0x0, 0x40}, 0x91) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000f3aae65c33a92b12a235ca006ef47f010000000c00000001000000000000000c"], 0x30}}, 0x0) (async) 04:57:33 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = socket$inet_sctp(0x2, 0x5, 0x84) getsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x16, &(0x7f0000000640)={0x3, [0x40, 0x1, 0x29]}, &(0x7f0000000680)=0xa) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x14, r4, 0x200, 0x70bd2b, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x8000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x38, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x38}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000500)=ANY=[@ANYBLOB="3b00000087b1de0455827ccc78b84de2c2a522d084d3d18111b19f61e392d8ef05455519333fd67dd3998cc3714c4924ee7bb183b52713bc2586abe62813f7011fb3597478438fa053de8294f5d9cb0a897a0271b6c66032787a146547bd37dd3fa763bee30c9ae379e82cda41c9e0399ce3dd7d9777cd6509bdec6df5e2a378ec8858fba6118db27d07c8e9c7e0a5bc4f067c6d49a29a17f5da0703c8a4055cfc84792ce582b8c245df82989c5815235e486e35e1b1772e737e84b9ade23c5b1b6968e27dafc59925e49db0a56601101d500a6ba63b5f01a67ddb435661ee2974ed3b9049ae97892c4e", @ANYRES16=r7, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000340)={&(0x7f0000000240), 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x48, r7, 0x100, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x1, 0x0}}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x6}]}, 0x48}, 0x1, 0x0, 0x0, 0x4040}, 0xc000) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000480)={&(0x7f0000000400)={0x48, 0x0, 0x8, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x48}, 0x1, 0x0, 0x0, 0x4048010}, 0x8000004) syz_init_net_socket$x25(0x9, 0x5, 0x0) 04:57:33 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, 0x0, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x30}, 0x1, 0x0, 0x0, 0x20008010}, 0x4000) 04:57:33 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x38, r6, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x0, 0x0}}}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0xc8855) 04:57:33 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000440)={&(0x7f0000000500)={0x48, r8, 0x400, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}]}, 0x48}, 0x1, 0x0, 0x0, 0x4}, 0x801) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x2c, r4, 0x4, 0x70bd26, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x24}]}, 0x2c}, 0x1, 0x0, 0x0, 0x800}, 0x20000000) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000100)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x240a0}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, 0x0, 0x10, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000}, 0x810) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r9, @ANYBLOB="190000000f1aab67219ffa7cca00840f00000000800000000200"], 0x1c}}, 0x0) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r10) 04:57:33 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, 0x0, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x30}, 0x1, 0x0, 0x0, 0x20008010}, 0x4000) 04:57:33 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = socket$inet_sctp(0x2, 0x5, 0x84) getsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x16, &(0x7f0000000640)={0x3, [0x40, 0x1, 0x29]}, &(0x7f0000000680)=0xa) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x14, r4, 0x200, 0x70bd2b, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x8000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x38, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x38}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000500)=ANY=[@ANYBLOB="3b00000087b1de0455827ccc78b84de2c2a522d084d3d18111b19f61e392d8ef05455519333fd67dd3998cc3714c4924ee7bb183b52713bc2586abe62813f7011fb3597478438fa053de8294f5d9cb0a897a0271b6c66032787a146547bd37dd3fa763bee30c9ae379e82cda41c9e0399ce3dd7d9777cd6509bdec6df5e2a378ec8858fba6118db27d07c8e9c7e0a5bc4f067c6d49a29a17f5da0703c8a4055cfc84792ce582b8c245df82989c5815235e486e35e1b1772e737e84b9ade23c5b1b6968e27dafc59925e49db0a56601101d500a6ba63b5f01a67ddb435661ee2974ed3b9049ae97892c4e", @ANYRES16=r7, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000340)={&(0x7f0000000240), 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x48, r7, 0x100, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x1, 0x0}}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x6}]}, 0x48}, 0x1, 0x0, 0x0, 0x4040}, 0xc000) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000480)={&(0x7f0000000400)={0x48, 0x0, 0x8, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x48}, 0x1, 0x0, 0x0, 0x4048010}, 0x8000004) syz_init_net_socket$x25(0x9, 0x5, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socket$inet_sctp(0x2, 0x5, 0x84) (async) getsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x16, &(0x7f0000000640)={0x3, [0x40, 0x1, 0x29]}, &(0x7f0000000680)=0xa) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x14, r4, 0x200, 0x70bd2b, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x8000000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x38, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x38}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000500)=ANY=[@ANYBLOB="3b00000087b1de0455827ccc78b84de2c2a522d084d3d18111b19f61e392d8ef05455519333fd67dd3998cc3714c4924ee7bb183b52713bc2586abe62813f7011fb3597478438fa053de8294f5d9cb0a897a0271b6c66032787a146547bd37dd3fa763bee30c9ae379e82cda41c9e0399ce3dd7d9777cd6509bdec6df5e2a378ec8858fba6118db27d07c8e9c7e0a5bc4f067c6d49a29a17f5da0703c8a4055cfc84792ce582b8c245df82989c5815235e486e35e1b1772e737e84b9ade23c5b1b6968e27dafc59925e49db0a56601101d500a6ba63b5f01a67ddb435661ee2974ed3b9049ae97892c4e", @ANYRES16=r7, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000340)={&(0x7f0000000240), 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x48, r7, 0x100, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x1, 0x0}}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x6}]}, 0x48}, 0x1, 0x0, 0x0, 0x4040}, 0xc000) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000480)={&(0x7f0000000400)={0x48, 0x0, 0x8, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x48}, 0x1, 0x0, 0x0, 0x4048010}, 0x8000004) (async) syz_init_net_socket$x25(0x9, 0x5, 0x0) (async) [ 1331.993949] nbd: must specify a size in bytes for the device [ 1332.021136] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:33 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000440)={&(0x7f0000000500)={0x48, r8, 0x400, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}]}, 0x48}, 0x1, 0x0, 0x0, 0x4}, 0x801) (async) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x2c, r4, 0x4, 0x70bd26, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x24}]}, 0x2c}, 0x1, 0x0, 0x0, 0x800}, 0x20000000) (async) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000100)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x240a0}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, 0x0, 0x10, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000}, 0x810) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r9, @ANYBLOB="190000000f1aab67219ffa7cca00840f00000000800000000200"], 0x1c}}, 0x0) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r10) 04:57:33 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) times(&(0x7f00000002c0)) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="6400c093", @ANYRES16=r2, @ANYBLOB="00080000000000000000010000000c00060000000000000000000c000300ff0f0000000000807bff040000000000f87f000008000100000000000000030001800000000000000c000400fd0000000000000000000a006e626400"], 0x64}}, 0x8004) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADD(r4, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000140)={&(0x7f0000000200)={0x7c, r5, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}]}, 0x7c}}, 0x4000000) 04:57:33 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) (rerun: 32) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x38, r6, 0x200, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x0, 0x0}}}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000000}, 0xc8855) 04:57:33 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = socket$inet_sctp(0x2, 0x5, 0x84) getsockopt$inet_sctp_SCTP_HMAC_IDENT(r2, 0x84, 0x16, &(0x7f0000000640)={0x3, [0x40, 0x1, 0x29]}, &(0x7f0000000680)=0xa) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x14, r4, 0x200, 0x70bd2b, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x40000}, 0x8000000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x38, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x38}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000500)=ANY=[@ANYBLOB="3b00000087b1de0455827ccc78b84de2c2a522d084d3d18111b19f61e392d8ef05455519333fd67dd3998cc3714c4924ee7bb183b52713bc2586abe62813f7011fb3597478438fa053de8294f5d9cb0a897a0271b6c66032787a146547bd37dd3fa763bee30c9ae379e82cda41c9e0399ce3dd7d9777cd6509bdec6df5e2a378ec8858fba6118db27d07c8e9c7e0a5bc4f067c6d49a29a17f5da0703c8a4055cfc84792ce582b8c245df82989c5815235e486e35e1b1772e737e84b9ade23c5b1b6968e27dafc59925e49db0a56601101d500a6ba63b5f01a67ddb435661ee2974ed3b9049ae97892c4e", @ANYRES16=r7, @ANYBLOB="010000000000000000000600000008000c00000000000d0001006e657464657673696d000000"], 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000340)={&(0x7f0000000240), 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x48, r7, 0x100, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @initdev={0xac, 0x1e, 0x1, 0x0}}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x6}]}, 0x48}, 0x1, 0x0, 0x0, 0x4040}, 0xc000) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f00000004c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000480)={&(0x7f0000000400)={0x48, 0x0, 0x8, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @local}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x48}, 0x1, 0x0, 0x0, 0x4048010}, 0x8000004) (async) syz_init_net_socket$x25(0x9, 0x5, 0x0) [ 1332.115153] nbd: must specify a size in bytes for the device [ 1332.144777] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:33 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_BTF_GET_NEXT_ID(0x17, &(0x7f0000000000)={0x7}, 0x8) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:33 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) times(&(0x7f00000002c0)) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="6400c093", @ANYRES16=r2, @ANYBLOB="00080000000000000000010000000c00060000000000000000000c000300ff0f0000000000807bff040000000000f87f000008000100000000000000030001800000000000000c000400fd0000000000000000000a006e626400"], 0x64}}, 0x8004) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADD(r4, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000140)={&(0x7f0000000200)={0x7c, r5, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}]}, 0x7c}}, 0x4000000) 04:57:33 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, 0x0, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x30}, 0x1, 0x0, 0x0, 0x20008010}, 0x4000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_VERSION(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, 0x0, 0x400, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2={0xfc, 0x2, '\x00', 0x1}}]}, 0x30}, 0x1, 0x0, 0x0, 0x20008010}, 0x4000) (async) 04:57:33 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000440)={&(0x7f0000000500)={0x48, r8, 0x400, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}]}, 0x48}, 0x1, 0x0, 0x0, 0x4}, 0x801) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x2c, r4, 0x4, 0x70bd26, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x24}]}, 0x2c}, 0x1, 0x0, 0x0, 0x800}, 0x20000000) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000100)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x240a0}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, 0x0, 0x10, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000}, 0x810) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r9, @ANYBLOB="190000000f1aab67219ffa7cca00840f00000000800000000200"], 0x1c}}, 0x0) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000440)={&(0x7f0000000500)={0x48, r8, 0x400, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}]}, 0x48}, 0x1, 0x0, 0x0, 0x4}, 0x801) (async) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0x2c, r4, 0x4, 0x70bd26, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x24}]}, 0x2c}, 0x1, 0x0, 0x0, 0x800}, 0x20000000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000100)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x240a0}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x44, 0x0, 0x10, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1e}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000}, 0x810) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r9, @ANYBLOB="190000000f1aab67219ffa7cca00840f00000000800000000200"], 0x1c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000400), r10) (async) 04:57:33 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08800100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) [ 1332.212002] nbd: must specify a size in bytes for the device 04:57:33 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) times(&(0x7f00000002c0)) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="6400c093", @ANYRES16=r2, @ANYBLOB="00080000000000000000010000000c00060000000000000000000c000300ff0f0000000000807bff040000000000f87f000008000100000000000000030001800000000000000c000400fd0000000000000000000a006e626400"], 0x64}}, 0x8004) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADD(r4, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000140)={&(0x7f0000000200)={0x7c, r5, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}]}, 0x7c}}, 0x4000000) 04:57:33 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_BTF_GET_NEXT_ID(0x17, &(0x7f0000000000)={0x7}, 0x8) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:33 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08800100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:33 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, 0x0, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xbec8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x3c}, 0x1, 0x0, 0x0, 0x10}, 0x20000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) sendmsg$NLBL_MGMT_C_ADDDEF(r4, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x40, r3, 0x10, 0x70bd26, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x40}, 0x1, 0x0, 0x0, 0x8004000}, 0x0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r7) sendmsg$NLBL_MGMT_C_LISTDEF(r8, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r9, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r6, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x24, r9, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x24}, 0x1, 0x0, 0x0, 0x10}, 0x4800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:33 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) [ 1332.388715] nbd: socks must be embedded in a SOCK_ITEM attr [ 1332.415073] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:34 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x68, 0x0, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0x68}, 0x1, 0x0, 0x0, 0x1}, 0x40) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08800100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08800100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (async) 04:57:34 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) bpf$BPF_BTF_GET_NEXT_ID(0x17, &(0x7f0000000000)={0x7}, 0x8) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) bpf$BPF_BTF_GET_NEXT_ID(0x17, &(0x7f0000000000)={0x7}, 0x8) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) (async) 04:57:34 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:34 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, 0x0, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xbec8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x3c}, 0x1, 0x0, 0x0, 0x10}, 0x20000000) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async, rerun: 64) sendmsg$NLBL_MGMT_C_ADDDEF(r4, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x40, r3, 0x10, 0x70bd26, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x40}, 0x1, 0x0, 0x0, 0x8004000}, 0x0) (rerun: 64) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r7) sendmsg$NLBL_MGMT_C_LISTDEF(r8, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r9, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r6, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x24, r9, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x24}, 0x1, 0x0, 0x0, 0x10}, 0x4800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 3: getsockopt$WPAN_SECURITY_LEVEL(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000), &(0x7f0000000080)=0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x800, 0xfffffffd, 0x2, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1333.097376] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:34 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x68, 0x0, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0x68}, 0x1, 0x0, 0x0, 0x1}, 0x40) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 3: getsockopt$WPAN_SECURITY_LEVEL(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000), &(0x7f0000000080)=0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x800, 0xfffffffd, 0x2, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) getsockopt$WPAN_SECURITY_LEVEL(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000), &(0x7f0000000080)=0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x800, 0xfffffffd, 0x2, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:34 executing program 0: setsockopt$SO_RDS_TRANSPORT(0xffffffffffffffff, 0x114, 0x8, &(0x7f0000000000)=0x1, 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:34 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) (async) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x68, 0x0, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r2}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}]}, 0x68}, 0x1, 0x0, 0x0, 0x1}, 0x40) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:34 executing program 1: socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100de32d3448488abe0000000000004000780"], 0x24}}, 0x400) [ 1333.172753] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:34 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, 0x0, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xbec8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x3c}, 0x1, 0x0, 0x0, 0x10}, 0x20000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) sendmsg$NLBL_MGMT_C_ADDDEF(r4, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x40, r3, 0x10, 0x70bd26, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x40}, 0x1, 0x0, 0x0, 0x8004000}, 0x0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r7) sendmsg$NLBL_MGMT_C_LISTDEF(r8, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r9, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r6, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x24, r9, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x24}, 0x1, 0x0, 0x0, 0x10}, 0x4800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, 0x0, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xbec8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x3c}, 0x1, 0x0, 0x0, 0x10}, 0x20000000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r4, &(0x7f0000000480)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x40, r3, 0x10, 0x70bd26, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x40}, 0x1, 0x0, 0x0, 0x8004000}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r7) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r8, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r9, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r6, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x24, r9, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x24}, 0x1, 0x0, 0x0, 0x10}, 0x4800) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:34 executing program 3: getsockopt$WPAN_SECURITY_LEVEL(0xffffffffffffffff, 0x0, 0x2, &(0x7f0000000000), &(0x7f0000000080)=0x4) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x800, 0xfffffffd, 0x2, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:34 executing program 1: socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100de32d3448488abe0000000000004000780"], 0x24}}, 0x400) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100de32d3448488abe0000000000004000780"], 0x24}}, 0x400) (async) [ 1333.264008] nbd: must specify at least one socket 04:57:34 executing program 4: sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, 0x0, 0x800, 0x70bd2a, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000880) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r1, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x40000, 0x0) ioctl$DRM_IOCTL_GEM_FLINK(0xffffffffffffffff, 0xc008640a, &(0x7f0000000200)={0x0, 0x0}) ioctl$DRM_IOCTL_GEM_OPEN(r3, 0xc010640b, &(0x7f0000000240)={r4}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="1400a104b669ac53a6537a3f1281acc995dcb61a4fd9a6c7f307d0839adbc8a4ddcbda693bdbed1ad1a957bffcdc61cd762e00"/64, @ANYRES16=r7, @ANYBLOB="0100000000000000000001000000"], 0x14}}, 0x0) ioctl$SNDRV_PCM_IOCTL_READI_FRAMES(r3, 0x80184151, &(0x7f0000000540)={0x0, &(0x7f00000003c0)="06b7984264c95d6720bd07f84c44cbc4bb0b478550289325486ace5e88c6ea1f5ba13685", 0x24}) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r8, &(0x7f0000000440)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r9, 0x100, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40}, 0xc004) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="ff0f0000", @ANYRES16=r7, @ANYBLOB="00082dbd7000fbdbdf25010000000c000400400000000000000008000100000000000c00060001000000000000000c0002000100000000000080"], 0x40}, 0x1, 0x0, 0x0, 0x4044001}, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000480)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000140007800800010026201b59548232281ab1d2c58349634314de1cddb769c8983a2cc1df6bc24eeaa1c557e485a26a5321da6e868a4b8b13a2ad90bcf922157214c50ae50760ce93fb17ea467471706e6ff4135431424b6af21ef0d10d68a5bb758eb1a63661a23167e3ab8c81306b1054", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:34 executing program 0: setsockopt$SO_RDS_TRANSPORT(0xffffffffffffffff, 0x114, 0x8, &(0x7f0000000000)=0x1, 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:34 executing program 1: socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c0002004d2100de32d3448488abe0000000000004000780"], 0x24}}, 0x400) 04:57:34 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r5, 0x1}, 0x14}}, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x80, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xad}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x240408d0) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:34 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$ppp(0xffffffffffffff9c, &(0x7f0000000240), 0x480200, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, 0x0, 0x100, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000004000780"], 0x30}}, 0x0) 04:57:34 executing program 4: sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, 0x0, 0x800, 0x70bd2a, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000880) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r1, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 4: sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, 0x0, 0x800, 0x70bd2a, 0x25dfdbff, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000000}, 0x4000880) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r1, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:34 executing program 0: setsockopt$SO_RDS_TRANSPORT(0xffffffffffffffff, 0x114, 0x8, &(0x7f0000000000)=0x1, 0x4) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:34 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 64) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x40000, 0x0) (async, rerun: 64) ioctl$DRM_IOCTL_GEM_FLINK(0xffffffffffffffff, 0xc008640a, &(0x7f0000000200)={0x0, 0x0}) ioctl$DRM_IOCTL_GEM_OPEN(r3, 0xc010640b, &(0x7f0000000240)={r4}) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="1400a104b669ac53a6537a3f1281acc995dcb61a4fd9a6c7f307d0839adbc8a4ddcbda693bdbed1ad1a957bffcdc61cd762e00"/64, @ANYRES16=r7, @ANYBLOB="0100000000000000000001000000"], 0x14}}, 0x0) (async) ioctl$SNDRV_PCM_IOCTL_READI_FRAMES(r3, 0x80184151, &(0x7f0000000540)={0x0, &(0x7f00000003c0)="06b7984264c95d6720bd07f84c44cbc4bb0b478550289325486ace5e88c6ea1f5ba13685", 0x24}) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r8, &(0x7f0000000440)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r9, 0x100, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40}, 0xc004) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="ff0f0000", @ANYRES16=r7, @ANYBLOB="00082dbd7000fbdbdf25010000000c000400400000000000000008000100000000000c00060001000000000000000c0002000100000000000080"], 0x40}, 0x1, 0x0, 0x0, 0x4044001}, 0x10) (rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000480)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000140007800800010026201b59548232281ab1d2c58349634314de1cddb769c8983a2cc1df6bc24eeaa1c557e485a26a5321da6e868a4b8b13a2ad90bcf922157214c50ae50760ce93fb17ea467471706e6ff4135431424b6af21ef0d10d68a5bb758eb1a63661a23167e3ab8c81306b1054", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:34 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$ppp(0xffffffffffffff9c, &(0x7f0000000240), 0x480200, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, 0x0, 0x100, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x80) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000004000780"], 0x30}}, 0x0) 04:57:34 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r5, 0x1}, 0x14}}, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x80, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xad}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x240408d0) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r5, 0x1}, 0x14}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x80, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xad}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x240408d0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) [ 1333.529721] nbd: must specify at least one socket [ 1333.534943] nbd: must specify a size in bytes for the device [ 1333.549713] nbd: must specify at least one socket [ 1333.559287] nbd: couldn't find a device at index 3 [ 1333.564275] nbd: must specify at least one socket 04:57:34 executing program 4: setsockopt$RDS_CONG_MONITOR(0xffffffffffffffff, 0x114, 0x6, &(0x7f0000000000), 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:34 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x38, r3, 0x2, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5c}]}, 0x38}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) ioctl$DRM_IOCTL_SG_FREE(0xffffffffffffffff, 0x40106439, &(0x7f0000000000)={0xfffffffffffffffc}) bpf$BPF_BTF_GET_NEXT_ID(0x17, &(0x7f0000000080), 0x8) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x2c, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x18}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x2c}}, 0x84) 04:57:34 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$ppp(0xffffffffffffff9c, &(0x7f0000000240), 0x480200, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, 0x0, 0x100, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000004000780"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$ppp(0xffffffffffffff9c, &(0x7f0000000240), 0x480200, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x20, 0x0, 0x100, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x80) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000004000780"], 0x30}}, 0x0) (async) 04:57:34 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f00000001c0), 0x40000, 0x0) ioctl$DRM_IOCTL_GEM_FLINK(0xffffffffffffffff, 0xc008640a, &(0x7f0000000200)={0x0, 0x0}) ioctl$DRM_IOCTL_GEM_OPEN(r3, 0xc010640b, &(0x7f0000000240)={r4}) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="1400a104b669ac53a6537a3f1281acc995dcb61a4fd9a6c7f307d0839adbc8a4ddcbda693bdbed1ad1a957bffcdc61cd762e00"/64, @ANYRES16=r7, @ANYBLOB="0100000000000000000001000000"], 0x14}}, 0x0) (async) ioctl$SNDRV_PCM_IOCTL_READI_FRAMES(r3, 0x80184151, &(0x7f0000000540)={0x0, &(0x7f00000003c0)="06b7984264c95d6720bd07f84c44cbc4bb0b478550289325486ace5e88c6ea1f5ba13685", 0x24}) (async, rerun: 32) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000340), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r8, &(0x7f0000000440)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x2c, r9, 0x100, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40}, 0xc004) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="ff0f0000", @ANYRES16=r7, @ANYBLOB="00082dbd7000fbdbdf25010000000c000400400000000000000008000100000000000c00060001000000000000000c0002000100000000000080"], 0x40}, 0x1, 0x0, 0x0, 0x4044001}, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000480)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000140007800800010026201b59548232281ab1d2c58349634314de1cddb769c8983a2cc1df6bc24eeaa1c557e485a26a5321da6e868a4b8b13a2ad90bcf922157214c50ae50760ce93fb17ea467471706e6ff4135431424b6af21ef0d10d68a5bb758eb1a63661a23167e3ab8c81306b1054", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) [ 1333.658815] nbd: must specify a size in bytes for the device [ 1333.673870] nbd: must specify at least one socket [ 1333.682852] nbd: must specify at least one socket 04:57:34 executing program 4: setsockopt$RDS_CONG_MONITOR(0xffffffffffffffff, 0x114, 0x6, &(0x7f0000000000), 0x4) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:34 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x38, r3, 0x2, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5c}]}, 0x38}, 0x1, 0x0, 0x0, 0x40000}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) ioctl$DRM_IOCTL_SG_FREE(0xffffffffffffffff, 0x40106439, &(0x7f0000000000)={0xfffffffffffffffc}) (async) bpf$BPF_BTF_GET_NEXT_ID(0x17, &(0x7f0000000080), 0x8) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x2c, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x18}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x2c}}, 0x84) 04:57:34 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) [ 1333.812098] nbd: must specify at least one socket 04:57:34 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r5, 0x1}, 0x14}}, 0x0) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x80, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xad}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x240408d0) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r5, 0x1}, 0x14}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x80, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xad}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x240408d0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r7, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:34 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$PPPIOCSPASS(0xffffffffffffffff, 0x40107447, &(0x7f0000000340)={0x7, &(0x7f0000000300)=[{0x401, 0xf7, 0x3d, 0x1}, {0x5, 0x4, 0x1, 0x4}, {0x5, 0xff, 0x81, 0xfff}, {0x86, 0x9, 0xe8, 0x5}, {0x7ff, 0xbd, 0x5, 0x80000000}, {0x9, 0x3, 0x20, 0x5}, {0x9, 0x1, 0x5, 0xb53d}]}) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) ioctl$DRM_IOCTL_AGP_ALLOC(r2, 0xc0206434, &(0x7f0000000380)={0x1f, 0x0, 0x10000}) ioctl$DRM_IOCTL_AGP_UNBIND(r3, 0x40106437, &(0x7f00000003c0)={r4, 0x7cf0}) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x21a001, 0x0) r10 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) sendmsg$802154_dgram(r10, 0x0, 0x0) syz_open_dev$loop(&(0x7f0000000400), 0x401, 0x200800) getsockopt$WPAN_WANTLQI(r10, 0x0, 0x3, &(0x7f0000000280), &(0x7f00000002c0)=0x4) getsockopt$inet_sctp6_SCTP_NODELAY(r9, 0x84, 0x3, &(0x7f0000000200), &(0x7f0000000240)=0x4) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000004400078008000100", @ANYRES32=r2, @ANYBLOB="00000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYRES16=r9, @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYRESOCT=r8, @ANYRES32=r7, @ANYBLOB="164ccac3be02a06e75500104ea01bc0a8060c27363"], 0x58}, 0x1, 0x0, 0x0, 0x1}, 0x0) 04:57:35 executing program 4: setsockopt$RDS_CONG_MONITOR(0xffffffffffffffff, 0x114, 0x6, &(0x7f0000000000), 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1333.856014] nbd: must specify a size in bytes for the device 04:57:35 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x38, r3, 0x2, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5c}]}, 0x38}, 0x1, 0x0, 0x0, 0x40000}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) ioctl$DRM_IOCTL_SG_FREE(0xffffffffffffffff, 0x40106439, &(0x7f0000000000)={0xfffffffffffffffc}) bpf$BPF_BTF_GET_NEXT_ID(0x17, &(0x7f0000000080), 0x8) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x2c, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x18}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x2c}}, 0x84) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x38, r3, 0x2, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5c}]}, 0x38}, 0x1, 0x0, 0x0, 0x40000}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) ioctl$DRM_IOCTL_SG_FREE(0xffffffffffffffff, 0x40106439, &(0x7f0000000000)={0xfffffffffffffffc}) (async) bpf$BPF_BTF_GET_NEXT_ID(0x17, &(0x7f0000000080), 0x8) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x2c, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x18}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x2c}}, 0x84) (async) 04:57:35 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$PPPIOCSPASS(0xffffffffffffffff, 0x40107447, &(0x7f0000000340)={0x7, &(0x7f0000000300)=[{0x401, 0xf7, 0x3d, 0x1}, {0x5, 0x4, 0x1, 0x4}, {0x5, 0xff, 0x81, 0xfff}, {0x86, 0x9, 0xe8, 0x5}, {0x7ff, 0xbd, 0x5, 0x80000000}, {0x9, 0x3, 0x20, 0x5}, {0x9, 0x1, 0x5, 0xb53d}]}) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) ioctl$DRM_IOCTL_AGP_ALLOC(r2, 0xc0206434, &(0x7f0000000380)={0x1f, 0x0, 0x10000}) ioctl$DRM_IOCTL_AGP_UNBIND(r3, 0x40106437, &(0x7f00000003c0)={r4, 0x7cf0}) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x21a001, 0x0) (async) r10 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) sendmsg$802154_dgram(r10, 0x0, 0x0) syz_open_dev$loop(&(0x7f0000000400), 0x401, 0x200800) (async) getsockopt$WPAN_WANTLQI(r10, 0x0, 0x3, &(0x7f0000000280), &(0x7f00000002c0)=0x4) getsockopt$inet_sctp6_SCTP_NODELAY(r9, 0x84, 0x3, &(0x7f0000000200), &(0x7f0000000240)=0x4) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000004400078008000100", @ANYRES32=r2, @ANYBLOB="00000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYRES16=r9, @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYRESOCT=r8, @ANYRES32=r7, @ANYBLOB="164ccac3be02a06e75500104ea01bc0a8060c27363"], 0x58}, 0x1, 0x0, 0x0, 0x1}, 0x0) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="103e4ca8d5e25e7f7774e9bbb987c53c88e1010a1185a0978f6ae887ed308062ec5177d79229dbbdb5aa0b764ce2016d1f20930b459b893527e93965d8acdb1fec504c5bae776ec8a0ad77337dd9c4a8e416d692d604b46342775a3147c7806c9aa1bd43a19cf69e325fbba3ea9d220607631e645046040f5ae885fadedfb9e2eb6c3c494bfcf5c665fccf2ecb9643078ea29fa3bb45a015af2f2864f5", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x0) 04:57:35 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x1c, r2, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x400c010}, 0x8040) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000580), r3) sendmsg$NLBL_MGMT_C_ADDDEF(r0, &(0x7f0000000640)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000600)={&(0x7f00000005c0)={0x1c, r4, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}]}, 0x1c}}, 0x24000000) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x44226304}, 0xc, &(0x7f00000001c0)={&(0x7f00000003c0)={0x14, 0x0, 0x1, 0x70bd25, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x4004010) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000500)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000004c0)={&(0x7f0000000180)=ANY=[@ANYBLOB='\a\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="000428bd7000ffdbdf2507000000"], 0x14}, 0x1, 0x0, 0x0, 0x408c0}, 0x8000) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="159423d245a7bc243e723061723c87e9d5ac7293ff0d8185e6b8c4244978229636b3f37a81ad2b47c77fd24d99188dcaed5483a7941b63d111bc4d5a14db9355a7d3c26475eb2dfdf6e4137295d3338c9a", @ANYRES16=r1, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1333.933975] nbd: must specify at least one socket [ 1333.953479] nbd: couldn't find a device at index 3 04:57:35 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x54, 0x0, 0x4, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x54}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:35 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB="24ebde5a", @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000210000000000000c0002000300"/38], 0x2c}}, 0x0) getsockopt$CAN_RAW_RECV_OWN_MSGS(0xffffffffffffffff, 0x65, 0x4, &(0x7f0000000080), &(0x7f0000000140)=0x4) 04:57:35 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$PPPIOCSPASS(0xffffffffffffffff, 0x40107447, &(0x7f0000000340)={0x7, &(0x7f0000000300)=[{0x401, 0xf7, 0x3d, 0x1}, {0x5, 0x4, 0x1, 0x4}, {0x5, 0xff, 0x81, 0xfff}, {0x86, 0x9, 0xe8, 0x5}, {0x7ff, 0xbd, 0x5, 0x80000000}, {0x9, 0x3, 0x20, 0x5}, {0x9, 0x1, 0x5, 0xb53d}]}) (async, rerun: 32) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (rerun: 32) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) ioctl$DRM_IOCTL_AGP_ALLOC(r2, 0xc0206434, &(0x7f0000000380)={0x1f, 0x0, 0x10000}) ioctl$DRM_IOCTL_AGP_UNBIND(r3, 0x40106437, &(0x7f00000003c0)={r4, 0x7cf0}) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) (async, rerun: 64) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (rerun: 64) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r5, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x21a001, 0x0) r10 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) sendmsg$802154_dgram(r10, 0x0, 0x0) syz_open_dev$loop(&(0x7f0000000400), 0x401, 0x200800) (async) getsockopt$WPAN_WANTLQI(r10, 0x0, 0x3, &(0x7f0000000280), &(0x7f00000002c0)=0x4) (async) getsockopt$inet_sctp6_SCTP_NODELAY(r9, 0x84, 0x3, &(0x7f0000000200), &(0x7f0000000240)=0x4) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="21060000000000000000010000004400078008000100", @ANYRES32=r2, @ANYBLOB="00000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYRES16=r9, @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32=r6, @ANYRESOCT=r8, @ANYRES32=r7, @ANYBLOB="164ccac3be02a06e75500104ea01bc0a8060c27363"], 0x58}, 0x1, 0x0, 0x0, 0x1}, 0x0) 04:57:35 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$kvm(0xffffffffffffff9c, &(0x7f0000000b80), 0x307182, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106fade610106b20f4c0007800894778cadb6116841ff8e7a567ca0a20400000000000022a936f9661ea25713a696d515601a78ff61407ec5e7e6a12c06b6a43a06873ec6479f0fe09f1b36b3d66374c10ba8f9f9f1206c08ee93a371641b4f85f3910fd53cc5868f44d97300"/123, @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) ioctl$KVM_CREATE_VM(r3, 0xae01, 0x0) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="103e4ca8d5e25e7f7774e9bbb987c53c88e1010a1185a0978f6ae887ed308062ec5177d79229dbbdb5aa0b764ce2016d1f20930b459b893527e93965d8acdb1fec504c5bae776ec8a0ad77337dd9c4a8e416d692d604b46342775a3147c7806c9aa1bd43a19cf69e325fbba3ea9d220607631e645046040f5ae885fadedfb9e2eb6c3c494bfcf5c665fccf2ecb9643078ea29fa3bb45a015af2f2864f5", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="103e4ca8d5e25e7f7774e9bbb987c53c88e1010a1185a0978f6ae887ed308062ec5177d79229dbbdb5aa0b764ce2016d1f20930b459b893527e93965d8acdb1fec504c5bae776ec8a0ad77337dd9c4a8e416d692d604b46342775a3147c7806c9aa1bd43a19cf69e325fbba3ea9d220607631e645046040f5ae885fadedfb9e2eb6c3c494bfcf5c665fccf2ecb9643078ea29fa3bb45a015af2f2864f5", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x0) (async) 04:57:35 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB="24ebde5a", @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000210000000000000c0002000300"/38], 0x2c}}, 0x0) getsockopt$CAN_RAW_RECV_OWN_MSGS(0xffffffffffffffff, 0x65, 0x4, &(0x7f0000000080), &(0x7f0000000140)=0x4) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB="24ebde5a", @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000210000000000000c0002000300"/38], 0x2c}}, 0x0) (async) getsockopt$CAN_RAW_RECV_OWN_MSGS(0xffffffffffffffff, 0x65, 0x4, &(0x7f0000000080), &(0x7f0000000140)=0x4) (async) 04:57:35 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x1c, r2, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x400c010}, 0x8040) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000580), r3) sendmsg$NLBL_MGMT_C_ADDDEF(r0, &(0x7f0000000640)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000600)={&(0x7f00000005c0)={0x1c, r4, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}]}, 0x1c}}, 0x24000000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x44226304}, 0xc, &(0x7f00000001c0)={&(0x7f00000003c0)={0x14, 0x0, 0x1, 0x70bd25, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x4004010) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000500)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000004c0)={&(0x7f0000000180)=ANY=[@ANYBLOB='\a\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="000428bd7000ffdbdf2507000000"], 0x14}, 0x1, 0x0, 0x0, 0x408c0}, 0x8000) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="159423d245a7bc243e723061723c87e9d5ac7293ff0d8185e6b8c4244978229636b3f37a81ad2b47c77fd24d99188dcaed5483a7941b63d111bc4d5a14db9355a7d3c26475eb2dfdf6e4137295d3338c9a", @ANYRES16=r1, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) 04:57:35 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x54, 0x0, 0x4, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x54}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (rerun: 32) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="103e4ca8d5e25e7f7774e9bbb987c53c88e1010a1185a0978f6ae887ed308062ec5177d79229dbbdb5aa0b764ce2016d1f20930b459b893527e93965d8acdb1fec504c5bae776ec8a0ad77337dd9c4a8e416d692d604b46342775a3147c7806c9aa1bd43a19cf69e325fbba3ea9d220607631e645046040f5ae885fadedfb9e2eb6c3c494bfcf5c665fccf2ecb9643078ea29fa3bb45a015af2f2864f5", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x0) 04:57:35 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$kvm(0xffffffffffffff9c, &(0x7f0000000b80), 0x307182, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106fade610106b20f4c0007800894778cadb6116841ff8e7a567ca0a20400000000000022a936f9661ea25713a696d515601a78ff61407ec5e7e6a12c06b6a43a06873ec6479f0fe09f1b36b3d66374c10ba8f9f9f1206c08ee93a371641b4f85f3910fd53cc5868f44d97300"/123, @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) ioctl$KVM_CREATE_VM(r3, 0xae01, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$kvm(0xffffffffffffff9c, &(0x7f0000000b80), 0x307182, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106fade610106b20f4c0007800894778cadb6116841ff8e7a567ca0a20400000000000022a936f9661ea25713a696d515601a78ff61407ec5e7e6a12c06b6a43a06873ec6479f0fe09f1b36b3d66374c10ba8f9f9f1206c08ee93a371641b4f85f3910fd53cc5868f44d97300"/123, @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) ioctl$KVM_CREATE_VM(r3, 0xae01, 0x0) (async) 04:57:35 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="30000081", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:35 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTALL(r3, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0x1c, r2, 0x100, 0x70bd27, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x400c010}, 0x8040) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000580), r3) sendmsg$NLBL_MGMT_C_ADDDEF(r0, &(0x7f0000000640)={&(0x7f0000000540)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000600)={&(0x7f00000005c0)={0x1c, r4, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}]}, 0x1c}}, 0x24000000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x44226304}, 0xc, &(0x7f00000001c0)={&(0x7f00000003c0)={0x14, 0x0, 0x1, 0x70bd25, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x4004010) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000500)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000004c0)={&(0x7f0000000180)=ANY=[@ANYBLOB='\a\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="000428bd7000ffdbdf2507000000"], 0x14}, 0x1, 0x0, 0x0, 0x408c0}, 0x8000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000080)=ANY=[@ANYBLOB="159423d245a7bc243e723061723c87e9d5ac7293ff0d8185e6b8c4244978229636b3f37a81ad2b47c77fd24d99188dcaed5483a7941b63d111bc4d5a14db9355a7d3c26475eb2dfdf6e4137295d3338c9a", @ANYRES16=r1, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) (rerun: 64) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x30}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x5}, 0x40) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:35 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB="24ebde5a", @ANYRES16=r2, @ANYBLOB="2106000000000000000001000000210000000000000c0002000300"/38], 0x2c}}, 0x0) (async, rerun: 32) getsockopt$CAN_RAW_RECV_OWN_MSGS(0xffffffffffffffff, 0x65, 0x4, &(0x7f0000000080), &(0x7f0000000140)=0x4) (rerun: 32) 04:57:35 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="30000081", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="30000081", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) (async) 04:57:35 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$kvm(0xffffffffffffff9c, &(0x7f0000000b80), 0x307182, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106fade610106b20f4c0007800894778cadb6116841ff8e7a567ca0a20400000000000022a936f9661ea25713a696d515601a78ff61407ec5e7e6a12c06b6a43a06873ec6479f0fe09f1b36b3d66374c10ba8f9f9f1206c08ee93a371641b4f85f3910fd53cc5868f44d97300"/123, @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) ioctl$KVM_CREATE_VM(r3, 0xae01, 0x0) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x30}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x5}, 0x40) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x30}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x5}, 0x40) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:35 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x54, 0x0, 0x4, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x54}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x54, 0x0, 0x4, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x54}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:35 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c000200ff404efc03d31048667f9b6ca82078a37aa64947579d77a5be652a3f60d8d6cd9ceac01536c6904367b07d9265c77de0d47be0b69d6a10135579ac8a972e0a00518dc3b5a69687acb1fcaa6fcedec1cebd8f5ebcda1176"], 0x24}}, 0x0) 04:57:35 executing program 0: r0 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CONG_MONITOR(r0, 0x114, 0x6, &(0x7f0000000000)=0x1, 0x4) 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$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:35 executing program 3: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x7, 0x408400) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r0, 0xc0984124, &(0x7f0000000080)) 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$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r3, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 04:57:35 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB="30000081", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, 0x0, 0x200, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x30}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x5}, 0x40) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) getsockopt$X25_QBITINCL(0xffffffffffffffff, 0x106, 0x1, &(0x7f00000008c0), &(0x7f0000000900)=0x4) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) recvmsg$can_raw(r4, &(0x7f0000000880)={&(0x7f0000000480)=@ieee802154={0x24, @short}, 0x80, &(0x7f00000000c0)=[{&(0x7f0000000500)=""/205, 0xcd}, {&(0x7f0000000600)=""/191, 0xbf}, {&(0x7f00000006c0)=""/236, 0xec}], 0x3, &(0x7f00000007c0)=""/180, 0xb4}, 0x2000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x70, 0x0, 0x8, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '][/{\xc9'}]}, 0x70}, 0x1, 0x0, 0x0, 0x4001}, 0x8001) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x100, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) ioctl$SNDRV_PCM_IOCTL_PAUSE(r7, 0x40044145, &(0x7f0000000440)=0xa000) r8 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r8, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000940)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32=r8, @ANYRESDEC, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x81) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTALL(r9, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4804}, 0x20000014) [ 1334.414668] nla_parse: 76 callbacks suppressed [ 1334.414675] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1334.450314] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 04:57:35 executing program 3: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x7, 0x408400) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r0, 0xc0984124, &(0x7f0000000080)) 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$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r3, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000000), 0x7, 0x408400) (async) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r0, 0xc0984124, &(0x7f0000000080)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r3, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:35 executing program 4: ioctl$SNDRV_PCM_IOCTL_TTSTAMP(0xffffffffffffffff, 0x40044103, &(0x7f0000000000)=0x1) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x2180, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)={0x68, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x68}}, 0x0) 04:57:35 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c000200ff404efc03d31048667f9b6ca82078a37aa64947579d77a5be652a3f60d8d6cd9ceac01536c6904367b07d9265c77de0d47be0b69d6a10135579ac8a972e0a00518dc3b5a69687acb1fcaa6fcedec1cebd8f5ebcda1176"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c000200ff404efc03d31048667f9b6ca82078a37aa64947579d77a5be652a3f60d8d6cd9ceac01536c6904367b07d9265c77de0d47be0b69d6a10135579ac8a972e0a00518dc3b5a69687acb1fcaa6fcedec1cebd8f5ebcda1176"], 0x24}}, 0x0) (async) 04:57:35 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000580)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000540)={&(0x7f0000000500)={0x34, r4, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x34}, 0x1, 0x0, 0x0, 0x8084}, 0x44000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000380)=ANY=[@ANYBLOB="8e30010000", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r5, &(0x7f0000000700)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000006c0)={&(0x7f0000000600)={0xa0, r8, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0xa0}, 0x1, 0x0, 0x0, 0x4010800}, 0x10004000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000300)={&(0x7f00000003c0)=ANY=[@ANYBLOB="0000000020c8e41207cc309397a33bb22463910fc15a588be4a4568fbeb39b4311f5dc67dcb658791ea54edc9de0f09a7e188eb3b01a7f48694ea9e0ed90dfb9acdb6679107f05597c0ab2d9ebc5839c4bd2a07c9705402830e3df291a82b69b5d6b8b9260076e680968b3d7552c450091cacac9e22b0669aa99d9422395fb17a228ca737383fc79d106f08830e7b5ad06daa44cb4a4e6a8a9a4a5d2575b180a857f0ea096bd9cad7ea3b749d5ce06215bededb1dbf53f5ff157c0dd04e9003df1", @ANYRES16=r2, @ANYBLOB="08002bbd7000fcdbdf25010000000c000400d6fe0000000000000c00040006000000000000000c000300200000000000000004000a000c00060003000000000000000c00078008000100", @ANYRES32, @ANYBLOB="080001000000000020000a002f7379732f6b65726e656c2f64656275672f73796e632f696e666f00"], 0x7c}}, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x2208c0, 0x0) ioctl$SNDRV_PCM_IOCTL_HW_PARAMS_OLD(r9, 0xc1004111, &(0x7f0000000180)={0x7f, [0x6, 0x3f, 0x629], [{0x5, 0x1, 0x0, 0x0, 0x1}, {0x100, 0x2, 0x1, 0x1, 0x0, 0x1}, {0x1000, 0x7f, 0x1, 0x0, 0x1, 0x1}, {0x5d, 0x1, 0x0, 0x1, 0x1}, {0x3, 0x7fffffff, 0x1}, {0x313c, 0xfffffffe, 0x1, 0x0, 0x1}, {0x5, 0x7, 0x1, 0x0, 0x0, 0x1}, {0x3, 0x5, 0x1}, {0x5, 0xe6}, {0x1, 0x2, 0x1}, {0x5, 0x1, 0x0, 0x0, 0x0, 0x1}, {0x0, 0x9, 0x1, 0x0, 0x0, 0x1}], 0x7}) connect$rds(r9, &(0x7f0000000080)={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x3f}}, 0x10) 04:57:35 executing program 0: r0 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CONG_MONITOR(r0, 0x114, 0x6, &(0x7f0000000000)=0x1, 0x4) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CONG_MONITOR(r0, 0x114, 0x6, &(0x7f0000000000)=0x1, 0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) [ 1334.460437] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 1334.478386] nbd: must specify at least one socket 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) getsockopt$X25_QBITINCL(0xffffffffffffffff, 0x106, 0x1, &(0x7f00000008c0), &(0x7f0000000900)=0x4) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) recvmsg$can_raw(r4, &(0x7f0000000880)={&(0x7f0000000480)=@ieee802154={0x24, @short}, 0x80, &(0x7f00000000c0)=[{&(0x7f0000000500)=""/205, 0xcd}, {&(0x7f0000000600)=""/191, 0xbf}, {&(0x7f00000006c0)=""/236, 0xec}], 0x3, &(0x7f00000007c0)=""/180, 0xb4}, 0x2000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x70, 0x0, 0x8, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '][/{\xc9'}]}, 0x70}, 0x1, 0x0, 0x0, 0x4001}, 0x8001) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x100, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) ioctl$SNDRV_PCM_IOCTL_PAUSE(r7, 0x40044145, &(0x7f0000000440)=0xa000) r8 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r8, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000940)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32=r8, @ANYRESDEC, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x81) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTALL(r9, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4804}, 0x20000014) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) getsockopt$X25_QBITINCL(0xffffffffffffffff, 0x106, 0x1, &(0x7f00000008c0), &(0x7f0000000900)=0x4) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) recvmsg$can_raw(r4, &(0x7f0000000880)={&(0x7f0000000480)=@ieee802154={0x24, @short}, 0x80, &(0x7f00000000c0)=[{&(0x7f0000000500)=""/205, 0xcd}, {&(0x7f0000000600)=""/191, 0xbf}, {&(0x7f00000006c0)=""/236, 0xec}], 0x3, &(0x7f00000007c0)=""/180, 0xb4}, 0x2000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x70, 0x0, 0x8, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '][/{\xc9'}]}, 0x70}, 0x1, 0x0, 0x0, 0x4001}, 0x8001) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x100, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) (async) ioctl$SNDRV_PCM_IOCTL_PAUSE(r7, 0x40044145, &(0x7f0000000440)=0xa000) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r8, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000940)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32=r8, @ANYRESDEC, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x81) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_LISTALL(r9, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4804}, 0x20000014) (async) 04:57:35 executing program 4: ioctl$SNDRV_PCM_IOCTL_TTSTAMP(0xffffffffffffffff, 0x40044103, &(0x7f0000000000)=0x1) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x2180, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)={0x68, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x68}}, 0x0) ioctl$SNDRV_PCM_IOCTL_TTSTAMP(0xffffffffffffffff, 0x40044103, &(0x7f0000000000)=0x1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x2180, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)={0x68, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x68}}, 0x0) (async) [ 1334.552044] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1334.572628] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1334.583698] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 1334.597091] nbd: must specify at least one socket 04:57:35 executing program 4: ioctl$SNDRV_PCM_IOCTL_TTSTAMP(0xffffffffffffffff, 0x40044103, &(0x7f0000000000)=0x1) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x2180, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)={0x68, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x68}}, 0x0) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) getsockopt$X25_QBITINCL(0xffffffffffffffff, 0x106, 0x1, &(0x7f00000008c0), &(0x7f0000000900)=0x4) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) recvmsg$can_raw(r4, &(0x7f0000000880)={&(0x7f0000000480)=@ieee802154={0x24, @short}, 0x80, &(0x7f00000000c0)=[{&(0x7f0000000500)=""/205, 0xcd}, {&(0x7f0000000600)=""/191, 0xbf}, {&(0x7f00000006c0)=""/236, 0xec}], 0x3, &(0x7f00000007c0)=""/180, 0xb4}, 0x2000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x70, 0x0, 0x8, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '][/{\xc9'}]}, 0x70}, 0x1, 0x0, 0x0, 0x4001}, 0x8001) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x100, 0x0) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) ioctl$SNDRV_PCM_IOCTL_PAUSE(r7, 0x40044145, &(0x7f0000000440)=0xa000) r8 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r8, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000940)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32=r8, @ANYRESDEC, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x81) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTALL(r9, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4804}, 0x20000014) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) getsockopt$X25_QBITINCL(0xffffffffffffffff, 0x106, 0x1, &(0x7f00000008c0), &(0x7f0000000900)=0x4) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) recvmsg$can_raw(r4, &(0x7f0000000880)={&(0x7f0000000480)=@ieee802154={0x24, @short}, 0x80, &(0x7f00000000c0)=[{&(0x7f0000000500)=""/205, 0xcd}, {&(0x7f0000000600)=""/191, 0xbf}, {&(0x7f00000006c0)=""/236, 0xec}], 0x3, &(0x7f00000007c0)=""/180, 0xb4}, 0x2000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000002c0)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x70, 0x0, 0x8, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x9, 0xa, '][/{\xc9'}]}, 0x70}, 0x1, 0x0, 0x0, 0x4001}, 0x8001) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000080), 0x100, 0x0) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) (async) ioctl$SNDRV_PCM_IOCTL_PAUSE(r7, 0x40044145, &(0x7f0000000440)=0xa000) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r8, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000940)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32=r8, @ANYRESDEC, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x81) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_LISTALL(r9, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4804}, 0x20000014) (async) [ 1334.602485] nbd: couldn't find a device at index 3 [ 1334.609105] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1334.622626] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1334.638257] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 04:57:35 executing program 0: r0 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CONG_MONITOR(r0, 0x114, 0x6, &(0x7f0000000000)=0x1, 0x4) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CONG_MONITOR(r0, 0x114, 0x6, &(0x7f0000000000)=0x1, 0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r3, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) [ 1334.672293] nbd: must specify at least one socket 04:57:35 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x34, r3, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xb6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0x34}, 0x1, 0x0, 0x0, 0x4000}, 0x20008000) 04:57:35 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c000200ff404efc03d31048667f9b6ca82078a37aa64947579d77a5be652a3f60d8d6cd9ceac01536c6904367b07d9265c77de0d47be0b69d6a10135579ac8a972e0a00518dc3b5a69687acb1fcaa6fcedec1cebd8f5ebcda1176"], 0x24}}, 0x0) 04:57:35 executing program 3: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x7, 0x408400) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r0, 0xc0984124, &(0x7f0000000080)) 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$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r3, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000000), 0x7, 0x408400) (async) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r0, 0xc0984124, &(0x7f0000000080)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r3, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) [ 1334.693939] nbd: couldn't find a device at index 3 04:57:35 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000580)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000540)={&(0x7f0000000500)={0x34, r4, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x34}, 0x1, 0x0, 0x0, 0x8084}, 0x44000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000380)=ANY=[@ANYBLOB="8e30010000", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(r5, &(0x7f0000000700)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000006c0)={&(0x7f0000000600)={0xa0, r8, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0xa0}, 0x1, 0x0, 0x0, 0x4010800}, 0x10004000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000300)={&(0x7f00000003c0)=ANY=[@ANYBLOB="0000000020c8e41207cc309397a33bb22463910fc15a588be4a4568fbeb39b4311f5dc67dcb658791ea54edc9de0f09a7e188eb3b01a7f48694ea9e0ed90dfb9acdb6679107f05597c0ab2d9ebc5839c4bd2a07c9705402830e3df291a82b69b5d6b8b9260076e680968b3d7552c450091cacac9e22b0669aa99d9422395fb17a228ca737383fc79d106f08830e7b5ad06daa44cb4a4e6a8a9a4a5d2575b180a857f0ea096bd9cad7ea3b749d5ce06215bededb1dbf53f5ff157c0dd04e9003df1", @ANYRES16=r2, @ANYBLOB="08002bbd7000fcdbdf25010000000c000400d6fe0000000000000c00040006000000000000000c000300200000000000000004000a000c00060003000000000000000c00078008000100", @ANYRES32, @ANYBLOB="080001000000000020000a002f7379732f6b65726e656c2f64656275672f73796e632f696e666f00"], 0x7c}}, 0x0) (async) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x2208c0, 0x0) ioctl$SNDRV_PCM_IOCTL_HW_PARAMS_OLD(r9, 0xc1004111, &(0x7f0000000180)={0x7f, [0x6, 0x3f, 0x629], [{0x5, 0x1, 0x0, 0x0, 0x1}, {0x100, 0x2, 0x1, 0x1, 0x0, 0x1}, {0x1000, 0x7f, 0x1, 0x0, 0x1, 0x1}, {0x5d, 0x1, 0x0, 0x1, 0x1}, {0x3, 0x7fffffff, 0x1}, {0x313c, 0xfffffffe, 0x1, 0x0, 0x1}, {0x5, 0x7, 0x1, 0x0, 0x0, 0x1}, {0x3, 0x5, 0x1}, {0x5, 0xe6}, {0x1, 0x2, 0x1}, {0x5, 0x1, 0x0, 0x0, 0x0, 0x1}, {0x0, 0x9, 0x1, 0x0, 0x0, 0x1}], 0x7}) (async) connect$rds(r9, &(0x7f0000000080)={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x3f}}, 0x10) 04:57:35 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) ioctl$SIOCX25SCAUSEDIAG(0xffffffffffffffff, 0x89ec, &(0x7f0000000080)={0x9, 0xff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:35 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/pid\x00') sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) [ 1334.751168] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1334.779185] nbd: must specify at least one socket 04:57:35 executing program 0: setsockopt$CAN_RAW_JOIN_FILTERS(0xffffffffffffffff, 0x65, 0x6, &(0x7f0000000000), 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:36 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x40, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '%+\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x15}}]}, 0x40}, 0x1, 0x0, 0x0, 0x40840}, 0x40810) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="f01a73ab480000", @ANYRES16=r6, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x4004}, 0x0) 04:57:36 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/pid\x00') sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:36 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) ioctl$SIOCX25SCAUSEDIAG(0xffffffffffffffff, 0x89ec, &(0x7f0000000080)={0x9, 0xff}) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) [ 1334.834194] nbd: couldn't find a device at index 3 [ 1334.845830] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:36 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x34, r3, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xb6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0x34}, 0x1, 0x0, 0x0, 0x4000}, 0x20008000) 04:57:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000580)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000540)={&(0x7f0000000500)={0x34, r4, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x34}, 0x1, 0x0, 0x0, 0x8084}, 0x44000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000380)=ANY=[@ANYBLOB="8e30010000", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(r5, &(0x7f0000000700)={&(0x7f00000005c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000006c0)={&(0x7f0000000600)={0xa0, r8, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0xa0}, 0x1, 0x0, 0x0, 0x4010800}, 0x10004000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000340)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000300)={&(0x7f00000003c0)=ANY=[@ANYBLOB="0000000020c8e41207cc309397a33bb22463910fc15a588be4a4568fbeb39b4311f5dc67dcb658791ea54edc9de0f09a7e188eb3b01a7f48694ea9e0ed90dfb9acdb6679107f05597c0ab2d9ebc5839c4bd2a07c9705402830e3df291a82b69b5d6b8b9260076e680968b3d7552c450091cacac9e22b0669aa99d9422395fb17a228ca737383fc79d106f08830e7b5ad06daa44cb4a4e6a8a9a4a5d2575b180a857f0ea096bd9cad7ea3b749d5ce06215bededb1dbf53f5ff157c0dd04e9003df1", @ANYRES16=r2, @ANYBLOB="08002bbd7000fcdbdf25010000000c000400d6fe0000000000000c00040006000000000000000c000300200000000000000004000a000c00060003000000000000000c00078008000100", @ANYRES32, @ANYBLOB="080001000000000020000a002f7379732f6b65726e656c2f64656275672f73796e632f696e666f00"], 0x7c}}, 0x0) r9 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x2208c0, 0x0) ioctl$SNDRV_PCM_IOCTL_HW_PARAMS_OLD(r9, 0xc1004111, &(0x7f0000000180)={0x7f, [0x6, 0x3f, 0x629], [{0x5, 0x1, 0x0, 0x0, 0x1}, {0x100, 0x2, 0x1, 0x1, 0x0, 0x1}, {0x1000, 0x7f, 0x1, 0x0, 0x1, 0x1}, {0x5d, 0x1, 0x0, 0x1, 0x1}, {0x3, 0x7fffffff, 0x1}, {0x313c, 0xfffffffe, 0x1, 0x0, 0x1}, {0x5, 0x7, 0x1, 0x0, 0x0, 0x1}, {0x3, 0x5, 0x1}, {0x5, 0xe6}, {0x1, 0x2, 0x1}, {0x5, 0x1, 0x0, 0x0, 0x0, 0x1}, {0x0, 0x9, 0x1, 0x0, 0x0, 0x1}], 0x7}) connect$rds(r9, &(0x7f0000000080)={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x3f}}, 0x10) 04:57:36 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x40, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '%+\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x15}}]}, 0x40}, 0x1, 0x0, 0x0, 0x40840}, 0x40810) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="f01a73ab480000", @ANYRES16=r6, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x4004}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r2) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x40, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '%+\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x15}}]}, 0x40}, 0x1, 0x0, 0x0, 0x40840}, 0x40810) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="f01a73ab480000", @ANYRES16=r6, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x4004}, 0x0) (async) 04:57:36 executing program 0: setsockopt$CAN_RAW_JOIN_FILTERS(0xffffffffffffffff, 0x65, 0x6, &(0x7f0000000000), 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) setsockopt$CAN_RAW_JOIN_FILTERS(0xffffffffffffffff, 0x65, 0x6, &(0x7f0000000000), 0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) 04:57:36 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x34, r3, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xb6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0x34}, 0x1, 0x0, 0x0, 0x4000}, 0x20008000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x34, r3, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xb6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}]}, 0x34}, 0x1, 0x0, 0x0, 0x4000}, 0x20008000) (async) 04:57:36 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) ioctl$SIOCX25SCAUSEDIAG(0xffffffffffffffff, 0x89ec, &(0x7f0000000080)={0x9, 0xff}) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:36 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) syz_open_procfs$namespace(0x0, &(0x7f0000000040)='ns/pid\x00') (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) [ 1335.033975] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:36 executing program 0: setsockopt$CAN_RAW_JOIN_FILTERS(0xffffffffffffffff, 0x65, 0x6, &(0x7f0000000000), 0x4) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="00040300000000000000010000000c00060001000000000000000c00020000000000000000400c0006000000000000000000"], 0x38}}, 0x0) 04:57:36 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000003c0)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000102}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x34, 0x0, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10000}]}, 0x34}, 0x1, 0x0, 0x0, 0x24000045}, 0x4080002) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, 0x0, 0x300, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_DOMAIN={0x7, 0x1, '%{\x00'}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '*-@)\').\x00'}]}, 0x28}, 0x1, 0x0, 0x0, 0x40040}, 0x880) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f00000004c0)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x28, r4, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0xc, 0x1, '*-@)\').\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}]}, 0x28}, 0x1, 0x0, 0x0, 0x4004890}, 0x8050) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x14, r5, 0x800, 0x70bd25, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x4048000}, 0x800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:36 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)=ANY=[@ANYBLOB="1c08dfff", @ANYRES16=r3, @ANYBLOB="000826bd7000fddbdf250200000006000b0023000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048801}, 0x20004800) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, r3, 0x4, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000}, 0x4) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) sendmsg$NLBL_MGMT_C_ADDDEF(r8, &(0x7f0000000440)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000580)={0x54, 0x0, 0x1, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x25}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '\x93\x00 '}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}]}, 0x54}, 0x1, 0x0, 0x0, 0x840}, 0x855) r9 = socket$inet6_sctp(0xa, 0x5, 0x84) getsockopt$inet_sctp6_SCTP_RECVRCVINFO(r9, 0x84, 0x20, &(0x7f00000003c0), &(0x7f0000000400)=0x4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:36 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r1, 0x800}, 0x14}, 0x1, 0x0, 0x0, 0x4081}, 0x4000881) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4008020}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x6c, r1, 0x400, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x101}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':*'}]}, 0x6c}, 0x1, 0x0, 0x0, 0x8000}, 0x40094) 04:57:36 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r4, 0x8, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x64}, 0x1, 0x0, 0x0, 0xc080}, 0x4008000) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x54, 0x0, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '*\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$:\\\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x8805}, 0x24048005) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x40, r5, 0x800, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000001}, 0x4004000) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:36 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x40, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '%+\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x15}}]}, 0x40}, 0x1, 0x0, 0x0, 0x40840}, 0x40810) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="f01a73ab480000", @ANYRES16=r6, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x4004}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r2) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x40, r5, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '%+\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x15}}]}, 0x40}, 0x1, 0x0, 0x0, 0x40840}, 0x40810) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="f01a73ab480000", @ANYRES16=r6, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x4004}, 0x0) (async) 04:57:36 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000003c0)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000102}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x34, 0x0, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10000}]}, 0x34}, 0x1, 0x0, 0x0, 0x24000045}, 0x4080002) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, 0x0, 0x300, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_DOMAIN={0x7, 0x1, '%{\x00'}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '*-@)\').\x00'}]}, 0x28}, 0x1, 0x0, 0x0, 0x40040}, 0x880) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) (rerun: 64) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f00000004c0)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x28, r4, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0xc, 0x1, '*-@)\').\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}]}, 0x28}, 0x1, 0x0, 0x0, 0x4004890}, 0x8050) (async, rerun: 64) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (rerun: 64) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x14, r5, 0x800, 0x70bd25, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x4048000}, 0x800) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="00040300000000000000010000000c00060001000000000000000c00020000000000000000400c0006000000000000000000"], 0x38}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="00040300000000000000010000000c00060001000000000000000c00020000000000000000400c0006000000000000000000"], 0x38}}, 0x0) (async) 04:57:36 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)=ANY=[@ANYBLOB="1c08dfff", @ANYRES16=r3, @ANYBLOB="000826bd7000fddbdf250200000006000b0023000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048801}, 0x20004800) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, r3, 0x4, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000}, 0x4) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r8, &(0x7f0000000440)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000580)={0x54, 0x0, 0x1, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x25}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '\x93\x00 '}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}]}, 0x54}, 0x1, 0x0, 0x0, 0x840}, 0x855) r9 = socket$inet6_sctp(0xa, 0x5, 0x84) getsockopt$inet_sctp6_SCTP_RECVRCVINFO(r9, 0x84, 0x20, &(0x7f00000003c0), &(0x7f0000000400)=0x4) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:36 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r1, 0x800}, 0x14}, 0x1, 0x0, 0x0, 0x4081}, 0x4000881) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4008020}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x6c, r1, 0x400, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x101}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':*'}]}, 0x6c}, 0x1, 0x0, 0x0, 0x8000}, 0x40094) [ 1335.326662] nbd: must specify at least one socket 04:57:36 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010002b10000090000030000000801010000000000aa9f2308eaaabc"], 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x6c, r3, 0x8, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}]}, 0x6c}, 0x1, 0x0, 0x0, 0x840}, 0x1) [ 1335.347794] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:36 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000540)={&(0x7f0000000480)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000500)={&(0x7f00000004c0)=ANY=[@ANYBLOB="1c08dfff", @ANYRES16=r3, @ANYBLOB="000826bd7000fddbdf250200000006000b0023000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048801}, 0x20004800) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x28, r3, 0x4, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000}, 0x4) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r7) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r8, &(0x7f0000000440)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000580)={0x54, 0x0, 0x1, 0x70bd2c, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x25}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_DOMAIN={0x7, 0x1, '\x93\x00 '}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}]}, 0x54}, 0x1, 0x0, 0x0, 0x840}, 0x855) (async) r9 = socket$inet6_sctp(0xa, 0x5, 0x84) getsockopt$inet_sctp6_SCTP_RECVRCVINFO(r9, 0x84, 0x20, &(0x7f00000003c0), &(0x7f0000000400)=0x4) (async) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) 04:57:36 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r4, 0x8, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x64}, 0x1, 0x0, 0x0, 0xc080}, 0x4008000) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x54, 0x0, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '*\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$:\\\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x8805}, 0x24048005) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x40, r5, 0x800, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000001}, 0x4004000) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r4, 0x8, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x64}, 0x1, 0x0, 0x0, 0xc080}, 0x4008000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x54, 0x0, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '*\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$:\\\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x8805}, 0x24048005) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x40, r5, 0x800, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000001}, 0x4004000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="00040300000000000000010000000c00060001000000000000000c00020000000000000000400c0006000000000000000000"], 0x38}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="00040300000000000000010000000c00060001000000000000000c00020000000000000000400c0006000000000000000000"], 0x38}}, 0x0) (async) 04:57:36 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r1, 0x800}, 0x14}, 0x1, 0x0, 0x0, 0x4081}, 0x4000881) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4008020}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x6c, r1, 0x400, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x101}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':*'}]}, 0x6c}, 0x1, 0x0, 0x0, 0x8000}, 0x40094) 04:57:36 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000003c0)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x20000102}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x34, 0x0, 0x200, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10000}]}, 0x34}, 0x1, 0x0, 0x0, 0x24000045}, 0x4080002) (async) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, 0x0, 0x300, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_DOMAIN={0x7, 0x1, '%{\x00'}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '*-@)\').\x00'}]}, 0x28}, 0x1, 0x0, 0x0, 0x40040}, 0x880) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f00000004c0)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x28, r4, 0x4, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_DOMAIN={0xc, 0x1, '*-@)\').\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}]}, 0x28}, 0x1, 0x0, 0x0, 0x4004890}, 0x8050) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x14, r5, 0x800, 0x70bd25, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x4048000}, 0x800) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x14, r2, 0x621}, 0x14}}, 0x0) 04:57:36 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x2c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}}, 0x9) 04:57:36 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x1c, r3, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8000}, 0x80) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000440), r9) sendmsg$NLBL_MGMT_C_ADDDEF(r5, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x34, r8, 0x800, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x25}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x15}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x90}, 0x20000000) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r3, 0x10, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00@\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x14, r2, 0x621}, 0x14}}, 0x0) 04:57:36 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010002b10000090000030000000801010000000000aa9f2308eaaabc"], 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x6c, r3, 0x8, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}]}, 0x6c}, 0x1, 0x0, 0x0, 0x840}, 0x1) 04:57:36 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) setsockopt$WPAN_SECURITY_LEVEL(r0, 0x0, 0x2, &(0x7f00000002c0), 0x4) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) ioctl$SIOCX25GCALLUSERDATA(r0, 0x89e4, &(0x7f0000000200)={0x65, "41d40588731c6fb55b4f69442d522e53473ffbb3564b5062ec612dd2df77a7e7803fa530fb050369ae1674c08546b9355c41a39592716af1d8799831ea1db9f7a30288f572362c6cb715fe2ca99ca4a61415e5e3e4f3108a3d8199e558f9ac932a1d1ada220bea6d6629c9ecc6e29b0e58e1616b0c839d75c73bf7d8a9b4e04e"}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8040}, 0x2000c844) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000380)=ANY=[@ANYBLOB="00006b049415bdfd71a0e1d380ec5d6ccacf247919c4d7d9a349122c53b7dc313a0d5e6da503a425f88480dcc1dfdcf9ec41e99d206e8970c5d9b5c70d11256c9082bcec4dfc91ab7d58cd75c941a5d491e6615d0735000000000000000000", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x20040000) r4 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000000400)=[@in={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x25}}, @in6={0xa, 0x4e22, 0x0, @private0={0xfc, 0x0, '\x00', 0x1}, 0x1}, @in={0x2, 0x4e20, @private=0xa010100}, @in={0x2, 0x4e22, @loopback}, @in={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x3e}}, @in={0x2, 0x4e24, @remote}, @in6={0xa, 0x4e23, 0x401, @private1, 0x7}, @in={0x2, 0x4e24, @private=0xa010102}, @in6={0xa, 0x4e20, 0x474, @remote, 0x800}, @in6={0xa, 0x4e20, 0x100, @mcast1, 0x2}], 0xd0) ioctl$SNDRV_PCM_IOCTL_USER_PVERSION(r0, 0x40044104, &(0x7f0000000080)=0x3) [ 1335.701790] nbd: must specify at least one socket [ 1335.713124] nbd: must specify a device to reconfigure [ 1335.741281] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:36 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x2c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}}, 0x9) 04:57:36 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r4, 0x8, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x64}, 0x1, 0x0, 0x0, 0xc080}, 0x4008000) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x54, 0x0, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '*\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$:\\\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x8805}, 0x24048005) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x40, r5, 0x800, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000001}, 0x4004000) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r4, 0x8, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x64}, 0x1, 0x0, 0x0, 0xc080}, 0x4008000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x54, 0x0, 0x200, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x6, 0x1, '*\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '$:\\\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x54}, 0x1, 0x0, 0x0, 0x8805}, 0x24048005) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x40, r5, 0x800, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000001}, 0x4004000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:36 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x1c, r3, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8000}, 0x80) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) (rerun: 64) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000440), r9) (async, rerun: 64) sendmsg$NLBL_MGMT_C_ADDDEF(r5, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x34, r8, 0x800, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x25}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x15}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x90}, 0x20000000) (async, rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r3, 0x10, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00@\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:36 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x14, r2, 0x621}, 0x14}}, 0x0) 04:57:37 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) setsockopt$WPAN_SECURITY_LEVEL(r0, 0x0, 0x2, &(0x7f00000002c0), 0x4) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) ioctl$SIOCX25GCALLUSERDATA(r0, 0x89e4, &(0x7f0000000200)={0x65, "41d40588731c6fb55b4f69442d522e53473ffbb3564b5062ec612dd2df77a7e7803fa530fb050369ae1674c08546b9355c41a39592716af1d8799831ea1db9f7a30288f572362c6cb715fe2ca99ca4a61415e5e3e4f3108a3d8199e558f9ac932a1d1ada220bea6d6629c9ecc6e29b0e58e1616b0c839d75c73bf7d8a9b4e04e"}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8040}, 0x2000c844) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000380)=ANY=[@ANYBLOB="00006b049415bdfd71a0e1d380ec5d6ccacf247919c4d7d9a349122c53b7dc313a0d5e6da503a425f88480dcc1dfdcf9ec41e99d206e8970c5d9b5c70d11256c9082bcec4dfc91ab7d58cd75c941a5d491e6615d0735000000000000000000", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x20040000) (async) r4 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000000400)=[@in={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x25}}, @in6={0xa, 0x4e22, 0x0, @private0={0xfc, 0x0, '\x00', 0x1}, 0x1}, @in={0x2, 0x4e20, @private=0xa010100}, @in={0x2, 0x4e22, @loopback}, @in={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x3e}}, @in={0x2, 0x4e24, @remote}, @in6={0xa, 0x4e23, 0x401, @private1, 0x7}, @in={0x2, 0x4e24, @private=0xa010102}, @in6={0xa, 0x4e20, 0x474, @remote, 0x800}, @in6={0xa, 0x4e20, 0x100, @mcast1, 0x2}], 0xd0) ioctl$SNDRV_PCM_IOCTL_USER_PVERSION(r0, 0x40044104, &(0x7f0000000080)=0x3) [ 1335.848875] nbd: must specify a device to reconfigure [ 1335.880250] nbd: must specify at least one socket 04:57:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x2c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}}, 0x9) 04:57:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="19010002b10000090000030000000801010000000000aa9f2308eaaabc"], 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x6c, r3, 0x8, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}]}, 0x6c}, 0x1, 0x0, 0x0, 0x840}, 0x1) [ 1335.894365] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x38, 0x0, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x8000}, 0x811) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) [ 1335.921618] nbd: must specify at least one socket 04:57:37 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r5, &(0x7f0000000600)={0x0, 0x0, &(0x7f00000005c0)={&(0x7f0000000640)=ANY=[@ANYBLOB="e939f2caf925fba6e974853ac5fd2efeac5b70000000", @ANYRES16=r4, @ANYBLOB="010000000000000000000800000014000500fc0100000000000000000000000000000500010000000000"], 0x30}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000480)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0x48, r7, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @rand_addr=0x64010100}}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x48}}, 0x80) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r8) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x24, r7, 0x2, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}]}, 0x24}, 0x1, 0x0, 0x0, 0x8044880}, 0x4040081) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r9, @ANYRESDEC=r0, @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000080)='/proc/asound/card3/oss_mixer\x00', 0x600a80, 0x0) read$proc_mixer(r1, &(0x7f0000000180)=""/186, 0xba) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000ca0aedd9dfe1528e9cd6d6a671fe000000000000010000000c0006000100000000000000000400078000"/56], 0x30}}, 0x0) 04:57:37 executing program 1: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) setsockopt$WPAN_SECURITY_LEVEL(r0, 0x0, 0x2, &(0x7f00000002c0), 0x4) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async) ioctl$SIOCX25GCALLUSERDATA(r0, 0x89e4, &(0x7f0000000200)={0x65, "41d40588731c6fb55b4f69442d522e53473ffbb3564b5062ec612dd2df77a7e7803fa530fb050369ae1674c08546b9355c41a39592716af1d8799831ea1db9f7a30288f572362c6cb715fe2ca99ca4a61415e5e3e4f3108a3d8199e558f9ac932a1d1ada220bea6d6629c9ecc6e29b0e58e1616b0c839d75c73bf7d8a9b4e04e"}) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8040}, 0x2000c844) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000380)=ANY=[@ANYBLOB="00006b049415bdfd71a0e1d380ec5d6ccacf247919c4d7d9a349122c53b7dc313a0d5e6da503a425f88480dcc1dfdcf9ec41e99d206e8970c5d9b5c70d11256c9082bcec4dfc91ab7d58cd75c941a5d491e6615d0735000000000000000000", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c0002004d2100000000000004000780"], 0x24}}, 0x20040000) r4 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt$inet_sctp6_SCTP_SOCKOPT_BINDX_ADD(r4, 0x84, 0x64, &(0x7f0000000400)=[@in={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x25}}, @in6={0xa, 0x4e22, 0x0, @private0={0xfc, 0x0, '\x00', 0x1}, 0x1}, @in={0x2, 0x4e20, @private=0xa010100}, @in={0x2, 0x4e22, @loopback}, @in={0x2, 0x4e23, @dev={0xac, 0x14, 0x14, 0x3e}}, @in={0x2, 0x4e24, @remote}, @in6={0xa, 0x4e23, 0x401, @private1, 0x7}, @in={0x2, 0x4e24, @private=0xa010102}, @in6={0xa, 0x4e20, 0x474, @remote, 0x800}, @in6={0xa, 0x4e20, 0x100, @mcast1, 0x2}], 0xd0) (async) ioctl$SNDRV_PCM_IOCTL_USER_PVERSION(r0, 0x40044104, &(0x7f0000000080)=0x3) [ 1335.987525] nbd: must specify a device to reconfigure 04:57:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="1901000000000000000003000000080001000000000051ce19b16034d8628902ebfee88e78cfb62afec09f8b0cef628106367fa5d0f1bd6b42"], 0x1c}}, 0x0) 04:57:37 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r3) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r5, &(0x7f0000000600)={0x0, 0x0, &(0x7f00000005c0)={&(0x7f0000000640)=ANY=[@ANYBLOB="e939f2caf925fba6e974853ac5fd2efeac5b70000000", @ANYRES16=r4, @ANYBLOB="010000000000000000000800000014000500fc0100000000000000000000000000000500010000000000"], 0x30}}, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000480)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0x48, r7, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @rand_addr=0x64010100}}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x48}}, 0x80) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r8) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x24, r7, 0x2, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}]}, 0x24}, 0x1, 0x0, 0x0, 0x8044880}, 0x4040081) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r9, @ANYRESDEC=r0, @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21220000010000000c0002004dd00000000000000400ef7f000000000000"], 0x24}}, 0x0) [ 1336.132389] nbd: couldn't find a device at index 0 [ 1336.155609] nbd: must specify an index to disconnect 04:57:37 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_PROTOCOLS(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x1c, r3, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8000}, 0x80) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r5) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r6) sendmsg$NLBL_MGMT_C_LISTDEF(r7, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async, rerun: 64) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000000440), r9) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r5, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x34, r8, 0x800, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x25}}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x15}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x90}, 0x20000000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x1c, r3, 0x10, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00@\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000080)='/proc/asound/card3/oss_mixer\x00', 0x600a80, 0x0) read$proc_mixer(r1, &(0x7f0000000180)=""/186, 0xba) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000ca0aedd9dfe1528e9cd6d6a671fe000000000000010000000c0006000100000000000000000400078000"/56], 0x30}}, 0x0) 04:57:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x38, 0x0, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x8000}, 0x811) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="1901000000000000000003000000080001000000000051ce19b16034d8628902ebfee88e78cfb62afec09f8b0cef628106367fa5d0f1bd6b42"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="1901000000000000000003000000080001000000000051ce19b16034d8628902ebfee88e78cfb62afec09f8b0cef628106367fa5d0f1bd6b42"], 0x1c}}, 0x0) (async) 04:57:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21220000010000000c0002004dd00000000000000400ef7f000000000000"], 0x24}}, 0x0) 04:57:37 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_VERSION(r5, &(0x7f0000000600)={0x0, 0x0, &(0x7f00000005c0)={&(0x7f0000000640)=ANY=[@ANYBLOB="e939f2caf925fba6e974853ac5fd2efeac5b70000000", @ANYRES16=r4, @ANYBLOB="010000000000000000000800000014000500fc0100000000000000000000000000000500010000000000"], 0x30}}, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r2) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000480)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0x48, r7, 0x100, 0x70bd2b, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @rand_addr=0x64010100}}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x48}}, 0x80) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r8) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r8) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x24, r7, 0x2, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}]}, 0x24}, 0x1, 0x0, 0x0, 0x8044880}, 0x4040081) (async) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r9, @ANYRESDEC=r0, @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000080)='/proc/asound/card3/oss_mixer\x00', 0x600a80, 0x0) read$proc_mixer(r1, &(0x7f0000000180)=""/186, 0xba) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000ca0aedd9dfe1528e9cd6d6a671fe000000000000010000000c0006000100000000000000000400078000"/56], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000080)='/proc/asound/card3/oss_mixer\x00', 0x600a80, 0x0) (async) read$proc_mixer(r1, &(0x7f0000000180)=""/186, 0xba) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="21060000ca0aedd9dfe1528e9cd6d6a671fe000000000000010000000c0006000100000000000000000400078000"/56], 0x30}}, 0x0) (async) 04:57:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="1901000000000000000003000000080001000000000051ce19b16034d8628902ebfee88e78cfb62afec09f8b0cef628106367fa5d0f1bd6b42"], 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="1901000000000000000003000000080001000000000051ce19b16034d8628902ebfee88e78cfb62afec09f8b0cef628106367fa5d0f1bd6b42"], 0x1c}}, 0x0) (async) [ 1336.341526] nbd: couldn't find a device at index 0 [ 1336.357792] nbd: couldn't find a device at index 0 04:57:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x38, 0x0, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x8000}, 0x811) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x38, 0x0, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x8000}, 0x811) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21220000010000000c0002004dd00000000000000400ef7f000000000000"], 0x24}}, 0x0) [ 1336.434785] nbd: couldn't find a device at index 0 04:57:37 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYRESHEX=r2, @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES16=r0, @ANYRES64=r0, @ANYRES32, @ANYBLOB="0c0002261d023d91294c540ca775b97997ae40893c498cee88f545a3f65ee76150de83fc6ed19f04e73f00000000d7b381c3e3dbfc90401c72c5eae1bae8c4905d7a311a66ca7eb9a456a4ce74e6289f33c644d1a8f96b241aa7bf7471f3fa965204105e28a17fbc70faec81fe21359e8c3501bc289e13de67e512b8"], 0x3c}}, 0x4004001) ioctl$NS_GET_OWNER_UID(0xffffffffffffffff, 0xb704, &(0x7f00000000c0)) [ 1336.462893] nbd: couldn't find a device at index 0 04:57:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:37 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r6, 0x800, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000840}, 0x841) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)={0x44, r3, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x9, 0x8, 0x20000000001ff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffd}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x44}}, 0x0) 04:57:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x40c200, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NLBL_MGMT_C_VERSION(r1, &(0x7f0000000280)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, 0x0, 0x10, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x26}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x24}, 0x1, 0x0, 0x0, 0x40080}, 0x4010) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c00020000000000000000002c00078008000100", @ANYRES32, @ANYBLOB="0896a89e29d1d51373b85717a435cebb00407c", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB], 0x58}}, 0x0) 04:57:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000300), r0) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)=ANY=[@ANYBLOB, @ANYRES16=r4, @ANYBLOB="00002dbd7000ffdbdf250100000008000c000100000014000600fc01000000000000000000000000000014000600fe88000000000000000000000000010108000c000300000014000600ff0200000000000000000000000000010800020005000000"], 0x68}, 0x1, 0x0, 0x0, 0x2014}, 0x80) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r5) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f0000000440)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000126bd7000ffdbdf250200000008000700ac9414bb080002000700000006000b002805000008000700ac141441080004000300000006000b002600000006000b000200000014000600fe88000000000000000000000000000171d83515de"], 0x60}, 0x1, 0x0, 0x0, 0x4000880}, 0x48040) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="26918e5d944152960000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) [ 1336.569040] nbd: must specify an index to disconnect 04:57:37 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYRESHEX=r2, @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES16=r0, @ANYRES64=r0, @ANYRES32, @ANYBLOB="0c0002261d023d91294c540ca775b97997ae40893c498cee88f545a3f65ee76150de83fc6ed19f04e73f00000000d7b381c3e3dbfc90401c72c5eae1bae8c4905d7a311a66ca7eb9a456a4ce74e6289f33c644d1a8f96b241aa7bf7471f3fa965204105e28a17fbc70faec81fe21359e8c3501bc289e13de67e512b8"], 0x3c}}, 0x4004001) (async, rerun: 32) ioctl$NS_GET_OWNER_UID(0xffffffffffffffff, 0xb704, &(0x7f00000000c0)) (rerun: 32) 04:57:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)={0x44, r3, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x9, 0x8, 0x20000000001ff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffd}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x44}}, 0x0) [ 1336.602386] nbd: must specify at least one socket 04:57:37 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r6, 0x800, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000840}, 0x841) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:37 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x40c200, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NLBL_MGMT_C_VERSION(r1, &(0x7f0000000280)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, 0x0, 0x10, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x26}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x24}, 0x1, 0x0, 0x0, 0x40080}, 0x4010) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c00020000000000000000002c00078008000100", @ANYRES32, @ANYBLOB="0896a89e29d1d51373b85717a435cebb00407c", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB], 0x58}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x40c200, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) (async) sendmsg$NLBL_MGMT_C_VERSION(r1, &(0x7f0000000280)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, 0x0, 0x10, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x26}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x24}, 0x1, 0x0, 0x0, 0x40080}, 0x4010) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c00020000000000000000002c00078008000100", @ANYRES32, @ANYBLOB="0896a89e29d1d51373b85717a435cebb00407c", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB], 0x58}}, 0x0) (async) 04:57:37 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000140)={0x44, r3, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x9, 0x8, 0x20000000001ff}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffd}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x44}}, 0x0) [ 1336.715869] nbd: must specify at least one socket 04:57:37 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYRESHEX=r2, @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES16=r0, @ANYRES64=r0, @ANYRES32, @ANYBLOB="0c0002261d023d91294c540ca775b97997ae40893c498cee88f545a3f65ee76150de83fc6ed19f04e73f00000000d7b381c3e3dbfc90401c72c5eae1bae8c4905d7a311a66ca7eb9a456a4ce74e6289f33c644d1a8f96b241aa7bf7471f3fa965204105e28a17fbc70faec81fe21359e8c3501bc289e13de67e512b8"], 0x3c}}, 0x4004001) ioctl$NS_GET_OWNER_UID(0xffffffffffffffff, 0xb704, &(0x7f00000000c0)) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYRESHEX=r2, @ANYRES16=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES16=r0, @ANYRES64=r0, @ANYRES32, @ANYBLOB="0c0002261d023d91294c540ca775b97997ae40893c498cee88f545a3f65ee76150de83fc6ed19f04e73f00000000d7b381c3e3dbfc90401c72c5eae1bae8c4905d7a311a66ca7eb9a456a4ce74e6289f33c644d1a8f96b241aa7bf7471f3fa965204105e28a17fbc70faec81fe21359e8c3501bc289e13de67e512b8"], 0x3c}}, 0x4004001) (async) ioctl$NS_GET_OWNER_UID(0xffffffffffffffff, 0xb704, &(0x7f00000000c0)) (async) 04:57:37 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) 04:57:37 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000300), r0) (rerun: 32) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)=ANY=[@ANYBLOB, @ANYRES16=r4, @ANYBLOB="00002dbd7000ffdbdf250100000008000c000100000014000600fc01000000000000000000000000000014000600fe88000000000000000000000000010108000c000300000014000600ff0200000000000000000000000000010800020005000000"], 0x68}, 0x1, 0x0, 0x0, 0x2014}, 0x80) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r5) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f0000000440)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000126bd7000ffdbdf250200000008000700ac9414bb080002000700000006000b002805000008000700ac141441080004000300000006000b002600000006000b000200000014000600fe88000000000000000000000000000171d83515de"], 0x60}, 0x1, 0x0, 0x0, 0x4000880}, 0x48040) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="26918e5d944152960000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) 04:57:37 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r6, 0x800, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000840}, 0x841) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r4) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r6, 0x800, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000840}, 0x841) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) (async) 04:57:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000000), 0x40c200, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NLBL_MGMT_C_VERSION(r1, &(0x7f0000000280)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x24, 0x0, 0x10, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x26}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x24}, 0x1, 0x0, 0x0, 0x40080}, 0x4010) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYBLOB='X\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c00020000000000000000002c00078008000100", @ANYRES32, @ANYBLOB="0896a89e29d1d51373b85717a435cebb00407c", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32=r4, @ANYBLOB], 0x58}}, 0x0) 04:57:38 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) getsockopt$inet_sctp6_SCTP_RECVRCVINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000000080), &(0x7f00000000c0)=0x4) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) r4 = syz_open_dev$dri(&(0x7f0000000180), 0x2, 0x151000) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f00000002c0)={&(0x7f00000001c0)="d7bbe745cd5953957b281841408ebffe9291e3c71f611db39a929eaf348cc35938ddccf5d9fe930693b8d5f33c20de4d02a5a2a4f408114c7883296a7cd40fa582a0e0a0e0a4190db9374224a3294e99e441183c1efbce19af48e8326251822a1fda1a5816f88e077a3e507adb39600d50bb5e6601e9c5d892f0d39cbbd3edd073444cb903a7658afb58a141a7d6da6875ac74ca72accfae0fef43095ef1aedf6750eb4d2d733b0c2cfc61d237a781dbd3285470c9b39239dc00724cb570e0c07e28a87da2b1dfd3dba0616cd99b6918821ace15bdaa11be1f1e81", 0xdb, 0x0}) ioctl$DRM_IOCTL_MODE_DESTROYPROPBLOB(r4, 0xc00464be, &(0x7f0000000300)={r5}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRESHEX=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r2, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x3c, r4, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}]}, 0x3c}, 0x1, 0x0, 0x0, 0x810}, 0x2404c05c) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x70bd2b, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000000}, 0x0) 04:57:38 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) io_setup(0x10000, &(0x7f0000000080)) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) io_setup(0xffffffff, &(0x7f00000000c0)) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x400, 0x0) connect$802154_dgram(r4, &(0x7f00000001c0)={0x24, @short={0x2, 0x3, 0xaaa0}}, 0x14) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000340)=ANY=[@ANYBLOB="370000008b6c91202fd40cd2e1e9c6c06792fdfc4b35a1cf42925203aeda481799d3cf94fed7c8974ca0be441a517db2fdacc59bdb30888369abc0e75ddfbe4a12cfa4bda84ee71dc36e55eeec01e942408400fc858ae77c2497c69ac86d2e6dc925e9eff6aa6e9dcb54", @ANYRES16=r3, @ANYBLOB="2106000000000023008008000180800007000000000000e946ac11e30f7d48fdf539ab3c4a146e75df17410f03ec4b7c74213e91c8f74a7562216d722fc4c1f9b02231276c98d3c87a26fcfa5c0273e7", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800140000c0e700"], 0x3c}}, 0x80) 04:57:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r4, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x44, r7, 0x800, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}]}, 0x44}, 0x1, 0x0, 0x0, 0x880}, 0x20008000) sendmsg$NLBL_MGMT_C_PROTOCOLS(r2, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x5c, r3, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x8040) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="00010000000000000000010000000c00060001000000000000000c000200000000000000000004000780229ecfc8e4ccd964f6bb6b0658f32be3059b2fa5cfcef384e260e881b5025e461e6ecab8db58c478e64c2ebe9326c137d34f8280e0c520a666261ebf19f7e6a591517d58f0"], 0x30}}, 0x0) 04:57:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x70, r3, 0x1, 0x70bd2c, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast2}}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x70}, 0x1, 0x0, 0x0, 0x4005881}, 0x20000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x38, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x38}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r4, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x34, r5, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x4c004}, 0x4004000) 04:57:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x3c, r4, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}]}, 0x3c}, 0x1, 0x0, 0x0, 0x810}, 0x2404c05c) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x70bd2b, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000000}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x3c, r4, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}]}, 0x3c}, 0x1, 0x0, 0x0, 0x810}, 0x2404c05c) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x70bd2b, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000000}, 0x0) (async) [ 1337.032666] nbd: couldn't find a device at index 3 04:57:38 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) getsockopt$inet_sctp6_SCTP_RECVRCVINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000000080), &(0x7f00000000c0)=0x4) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 64) r3 = socket$rds(0x15, 0x5, 0x0) (rerun: 64) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) (async, rerun: 32) r4 = syz_open_dev$dri(&(0x7f0000000180), 0x2, 0x151000) (rerun: 32) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f00000002c0)={&(0x7f00000001c0)="d7bbe745cd5953957b281841408ebffe9291e3c71f611db39a929eaf348cc35938ddccf5d9fe930693b8d5f33c20de4d02a5a2a4f408114c7883296a7cd40fa582a0e0a0e0a4190db9374224a3294e99e441183c1efbce19af48e8326251822a1fda1a5816f88e077a3e507adb39600d50bb5e6601e9c5d892f0d39cbbd3edd073444cb903a7658afb58a141a7d6da6875ac74ca72accfae0fef43095ef1aedf6750eb4d2d733b0c2cfc61d237a781dbd3285470c9b39239dc00724cb570e0c07e28a87da2b1dfd3dba0616cd99b6918821ace15bdaa11be1f1e81", 0xdb, 0x0}) ioctl$DRM_IOCTL_MODE_DESTROYPROPBLOB(r4, 0xc00464be, &(0x7f0000000300)={r5}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRESHEX=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r2, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000300), r0) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000400)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)=ANY=[@ANYBLOB, @ANYRES16=r4, @ANYBLOB="00002dbd7000ffdbdf250100000008000c000100000014000600fc01000000000000000000000000000014000600fe88000000000000000000000000010108000c000300000014000600ff0200000000000000000000000000010800020005000000"], 0x68}, 0x1, 0x0, 0x0, 0x2014}, 0x80) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r5) (async) sendmsg$NLBL_MGMT_C_REMOVE(r2, &(0x7f0000000240)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000200)={&(0x7f0000000440)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000126bd7000ffdbdf250200000008000700ac9414bb080002000700000006000b002805000008000700ac141441080004000300000006000b002600000006000b000200000014000600fe88000000000000000000000000000171d83515de"], 0x60}, 0x1, 0x0, 0x0, 0x4000880}, 0x48040) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="26918e5d944152960000010000000c0002004d2100000000000004000780"], 0x24}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) 04:57:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r4, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x44, r7, 0x800, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}]}, 0x44}, 0x1, 0x0, 0x0, 0x880}, 0x20008000) sendmsg$NLBL_MGMT_C_PROTOCOLS(r2, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x5c, r3, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x8040) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="00010000000000000000010000000c00060001000000000000000c000200000000000000000004000780229ecfc8e4ccd964f6bb6b0658f32be3059b2fa5cfcef384e260e881b5025e461e6ecab8db58c478e64c2ebe9326c137d34f8280e0c520a666261ebf19f7e6a591517d58f0"], 0x30}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r4, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x44, r7, 0x800, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}]}, 0x44}, 0x1, 0x0, 0x0, 0x880}, 0x20008000) (async) sendmsg$NLBL_MGMT_C_PROTOCOLS(r2, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x5c, r3, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x8040) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="00010000000000000000010000000c00060001000000000000000c000200000000000000000004000780229ecfc8e4ccd964f6bb6b0658f32be3059b2fa5cfcef384e260e881b5025e461e6ecab8db58c478e64c2ebe9326c137d34f8280e0c520a666261ebf19f7e6a591517d58f0"], 0x30}}, 0x0) (async) 04:57:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x70, r3, 0x1, 0x70bd2c, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast2}}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x70}, 0x1, 0x0, 0x0, 0x4005881}, 0x20000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x38, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x38}}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r4, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x34, r5, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x4c004}, 0x4004000) 04:57:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_LISTALL(r2, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x40, r4, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x29}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x13}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '*,.\x00'}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="210600000000000051e6010000000c0002004d210000000000002400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB], 0x44}}, 0x0) 04:57:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x3c, r4, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}]}, 0x3c}, 0x1, 0x0, 0x0, 0x810}, 0x2404c05c) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x70bd2b, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x20000000}, 0x0) [ 1337.132082] nbd: must specify at least one socket [ 1337.144164] nbd: couldn't find a device at index 3 04:57:38 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) getsockopt$inet_sctp6_SCTP_RECVRCVINFO(0xffffffffffffffff, 0x84, 0x20, &(0x7f0000000080), &(0x7f00000000c0)=0x4) (async, rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 32) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) r4 = syz_open_dev$dri(&(0x7f0000000180), 0x2, 0x151000) (async) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, &(0x7f00000002c0)={&(0x7f00000001c0)="d7bbe745cd5953957b281841408ebffe9291e3c71f611db39a929eaf348cc35938ddccf5d9fe930693b8d5f33c20de4d02a5a2a4f408114c7883296a7cd40fa582a0e0a0e0a4190db9374224a3294e99e441183c1efbce19af48e8326251822a1fda1a5816f88e077a3e507adb39600d50bb5e6601e9c5d892f0d39cbbd3edd073444cb903a7658afb58a141a7d6da6875ac74ca72accfae0fef43095ef1aedf6750eb4d2d733b0c2cfc61d237a781dbd3285470c9b39239dc00724cb570e0c07e28a87da2b1dfd3dba0616cd99b6918821ace15bdaa11be1f1e81", 0xdb, 0x0}) ioctl$DRM_IOCTL_MODE_DESTROYPROPBLOB(r4, 0xc00464be, &(0x7f0000000300)={r5}) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRESHEX=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r2, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:38 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) io_setup(0x10000, &(0x7f0000000080)) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) io_setup(0xffffffff, &(0x7f00000000c0)) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x400, 0x0) connect$802154_dgram(r4, &(0x7f00000001c0)={0x24, @short={0x2, 0x3, 0xaaa0}}, 0x14) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000340)=ANY=[@ANYBLOB="370000008b6c91202fd40cd2e1e9c6c06792fdfc4b35a1cf42925203aeda481799d3cf94fed7c8974ca0be441a517db2fdacc59bdb30888369abc0e75ddfbe4a12cfa4bda84ee71dc36e55eeec01e942408400fc858ae77c2497c69ac86d2e6dc925e9eff6aa6e9dcb54", @ANYRES16=r3, @ANYBLOB="2106000000000023008008000180800007000000000000e946ac11e30f7d48fdf539ab3c4a146e75df17410f03ec4b7c74213e91c8f74a7562216d722fc4c1f9b02231276c98d3c87a26fcfa5c0273e7", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800140000c0e700"], 0x3c}}, 0x80) 04:57:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r2) (async, rerun: 64) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) (rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r5) sendmsg$NLBL_MGMT_C_LISTDEF(r6, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r4, &(0x7f00000003c0)={&(0x7f00000002c0)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x44, r7, 0x800, 0x70bd2d, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}]}, 0x44}, 0x1, 0x0, 0x0, 0x880}, 0x20008000) (async, rerun: 32) sendmsg$NLBL_MGMT_C_PROTOCOLS(r2, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x5c, r3, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private1={0xfc, 0x1, '\x00', 0x1}}]}, 0x5c}, 0x1, 0x0, 0x0, 0x40000}, 0x8040) (rerun: 32) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="00010000000000000000010000000c00060001000000000000000c000200000000000000000004000780229ecfc8e4ccd964f6bb6b0658f32be3059b2fa5cfcef384e260e881b5025e461e6ecab8db58c478e64c2ebe9326c137d34f8280e0c520a666261ebf19f7e6a591517d58f0"], 0x30}}, 0x0) 04:57:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_LISTALL(r2, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x40, r4, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x29}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x13}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '*,.\x00'}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="210600000000000051e6010000000c0002004d210000000000002400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB], 0x44}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) (async) sendmsg$NLBL_MGMT_C_LISTALL(r2, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x40, r4, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x29}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x13}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '*,.\x00'}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="210600000000000051e6010000000c0002004d210000000000002400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB], 0x44}}, 0x0) (async) 04:57:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1337.292893] nbd: couldn't find a device at index 3 04:57:38 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0xa4, r4, 0x300, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffff8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7fff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '%@\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x40}, 0x84001) ioctl$VHOST_SET_LOG_FD(0xffffffffffffffff, 0x4004af07, &(0x7f0000000080)) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r9) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="21060000000800000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0ccfb9"], 0x3c}}, 0x0) 04:57:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x70, r3, 0x1, 0x70bd2c, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast2}}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x70}, 0x1, 0x0, 0x0, 0x4005881}, 0x20000000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x38, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x38}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r4, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x34, r5, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x4c004}, 0x4004000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000280), r0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x70, r3, 0x1, 0x70bd2c, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast2}}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}]}, 0x70}, 0x1, 0x0, 0x0, 0x4005881}, 0x20000000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x38, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x38}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000000c0), r0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r4, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x34, r5, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x4c004}, 0x4004000) (async) 04:57:38 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) io_setup(0x10000, &(0x7f0000000080)) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) io_setup(0xffffffff, &(0x7f00000000c0)) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000180), 0x400, 0x0) connect$802154_dgram(r4, &(0x7f00000001c0)={0x24, @short={0x2, 0x3, 0xaaa0}}, 0x14) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000340)=ANY=[@ANYBLOB="370000008b6c91202fd40cd2e1e9c6c06792fdfc4b35a1cf42925203aeda481799d3cf94fed7c8974ca0be441a517db2fdacc59bdb30888369abc0e75ddfbe4a12cfa4bda84ee71dc36e55eeec01e942408400fc858ae77c2497c69ac86d2e6dc925e9eff6aa6e9dcb54", @ANYRES16=r3, @ANYBLOB="2106000000000023008008000180800007000000000000e946ac11e30f7d48fdf539ab3c4a146e75df17410f03ec4b7c74213e91c8f74a7562216d722fc4c1f9b02231276c98d3c87a26fcfa5c0273e7", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800140000c0e700"], 0x3c}}, 0x80) 04:57:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_LISTALL(r2, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x40, r4, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x29}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x13}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '*,.\x00'}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="210600000000000051e6010000000c0002004d210000000000002400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB], 0x44}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) (async) sendmsg$NLBL_MGMT_C_LISTALL(r2, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x40, r4, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x29}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x13}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, '*,.\x00'}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="210600000000000051e6010000000c0002004d210000000000002400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB], 0x44}}, 0x0) (async) [ 1337.442163] nbd: couldn't find a device at index 3 [ 1337.456327] nbd: must specify at least one socket 04:57:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) 04:57:38 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0xa4, r4, 0x300, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffff8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7fff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '%@\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x40}, 0x84001) ioctl$VHOST_SET_LOG_FD(0xffffffffffffffff, 0x4004af07, &(0x7f0000000080)) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r9) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="21060000000800000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0ccfb9"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0xa4, r4, 0x300, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffff8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7fff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '%@\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x40}, 0x84001) (async) ioctl$VHOST_SET_LOG_FD(0xffffffffffffffff, 0x4004af07, &(0x7f0000000080)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r9) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="21060000000800000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0ccfb9"], 0x3c}}, 0x0) (async) [ 1337.482995] nbd: must specify a size in bytes for the device [ 1337.512738] nbd: must specify at least one socket 04:57:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="100601b701000c1b06002ca00000000000000c0002000000000000000000040007c00000000000000000"], 0x30}}, 0x1) 04:57:38 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106f6ffffff00000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) [ 1337.549641] nbd: must specify at least one socket 04:57:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000480)) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000540)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc4c7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}, 0x1, 0x0, 0x0, 0x4044000}, 0x40040) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000440)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000400)={&(0x7f00000001c0)={0x1c, 0x0, 0x10, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24008004}, 0x1) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r1) sendmsg$NLBL_MGMT_C_ADD(r5, &(0x7f0000000680)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x54, r6, 0x8, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x54}, 0x1, 0x0, 0x0, 0x14}, 0x40000410) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r7) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r1) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000640)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000500)={&(0x7f00000005c0)={0x7c, r8, 0x800, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x4c805}, 0x4801) [ 1337.603920] nbd: must specify at least one socket 04:57:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) 04:57:38 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106f6ffffff00000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="100601b701000c1b06002ca00000000000000c0002000000000000000000040007c00000000000000000"], 0x30}}, 0x1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="100601b701000c1b06002ca00000000000000c0002000000000000000000040007c00000000000000000"], 0x30}}, 0x1) (async) 04:57:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) (async) [ 1337.634370] nbd: couldn't find a device at index 3 [ 1337.652856] nbd: must specify a size in bytes for the device [ 1337.670430] nbd: couldn't find a device at index 3 04:57:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000480)) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000540)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc4c7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}, 0x1, 0x0, 0x0, 0x4044000}, 0x40040) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000440)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000400)={&(0x7f00000001c0)={0x1c, 0x0, 0x10, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24008004}, 0x1) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r1) sendmsg$NLBL_MGMT_C_ADD(r5, &(0x7f0000000680)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x54, r6, 0x8, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x54}, 0x1, 0x0, 0x0, 0x14}, 0x40000410) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r7) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r1) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000640)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000500)={&(0x7f00000005c0)={0x7c, r8, 0x800, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x4c805}, 0x4801) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000480)) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000540)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc4c7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}, 0x1, 0x0, 0x0, 0x4044000}, 0x40040) (async) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000440)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000400)={&(0x7f00000001c0)={0x1c, 0x0, 0x10, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24008004}, 0x1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r1) (async) sendmsg$NLBL_MGMT_C_ADD(r5, &(0x7f0000000680)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x54, r6, 0x8, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x54}, 0x1, 0x0, 0x0, 0x14}, 0x40000410) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r7) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r1) (async) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000640)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000500)={&(0x7f00000005c0)={0x7c, r8, 0x800, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x4c805}, 0x4801) (async) 04:57:38 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r4, 0x1}, 0x14}}, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) (async, rerun: 64) r6 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (rerun: 64) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r6, 0x82000000) r7 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r7, 0x82000000) (async) r8 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r8, 0x82000000) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000280)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000180)={0xa4, r4, 0x300, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffff8}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7fff}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '%@\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}]}]}, 0xa4}, 0x1, 0x0, 0x0, 0x40}, 0x84001) ioctl$VHOST_SET_LOG_FD(0xffffffffffffffff, 0x4004af07, &(0x7f0000000080)) (async) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r9) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="21060000000800000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0ccfb9"], 0x3c}}, 0x0) 04:57:38 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) 04:57:38 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="2106f6ffffff00000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) 04:57:38 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=ANY=[@ANYBLOB='0\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="100601b701000c1b06002ca00000000000000c0002000000000000000000040007c00000000000000000"], 0x30}}, 0x1) 04:57:38 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) (async) r3 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r3, 0x82000000) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000480)) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000540)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc4c7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}, 0x1, 0x0, 0x0, 0x4044000}, 0x40040) (async) sendmsg$NLBL_MGMT_C_REMOVE(r0, &(0x7f0000000440)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000400)={&(0x7f00000001c0)={0x1c, 0x0, 0x10, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24008004}, 0x1) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r1) sendmsg$NLBL_MGMT_C_ADD(r5, &(0x7f0000000680)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x54, r6, 0x8, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x54}, 0x1, 0x0, 0x0, 0x14}, 0x40000410) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r7) (async, rerun: 64) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000004c0), r1) (rerun: 64) sendmsg$NLBL_MGMT_C_ADDDEF(0xffffffffffffffff, &(0x7f0000000640)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000500)={&(0x7f00000005c0)={0x7c, r8, 0x800, 0x70bd28, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @local}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}]}, 0x7c}, 0x1, 0x0, 0x0, 0x4c805}, 0x4801) 04:57:38 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r2, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x24}, 0x1, 0x0, 0x0, 0x40040}, 0x40000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1337.801422] nbd: couldn't find a device at index 3 [ 1337.816143] nbd: couldn't find a device at index 3 04:57:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r2, 0x1, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000004}, 0x20040084) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0xc2004000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x2c, r5, 0x100, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4044840}, 0x8054) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) 04:57:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_VERSION(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000003c0)={&(0x7f0000000240)={0x38, r3, 0x4, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x15}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}]}, 0x38}, 0x1, 0x0, 0x0, 0x8800}, 0x4000810) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r3, 0x1, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000084}, 0x800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r2, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x24}, 0x1, 0x0, 0x0, 0x40040}, 0x40000) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:39 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$nbd(&(0x7f0000000040), r1) r2 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES32=r0, @ANYBLOB="210600000000001000000100000014a43a08d7f847efcf230192cc", @ANYRES32, @ANYRES32=r0, @ANYRES64=r2, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x10000001}, 0x20044000) 04:57:39 executing program 1: r0 = accept4$x25(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000140)=0x12, 0x800) ioctl$sock_x25_SIOCDELRT(r0, 0x890c, &(0x7f0000000280)={@remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x2}, 0x100e, 'macvlan0\x00'}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SDTEFACILITIES(r1, 0x89eb, &(0x7f0000000440)={0x2, 0x1, 0x9, 0x7f, 0x9, 0x3, 0x13, "5e1492c209558dcaa4f1376c919dcba012957086", "2dd5ba55f7aefc34506e604227931ac3632654c3"}) ioctl$sock_x25_SIOCDELRT(r0, 0x890c, &(0x7f0000000180)={@remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x3}, 0xd, 'xfrm0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000380), 0x0, 0x0) bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@bloom_filter={0x1e, 0x452, 0xa1fc, 0x8000, 0x1004, r5, 0x3f, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x3, 0x7}, 0x48) 04:57:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r2, 0x1, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000004}, 0x20040084) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0xc2004000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x2c, r5, 0x100, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4044840}, 0x8054) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, r2, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x24}, 0x1, 0x0, 0x0, 0x40040}, 0x40000) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)=ANY=[@ANYBLOB='\x00\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="19010000000000000000030000000800010000000000"], 0x1c}}, 0x0) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)=ANY=[@ANYBLOB='\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000003c0)={&(0x7f0000000240)={0x38, r3, 0x4, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x15}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}]}, 0x38}, 0x1, 0x0, 0x0, 0x8800}, 0x4000810) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r3, 0x1, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000084}, 0x800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:39 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r2 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES32=r0, @ANYBLOB="210600000000001000000100000014a43a08d7f847efcf230192cc", @ANYRES32, @ANYRES32=r0, @ANYRES64=r2, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x10000001}, 0x20044000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES32=r0, @ANYBLOB="210600000000001000000100000014a43a08d7f847efcf230192cc", @ANYRES32, @ANYRES32=r0, @ANYRES64=r2, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x10000001}, 0x20044000) (async) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) 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$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, r5, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}]}, 0x3c}}, 0x40010) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x38, r2, 0x421, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x8011}, 0x0) 04:57:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r2, 0x1, 0x70bd2c, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000004}, 0x20040084) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0xc2004000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x2c, r5, 0x100, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0xe, 0x1, 'NLBL_MGMT\x00'}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4044840}, 0x8054) (async, rerun: 32) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r6, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) 04:57:39 executing program 1: r0 = accept4$x25(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000140)=0x12, 0x800) ioctl$sock_x25_SIOCDELRT(r0, 0x890c, &(0x7f0000000280)={@remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x2}, 0x100e, 'macvlan0\x00'}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SDTEFACILITIES(r1, 0x89eb, &(0x7f0000000440)={0x2, 0x1, 0x9, 0x7f, 0x9, 0x3, 0x13, "5e1492c209558dcaa4f1376c919dcba012957086", "2dd5ba55f7aefc34506e604227931ac3632654c3"}) (async) ioctl$sock_x25_SIOCDELRT(r0, 0x890c, &(0x7f0000000180)={@remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x3}, 0xd, 'xfrm0\x00'}) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) (async) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000380), 0x0, 0x0) bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@bloom_filter={0x1e, 0x452, 0xa1fc, 0x8000, 0x1004, r5, 0x3f, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x3, 0x7}, 0x48) 04:57:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_VERSION(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000003c0)={&(0x7f0000000240)={0x38, r3, 0x4, 0x70bd29, 0x25dfdbfd, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x15}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}]}, 0x38}, 0x1, 0x0, 0x0, 0x8800}, 0x4000810) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r3, 0x1, 0x70bd2d, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}]}, 0x28}, 0x1, 0x0, 0x0, 0x4000084}, 0x800) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:39 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r2 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES32=r0, @ANYBLOB="210600000000001000000100000014a43a08d7f847efcf230192cc", @ANYRES32, @ANYRES32=r0, @ANYRES64=r2, @ANYBLOB="0c0002"], 0x3c}, 0x1, 0x0, 0x0, 0x10000001}, 0x20044000) 04:57:39 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)={0x34, r1, 0x119, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x97b}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3f}]}, 0x34}}, 0x0) 04:57:39 executing program 1: r0 = accept4$x25(0xffffffffffffffff, &(0x7f0000000000), &(0x7f0000000140)=0x12, 0x800) ioctl$sock_x25_SIOCDELRT(r0, 0x890c, &(0x7f0000000280)={@remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x2}, 0x100e, 'macvlan0\x00'}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SDTEFACILITIES(r1, 0x89eb, &(0x7f0000000440)={0x2, 0x1, 0x9, 0x7f, 0x9, 0x3, 0x13, "5e1492c209558dcaa4f1376c919dcba012957086", "2dd5ba55f7aefc34506e604227931ac3632654c3"}) (async) ioctl$sock_x25_SIOCDELRT(r0, 0x890c, &(0x7f0000000180)={@remote={'\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc', 0x3}, 0xd, 'xfrm0\x00'}) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) r5 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000380), 0x0, 0x0) bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@bloom_filter={0x1e, 0x452, 0xa1fc, 0x8000, 0x1004, r5, 0x3f, '\x00', 0x0, 0xffffffffffffffff, 0x4, 0x2, 0x3, 0x7}, 0x48) 04:57:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r3, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}]}, 0x28}, 0x1, 0x0, 0x0, 0x26020010}, 0x8001) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r6) 04:57:39 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x20, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x44010) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) 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$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, r5, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}]}, 0x3c}}, 0x40010) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x38, r2, 0x421, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x8011}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, r5, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}]}, 0x3c}}, 0x40010) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x38, r2, 0x421, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x8011}, 0x0) (async) 04:57:39 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)={0x34, r1, 0x119, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x97b}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3f}]}, 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)={0x34, r1, 0x119, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x97b}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3f}]}, 0x34}}, 0x0) (async) [ 1338.304656] nbd: couldn't find a device at index 3 04:57:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) sendmsg$NLBL_MGMT_C_REMOVE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, 0x0, 0x2, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4008000}, 0x48080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYBLOB="3000000041774519d1da5eac6355fc88806cf7c079589ca511f67d0b7cea7946b763c85039f4385fa71dd26786f14693c5591a61ff5a4d5afd4edcec63ae9467364a37f84608af27784c20613b1b070f73d9d80046b54c29349dfa0221d896abb2ce84d3388ec4f7e9078f64f500a0fd763e48d235b9e438e9a8a4007b253a0727e018d1381eba146c6b513800868fe94547f16d37cdb62a5da9dfbb9c38dc4cfd08d658282b620d6b68d3c9d0f280c2ea8dca966676659a271155d14bbd09c815ddf1", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200080000000000000004000780"], 0x30}}, 0x0) 04:57:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="08060000000000000000010000000c0002004d2100000000000004000780151293ab225ec5709fc2b90d09b25be292db6cb9f56747004fc0e7489e6c36c72c2d883f4395095f3f259870f8db2642a79f3ac238967ee36fe1cbad3687ef2d197aa5c8e6fbbb42658f52f9676390d399370586a49c9e93d2d12f867d52cc913a80c0543d6ef7aa4db414332767cdfb6d14260d497e0782f22bd6c4acd45f21fed587913bf8a88a184211f75cd63626dacee251fb13c8cb830c3dbad7d0ee03d0c5e434b908c6a85dfe437f66b46b3ca2e4f9a1d9ce08c4309d649f7984dfb379f69c90e8a5bab5e7ded9275100cd911576cd92"], 0x24}}, 0x0) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTALL(r1, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x3c, r5, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}]}, 0x3c}}, 0x40010) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x38, r2, 0x421, 0x0, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x8011}, 0x0) (rerun: 32) [ 1338.432668] nbd: couldn't find a device at index 3 04:57:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r3, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}]}, 0x28}, 0x1, 0x0, 0x0, 0x26020010}, 0x8001) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r6) 04:57:39 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x20, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x44010) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x20, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x44010) (async) 04:57:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="08060000000000000000010000000c0002004d2100000000000004000780151293ab225ec5709fc2b90d09b25be292db6cb9f56747004fc0e7489e6c36c72c2d883f4395095f3f259870f8db2642a79f3ac238967ee36fe1cbad3687ef2d197aa5c8e6fbbb42658f52f9676390d399370586a49c9e93d2d12f867d52cc913a80c0543d6ef7aa4db414332767cdfb6d14260d497e0782f22bd6c4acd45f21fed587913bf8a88a184211f75cd63626dacee251fb13c8cb830c3dbad7d0ee03d0c5e434b908c6a85dfe437f66b46b3ca2e4f9a1d9ce08c4309d649f7984dfb379f69c90e8a5bab5e7ded9275100cd911576cd92"], 0x24}}, 0x0) 04:57:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) sendmsg$NLBL_MGMT_C_REMOVE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, 0x0, 0x2, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4008000}, 0x48080) (async) 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$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYBLOB="3000000041774519d1da5eac6355fc88806cf7c079589ca511f67d0b7cea7946b763c85039f4385fa71dd26786f14693c5591a61ff5a4d5afd4edcec63ae9467364a37f84608af27784c20613b1b070f73d9d80046b54c29349dfa0221d896abb2ce84d3388ec4f7e9078f64f500a0fd763e48d235b9e438e9a8a4007b253a0727e018d1381eba146c6b513800868fe94547f16d37cdb62a5da9dfbb9c38dc4cfd08d658282b620d6b68d3c9d0f280c2ea8dca966676659a271155d14bbd09c815ddf1", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200080000000000000004000780"], 0x30}}, 0x0) 04:57:39 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)={0x34, r1, 0x119, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x97b}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3f}]}, 0x34}}, 0x0) [ 1338.488903] nbd: couldn't find a device at index 3 04:57:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="08060000000000000000010000000c0002004d2100000000000004000780151293ab225ec5709fc2b90d09b25be292db6cb9f56747004fc0e7489e6c36c72c2d883f4395095f3f259870f8db2642a79f3ac238967ee36fe1cbad3687ef2d197aa5c8e6fbbb42658f52f9676390d399370586a49c9e93d2d12f867d52cc913a80c0543d6ef7aa4db414332767cdfb6d14260d497e0782f22bd6c4acd45f21fed587913bf8a88a184211f75cd63626dacee251fb13c8cb830c3dbad7d0ee03d0c5e434b908c6a85dfe437f66b46b3ca2e4f9a1d9ce08c4309d649f7984dfb379f69c90e8a5bab5e7ded9275100cd911576cd92"], 0x24}}, 0x0) 04:57:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r1) (async) sendmsg$NLBL_MGMT_C_REMOVE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x1c, 0x0, 0x2, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4008000}, 0x48080) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)=ANY=[@ANYBLOB="3000000041774519d1da5eac6355fc88806cf7c079589ca511f67d0b7cea7946b763c85039f4385fa71dd26786f14693c5591a61ff5a4d5afd4edcec63ae9467364a37f84608af27784c20613b1b070f73d9d80046b54c29349dfa0221d896abb2ce84d3388ec4f7e9078f64f500a0fd763e48d235b9e438e9a8a4007b253a0727e018d1381eba146c6b513800868fe94547f16d37cdb62a5da9dfbb9c38dc4cfd08d658282b620d6b68d3c9d0f280c2ea8dca966676659a271155d14bbd09c815ddf1", @ANYRES16=r3, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200080000000000000004000780"], 0x30}}, 0x0) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="300000008e0b750edf738d6c374f99684e136f933b6d3dbe65818613e64e7bfcb918f4f6db7f53619f37", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0008fcffffe987ab618a1171970a"], 0x14}}, 0x0) 04:57:39 executing program 1: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x100, 0x200400) ioctl$SNDRV_PCM_IOCTL_RESET(r0, 0x4141, 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$nbd(&(0x7f0000000040), r2) r4 = syz_init_net_socket$x25(0x9, 0x5, 0x0) getsockopt$X25_QBITINCL(r4, 0x106, 0x1, 0x0, &(0x7f00000000c0)) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="247cbff4d7000000", @ANYRES16=r3, @ANYBLOB="21060000001600000000010000004d927d00000000004908078087dcf011660b71ef71c72c4419540e759ed30b3c9160f6bd14f8c3a40b3eb8f42161b0bc57b4f4f5cb6bd0a298159d6b90f2f5aa617b1d4392b7a1e7abe7e6ff1dcb4b15bbcbe79c3e05bc4c5270627b872d6d157e2f131d63176c0422a5b63e10ec37ac4404113b863e15eab276255e7b0c86db80fcfa089da34201bc300ae3ab003be4e33e34ab5a7c09b44b552e5e702392ca313ab493f270caee3b54eb27e574c99bbeb34e74553e164972fefd7efb25c3e3695fb345cb26c5679954581bdecc3c65e75d062468485ae98646c2ee44c56a9b39c9db6b1983529915d2ddc2c0420196d18155ab861482a1bca580126f37d6edac16f96c6a70561efc21606900000000"], 0x24}}, 0x0) [ 1338.625827] nbd: socks must be embedded in a SOCK_ITEM attr [ 1338.635019] nbd: couldn't find a device at index 3 04:57:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x4c, 0x0, 0x300, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x43}}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast2}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x4c}}, 0x14040000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="300000008e0b750edf738d6c374f99684e136f933b6d3dbe65818613e64e7bfcb918f4f6db7f53619f37", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000200)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, r3, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}]}, 0x28}, 0x1, 0x0, 0x0, 0x26020010}, 0x8001) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x3c, r5, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x3c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r6) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r6) [ 1338.685250] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:39 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x20, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x44010) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x20, 0x0, 0x2, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x1}, 0x44010) (async) 04:57:39 executing program 1: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x100, 0x200400) ioctl$SNDRV_PCM_IOCTL_RESET(r0, 0x4141, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = syz_init_net_socket$x25(0x9, 0x5, 0x0) getsockopt$X25_QBITINCL(r4, 0x106, 0x1, 0x0, &(0x7f00000000c0)) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="247cbff4d7000000", @ANYRES16=r3, @ANYBLOB="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"], 0x24}}, 0x0) syz_open_dev$sndpcmc(&(0x7f0000000000), 0x100, 0x200400) (async) ioctl$SNDRV_PCM_IOCTL_RESET(r0, 0x4141, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) syz_init_net_socket$x25(0x9, 0x5, 0x0) (async) getsockopt$X25_QBITINCL(r4, 0x106, 0x1, 0x0, &(0x7f00000000c0)) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="247cbff4d7000000", @ANYRES16=r3, @ANYBLOB="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"], 0x24}}, 0x0) (async) 04:57:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0008fcffffe987ab618a1171970a"], 0x14}}, 0x0) 04:57:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x4c, 0x0, 0x300, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x43}}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast2}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x4c}}, 0x14040000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="300000008e0b750edf738d6c374f99684e136f933b6d3dbe65818613e64e7bfcb918f4f6db7f53619f37", @ANYRES16=r2, @ANYBLOB="21060000000000000000010000000c00060001000000000000000c000200000000000000000004000780"], 0x30}}, 0x0) 04:57:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="0008fcffffe987ab618a1171970a"], 0x14}}, 0x0) 04:57:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="3ba20100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x2c, r4, 0x300, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x1b}}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4008041}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r7, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x4c, r7, 0x4, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x41}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000000}, 0x20000084) 04:57:40 executing program 1: r0 = syz_open_dev$sndpcmc(&(0x7f0000000000), 0x100, 0x200400) ioctl$SNDRV_PCM_IOCTL_RESET(r0, 0x4141, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) (async) r4 = syz_init_net_socket$x25(0x9, 0x5, 0x0) getsockopt$X25_QBITINCL(r4, 0x106, 0x1, 0x0, &(0x7f00000000c0)) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000140)=ANY=[@ANYBLOB="247cbff4d7000000", @ANYRES16=r3, @ANYBLOB="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"], 0x24}}, 0x0) [ 1338.845893] nbd: socks must be embedded in a SOCK_ITEM attr 04:57:40 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$nbd(&(0x7f0000000040), r1) getsockopt$WPAN_WANTACK(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000000c0), &(0x7f00000003c0)=0x4) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="080629bd7000ffdbdf250400000014000600fe8000000000000000000000000000bb0800080064010100080004000300000008000400aaaf33fe101b27cafbd20d637828e74687cdc7c871f1b39c9024802aef9622373acc2cc4b76319e30d73d495e638efdb67fb104d010372b88490cc9cf588323c1d8d06d701a91892d982095e70890c2ee29aa3d6df9b"], 0x40}, 0x1, 0x0, 0x0, 0x44000}, 0xb7a730da8193cce5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[], 0x3c}}, 0x0) 04:57:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x4c, 0x0, 0x300, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x43}}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast2}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}]}, 0x4c}}, 0x14040000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) 04:57:40 executing program 2: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000380)={r0, 0x20, &(0x7f0000000340)={&(0x7f0000000180)=""/116, 0x74, 0x0, &(0x7f00000002c0)=""/123, 0x7b}}, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@bloom_filter={0x1e, 0x7, 0x3f24179f, 0x401, 0x4, r2, 0x1, '\x00', 0x0, r0, 0x1, 0x5, 0x3, 0x8}, 0x48) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)=ANY=[@ANYBLOB='h\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="20002dbd7000fddbdf250400000014000600fe8000000000000000000000000600d0bceb5e002c0000001400060000000000000000000000000000000101080004000000000014000600ff0100000000000000000000000000010800020007000000446214880d8e367feabd7c6fe64968641a5de67064"], 0x68}, 0x1, 0x0, 0x0, 0x801}, 0x8084) [ 1338.955796] nbd: must specify at least one socket 04:57:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000140)={0x3c, 0x0, 0x2, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x48, r6, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x48}, 0x1, 0x0, 0x0, 0x41}, 0x20008000) 04:57:40 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) getsockopt$WPAN_WANTACK(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000000c0), &(0x7f00000003c0)=0x4) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="080629bd7000ffdbdf250400000014000600fe8000000000000000000000000000bb0800080064010100080004000300000008000400aaaf33fe101b27cafbd20d637828e74687cdc7c871f1b39c9024802aef9622373acc2cc4b76319e30d73d495e638efdb67fb104d010372b88490cc9cf588323c1d8d06d701a91892d982095e70890c2ee29aa3d6df9b"], 0x40}, 0x1, 0x0, 0x0, 0x44000}, 0xb7a730da8193cce5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) getsockopt$WPAN_WANTACK(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000000c0), &(0x7f00000003c0)=0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="080629bd7000ffdbdf250400000014000600fe8000000000000000000000000000bb0800080064010100080004000300000008000400aaaf33fe101b27cafbd20d637828e74687cdc7c871f1b39c9024802aef9622373acc2cc4b76319e30d73d495e638efdb67fb104d010372b88490cc9cf588323c1d8d06d701a91892d982095e70890c2ee29aa3d6df9b"], 0x40}, 0x1, 0x0, 0x0, 0x44000}, 0xb7a730da8193cce5) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[], 0x3c}}, 0x0) (async) 04:57:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="3ba20100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x2c, r4, 0x300, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x1b}}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4008041}, 0x0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r7, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x4c, r7, 0x4, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x41}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000000}, 0x20000084) 04:57:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, 0x0, 0x200, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}]}, 0x28}, 0x1, 0x0, 0x0, 0x1}, 0x4040810) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)={0x34, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffd}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ']'}]}, 0x34}}, 0x0) 04:57:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000100)=ANY=[@ANYBLOB="1c000000", @ANYRES64=r1, @ANYBLOB="19010000000000000002030000000800010000000000eb6b4079f0e7156961385fdb90f6e59d59dddfad6988b952b5edd62ce88fa1f83adb8f096079eaa90d42cfa4b03e36dae2aee305148ebd5edf6680"], 0x1c}}, 0x0) 04:57:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r2) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000100)=ANY=[@ANYBLOB="1c000000", @ANYRES64=r1, @ANYBLOB="19010000000000000002030000000800010000000000eb6b4079f0e7156961385fdb90f6e59d59dddfad6988b952b5edd62ce88fa1f83adb8f096079eaa90d42cfa4b03e36dae2aee305148ebd5edf6680"], 0x1c}}, 0x0) 04:57:40 executing program 2: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000380)={r0, 0x20, &(0x7f0000000340)={&(0x7f0000000180)=""/116, 0x74, 0x0, &(0x7f00000002c0)=""/123, 0x7b}}, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@bloom_filter={0x1e, 0x7, 0x3f24179f, 0x401, 0x4, r2, 0x1, '\x00', 0x0, r0, 0x1, 0x5, 0x3, 0x8}, 0x48) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)=ANY=[@ANYBLOB='h\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="20002dbd7000fddbdf250400000014000600fe8000000000000000000000000600d0bceb5e002c0000001400060000000000000000000000000000000101080004000000000014000600ff0100000000000000000000000000010800020007000000446214880d8e367feabd7c6fe64968641a5de67064"], 0x68}, 0x1, 0x0, 0x0, 0x801}, 0x8084) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async) bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000380)={r0, 0x20, &(0x7f0000000340)={&(0x7f0000000180)=""/116, 0x74, 0x0, &(0x7f00000002c0)=""/123, 0x7b}}, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) (async) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) (async) bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@bloom_filter={0x1e, 0x7, 0x3f24179f, 0x401, 0x4, r2, 0x1, '\x00', 0x0, r0, 0x1, 0x5, 0x3, 0x8}, 0x48) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)=ANY=[@ANYBLOB='h\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="20002dbd7000fddbdf250400000014000600fe8000000000000000000000000600d0bceb5e002c0000001400060000000000000000000000000000000101080004000000000014000600ff0100000000000000000000000000010800020007000000446214880d8e367feabd7c6fe64968641a5de67064"], 0x68}, 0x1, 0x0, 0x0, 0x801}, 0x8084) (async) [ 1339.102510] nbd: must specify at least one socket 04:57:40 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) getsockopt$WPAN_WANTACK(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000000c0), &(0x7f00000003c0)=0x4) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="080629bd7000ffdbdf250400000014000600fe8000000000000000000000000000bb0800080064010100080004000300000008000400aaaf33fe101b27cafbd20d637828e74687cdc7c871f1b39c9024802aef9622373acc2cc4b76319e30d73d495e638efdb67fb104d010372b88490cc9cf588323c1d8d06d701a91892d982095e70890c2ee29aa3d6df9b"], 0x40}, 0x1, 0x0, 0x0, 0x44000}, 0xb7a730da8193cce5) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) getsockopt$WPAN_WANTACK(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000000c0), &(0x7f00000003c0)=0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r3) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x2c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0xd, 0x1, 'netdevsim'}]}, 0x2c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADDDEF(r2, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='@\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="080629bd7000ffdbdf250400000014000600fe8000000000000000000000000000bb0800080064010100080004000300000008000400aaaf33fe101b27cafbd20d637828e74687cdc7c871f1b39c9024802aef9622373acc2cc4b76319e30d73d495e638efdb67fb104d010372b88490cc9cf588323c1d8d06d701a91892d982095e70890c2ee29aa3d6df9b"], 0x40}, 0x1, 0x0, 0x0, 0x44000}, 0xb7a730da8193cce5) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[], 0x3c}}, 0x0) (async) 04:57:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000140)={0x3c, 0x0, 0x2, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x48, r6, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x48}, 0x1, 0x0, 0x0, 0x41}, 0x20008000) 04:57:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, 0x0, 0x200, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}]}, 0x28}, 0x1, 0x0, 0x0, 0x1}, 0x4040810) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)={0x34, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffd}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ']'}]}, 0x34}}, 0x0) [ 1339.122718] nbd: must specify at least one socket 04:57:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="3ba20100", @ANYRES32, @ANYBLOB="0c00020000000000000000000800010000000000"], 0x3c}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_ADDDEF(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x2c, r4, 0x300, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x1b}}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4008041}, 0x0) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r6) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r7, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000280)={0x4c, r7, 0x4, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x41}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000000}, 0x20000084) 04:57:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x28, 0x0, 0x200, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}]}, 0x28}, 0x1, 0x0, 0x0, 0x1}, 0x4040810) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)={0x34, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffd}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ']'}]}, 0x34}}, 0x0) 04:57:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000100)=ANY=[@ANYBLOB="1c000000", @ANYRES64=r1, @ANYBLOB="19010000000000000002030000000800010000000000eb6b4079f0e7156961385fdb90f6e59d59dddfad6988b952b5edd62ce88fa1f83adb8f096079eaa90d42cfa4b03e36dae2aee305148ebd5edf6680"], 0x1c}}, 0x0) 04:57:40 executing program 2: r0 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r0, 0x82000000) (async) bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000380)={r0, 0x20, &(0x7f0000000340)={&(0x7f0000000180)=""/116, 0x74, 0x0, &(0x7f00000002c0)=""/123, 0x7b}}, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r2, 0x82000000) (async) bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@bloom_filter={0x1e, 0x7, 0x3f24179f, 0x401, 0x4, r2, 0x1, '\x00', 0x0, r0, 0x1, 0x5, 0x3, 0x8}, 0x48) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r3) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r4, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async, rerun: 64) sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000240)=ANY=[@ANYBLOB='h\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="20002dbd7000fddbdf250400000014000600fe8000000000000000000000000600d0bceb5e002c0000001400060000000000000000000000000000000101080004000000000014000600ff0100000000000000000000000000010800020007000000446214880d8e367feabd7c6fe64968641a5de67064"], 0x68}, 0x1, 0x0, 0x0, 0x801}, 0x8084) (rerun: 64) [ 1339.285606] nbd: must specify at least one socket 04:57:40 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$nbd(&(0x7f0000000040), r1) r2 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES32=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRESOCT=r2, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) 04:57:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x105400, 0x0) r3 = gettid() write$cgroup_pid(r2, &(0x7f0000000240)=r3, 0x12) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) sendmsg$NLBL_MGMT_C_LISTALL(r4, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000080}, 0x4000) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000170800010000000000"], 0x3c}}, 0x0) 04:57:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2002200}, 0xc, &(0x7f00000001c0)={&(0x7f0000000340)={0x84, 0x0, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @rand_addr=' \x01\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x84}, 0x1, 0x0, 0x0, 0x20004000}, 0x4020) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r2, 0x8, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x801}, 0x800) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) [ 1339.361738] nbd: must specify at least one socket 04:57:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x78, r2, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x78}, 0x1, 0x0, 0x0, 0x4009004}, 0x20008000) 04:57:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_VERSION(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000140)={0x3c, 0x0, 0x2, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x24, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x214d}, @NBD_ATTR_SOCKETS={0x4}]}, 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r5) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000080)={0x14, r6, 0x1}, 0x14}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x48, r6, 0x400, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x48}, 0x1, 0x0, 0x0, 0x41}, 0x20008000) 04:57:40 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$nbd(&(0x7f0000000040), r1) r2 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) r3 = socket$rds(0x15, 0x5, 0x0) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES32=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRESOCT=r2, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r2, 0x114, 0x1, 0x0, 0x0) (async) socket$rds(0x15, 0x5, 0x0) (async) setsockopt$RDS_CANCEL_SENT_TO(r3, 0x114, 0x1, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES32=r3, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRESOCT=r2, @ANYRES32=r0, @ANYRES32, @ANYBLOB="0c0002"], 0x3c}}, 0x0) (async) 04:57:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x105400, 0x0) (async) r3 = gettid() write$cgroup_pid(r2, &(0x7f0000000240)=r3, 0x12) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) sendmsg$NLBL_MGMT_C_LISTALL(r4, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000080}, 0x4000) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000170800010000000000"], 0x3c}}, 0x0) [ 1339.431313] nla_parse: 71 callbacks suppressed [ 1339.431320] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1339.446489] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1339.461190] nbd: couldn't find a device at index 3 04:57:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000200)={0x1c, r2, 0x119, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2002200}, 0xc, &(0x7f00000001c0)={&(0x7f0000000340)={0x84, 0x0, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @rand_addr=' \x01\x00'}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x84}, 0x1, 0x0, 0x0, 0x20004000}, 0x4020) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) mmap$snddsp_status(&(0x7f0000ffe000/0x2000)=nil, 0x1000, 0x9, 0x10, r4, 0x82000000) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x20, r2, 0x8, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x801}, 0x800) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) 04:57:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x30, r2, 0x621, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4}]}, 0x30}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r3) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000180)={0x78, r2, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x78}, 0x1, 0x0, 0x0, 0x4009004}, 0x20008000) 04:57:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x14, r2, 0x400}, 0x14}}, 0x0) [ 1339.556414] nbd: must specify at least one socket 04:57:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x105400, 0x0) r3 = gettid() write$cgroup_pid(r2, &(0x7f0000000240)=r3, 0x12) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) sendmsg$NLBL_MGMT_C_LISTALL(r4, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000080}, 0x4000) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000170800010000000000"], 0x3c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$sw_sync_info(0xffffffffffffff9c, &(0x7f0000000200), 0x105400, 0x0) (async) gettid() (async) write$cgroup_pid(r2, &(0x7f0000000240)=r3, 0x12) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000007c0), r4) (async) sendmsg$NLBL_MGMT_C_LISTALL(r4, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, 0x0, 0x100, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010102}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000080}, 0x4000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="21060000000000000000010000001400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c00020000000000000000170800010000000000"], 0x3c}}, 0x0) (async) [ 1339.637359] nbd: couldn't find a device at index 3 [ 1339.809116] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1339.819655] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1340.018591] ================================================================== [ 1340.026133] BUG: KASAN: use-after-free in ex_handler_refcount+0x164/0x1a0 [ 1340.033047] Write of size 4 at addr ffff8880917f3358 by task systemd-udevd/21114 [ 1340.040671] [ 1340.042277] CPU: 0 PID: 21114 Comm: systemd-udevd Not tainted 4.14.275-syzkaller #0 [ 1340.050041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1340.059373] Call Trace: [ 1340.061951] dump_stack+0x1b2/0x281 [ 1340.065558] print_address_description.cold+0x54/0x1d3 [ 1340.070832] kasan_report_error.cold+0x8a/0x191 [ 1340.075477] ? ex_handler_refcount+0x164/0x1a0 [ 1340.080044] __asan_report_store4_noabort+0x68/0x70 [ 1340.085045] ? ex_handler_refcount+0x164/0x1a0 [ 1340.089601] ex_handler_refcount+0x164/0x1a0 [ 1340.093985] ? ex_handler_clear_fs+0xb0/0xb0 [ 1340.098376] fixup_exception+0x8a/0xd0 [ 1340.102271] do_trap+0x61/0x250 [ 1340.105687] ? do_error_trap+0x1d0/0x2d0 [ 1340.109742] do_error_trap+0x132/0x2d0 [ 1340.113635] ? math_error+0x2d0/0x2d0 [ 1340.117423] ? flags_string.cold+0x1b1b/0x6aff [ 1340.122003] ? __mutex_lock+0x360/0x1310 [ 1340.126410] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1340.131233] invalid_op+0x1b/0x40 [ 1340.134665] RIP: 0010:flags_string.cold+0x1b1b/0x6aff [ 1340.139832] RSP: 0018:ffff8880b029fcd0 EFLAGS: 00010296 [ 1340.145179] RAX: 0000000000000000 RBX: ffff8880917f3358 RCX: ffff8880917f3358 [ 1340.152430] RDX: 0000000000000004 RSI: 0000000000000003 RDI: 0000000000000001 [ 1340.159678] RBP: ffffffff89513c20 R08: 0000000000000000 R09: 0000000000000002 [ 1340.166931] R10: 0000000000000000 R11: ffff8880aaf72180 R12: 0000000000000000 [ 1340.174177] R13: ffff88809027d384 R14: ffffed101204fabe R15: dffffc0000000000 [ 1340.181440] nbd_release+0xf3/0x150 [ 1340.185057] ? nbd_queue_rq+0xc50/0xc50 [ 1340.189008] __blkdev_put+0x5aa/0x800 [ 1340.192786] ? revalidate_disk+0x1f0/0x1f0 [ 1340.197000] ? locks_remove_file+0x2cd/0x420 [ 1340.201398] ? blkdev_put+0x75/0x4c0 [ 1340.205090] ? blkdev_put+0x4c0/0x4c0 [ 1340.208867] blkdev_close+0x86/0xb0 [ 1340.212471] __fput+0x25f/0x7a0 [ 1340.215731] task_work_run+0x11f/0x190 [ 1340.219606] exit_to_usermode_loop+0x1ad/0x200 [ 1340.224170] do_syscall_64+0x4a3/0x640 [ 1340.228035] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1340.233202] RIP: 0033:0x7fed0b8a6270 [ 1340.236898] RSP: 002b:00007ffeb0581f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 1340.244591] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fed0b8a6270 [ 1340.251835] RDX: 000000000aba9500 RSI: 0000000000000000 RDI: 0000000000000007 [ 1340.259082] RBP: 00007fed0c760710 R08: 000055f3893cb870 R09: 0000000000000018 [ 1340.266381] R10: 000055f3893d97d8 R11: 0000000000000246 R12: 0000000000000000 [ 1340.273624] R13: 000055f3893dfbd0 R14: 0000000000000003 R15: 000000000000000e [ 1340.280874] [ 1340.282478] Allocated by task 21013: [ 1340.286174] kasan_kmalloc+0xeb/0x160 [ 1340.289950] kmem_cache_alloc_trace+0x131/0x3d0 [ 1340.294594] nbd_dev_add+0x7c/0x800 [ 1340.298202] nbd_genl_connect+0x3a4/0x1400 [ 1340.302434] genl_family_rcv_msg+0x572/0xb20 [ 1340.306816] genl_rcv_msg+0xaf/0x140 [ 1340.310501] netlink_rcv_skb+0x125/0x390 [ 1340.314536] genl_rcv+0x24/0x40 [ 1340.317791] netlink_unicast+0x437/0x610 [ 1340.321940] netlink_sendmsg+0x648/0xbc0 [ 1340.325973] sock_sendmsg+0xb5/0x100 [ 1340.329664] ___sys_sendmsg+0x6c8/0x800 [ 1340.333613] __sys_sendmsg+0xa3/0x120 [ 1340.337393] SyS_sendmsg+0x27/0x40 [ 1340.340913] do_syscall_64+0x1d5/0x640 [ 1340.344776] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1340.349934] [ 1340.351535] Freed by task 21013: [ 1340.354877] kasan_slab_free+0xc3/0x1a0 [ 1340.358829] kfree+0xc9/0x250 [ 1340.361926] nbd_put.part.0+0x100/0x140 [ 1340.365874] nbd_genl_connect+0xfa9/0x1400 [ 1340.370088] genl_family_rcv_msg+0x572/0xb20 [ 1340.374472] genl_rcv_msg+0xaf/0x140 [ 1340.378175] netlink_rcv_skb+0x125/0x390 [ 1340.382232] genl_rcv+0x24/0x40 [ 1340.385491] netlink_unicast+0x437/0x610 [ 1340.389528] netlink_sendmsg+0x648/0xbc0 [ 1340.393563] sock_sendmsg+0xb5/0x100 [ 1340.397256] ___sys_sendmsg+0x6c8/0x800 [ 1340.401215] __sys_sendmsg+0xa3/0x120 [ 1340.405012] SyS_sendmsg+0x27/0x40 [ 1340.408531] do_syscall_64+0x1d5/0x640 [ 1340.412392] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1340.417554] [ 1340.419170] The buggy address belongs to the object at ffff8880917f3280 [ 1340.419170] which belongs to the cache kmalloc-512 of size 512 [ 1340.431817] The buggy address is located 216 bytes inside of [ 1340.431817] 512-byte region [ffff8880917f3280, ffff8880917f3480) [ 1340.443671] The buggy address belongs to the page: [ 1340.448577] page:ffffea000245fcc0 count:1 mapcount:0 mapping:ffff8880917f3000 index:0x0 [ 1340.456698] flags: 0xfff00000000100(slab) [ 1340.460828] raw: 00fff00000000100 ffff8880917f3000 0000000000000000 0000000100000006 [ 1340.468694] raw: ffffea000259a120 ffffea0002a2aee0 ffff88813fe74940 0000000000000000 [ 1340.476551] page dumped because: kasan: bad access detected [ 1340.482236] [ 1340.483849] Memory state around the buggy address: [ 1340.488756] ffff8880917f3200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 1340.496111] ffff8880917f3280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1340.503470] >ffff8880917f3300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1340.510812] ^ [ 1340.517042] ffff8880917f3380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1340.524420] ffff8880917f3400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1340.531754] ================================================================== [ 1340.539088] Disabling lock debugging due to kernel taint [ 1340.548056] Kernel panic - not syncing: panic_on_warn set ... [ 1340.548056] [ 1340.555438] CPU: 0 PID: 21114 Comm: systemd-udevd Tainted: G B 4.14.275-syzkaller #0 [ 1340.564438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1340.573782] Call Trace: [ 1340.576360] dump_stack+0x1b2/0x281 [ 1340.579982] panic+0x1f9/0x42d [ 1340.583188] ? add_taint.cold+0x16/0x16 [ 1340.587137] ? ___preempt_schedule+0x16/0x18 [ 1340.591619] kasan_end_report+0x43/0x49 [ 1340.595578] kasan_report_error.cold+0xa7/0x191 [ 1340.600233] ? ex_handler_refcount+0x164/0x1a0 [ 1340.604790] __asan_report_store4_noabort+0x68/0x70 [ 1340.609870] ? ex_handler_refcount+0x164/0x1a0 [ 1340.614426] ex_handler_refcount+0x164/0x1a0 [ 1340.618808] ? ex_handler_clear_fs+0xb0/0xb0 [ 1340.623198] fixup_exception+0x8a/0xd0 [ 1340.627061] do_trap+0x61/0x250 [ 1340.630330] ? do_error_trap+0x1d0/0x2d0 [ 1340.634366] do_error_trap+0x132/0x2d0 [ 1340.638227] ? math_error+0x2d0/0x2d0 [ 1340.642002] ? flags_string.cold+0x1b1b/0x6aff [ 1340.646614] ? __mutex_lock+0x360/0x1310 [ 1340.650669] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1340.655505] invalid_op+0x1b/0x40 [ 1340.658939] RIP: 0010:flags_string.cold+0x1b1b/0x6aff [ 1340.664126] RSP: 0018:ffff8880b029fcd0 EFLAGS: 00010296 [ 1340.669476] RAX: 0000000000000000 RBX: ffff8880917f3358 RCX: ffff8880917f3358 [ 1340.676893] RDX: 0000000000000004 RSI: 0000000000000003 RDI: 0000000000000001 [ 1340.684237] RBP: ffffffff89513c20 R08: 0000000000000000 R09: 0000000000000002 [ 1340.691486] R10: 0000000000000000 R11: ffff8880aaf72180 R12: 0000000000000000 [ 1340.698742] R13: ffff88809027d384 R14: ffffed101204fabe R15: dffffc0000000000 [ 1340.706000] nbd_release+0xf3/0x150 [ 1340.709601] ? nbd_queue_rq+0xc50/0xc50 [ 1340.713551] __blkdev_put+0x5aa/0x800 [ 1340.717334] ? revalidate_disk+0x1f0/0x1f0 [ 1340.721550] ? locks_remove_file+0x2cd/0x420 [ 1340.725931] ? blkdev_put+0x75/0x4c0 [ 1340.729617] ? blkdev_put+0x4c0/0x4c0 [ 1340.733397] blkdev_close+0x86/0xb0 [ 1340.737002] __fput+0x25f/0x7a0 [ 1340.740262] task_work_run+0x11f/0x190 [ 1340.744132] exit_to_usermode_loop+0x1ad/0x200 [ 1340.748686] do_syscall_64+0x4a3/0x640 [ 1340.752552] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1340.757729] RIP: 0033:0x7fed0b8a6270 [ 1340.761430] RSP: 002b:00007ffeb0581f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 1340.769221] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fed0b8a6270 [ 1340.776466] RDX: 000000000aba9500 RSI: 0000000000000000 RDI: 0000000000000007 [ 1340.783721] RBP: 00007fed0c760710 R08: 000055f3893cb870 R09: 0000000000000018 [ 1340.790965] R10: 000055f3893d97d8 R11: 0000000000000246 R12: 0000000000000000 [ 1340.798214] R13: 000055f3893dfbd0 R14: 0000000000000003 R15: 000000000000000e [ 1340.805548] Kernel Offset: disabled [ 1340.809153] Rebooting in 86400 seconds..