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0x1000}], 0x6, &(0x7f0000006000)={0xb0, 0x1, 0x7f, "57b740b91033c04ac3cf1134146aab8062419e1858e8d87e2e9dd6ad7e1648ab7b695ba2fbc398a6bc9c3ad107503cfc29f764e35071150803ac99abd87439871cd14fcbc9edd28d4e497e1dfbd61b8433dd3217b51c29149a6ad48ff8e45c58cdc850fb576cc96ab51943a38f34ea0e2c51e931a6c813c4b3554505108fca972faf6c8de37782d7bc56e430a3e2c6d35ded117ca0dbc39261fa22c6f60cdaea"}, 0xb0, 0x8880}, {&(0x7f00000060c0)={0x27, 0x1, 0x1, 0x3, 0x19, 0x80, "3e3ffc9ebd3b669d21e1276a8e872fee705b73d51c4498ebc7611e702c942c500ebbc07f3b4be4ec6d5e63407f1bce318d6f06b56269bdcfb61be94bf0f456", 0x1}, 0x60, &(0x7f0000007300)=[{&(0x7f0000006140)="5ff50eaec49a1c32867ec79953bef7c941c590ba2816bb39782a4079c9bc", 0x1e}, {&(0x7f0000006180)="8255d2c7945a0ed34ebbd1988c069614e7dc675b6d21ee4131bc770016a86d39bdccf11d3b948785361a2a06c79bca2dff290bd11b8a5ca1ee9f4e6861f3b48995713534fab0103a89075792befe1c0ee591d9c5e55b1933beda6f3defa4625c05d6e815", 0x64}, {&(0x7f0000006200)="3608924d066a5fca3346d71aba9c9f1e142a010b21728e7135aabb0d33e1a8162d", 0x21}, {&(0x7f0000006240)="77db2987a92b41b6fef5e06db9e565e8dfa0dabd95b370270838babbe501dc81594deaea1ebc66bb3d8a84360ec4d5363f0f2d50ece939d7370f0bd0e26975ce41e4c8757e09ae40c204232ab07c6718073975b2aeaadd003ffb6d9d03ecdb9883db214dc9267a5d090af24715b7091842637d32f5792db8cf91d898fff23234132fe872700094090136f1861b1bd906bd8e3398118f567cbe13aedbff74f2063acf27dc82a4694d535ed9ade06d0f9858a49d49494348d5873a772d586487460a049bc5bcd9d16e5f2c5e9461ac9f105b3e57aaf4831e19f5973527e3209067be876ec25e32205b1bf3569ad65232a7e8713eefc217a330e782ed9a7681f46bc03ab632016995c93985cadabcf509aac1cd212e9739f5d9e5ae616e5031683ca535850b6178794485f54a375bc1c56ee2536fb1e12a97507588112e2bb03d884095e3a1aee821bc94c3b2e67a989de00a712dca24c9a3b03e5b6d2701b89641dd9442d69f4ce25b3f7ef70c5b3e5279b964028bdb515569ce657ec7645a50f5dfa382ee5f89a67dc68b5158d34ad61ea2729228f18bcec596703da6e885d9a8bcd8787f8906e641db2db825221ccbb7f0a7ee87d190522ee87090602ba7076257506ddf0edafd70eb4274ef5898de500258d8004712ac9802ba3a32e31d7d379c61d46c91d0ea7a87178676589f97907e66f4a77f2b233d96b07adbd1f17c396e843b6cefec23744b72de8e8915cf5ccdb4ef40c7729fcac4ea960563c34d9b69c0e92f132912bbbe41c7942c2ba0a62c4998e11038608f680817803fee0fcbd9421ea3f8b84551ed14a725582cbb5efbcf07184c69f6549e3dd9dfdb60a715bc34f8d7f56580a1a61ec9270c66a176e2b751d78a1074eb94f93add0e37c0abc7a44f2148410c93f3539b8c8c399090040df46ed89961de8cd15c33c1481918026ae810319fcc91caba9bed23509ee0e2328a262a6607263d49cabc12feb44e9311f5b7ae4cee5c38dab7a61834bf4ac6d58363593c92cd01c4db73e28accf27feacb4800dc1badcff440554ebc243ac6d0fae6fce74da98d35f285eb4aa6d260a642764be978769c705d5b49e18ad5dd0cce85af37c1aaaec39f37f2105bd961697aac1a99e1fef6237ef7b102d3a9dac06adeb232420852f468aab5bc935e2d9a0bf61431937c82bfa3eed37195f73c1831e0ba9be82dd3daaf1da74c987c99b2010982e2332fd9691796d5e50b69e2dd629010eb3e6550078c1a5875a346ac67c2b34f0455f9e0de30969fd3a6a3ff3655304bdf92811c0481c63ccac2d126e8afa357f955f5a23fb7d6cc5f29248930350cdad5500aec38e19ca6ba917b7424092a730cc246a5355625fb64776eb3969dd00804b5bcc1b6a21c00692a9fed48c3e2ecffb95858531caebeb9a96e641113bcd4cfa1b11e0c9b28db2765e1133e4f83ece22929d6465b14a2b702967a4f2d14079e1760e62cd189025044e1254bebdd5faca7aded22b2f7cfd0605d323969c2bec632e3b8315662152f3a700bae2dfbaf9dacca1fd86ac04a4d4d11c522428b21376e2a2cfd9b75df4faa047c788420cddd0f349fb268383276a9653189f3c97c21acf8196f6e7b5a23817429cc0d76ba23a6fda7179cb845f91cd0904448d3ebb093bd02f85f7084ae9f7fe51dda4de991307f96c32adaf2f828bea12e01fc0c4d4ef4327b1e93377374e55882082a725b77f628b65fee0347317332c6fc943be7f7563fdf12655dbb103f1203b7e5121598a8105c432f5691fa2fade2b69c7b4dde462ab587def7d7d1acd94c22455ca0606c6cb9fabe78790747149e6579eaf3096672a0036d13570695a76f07dc60f5fa503b9ed3e9bdc29a0ab6a8ae4419f179a972c89695819bc2df48fd816a9ed97402d7f987a41f396a0040059429e3fc463a00125e560af020aeb707998d749aae0b9b8a58e4576a2588104afd33578e88bef73ee95a488e500acfab350d635d1fa31c9867207e2ecc5b3593aac0a9fd2bf8f10fc25175d857496a9b3a5c047f2c167ca5e632e21aa6dc9716fe94e9d2be045946e0d1278a75c270a23783de407c285d4a12f47943dc57c3ba131816b0c1c7feb5d0b763a68edddbf5794b9890e0d8357075b239035f1076683403c4a496b4ad912380f9186221175c860e96d1438085e18b533d20fb5bdc0e59fc1aadaa4da44d56a0790af47b6c1dc8d886ac39ae9bc9c6fed28bc5ba2b454010e115b1bb06debad353e86188527a8b9b44d24ad2fc8e77544e2a0a27f15bba55393f8b930f732262cb841b7d3e9089810c0c251c805b26000d0d869afde51ba02c8cfb95386c135b359b4c4ad3fc275de0ff3c76e1aa35b82ba9ec8344396df3d49540d8d472fb7d4fb99ed709638f595d55c74ad15cd00c9ec2ea1c6cac275c9473a95813171bc6828c1e22541b37cb72f8065db7c27f1348d0f0a64b636cb3a48a399698ccc66c18fab70524d031ce3cbcae68de9a6e16b07f761e2223c865fb2b4de2d195e1fa60d882442d50b61d94f5242d78d76b157921d6034f1858935be4c675fca475c3c6b20653dee439cb5791a4d303033b59e8aa7e264168b203c07e03798eae2e23bae3cad8bde22a522579bec1184a0d10644d170f6b091606e922197487836c6e2c20d7e47313a017f699acf74c09329bdbd3cc2f1ca4097374157298bd83c93a5814a22e0a04c27c9527dc36340b56d11dcfa602f38241404f5aa8ae3f773fb754ed893481c6a30bcd499818d15c171ab7bab9dfdd9e8d7256a38fc75c2fb2dbfcbe70a124053a9bf6427e44e36cfc7231a7152f6c524e8f59fab7fe9ca01cc8a198dbc0518071d010c42e552f00ed449ae555ed99cf91dacb67b5a077a1ece3ee08c9e1ba5c80cde52842ca88b7c8c31407b4195b2be49fef52fa7e7359a993a0eee447a6879c37d3d80d23c00e99ee06a30aca0ef2fd507c1858a288d3bb9f007688591cbbb44a94a15638ea0360672619f34040f2e5eff7bc2e6b533ccb0729c76f2e6bf117acd82ca39f5613d6aa8f287bb3f3cc10bbc4a0e65044a2aaaba5d04e384de57c9020aec40e6283829cc51ecece734b15a39147e3e315efdfa9b97e58f87d7e1d86139a2da43cb6cc8ee25f147a903b1bdc4b59dca78bf3bee39ed237f86f661f9a7f7cc01023832fc0e883596e873fa66727f1d8b7b1f6c7310d7df2e92c93b02f8e967098a9d15947718d1c1ff9be744666519c02c82a7d3cfd39bd5f502829ee3093b286fc48ad8aa6d825358ee1b915408f8156e2a47e4a503329093592f65698f6afb140f26cf16491942fab133a40c10c6fa5f0867bb1e9bea82e9a40c0390d2a81373df7ea6c1f7795aa7de421b076e18427cecbfec140a95d2190f60f79e51ce9a742bf51442900cbbe47c48473919ea29f43ccd69d5c957c5a982d97684c6974e95480fc925623f690a0ffe93c0e232752bc90a73c7f8ff78cb19d9d3b1d4f09fc2d230044f7d08dc402948406a82c0eb427a925f8aeb943888e31531276f75029b0bd8f9ab66a01549c79da94aff1157d94edbe88d48bb1647349bc3c8e04280cc207c8e401b480e56b6dd4ff893644af10e989ae35fac19de59dca4190fe6a6e5edf4435f7b7189afede9a7f92c05b0fb5af23aa49177a493bc87daf58bfd464c2de16aff26563965b832150514ff54b525dba0e8a3f51e6b01de34b05ef629ea5ddca16963eab41fe2b1a8ca1c2caf9d829dbd875e8584f07feb107d8b8ac0ddf968e13c8f4c3b84c7596ffccdf9a5d00ec52f2320d487245e3fb584b9ec162aeddbbdd40675f8b4c957d1381a50cfcbd0f1ffc09df7d124c54497dde655c11561df8ce5673d0377e968d95f74cbb5d38f82a290b66fff9b51a405c334ccc65c8fd53b4202a6d37559eec18b25c4795cc5a69346a04a34e391909fa4273007700178983a6a25925af88ed4d8471e73efba2b1826359acfd6389f3e799b6da8166dc776c0d4a7552d9017a159a6ca5f5621dc2e3072fb088011d7819fc52d07e93e56f0b2ea3860189e12fa5a13076855b8a10242de54e8f2a0bb3afe6c1e89f1daca42c9ba65f4ba42463499ca2f22ac9231ac84f539dfc6a271a4b1f5349c74186b482b19b1ee631c013f296590e8fb15ee0de46f2fef84b43cc2ef67c90da506dddb683c63cf3858024bd65bb43b2e8298ea49be995facb0dcf8a3e02dc49f4a77c3e739e89faf76e04c05f628c2add54de3877b494612e8e1072b1e1f3fe1c8a3c542ad72546be3a8dd2fad5eb10329f9bb04a9c840664ed07388126469b16c8edc0586195434e2256171e6ac6bc08a85409139d2e0ac34dc30a9d8d6e1561fbe6a952f11eaf91e88f9c14a86b022a8bd4252651d303832c13f00deb9656b3f1b7784e09834c01dbb2270b11cf656c516e4396df08f94b451dbea9c93c388c236f11d8adcabafdfe0b3ce52b71f888a75ada275d4345e86f65f3480610510a0e58117f68ee9cda04a7ac0b7a63ff766431fe992ce559afae706bb16abdd16ec80ed344a988597c6c931d7decc8e3370b7b68f6d5acec1169cb29adc75ae98fb23f25e2462b9426e699704d09fbb573cf80f127cced91f8a975dd780b6f6cc06c67a72d3b6ce1d7c58ddd514b3ef4ea6f7c6f6172496a2aba93d970bc3799eded7cdb17aa27d19ce10088dd8d2304ab36c4f69fd574e298979f347c7b7b1cda0176aa7de4d5aca150e2bb5658eba60d8c25f21052ebd4c9d245c2e9e00e33ff7e40f550938828a26f44c64d558062b01d26227df158bc660bd5f49b0c89d07df6d515e6ef04b7823893a130910738db3ea5d36b85aa2e43f1e6a5f2c0acd7d4001368259caf1d4762850060edfc736eccf160402ff0efb9521ea3fedcf9f6e5e56f5fa2202e6f3bdf54119c27ef195b7eec3bb89339b2652f1c7adf668be68fdc37170e5620511174b368cb9ff2230caa7b8f78804295bb4031b8c497d03d3c2751328c45b31e520b9b0b36879a20caa14bae992b33b824a3f38459e2268e62c82600369e66cfeb4e77f894b46f1fc37c9117c5ada4f3de6b6c3f8bbad718ab2774379429cf6b509c58fe9609a55970b839ee5e1145043ab1c2949c4a5607304ae050c93599a90e57a54098d4f140d39b2f8a92d599ed15aaa8c6ed93f1962a9edd7e831235a6debc23f45f62c89278d1ffe8b314fac7044642312f9ea66934c1e7f8c489343c17d38efa4d5dc2d763a82639b9f8a033495b5392ebf643b06526453f6ac37cf2ca6c7a2ab5cd4265475329063faa1979b5589efedbd9607c3dca90c5e8834e36b1716b02a5515e138de9b75e75529c08c17668fb6fdcf1fc3165bbfaf7671c1d9a62ed3c33279746a16d26eb5f729f62cdc2774c76f45809e8d9758f582185af24b8c1717021c55e99de301dd5e38b7738b67725c0ef9effd202a1735ef041cbd977dcba48876f4ae72c199c0382bbc815c67ad00a067666c5d8606629cbf31cc9c88f13dfdb3f4177acba42c212a0c364a23015fdcf6ede2d4f764734baa635cf1633855311979cccef947d54f7f4cd3e7ef19f6fda7ea393ef7b7dcc88c19b18e70299891a44b4f55ab3f74bb05efe0e5d9677db5b91c255a39e76cd422043a28e22a0e76b59f4cd8b48c331c280e2fda06116363f9ebf5c1c680ff644619cb148face8fe2113bbae39efb4a93b2912897165ec251293213a151dcfb256fe36b4676c9e86b4f5fc923c6fc2ae856d670b906eb182d1d7c2c11cdc80b8de1da4222d41374650db387d5142e2391d4ea", 0x1000}, {&(0x7f0000007240)="a1d7fb08553bd1f53e73f6349ceceb1e43c5b212aba94e921af4a186fd0c0a30a05119c4ac72395ea6e2b7a10dd4b0d2b058", 0x32}, {&(0x7f0000007280)="081086f9925d8317c0bd4de8f60669a1099dadf0e029e18b12dc9ac5ca6cef315abe673bf5d9ad84a13b55bf402b2943c4412729a72463456a967c88a91534ef5b", 0x41}], 0x6, &(0x7f0000007380)={0xf8, 0x29, 0x3, "e02274fed6aa7d2ce45a6c55b39d2e4ccd9c645d852d304b672f35ed4a540f33d8028492aa0accd666695e9f2094c078ffd116905b051b24f00c66e3f4792a6d354b46fda1dc63857fcfca65b69263bb85288cdb39db0bd59c58b93ebed861c02c1bb4860f6231c0a7db2142eae3bcb95a9365d056180c7225079633e020afecd4e24b7e179afdb271c8865b4b42d8f2360f953ff32f6b910ffef51355e68e1fb6af441164488a8111be205ff94764c7e860661a9824bd1881196ed04bfd48a4b0ae0f1a7d9fdf1b170da8d0812ebe0abc65037f39bb82d36ca01a418a015ab4696bc2"}, 0xf8, 0x40000}], 0x6, 0x8004) (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$nbd(&(0x7f0000000140), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) [ 2166.341960] nbd: couldn't find a device at index 32 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff00000000"], 0x24}}, 0x0) 20:10:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x400, 0x40, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x1000c080}, 0x4000000) 20:10:03 executing program 1: ioctl$SOUND_OLD_MIXER_INFO(0xffffffffffffffff, 0x80304d65, &(0x7f0000000040)) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) write$FUSE_STATFS(r3, &(0x7f0000000100)={0x60, 0x0, 0x0, {{0x3, 0x4, 0x13d299d9, 0x0, 0x1f, 0x8001, 0x4, 0x8}}}, 0x60) write$nbd(r2, &(0x7f0000000340)={0x67446698, 0x0, 0x2, 0x2, 0x2, "5286cb11ba91c151bf872bcaf53ed88337fb79ac5d66f81d5682e157e5c5e7343f05143ed2f2aa130ce82f011d6428e9acc1e6e7cb6c689cefe2c4e775372a8c4aad52e54037fb221f268bd82896cf6ee628d99addedc5bf0f15722e077c7b433b6dbe64e3fe4d7c26b875e9f2a523f232286c1f945218181f349dccd7a0d1706da090abb9882996a30b38aa9f2b22651f23069ebdbe8caeae99c4aa214af795a2764269ab0f19eba81be69d520b1c82cce03518b049a1562455e212a6a55011d577c17b1ce59236de6c545e"}, 0xdc) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000440)=ANY=[@ANYRES8=r0, @ANYRES64=r4, @ANYBLOB="000000000000000000fa06e67d8ed800000057fe0000000000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20040094}, 0x848e3f977aa103c6) r5 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r5, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r5) ioctl$SOUND_OLD_MIXER_INFO(0xffffffffffffffff, 0x80304d65, &(0x7f0000000040)) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) write$FUSE_STATFS(r3, &(0x7f0000000100)={0x60, 0x0, 0x0, {{0x3, 0x4, 0x13d299d9, 0x0, 0x1f, 0x8001, 0x4, 0x8}}}, 0x60) (async) write$nbd(r2, &(0x7f0000000340)={0x67446698, 0x0, 0x2, 0x2, 0x2, "5286cb11ba91c151bf872bcaf53ed88337fb79ac5d66f81d5682e157e5c5e7343f05143ed2f2aa130ce82f011d6428e9acc1e6e7cb6c689cefe2c4e775372a8c4aad52e54037fb221f268bd82896cf6ee628d99addedc5bf0f15722e077c7b433b6dbe64e3fe4d7c26b875e9f2a523f232286c1f945218181f349dccd7a0d1706da090abb9882996a30b38aa9f2b22651f23069ebdbe8caeae99c4aa214af795a2764269ab0f19eba81be69d520b1c82cce03518b049a1562455e212a6a55011d577c17b1ce59236de6c545e"}, 0xdc) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000440)=ANY=[@ANYRES8=r0, @ANYRES64=r4, @ANYBLOB="000000000000000000fa06e67d8ed800000057fe0000000000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20040094}, 0x848e3f977aa103c6) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r5, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r5) (async) [ 2166.397581] nbd: couldn't find a device at index 32 20:10:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xd8, r2, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x82}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}T'}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x44d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xc2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0xd8}, 0x1, 0x0, 0x0, 0x40884}, 0x4000040) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:03 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x400, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @rand_addr=0x64010100}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}]}, 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) 20:10:03 executing program 5: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="07842c00004b0000000a7dd1b7f892e79f7a918e2a3c80fd7244d6e56ace95cdd382defb1972511d6ecacf311544d67b04d532a0483ebc4b3f788a4be63dde8590671d259aa9169b7c37fec3b59f8e5fc375a28114c45adfc652f0ac5912e445495708fd1a3d1eab5401a58e3333200000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c000300090000000000000008000155b2982361cb0f63107ded3328d4a116bc93b9a6f15db12e90ae790ab363a74f01710f26cf662a18729b924c019f20"], 0x34}}, 0x0) openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0) openat$audio(0xffffffffffffff9c, &(0x7f0000000040), 0x280c40, 0x0) 20:10:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x400, 0x40, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x1000c080}, 0x4000000) 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff00000000"], 0x24}}, 0x0) 20:10:03 executing program 1: ioctl$SOUND_OLD_MIXER_INFO(0xffffffffffffffff, 0x80304d65, &(0x7f0000000040)) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) write$FUSE_STATFS(r3, &(0x7f0000000100)={0x60, 0x0, 0x0, {{0x3, 0x4, 0x13d299d9, 0x0, 0x1f, 0x8001, 0x4, 0x8}}}, 0x60) write$nbd(r2, &(0x7f0000000340)={0x67446698, 0x0, 0x2, 0x2, 0x2, "5286cb11ba91c151bf872bcaf53ed88337fb79ac5d66f81d5682e157e5c5e7343f05143ed2f2aa130ce82f011d6428e9acc1e6e7cb6c689cefe2c4e775372a8c4aad52e54037fb221f268bd82896cf6ee628d99addedc5bf0f15722e077c7b433b6dbe64e3fe4d7c26b875e9f2a523f232286c1f945218181f349dccd7a0d1706da090abb9882996a30b38aa9f2b22651f23069ebdbe8caeae99c4aa214af795a2764269ab0f19eba81be69d520b1c82cce03518b049a1562455e212a6a55011d577c17b1ce59236de6c545e"}, 0xdc) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000440)=ANY=[@ANYRES8=r0, @ANYRES64=r4, @ANYBLOB="000000000000000000fa06e67d8ed800000057fe0000000000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20040094}, 0x848e3f977aa103c6) r5 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r5, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r5) ioctl$SOUND_OLD_MIXER_INFO(0xffffffffffffffff, 0x80304d65, &(0x7f0000000040)) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) write$FUSE_STATFS(r3, &(0x7f0000000100)={0x60, 0x0, 0x0, {{0x3, 0x4, 0x13d299d9, 0x0, 0x1f, 0x8001, 0x4, 0x8}}}, 0x60) (async) write$nbd(r2, &(0x7f0000000340)={0x67446698, 0x0, 0x2, 0x2, 0x2, "5286cb11ba91c151bf872bcaf53ed88337fb79ac5d66f81d5682e157e5c5e7343f05143ed2f2aa130ce82f011d6428e9acc1e6e7cb6c689cefe2c4e775372a8c4aad52e54037fb221f268bd82896cf6ee628d99addedc5bf0f15722e077c7b433b6dbe64e3fe4d7c26b875e9f2a523f232286c1f945218181f349dccd7a0d1706da090abb9882996a30b38aa9f2b22651f23069ebdbe8caeae99c4aa214af795a2764269ab0f19eba81be69d520b1c82cce03518b049a1562455e212a6a55011d577c17b1ce59236de6c545e"}, 0xdc) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000440)=ANY=[@ANYRES8=r0, @ANYRES64=r4, @ANYBLOB="000000000000000000fa06e67d8ed800000057fe0000000000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20040094}, 0x848e3f977aa103c6) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r5, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r5) (async) 20:10:03 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 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) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x400, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @rand_addr=0x64010100}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}]}, 0x30}, 0x1, 0x0, 0x0, 0x8000}, 0x4000000) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) 20:10:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xd8, r2, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x82}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}T'}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x44d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xc2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0xd8}, 0x1, 0x0, 0x0, 0x40884}, 0x4000040) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 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$nbd(&(0x7f0000000140), r0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r4, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r5, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xd8, r2, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x82}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}T'}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x44d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xc2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0xd8}, 0x1, 0x0, 0x0, 0x40884}, 0x4000040) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) 20:10:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="07842c00004b0000000a7dd1b7f892e79f7a918e2a3c80fd7244d6e56ace95cdd382defb1972511d6ecacf311544d67b04d532a0483ebc4b3f788a4be63dde8590671d259aa9169b7c37fec3b59f8e5fc375a28114c45adfc652f0ac5912e445495708fd1a3d1eab5401a58e3333200000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c000300090000000000000008000155b2982361cb0f63107ded3328d4a116bc93b9a6f15db12e90ae790ab363a74f01710f26cf662a18729b924c019f20"], 0x34}}, 0x0) openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0) openat$audio(0xffffffffffffff9c, &(0x7f0000000040), 0x280c40, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="07842c00004b0000000a7dd1b7f892e79f7a918e2a3c80fd7244d6e56ace95cdd382defb1972511d6ecacf311544d67b04d532a0483ebc4b3f788a4be63dde8590671d259aa9169b7c37fec3b59f8e5fc375a28114c45adfc652f0ac5912e445495708fd1a3d1eab5401a58e3333200000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c000300090000000000000008000155b2982361cb0f63107ded3328d4a116bc93b9a6f15db12e90ae790ab363a74f01710f26cf662a18729b924c019f20"], 0x34}}, 0x0) (async) openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0) (async) openat$audio(0xffffffffffffff9c, &(0x7f0000000040), 0x280c40, 0x0) (async) [ 2166.511558] nbd: couldn't find a device at index 32 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff00000000"], 0x24}}, 0x0) 20:10:03 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x400, 0x40, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}]}, 0x30}, 0x1, 0x0, 0x0, 0x1000c080}, 0x4000000) 20:10:03 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRES64=r1, @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff00000000"], 0x24}}, 0x0) [ 2166.608272] nbd: couldn't find a device at index 32 20:10:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r2, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @multicast1}}]}, 0x28}}, 0x24000090) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="000428bd7000fedbdf25050000000c00050008000000000000000c00060002000000000000001c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="88000100", @ANYRES32=r5, @ANYBLOB="0c00080005000000000000000c00080000040000000000000c000800feffffffffffffff"], 0x6c}, 0x1, 0x0, 0x0, 0x44010}, 0x4044) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xd8, r2, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x82}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}T'}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x44d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xc2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0xd8}, 0x1, 0x0, 0x0, 0x40884}, 0x4000040) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 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$nbd(&(0x7f0000000140), r0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r4, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r5, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xd8, r2, 0x400, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x82}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '}T'}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x44d}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xc2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}]}, 0xd8}, 0x1, 0x0, 0x0, 0x40884}, 0x4000040) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) 20:10:03 executing program 4: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40040}, 0x80) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="d148f7f05d0fff94805416b3a66efe260e3408b9893d1f9c0d5c36c9fe88e2cceea37c11adce09c7ba51af157edd8adcefe7990897b2a36438645e8e2b01fe08cdd03c598ea20741eb86fd42c83a0ffc5dce6758088c6c2a325f3f976c026d59b68b7245fef7be36620b947a7786ddffffffff43ba39c526710686fbfcd6857d1b4e68e1077bd7171f687e06e972c47673e22376a1ee74e83b1b9b809f9572681be9e0575e698f907d96ebd74a411b2cc9f818757184c812f2bd5747ad67b7faca49c22d215503e07084b1e274cfab53e030f1d125ca86654d6a87", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:03 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$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff00000000"], 0x24}}, 0x0) 20:10:03 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRES64=r1, @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r2, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @multicast1}}]}, 0x28}}, 0x24000090) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r2, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @multicast1}}]}, 0x28}}, 0x24000090) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:03 executing program 5: r0 = syz_init_net_socket$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) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="000428bd7000fedbdf25050000000c00050008000000000000000c00060002000000000000001c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="88000100", @ANYRES32=r5, @ANYBLOB="0c00080005000000000000000c00080000040000000000000c000800feffffffffffffff"], 0x6c}, 0x1, 0x0, 0x0, 0x44010}, 0x4044) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2166.719509] nbd: couldn't find a device at index 0 20:10:03 executing program 4: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40040}, 0x80) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="d148f7f05d0fff94805416b3a66efe260e3408b9893d1f9c0d5c36c9fe88e2cceea37c11adce09c7ba51af157edd8adcefe7990897b2a36438645e8e2b01fe08cdd03c598ea20741eb86fd42c83a0ffc5dce6758088c6c2a325f3f976c026d59b68b7245fef7be36620b947a7786ddffffffff43ba39c526710686fbfcd6857d1b4e68e1077bd7171f687e06e972c47673e22376a1ee74e83b1b9b809f9572681be9e0575e698f907d96ebd74a411b2cc9f818757184c812f2bd5747ad67b7faca49c22d215503e07084b1e274cfab53e030f1d125ca86654d6a87", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 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(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40040}, 0x80) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="d148f7f05d0fff94805416b3a66efe260e3408b9893d1f9c0d5c36c9fe88e2cceea37c11adce09c7ba51af157edd8adcefe7990897b2a36438645e8e2b01fe08cdd03c598ea20741eb86fd42c83a0ffc5dce6758088c6c2a325f3f976c026d59b68b7245fef7be36620b947a7786ddffffffff43ba39c526710686fbfcd6857d1b4e68e1077bd7171f687e06e972c47673e22376a1ee74e83b1b9b809f9572681be9e0575e698f907d96ebd74a411b2cc9f818757184c812f2bd5747ad67b7faca49c22d215503e07084b1e274cfab53e030f1d125ca86654d6a87", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) 20:10:03 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async, rerun: 32) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRES64=r1, @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (rerun: 32) [ 2166.760936] nbd: couldn't find a device at index 32 20:10:03 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff00000000"], 0x24}}, 0x0) 20:10:03 executing program 3: getresgid(&(0x7f0000000000), &(0x7f0000000040), &(0x7f0000000100)) 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x4008091}, 0x4800) 20:10:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r2, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @multicast1}}]}, 0x28}}, 0x24000090) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 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$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r2, 0x4, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @multicast1}}]}, 0x28}}, 0x24000090) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="000428bd7000fedbdf25050000000c00050008000000000000000c00060002000000000000001c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="88000100", @ANYRES32=r5, @ANYBLOB="0c00080005000000000000000c00080000040000000000000c000800feffffffffffffff"], 0x6c}, 0x1, 0x0, 0x0, 0x44010}, 0x4044) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 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(&(0x7f0000006bc0), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) pipe(&(0x7f0000000040)) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="000428bd7000fedbdf25050000000c00050008000000000000000c00060002000000000000001c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="88000100", @ANYRES32=r5, @ANYBLOB="0c00080005000000000000000c00080000040000000000000c000800feffffffffffffff"], 0x6c}, 0x1, 0x0, 0x0, 0x44010}, 0x4044) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) [ 2166.800177] nbd: couldn't find a device at index 0 20:10:03 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$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff00000000"], 0x24}}, 0x0) 20:10:03 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000000)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$NL80211_CMD_JOIN_IBSS(r0, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x30, 0x0, 0x300, 0x70bd2c, 0x25dfdbfb, {{}, {@void, @val={0xc, 0x99, {0x3, 0x56}}}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x1725}, @NL80211_ATTR_CHANNEL_WIDTH={0x8, 0x9f, 0x5}]]}, 0x30}, 0x1, 0x0, 0x0, 0x48000}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB="24caf7d209d92629f57e000000", @ANYRES16=0x0, @ANYBLOB="00022cbd7000fedbdf2505000000060003000180000005000d0000000000f901be96a5ff7032c3d9ee36a1b0cdc7b67014025d42104d22b23cedfa37604c95ce847cd81e99465d4c76a76c515301c814c9ff7fd8f9edf396431034b6b973c9a72e5a637bdce6b2ea38ed700f75cbc6ef615f9d2af6ceb79da3859026dc50cb6e13ab929c3980a6d1a94a5f91b1151aebafc0cfb1047626a4f82acd11b7a12908a6fbc6ea4a06e9d85af3f15ad3963271ebd7c072a682a0f0084c54ee"], 0x24}, 0x1, 0x0, 0x0, 0x24004000}, 0x40884) 20:10:03 executing program 4: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40040}, 0x80) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="d148f7f05d0fff94805416b3a66efe260e3408b9893d1f9c0d5c36c9fe88e2cceea37c11adce09c7ba51af157edd8adcefe7990897b2a36438645e8e2b01fe08cdd03c598ea20741eb86fd42c83a0ffc5dce6758088c6c2a325f3f976c026d59b68b7245fef7be36620b947a7786ddffffffff43ba39c526710686fbfcd6857d1b4e68e1077bd7171f687e06e972c47673e22376a1ee74e83b1b9b809f9572681be9e0575e698f907d96ebd74a411b2cc9f818757184c812f2bd5747ad67b7faca49c22d215503e07084b1e274cfab53e030f1d125ca86654d6a87", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 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(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40040}, 0x80) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="d148f7f05d0fff94805416b3a66efe260e3408b9893d1f9c0d5c36c9fe88e2cceea37c11adce09c7ba51af157edd8adcefe7990897b2a36438645e8e2b01fe08cdd03c598ea20741eb86fd42c83a0ffc5dce6758088c6c2a325f3f976c026d59b68b7245fef7be36620b947a7786ddffffffff43ba39c526710686fbfcd6857d1b4e68e1077bd7171f687e06e972c47673e22376a1ee74e83b1b9b809f9572681be9e0575e698f907d96ebd74a411b2cc9f818757184c812f2bd5747ad67b7faca49c22d215503e07084b1e274cfab53e030f1d125ca86654d6a87", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) 20:10:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$mixer(0xffffffffffffff9c, &(0x7f00000000c0), 0x10080, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000003c0)='fd\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={&(0x7f0000000380), 0xc, &(0x7f00000004c0)={&(0x7f0000000400)={0x90, 0x0, 0x0, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x429}, @NBD_ATTR_BACKEND_IDENTIFIER={0xc, 0xa, '}**\\@-\xa2*'}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x90}, 0x1, 0x0, 0x0, 0x48800}, 0x2404c844) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x30, 0x0, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x30}}, 0x4001) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) ioctl$BLKBSZSET(0xffffffffffffffff, 0x40081271, &(0x7f0000000000)=0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r6, @ANYBLOB="010000000000000060450000010001af7e3cd469fc8fb80200fa989417ec"], 0x24}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r7, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f0000000340)={0x28, 0x0, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '}**\\@-\xa2*'}]}, 0x28}, 0x1, 0x0, 0x0, 0x8040}, 0x40010) [ 2166.885739] nbd: couldn't find a device at index 0 20:10:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000100)={&(0x7f0000000000), 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x5c, 0x0, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}]}, 0x5c}, 0x1, 0x0, 0x0, 0x89805fa6ce29cf1c}, 0x20000000) socket$inet_dccp(0x2, 0x6, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x0) 20:10:03 executing program 3: getresgid(&(0x7f0000000000), &(0x7f0000000040), &(0x7f0000000100)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x4008091}, 0x4800) getresgid(&(0x7f0000000000), &(0x7f0000000040), &(0x7f0000000100)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x4008091}, 0x4800) (async) 20:10:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$mixer(0xffffffffffffff9c, &(0x7f00000000c0), 0x10080, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) (async) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000003c0)='fd\x00') (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={&(0x7f0000000380), 0xc, &(0x7f00000004c0)={&(0x7f0000000400)={0x90, 0x0, 0x0, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x429}, @NBD_ATTR_BACKEND_IDENTIFIER={0xc, 0xa, '}**\\@-\xa2*'}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x90}, 0x1, 0x0, 0x0, 0x48800}, 0x2404c844) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x30, 0x0, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x30}}, 0x4001) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) ioctl$BLKBSZSET(0xffffffffffffffff, 0x40081271, &(0x7f0000000000)=0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r6, @ANYBLOB="010000000000000060450000010001af7e3cd469fc8fb80200fa989417ec"], 0x24}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r7, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f0000000340)={0x28, 0x0, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '}**\\@-\xa2*'}]}, 0x28}, 0x1, 0x0, 0x0, 0x8040}, 0x40010) 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x0) 20:10:03 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000000)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$NL80211_CMD_JOIN_IBSS(r0, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x30, 0x0, 0x300, 0x70bd2c, 0x25dfdbfb, {{}, {@void, @val={0xc, 0x99, {0x3, 0x56}}}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x1725}, @NL80211_ATTR_CHANNEL_WIDTH={0x8, 0x9f, 0x5}]]}, 0x30}, 0x1, 0x0, 0x0, 0x48000}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB="24caf7d209d92629f57e000000", @ANYRES16=0x0, @ANYBLOB="00022cbd7000fedbdf2505000000060003000180000005000d0000000000f901be96a5ff7032c3d9ee36a1b0cdc7b67014025d42104d22b23cedfa37604c95ce847cd81e99465d4c76a76c515301c814c9ff7fd8f9edf396431034b6b973c9a72e5a637bdce6b2ea38ed700f75cbc6ef615f9d2af6ceb79da3859026dc50cb6e13ab929c3980a6d1a94a5f91b1151aebafc0cfb1047626a4f82acd11b7a12908a6fbc6ea4a06e9d85af3f15ad3963271ebd7c072a682a0f0084c54ee"], 0x24}, 0x1, 0x0, 0x0, 0x24004000}, 0x40884) 20:10:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="bd2d45ddee0c4601fc96e6f3811443264841e5a80599ff2ede67d61e4499423d57ed13426832ead766c933b5bc726a3de78625495181d508605a5d597b18c9e7f6bb184064e1cd04a054abb7fa1c4c224f742e141a8a5267e7d38d23d891bf8b4791f5e78694b7609ec94a6cea90ffccb88808", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000100)={&(0x7f0000000000), 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x5c, 0x0, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}]}, 0x5c}, 0x1, 0x0, 0x0, 0x89805fa6ce29cf1c}, 0x20000000) socket$inet_dccp(0x2, 0x6, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000100)={&(0x7f0000000000), 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x5c, 0x0, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}]}, 0x5c}, 0x1, 0x0, 0x0, 0x89805fa6ce29cf1c}, 0x20000000) (async) socket$inet_dccp(0x2, 0x6, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) [ 2166.983753] nbd: couldn't find a device at index 0 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x0) 20:10:03 executing program 3: getresgid(&(0x7f0000000000), &(0x7f0000000040), &(0x7f0000000100)) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x4008091}, 0x4800) 20:10:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$mixer(0xffffffffffffff9c, &(0x7f00000000c0), 0x10080, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000003c0)='fd\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={&(0x7f0000000380), 0xc, &(0x7f00000004c0)={&(0x7f0000000400)={0x90, 0x0, 0x0, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x429}, @NBD_ATTR_BACKEND_IDENTIFIER={0xc, 0xa, '}**\\@-\xa2*'}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x90}, 0x1, 0x0, 0x0, 0x48800}, 0x2404c844) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x30, 0x0, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x30}}, 0x4001) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) ioctl$BLKBSZSET(0xffffffffffffffff, 0x40081271, &(0x7f0000000000)=0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r6, @ANYBLOB="010000000000000060450000010001af7e3cd469fc8fb80200fa989417ec"], 0x24}}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r7, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f0000000340)={0x28, 0x0, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '}**\\@-\xa2*'}]}, 0x28}, 0x1, 0x0, 0x0, 0x8040}, 0x40010) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) openat$mixer(0xffffffffffffff9c, &(0x7f00000000c0), 0x10080, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) syz_open_procfs(0xffffffffffffffff, &(0x7f00000003c0)='fd\x00') (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000500)={&(0x7f0000000380), 0xc, &(0x7f00000004c0)={&(0x7f0000000400)={0x90, 0x0, 0x0, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x429}, @NBD_ATTR_BACKEND_IDENTIFIER={0xc, 0xa, '}**\\@-\xa2*'}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x90}, 0x1, 0x0, 0x0, 0x48800}, 0x2404c844) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x30, 0x0, 0x100, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x30}}, 0x4001) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) ioctl$BLKBSZSET(0xffffffffffffffff, 0x40081271, &(0x7f0000000000)=0xffffffffffffffff) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r6, @ANYBLOB="010000000000000060450000010001af7e3cd469fc8fb80200fa989417ec"], 0x24}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r7, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f0000000340)={0x28, 0x0, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}, @NLBL_MGMT_A_DOMAIN={0xc, 0x1, '}**\\@-\xa2*'}]}, 0x28}, 0x1, 0x0, 0x0, 0x8040}, 0x40010) (async) 20:10:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="bd2d45ddee0c4601fc96e6f3811443264841e5a80599ff2ede67d61e4499423d57ed13426832ead766c933b5bc726a3de78625495181d508605a5d597b18c9e7f6bb184064e1cd04a054abb7fa1c4c224f742e141a8a5267e7d38d23d891bf8b4791f5e78694b7609ec94a6cea90ffccb88808", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="bd2d45ddee0c4601fc96e6f3811443264841e5a80599ff2ede67d61e4499423d57ed13426832ead766c933b5bc726a3de78625495181d508605a5d597b18c9e7f6bb184064e1cd04a054abb7fa1c4c224f742e141a8a5267e7d38d23d891bf8b4791f5e78694b7609ec94a6cea90ffccb88808", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) 20:10:03 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000000)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$NL80211_CMD_JOIN_IBSS(r0, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x30, 0x0, 0x300, 0x70bd2c, 0x25dfdbfb, {{}, {@void, @val={0xc, 0x99, {0x3, 0x56}}}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x1725}, @NL80211_ATTR_CHANNEL_WIDTH={0x8, 0x9f, 0x5}]]}, 0x30}, 0x1, 0x0, 0x0, 0x48000}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB="24caf7d209d92629f57e000000", @ANYRES16=0x0, @ANYBLOB="00022cbd7000fedbdf2505000000060003000180000005000d0000000000f901be96a5ff7032c3d9ee36a1b0cdc7b67014025d42104d22b23cedfa37604c95ce847cd81e99465d4c76a76c515301c814c9ff7fd8f9edf396431034b6b973c9a72e5a637bdce6b2ea38ed700f75cbc6ef615f9d2af6ceb79da3859026dc50cb6e13ab929c3980a6d1a94a5f91b1151aebafc0cfb1047626a4f82acd11b7a12908a6fbc6ea4a06e9d85af3f15ad3963271ebd7c072a682a0f0084c54ee"], 0x24}, 0x1, 0x0, 0x0, 0x24004000}, 0x40884) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000000)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) sendmsg$NL80211_CMD_JOIN_IBSS(r0, &(0x7f0000000280)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x30, 0x0, 0x300, 0x70bd2c, 0x25dfdbfb, {{}, {@void, @val={0xc, 0x99, {0x3, 0x56}}}}, [@chandef_params=[@NL80211_ATTR_WIPHY_FREQ={0x8, 0x26, @random=0x1725}, @NL80211_ATTR_CHANNEL_WIDTH={0x8, 0x9f, 0x5}]]}, 0x30}, 0x1, 0x0, 0x0, 0x48000}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB="24caf7d209d92629f57e000000", @ANYRES16=0x0, @ANYBLOB="00022cbd7000fedbdf2505000000060003000180000005000d0000000000f901be96a5ff7032c3d9ee36a1b0cdc7b67014025d42104d22b23cedfa37604c95ce847cd81e99465d4c76a76c515301c814c9ff7fd8f9edf396431034b6b973c9a72e5a637bdce6b2ea38ed700f75cbc6ef615f9d2af6ceb79da3859026dc50cb6e13ab929c3980a6d1a94a5f91b1151aebafc0cfb1047626a4f82acd11b7a12908a6fbc6ea4a06e9d85af3f15ad3963271ebd7c072a682a0f0084c54ee"], 0x24}, 0x1, 0x0, 0x0, 0x24004000}, 0x40884) (async) 20:10:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000100)={&(0x7f0000000000), 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x5c, 0x0, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}]}, 0x5c}, 0x1, 0x0, 0x0, 0x89805fa6ce29cf1c}, 0x20000000) (async) socket$inet_dccp(0x2, 0x6, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2167.050548] nbd: couldn't find a device at index 0 [ 2167.067646] nbd: couldn't find a device at index 0 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) 20:10:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) ioctl$BLKZEROOUT(0xffffffffffffffff, 0x127f, &(0x7f0000000000)={0x6363, 0x5}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) ioctl$BLKIOMIN(r2, 0x1278, &(0x7f0000000040)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYRESDEC=r3, @ANYRES16=r1, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:03 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="7efdffff", @ANYRES16=r1, @ANYBLOB="0100000000083df93494bdbd2c51"], 0x24}, 0x1, 0x0, 0x0, 0x4008041}, 0x0) 20:10:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="bd2d45ddee0c4601fc96e6f3811443264841e5a80599ff2ede67d61e4499423d57ed13426832ead766c933b5bc726a3de78625495181d508605a5d597b18c9e7f6bb184064e1cd04a054abb7fa1c4c224f742e141a8a5267e7d38d23d891bf8b4791f5e78694b7609ec94a6cea90ffccb88808", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) ioctl$BLKZEROOUT(0xffffffffffffffff, 0x127f, &(0x7f0000000000)={0x6363, 0x5}) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) ioctl$BLKIOMIN(r2, 0x1278, &(0x7f0000000040)) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYRESDEC=r3, @ANYRES16=r1, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) 20:10:03 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809ee6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000100)) sendmsg$L2TP_CMD_TUNNEL_GET(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DEBUG={0x8}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @rand_addr=0x64010101}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x38}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40}, 0x41) r1 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r1, 0xfffffffffffffffc) r2 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r2, 0xfffffffffffffffc) r3 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r3, 0xfffffffffffffffc) keyctl$unlink(0x9, r2, r3) r4 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r4, 0xfffffffffffffffc) keyctl$clear(0x7, r4) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x30, 0x0, 0x69246c975f8e4064, 0x70bd27, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e24}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x5}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @loopback}]}, 0x30}, 0x1, 0x0, 0x0, 0x801}, 0x20004000) keyctl$negate(0xd, r1, 0x10001, 0xfffffffffffffffd) 20:10:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x44, r4, 0x20, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x33a9a4599e56889e}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000040}, 0xc014) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:03 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="7efdffff", @ANYRES16=r1, @ANYBLOB="0100000000083df93494bdbd2c51"], 0x24}, 0x1, 0x0, 0x0, 0x4008041}, 0x0) [ 2167.198875] nbd: couldn't find a device at index 0 20:10:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="0108000000000000f8b0c1ab1047a6f78d000003000000040007800c001c000000000000000000"], 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x90, r2, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1000000000000000}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x90}, 0x1, 0x0, 0x0, 0x40001}, 0x40040) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) 20:10:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) ioctl$BLKZEROOUT(0xffffffffffffffff, 0x127f, &(0x7f0000000000)={0x6363, 0x5}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) ioctl$BLKIOMIN(r2, 0x1278, &(0x7f0000000040)) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYRESDEC=r3, @ANYRES16=r1, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) (async) ioctl$BLKZEROOUT(0xffffffffffffffff, 0x127f, &(0x7f0000000000)={0x6363, 0x5}) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r2, 0x0, 0x0) (async) ioctl$BLKIOMIN(r2, 0x1278, &(0x7f0000000040)) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYRESDEC=r3, @ANYRES16=r1, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) 20:10:04 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809ee6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000100)) sendmsg$L2TP_CMD_TUNNEL_GET(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DEBUG={0x8}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @rand_addr=0x64010101}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x38}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40}, 0x41) (async) r1 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r1, 0xfffffffffffffffc) r2 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r2, 0xfffffffffffffffc) (async, rerun: 32) r3 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) (rerun: 32) keyctl$unlink(0x9, r3, 0xfffffffffffffffc) keyctl$unlink(0x9, r2, r3) r4 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r4, 0xfffffffffffffffc) (async, rerun: 32) keyctl$clear(0x7, r4) (rerun: 32) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x30, 0x0, 0x69246c975f8e4064, 0x70bd27, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e24}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x5}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @loopback}]}, 0x30}, 0x1, 0x0, 0x0, 0x801}, 0x20004000) (async) keyctl$negate(0xd, r1, 0x10001, 0xfffffffffffffffd) 20:10:04 executing program 5: 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$nbd(&(0x7f0000000140), r0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x44, r4, 0x20, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x33a9a4599e56889e}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000040}, 0xc014) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2167.288166] nbd: couldn't find a device at index 0 20:10:04 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="7efdffff", @ANYRES16=r1, @ANYBLOB="0100000000083df93494bdbd2c51"], 0x24}, 0x1, 0x0, 0x0, 0x4008041}, 0x0) 20:10:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r1) (async, rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) (rerun: 64) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="0108000000000000f8b0c1ab1047a6f78d000003000000040007800c001c000000000000000000"], 0x24}}, 0x0) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x90, r2, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1000000000000000}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x90}, 0x1, 0x0, 0x0, 0x40001}, 0x40040) (rerun: 32) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x24}}, 0x0) 20:10:04 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809ee6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000100)) sendmsg$L2TP_CMD_TUNNEL_GET(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DEBUG={0x8}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @rand_addr=0x64010101}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x38}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40}, 0x41) r1 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r1, 0xfffffffffffffffc) r2 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r2, 0xfffffffffffffffc) r3 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r3, 0xfffffffffffffffc) keyctl$unlink(0x9, r2, r3) r4 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r4, 0xfffffffffffffffc) keyctl$clear(0x7, r4) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x30, 0x0, 0x69246c975f8e4064, 0x70bd27, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e24}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x5}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @loopback}]}, 0x30}, 0x1, 0x0, 0x0, 0x801}, 0x20004000) keyctl$negate(0xd, r1, 0x10001, 0xfffffffffffffffd) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809ee6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000100)) (async) sendmsg$L2TP_CMD_TUNNEL_GET(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x3c, 0x0, 0x100, 0x70bd2a, 0x25dfdbff, {}, [@L2TP_ATTR_FD={0x8, 0x17, @l2tp6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DEBUG={0x8}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @rand_addr=0x64010101}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x38}}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40}, 0x41) (async) add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) (async) keyctl$unlink(0x9, r1, 0xfffffffffffffffc) (async) add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) (async) keyctl$unlink(0x9, r2, 0xfffffffffffffffc) (async) add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) (async) keyctl$unlink(0x9, r3, 0xfffffffffffffffc) (async) keyctl$unlink(0x9, r2, r3) (async) add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) (async) keyctl$unlink(0x9, r4, 0xfffffffffffffffc) (async) keyctl$clear(0x7, r4) (async) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000200)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x30, 0x0, 0x69246c975f8e4064, 0x70bd27, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e24}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x5}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @loopback}]}, 0x30}, 0x1, 0x0, 0x0, 0x801}, 0x20004000) (async) keyctl$negate(0xd, r1, 0x10001, 0xfffffffffffffffd) (async) 20:10:04 executing program 5: r0 = syz_init_net_socket$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) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x44, r4, 0x20, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x33a9a4599e56889e}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000040}, 0xc014) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:04 executing program 3: inotify_init1(0x80000) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) ioctl$BLKDISCARD(r0, 0x1277, &(0x7f0000000200)=0xfffffffffffff838) setsockopt$inet_dccp_int(r0, 0x21, 0xb, &(0x7f00000005c0), 0x4) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) setsockopt$bt_hci_HCI_DATA_DIR(r0, 0x0, 0x1, &(0x7f0000000640)=0xffc00, 0x4) r3 = add_key(&(0x7f0000000100)='encrypted\x00', &(0x7f0000000240)={'syz', 0x2}, &(0x7f0000000280)="4bc6fb75a84afb3e2b7fe7fb5a9435e016c32a1fee0f7e37159877da8f98570ca3eedd126168c3bcc3ddbb5a8ba256dee81993caaeb50de84d5ea53e93f7f3e9a9ea3e7fdf824ba56a9ec6f05f81bf4367ef690b33a0347f5f08694e2be92fe6f89e3938655eb45a00af355b2b73b1f927b8b68bccb55890c1e36c65aad5ad5bf846316bf68ad1aa88d0b1446a16c498cfcb0ea983fb35818119d703d111fe528f7c29cf23b69be9829a178f2427ed23d3061d82c643cc229b09d0a59484258b7036a39b7b5609c3dacb439a43b321c90bdcc844b5", 0xd5, 0xfffffffffffffffa) r4 = add_key$keyring(&(0x7f0000000540), &(0x7f0000000040)={'syz', 0x1}, 0x0, 0x0, r3) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) keyctl$search(0xa, r3, &(0x7f0000000000)='blacklist\x00', &(0x7f0000000580)={'syz', 0x3}, r4) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000680)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="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"], 0x34}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000600)='statm\x00') sendmsg$NLBL_MGMT_C_ADD(r6, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000004c0)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x28, r7, 0x0, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x4811}, 0x40000) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000500), r8) 20:10:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x430000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x34, r2, 0x2, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ')'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x16}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000000}, 0x80) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x24}}, 0x0) 20:10:04 executing program 3: inotify_init1(0x80000) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) ioctl$BLKDISCARD(r0, 0x1277, &(0x7f0000000200)=0xfffffffffffff838) (async, rerun: 32) setsockopt$inet_dccp_int(r0, 0x21, 0xb, &(0x7f00000005c0), 0x4) (rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) setsockopt$bt_hci_HCI_DATA_DIR(r0, 0x0, 0x1, &(0x7f0000000640)=0xffc00, 0x4) r3 = add_key(&(0x7f0000000100)='encrypted\x00', &(0x7f0000000240)={'syz', 0x2}, &(0x7f0000000280)="4bc6fb75a84afb3e2b7fe7fb5a9435e016c32a1fee0f7e37159877da8f98570ca3eedd126168c3bcc3ddbb5a8ba256dee81993caaeb50de84d5ea53e93f7f3e9a9ea3e7fdf824ba56a9ec6f05f81bf4367ef690b33a0347f5f08694e2be92fe6f89e3938655eb45a00af355b2b73b1f927b8b68bccb55890c1e36c65aad5ad5bf846316bf68ad1aa88d0b1446a16c498cfcb0ea983fb35818119d703d111fe528f7c29cf23b69be9829a178f2427ed23d3061d82c643cc229b09d0a59484258b7036a39b7b5609c3dacb439a43b321c90bdcc844b5", 0xd5, 0xfffffffffffffffa) r4 = add_key$keyring(&(0x7f0000000540), &(0x7f0000000040)={'syz', 0x1}, 0x0, 0x0, r3) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) (async) keyctl$search(0xa, r3, &(0x7f0000000000)='blacklist\x00', &(0x7f0000000580)={'syz', 0x3}, r4) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000680)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="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"], 0x34}}, 0x0) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) (async) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000600)='statm\x00') sendmsg$NLBL_MGMT_C_ADD(r6, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000004c0)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x28, r7, 0x0, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x4811}, 0x40000) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000500), r8) 20:10:04 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$nbd(&(0x7f0000000100), r1) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) (async, rerun: 32) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) (rerun: 32) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) (async, rerun: 32) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) (rerun: 32) write$FUSE_ATTR(r7, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x430000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x34, r2, 0x2, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ')'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x16}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000000}, 0x80) 20:10:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x40, r1, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '@%'}]}, 0x40}, 0x1, 0x0, 0x0, 0x6811}, 0x20000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x24}}, 0x0) [ 2167.474500] nbd: couldn't find a device at index 0 20:10:04 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$media(&(0x7f0000000000), 0x5e0000, 0x200000) ioctl$MEDIA_IOC_ENUM_LINKS(r1, 0xc0287c02, &(0x7f0000000100)={0x80000000, &(0x7f0000000040), &(0x7f0000000080)}) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) [ 2167.539035] nbd: couldn't find a device at index 0 20:10:04 executing program 4: r0 = syz_init_net_socket$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(&(0x7f0000000080), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="0108000000000000f8b0c1ab1047a6f78d000003000000040007800c001c000000000000000000"], 0x24}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x90, r2, 0x400, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7fffffffffffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1000000000000000}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x90}, 0x1, 0x0, 0x0, 0x40001}, 0x40040) 20:10:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x40, r1, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '@%'}]}, 0x40}, 0x1, 0x0, 0x0, 0x6811}, 0x20000000) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2], 0x24}}, 0x0) 20:10:04 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$media(&(0x7f0000000000), 0x5e0000, 0x200000) ioctl$MEDIA_IOC_ENUM_LINKS(r1, 0xc0287c02, &(0x7f0000000100)={0x80000000, &(0x7f0000000040), &(0x7f0000000080)}) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$media(&(0x7f0000000000), 0x5e0000, 0x200000) (async) ioctl$MEDIA_IOC_ENUM_LINKS(r1, 0xc0287c02, &(0x7f0000000100)={0x80000000, &(0x7f0000000040), &(0x7f0000000080)}) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:04 executing program 3: inotify_init1(0x80000) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) ioctl$BLKDISCARD(r0, 0x1277, &(0x7f0000000200)=0xfffffffffffff838) (async) setsockopt$inet_dccp_int(r0, 0x21, 0xb, &(0x7f00000005c0), 0x4) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) setsockopt$bt_hci_HCI_DATA_DIR(r0, 0x0, 0x1, &(0x7f0000000640)=0xffc00, 0x4) (async, rerun: 32) r3 = add_key(&(0x7f0000000100)='encrypted\x00', &(0x7f0000000240)={'syz', 0x2}, &(0x7f0000000280)="4bc6fb75a84afb3e2b7fe7fb5a9435e016c32a1fee0f7e37159877da8f98570ca3eedd126168c3bcc3ddbb5a8ba256dee81993caaeb50de84d5ea53e93f7f3e9a9ea3e7fdf824ba56a9ec6f05f81bf4367ef690b33a0347f5f08694e2be92fe6f89e3938655eb45a00af355b2b73b1f927b8b68bccb55890c1e36c65aad5ad5bf846316bf68ad1aa88d0b1446a16c498cfcb0ea983fb35818119d703d111fe528f7c29cf23b69be9829a178f2427ed23d3061d82c643cc229b09d0a59484258b7036a39b7b5609c3dacb439a43b321c90bdcc844b5", 0xd5, 0xfffffffffffffffa) r4 = add_key$keyring(&(0x7f0000000540), &(0x7f0000000040)={'syz', 0x1}, 0x0, 0x0, r3) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) keyctl$search(0xa, r3, &(0x7f0000000000)='blacklist\x00', &(0x7f0000000580)={'syz', 0x3}, r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000680)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="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"], 0x34}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000600)='statm\x00') (async) sendmsg$NLBL_MGMT_C_ADD(r6, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r7, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000004c0)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000480)={&(0x7f0000000440)={0x28, r7, 0x0, 0x70bd2d, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x4811}, 0x40000) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000500), r8) 20:10:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x430000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x34, r2, 0x2, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ')'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x16}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000000}, 0x80) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2], 0x24}}, 0x0) 20:10:04 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$media(&(0x7f0000000000), 0x5e0000, 0x200000) ioctl$MEDIA_IOC_ENUM_LINKS(r1, 0xc0287c02, &(0x7f0000000100)={0x80000000, &(0x7f0000000040), &(0x7f0000000080)}) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000280)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694cfe0000000c0005070001c6befb9d68baf47901000009000000000000000400000020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f0000000040)={0xffffffffffffffff}) r5 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000100)='attr/exec\x00') sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200140}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r2, 0x20, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x59db}]}, 0x60}, 0x1, 0x0, 0x0, 0x1}, 0x880) 20:10:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x40, r1, 0x200, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '@%'}]}, 0x40}, 0x1, 0x0, 0x0, 0x6811}, 0x20000000) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[], 0x24}}, 0x4000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r2) syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2], 0x24}}, 0x0) 20:10:04 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$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f00000003c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x58, r6, 0x20, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}, 0x1, 0x0, 0x0, 0x20004808}, 0x1) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x44, r4, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x28}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x44}, 0x1, 0x0, 0x0, 0x4001}, 0x8810) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0xfffffffffffffc84}}, 0x0) 20:10:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000280)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694cfe0000000c0005070001c6befb9d68baf47901000009000000000000000400000020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f0000000040)={0xffffffffffffffff}) r5 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000100)='attr/exec\x00') sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200140}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r2, 0x20, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x59db}]}, 0x60}, 0x1, 0x0, 0x0, 0x1}, 0x880) 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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000280)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694cfe0000000c0005070001c6befb9d68baf47901000009000000000000000400000020"], 0x34}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f0000000040)) (async) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000100)='attr/exec\x00') (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200140}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r2, 0x20, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x59db}]}, 0x60}, 0x1, 0x0, 0x0, 0x1}, 0x880) (async) 20:10:04 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$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[], 0x24}}, 0x4000) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r2) (async) syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) 20:10:04 executing program 1: sendmsg$802154_raw(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000), 0x14, &(0x7f0000000100)={&(0x7f0000000040)="557a257a34dcab680844f7331bc21a6bba30e2032204f043e7b3764f45ca8ef129ba52931aa8dba8e35d478fd7d7bc782110e6c3906847f51bad72557076327934c0fc7e96b28f29b05bdbd9e319333672a266d51a94c96e5b79443183e8b4773bed8b948349a26e77c881e63529ccb109e0bac971c0df3dbc46020accbc2dca8d69c8cc3f43a8a89e79a8889936", 0x8e}, 0x1, 0x0, 0x0, 0x40800}, 0x8000) r0 = socket$nl_generic(0x10, 0x3, 0x10) socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) [ 2167.798435] nbd: couldn't find a device at index 0 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB], 0x24}}, 0x0) 20:10:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x88, r4, 0x100, 0x70bd2c, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x88}, 0x1, 0x0, 0x0, 0x40000}, 0x2004804) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}, 0x1, 0x0, 0x0, 0x40000}, 0x0) 20:10:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[], 0x24}}, 0x4000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r2) (async) syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) 20:10:04 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000280)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694cfe0000000c0005070001c6befb9d68baf47901000009000000000000000400000020"], 0x34}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f0000000040)={0xffffffffffffffff}) (async, rerun: 32) r5 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000100)='attr/exec\x00') (rerun: 32) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200140}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r2, 0x20, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x59db}]}, 0x60}, 0x1, 0x0, 0x0, 0x1}, 0x880) 20:10:04 executing program 5: r0 = syz_init_net_socket$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) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x88, r4, 0x100, 0x70bd2c, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x88}, 0x1, 0x0, 0x0, 0x40000}, 0x2004804) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}, 0x1, 0x0, 0x0, 0x40000}, 0x0) 20:10:04 executing program 1: sendmsg$802154_raw(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000), 0x14, &(0x7f0000000100)={&(0x7f0000000040)="557a257a34dcab680844f7331bc21a6bba30e2032204f043e7b3764f45ca8ef129ba52931aa8dba8e35d478fd7d7bc782110e6c3906847f51bad72557076327934c0fc7e96b28f29b05bdbd9e319333672a266d51a94c96e5b79443183e8b4773bed8b948349a26e77c881e63529ccb109e0bac971c0df3dbc46020accbc2dca8d69c8cc3f43a8a89e79a8889936", 0x8e}, 0x1, 0x0, 0x0, 0x40800}, 0x8000) (async, rerun: 32) r0 = socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) [ 2167.910717] nbd: couldn't find a device at index 0 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB], 0x24}}, 0x0) 20:10:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async, rerun: 32) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f00000003c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x58, r6, 0x20, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}, 0x1, 0x0, 0x0, 0x20004808}, 0x1) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x44, r4, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x28}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x44}, 0x1, 0x0, 0x0, 0x4001}, 0x8810) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0xfffffffffffffc84}}, 0x0) 20:10:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000440)={&(0x7f0000000480)={0x58, r2, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x53f}, @NBD_ATTR_BACKEND_IDENTIFIER={0x11, 0xa, 'N\xddl\xc5sCG\xbe\xf3\xe7\x16T\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffd}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x4008000}, 0x40) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r3) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20020}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0x94, r5, 0xc09, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @loopback}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010101}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}]}, 0x94}, 0x1, 0x0, 0x0, 0x40080}, 0x8001) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r7, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:04 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000ba79b0ea6dacb38ea800", @ANYRES16, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:04 executing program 1: sendmsg$802154_raw(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000), 0x14, &(0x7f0000000100)={&(0x7f0000000040)="557a257a34dcab680844f7331bc21a6bba30e2032204f043e7b3764f45ca8ef129ba52931aa8dba8e35d478fd7d7bc782110e6c3906847f51bad72557076327934c0fc7e96b28f29b05bdbd9e319333672a266d51a94c96e5b79443183e8b4773bed8b948349a26e77c881e63529ccb109e0bac971c0df3dbc46020accbc2dca8d69c8cc3f43a8a89e79a8889936", 0x8e}, 0x1, 0x0, 0x0, 0x40800}, 0x8000) (async) r0 = socket$nl_generic(0x10, 0x3, 0x10) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB], 0x24}}, 0x0) 20:10:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x88, r4, 0x100, 0x70bd2c, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x28}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x88}, 0x1, 0x0, 0x0, 0x40000}, 0x2004804) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}, 0x1, 0x0, 0x0, 0x40000}, 0x0) [ 2168.007462] nbd: couldn't find a device at index 0 20:10:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000440)={&(0x7f0000000480)={0x58, r2, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x53f}, @NBD_ATTR_BACKEND_IDENTIFIER={0x11, 0xa, 'N\xddl\xc5sCG\xbe\xf3\xe7\x16T\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffd}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x4008000}, 0x40) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r3) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20020}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0x94, r5, 0xc09, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @loopback}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010101}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}]}, 0x94}, 0x1, 0x0, 0x0, 0x40080}, 0x8001) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r7, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:04 executing program 1: r0 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000380), 0x2, 0x0) write$FUSE_INIT(r0, &(0x7f00000003c0)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8, 0x0, 0x8, 0x7, 0x2, 0x8439}}, 0x50) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x2, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x0) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000580)) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f00000005c0)=ANY=[@ANYBLOB="2100000104000000000000b84d4441a5cd255c4ed10b7961ad9c10710344bc394dc95d17128d946ef121f7c5bb055613138350fd36fb4e551a21f1ddae7d0bf76d119f994dbd9477b4eb3f28849e", @ANYRES16=0x0, @ANYBLOB="00022dbd7000ffdbdf2504000000060003000300000006000e00020000000500220000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x40840}, 0x4000) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000040)=ANY=[@ANYRES32=r4, @ANYRES16, @ANYRESOCT=r4], 0x1c}, 0x1, 0x0, 0x0, 0x20048014}, 0x18) r6 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r6, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_DEL_TX_TS(r7, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r8, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) sendmsg$NL80211_CMD_DEL_TX_TS(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x2021801}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x54, r8, 0x800, 0x70bd2c, 0x25dfdbff, {{}, {@void, @val={0xc, 0x99, {0x0, 0x6e}}}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xa}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x9}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x4}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xf}, @NL80211_ATTR_TSID={0x5}]}, 0x54}, 0x1, 0x0, 0x0, 0x44}, 0x20000004) 20:10:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f00000003c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000380)={&(0x7f0000000300)={0x58, r6, 0x20, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x58}, 0x1, 0x0, 0x0, 0x20004808}, 0x1) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x44, r4, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x28}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x44}, 0x1, 0x0, 0x0, 0x4001}, 0x8810) (rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0xfffffffffffffc84}}, 0x0) 20:10:04 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000ba79b0ea6dacb38ea800", @ANYRES16, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000ba79b0ea6dacb38ea800", @ANYRES16, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) 20:10:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000008000000000100000004"], 0x24}}, 0x0) 20:10:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESOCT=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}, 0x1, 0x0, 0x0, 0x40890}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r0) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000280)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r3, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x5}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x68}}, 0x4000) [ 2168.120834] nbd: couldn't find a device at index 0 20:10:04 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$nbd(&(0x7f0000000100), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000440)={&(0x7f0000000480)={0x58, r2, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x53f}, @NBD_ATTR_BACKEND_IDENTIFIER={0x11, 0xa, 'N\xddl\xc5sCG\xbe\xf3\xe7\x16T\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffd}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x4008000}, 0x40) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r3) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20020}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0x94, r5, 0xc09, 0x70bd28, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010100}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @loopback}}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010101}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}]}, 0x94}, 0x1, 0x0, 0x0, 0x40080}, 0x8001) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r7, 0x1, 0xfffffffd, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:04 executing program 1: r0 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000380), 0x2, 0x0) write$FUSE_INIT(r0, &(0x7f00000003c0)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8, 0x0, 0x8, 0x7, 0x2, 0x8439}}, 0x50) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x2, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x0) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000580)) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f00000005c0)=ANY=[@ANYBLOB="2100000104000000000000b84d4441a5cd255c4ed10b7961ad9c10710344bc394dc95d17128d946ef121f7c5bb055613138350fd36fb4e551a21f1ddae7d0bf76d119f994dbd9477b4eb3f28849e", @ANYRES16=0x0, @ANYBLOB="00022dbd7000ffdbdf2504000000060003000300000006000e00020000000500220000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x40840}, 0x4000) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000040)=ANY=[@ANYRES32=r4, @ANYRES16, @ANYRESOCT=r4], 0x1c}, 0x1, 0x0, 0x0, 0x20048014}, 0x18) r6 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r6, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_DEL_TX_TS(r7, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r8, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) sendmsg$NL80211_CMD_DEL_TX_TS(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x2021801}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x54, r8, 0x800, 0x70bd2c, 0x25dfdbff, {{}, {@void, @val={0xc, 0x99, {0x0, 0x6e}}}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xa}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x9}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x4}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xf}, @NL80211_ATTR_TSID={0x5}]}, 0x54}, 0x1, 0x0, 0x0, 0x44}, 0x20000004) openat$cuse(0xffffffffffffff9c, &(0x7f0000000380), 0x2, 0x0) (async) write$FUSE_INIT(r0, &(0x7f00000003c0)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8, 0x0, 0x8, 0x7, 0x2, 0x8439}}, 0x50) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x2, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x0) (async) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000580)) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f00000005c0)=ANY=[@ANYBLOB="2100000104000000000000b84d4441a5cd255c4ed10b7961ad9c10710344bc394dc95d17128d946ef121f7c5bb055613138350fd36fb4e551a21f1ddae7d0bf76d119f994dbd9477b4eb3f28849e", @ANYRES16=0x0, @ANYBLOB="00022dbd7000ffdbdf2504000000060003000300000006000e00020000000500220000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x40840}, 0x4000) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000040)=ANY=[@ANYRES32=r4, @ANYRES16, @ANYRESOCT=r4], 0x1c}, 0x1, 0x0, 0x0, 0x20048014}, 0x18) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r6, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) (async) sendmsg$NL80211_CMD_DEL_TX_TS(r7, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r8, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) (async) sendmsg$NL80211_CMD_DEL_TX_TS(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x2021801}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x54, r8, 0x800, 0x70bd2c, 0x25dfdbff, {{}, {@void, @val={0xc, 0x99, {0x0, 0x6e}}}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xa}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x9}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x4}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xf}, @NL80211_ATTR_TSID={0x5}]}, 0x54}, 0x1, 0x0, 0x0, 0x44}, 0x20000004) (async) 20:10:04 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000ba79b0ea6dacb38ea800", @ANYRES16, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESOCT=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}, 0x1, 0x0, 0x0, 0x40890}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r0) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000280)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r3, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x5}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x68}}, 0x4000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESOCT=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}, 0x1, 0x0, 0x0, 0x40890}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r0) (async) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000280)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r3, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x5}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x68}}, 0x4000) (async) 20:10:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x40, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffff0001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffe0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x40}, 0x1, 0x0, 0x0, 0x5044}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x64, r3, 0x2, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '/++'}]}, 0x64}, 0x1, 0x0, 0x0, 0x4000040}, 0x8000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000040)={&(0x7f0000000200)={0x68, r3, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000012}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x24}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, r1, 0x1, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0xc011) [ 2168.201618] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2168.225780] nbd: must specify at least one socket 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000008000000000100000004"], 0x24}}, 0x0) 20:10:05 executing program 1: r0 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000380), 0x2, 0x0) write$FUSE_INIT(r0, &(0x7f00000003c0)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8, 0x0, 0x8, 0x7, 0x2, 0x8439}}, 0x50) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x2, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x0) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000580)) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f00000005c0)=ANY=[@ANYBLOB="2100000104000000000000b84d4441a5cd255c4ed10b7961ad9c10710344bc394dc95d17128d946ef121f7c5bb055613138350fd36fb4e551a21f1ddae7d0bf76d119f994dbd9477b4eb3f28849e", @ANYRES16=0x0, @ANYBLOB="00022dbd7000ffdbdf2504000000060003000300000006000e00020000000500220000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x40840}, 0x4000) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000040)=ANY=[@ANYRES32=r4, @ANYRES16, @ANYRESOCT=r4], 0x1c}, 0x1, 0x0, 0x0, 0x20048014}, 0x18) r6 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r6, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_DEL_TX_TS(r7, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r8, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) sendmsg$NL80211_CMD_DEL_TX_TS(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x2021801}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x54, r8, 0x800, 0x70bd2c, 0x25dfdbff, {{}, {@void, @val={0xc, 0x99, {0x0, 0x6e}}}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xa}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x9}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x4}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xf}, @NL80211_ATTR_TSID={0x5}]}, 0x54}, 0x1, 0x0, 0x0, 0x44}, 0x20000004) openat$cuse(0xffffffffffffff9c, &(0x7f0000000380), 0x2, 0x0) (async) write$FUSE_INIT(r0, &(0x7f00000003c0)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8, 0x0, 0x8, 0x7, 0x2, 0x8439}}, 0x50) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x2, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x0) (async) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000580)) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f00000005c0)=ANY=[@ANYBLOB="2100000104000000000000b84d4441a5cd255c4ed10b7961ad9c10710344bc394dc95d17128d946ef121f7c5bb055613138350fd36fb4e551a21f1ddae7d0bf76d119f994dbd9477b4eb3f28849e", @ANYRES16=0x0, @ANYBLOB="00022dbd7000ffdbdf2504000000060003000300000006000e00020000000500220000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x40840}, 0x4000) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000040)=ANY=[@ANYRES32=r4, @ANYRES16, @ANYRESOCT=r4], 0x1c}, 0x1, 0x0, 0x0, 0x20048014}, 0x18) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r6, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) (async) sendmsg$NL80211_CMD_DEL_TX_TS(r7, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r8, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) (async) sendmsg$NL80211_CMD_DEL_TX_TS(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x2021801}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x54, r8, 0x800, 0x70bd2c, 0x25dfdbff, {{}, {@void, @val={0xc, 0x99, {0x0, 0x6e}}}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xa}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x9}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x4}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xf}, @NL80211_ATTR_TSID={0x5}]}, 0x54}, 0x1, 0x0, 0x0, 0x44}, 0x20000004) (async) 20:10:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x24}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, r1, 0x1, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0xc011) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x24}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, r1, 0x1, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0xc011) (async) 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000008000000000100000004"], 0x24}}, 0x0) 20:10:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x40, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffff0001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffe0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x40}, 0x1, 0x0, 0x0, 0x5044}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x64, r3, 0x2, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '/++'}]}, 0x64}, 0x1, 0x0, 0x0, 0x4000040}, 0x8000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 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(&(0x7f0000006bc0), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x40, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffff0001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffe0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x40}, 0x1, 0x0, 0x0, 0x5044}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x64, r3, 0x2, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '/++'}]}, 0x64}, 0x1, 0x0, 0x0, 0x4000040}, 0x8000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000040)={&(0x7f0000000200)={0x68, r3, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000012}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:05 executing program 5: 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESOCT=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}, 0x1, 0x0, 0x0, 0x40890}, 0x0) (async, rerun: 32) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r0) (rerun: 32) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000280)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r3, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x5}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @empty}}]}, 0x68}}, 0x4000) [ 2168.341458] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2168.351089] nbd: must specify at least one socket [ 2168.362215] nbd: couldn't find a device at index 32 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB='\a\x00\x00\x00', @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x24}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, r1, 0x1, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0xc011) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x24}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x4c, r1, 0x1, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x4c}, 0x1, 0x0, 0x0, 0x10}, 0xc011) (async) 20:10:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x40, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffff0001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffe0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x40}, 0x1, 0x0, 0x0, 0x5044}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x64, r3, 0x2, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '/++'}]}, 0x64}, 0x1, 0x0, 0x0, 0x4000040}, 0x8000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x40, r3, 0x1, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffff0001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffe0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x40}, 0x1, 0x0, 0x0, 0x5044}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000300)={&(0x7f0000000200)={0x64, r3, 0x2, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '/++'}]}, 0x64}, 0x1, 0x0, 0x0, 0x4000040}, 0x8000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB='\a\x00\x00\x00', @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:05 executing program 5: sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, &(0x7f00000028c0)={0x0, 0x0, 0x0}, 0x0) r0 = socket(0x2, 0x3, 0x2) ioctl$sock_inet6_udp_SIOCINQ(r0, 0x541b, &(0x7f0000000000)) 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$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYRESDEC=0x0, @ANYRES8=r2, @ANYBLOB="3ffd9c46766ef6899652b7e2f6dc45afa0ab3998f2e8db744245babeacb5ae9998d0d2845d4ae4a122fc5503d2cbbc4b382279c4", @ANYRES64=r5, @ANYRES8], 0x34}, 0x1, 0x0, 0x0, 0x400c000}, 0x4044040) [ 2168.471568] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. [ 2168.501057] nbd: must specify at least one socket 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c00020000"], 0x24}}, 0x0) 20:10:05 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async, rerun: 32) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000040)={&(0x7f0000000200)={0x68, r3, 0x200, 0x70bd2b, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1d}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000012}, 0x0) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\b\x00', @ANYRES16=r2, @ANYBLOB="010000000000000000000100"/30], 0x24}}, 0x0) 20:10:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="24000000c843f9463a82b26fa6ba6cc023d3ca0ab72236b15a3f8dd16967ee6029ff03000000000000c91c798f5bb4c857f7993252f528b23cb62ed12a5ca3c9e58f72abc68b41155cbad4c63d78e1560c2c6f89607962b91dc564d97e123ba7e97ebad2c35830ffb2dda852283d85f2e27e1bcaec6fde066f3fb342b5ecf2d60c9950ae2429b634aeb58dedced327aeaa0d44793d223b87bca6541c8f9275624915", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB='\a\x00\x00\x00', @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB='\a\x00\x00\x00', @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:05 executing program 5: sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, &(0x7f00000028c0)={0x0, 0x0, 0x0}, 0x0) r0 = socket(0x2, 0x3, 0x2) ioctl$sock_inet6_udp_SIOCINQ(r0, 0x541b, &(0x7f0000000000)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) 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$netlbl_mgmt(&(0x7f0000006bc0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYRESDEC=0x0, @ANYRES8=r2, @ANYBLOB="3ffd9c46766ef6899652b7e2f6dc45afa0ab3998f2e8db744245babeacb5ae9998d0d2845d4ae4a122fc5503d2cbbc4b382279c4", @ANYRES64=r5, @ANYRES8], 0x34}, 0x1, 0x0, 0x0, 0x400c000}, 0x4044040) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, &(0x7f00000028c0)={0x0, 0x0, 0x0}, 0x0) (async) socket(0x2, 0x3, 0x2) (async) ioctl$sock_inet6_udp_SIOCINQ(r0, 0x541b, &(0x7f0000000000)) (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$nbd(&(0x7f0000000140), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYRESDEC=0x0, @ANYRES8=r2, @ANYBLOB="3ffd9c46766ef6899652b7e2f6dc45afa0ab3998f2e8db744245babeacb5ae9998d0d2845d4ae4a122fc5503d2cbbc4b382279c4", @ANYRES64=r5, @ANYRES8], 0x34}, 0x1, 0x0, 0x0, 0x400c000}, 0x4044040) (async) 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c00020000"], 0x24}}, 0x0) 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26a90000", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x4018) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x58, 0x0, 0x2, 0xef07, 0x25dfdbfe, {}, [@L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x101}, @L2TP_ATTR_CONN_ID={0x8, 0x9, 0x2}, @L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x20}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_SESSION_ID={0x8}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e24}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}]}, 0x58}, 0x1, 0x0, 0x0, 0xc8c0}, 0x4000891) 20:10:05 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\b\x00', @ANYRES16=r2, @ANYBLOB="010000000000000000000100"/30], 0x24}}, 0x0) 20:10:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="24000000c843f9463a82b26fa6ba6cc023d3ca0ab72236b15a3f8dd16967ee6029ff03000000000000c91c798f5bb4c857f7993252f528b23cb62ed12a5ca3c9e58f72abc68b41155cbad4c63d78e1560c2c6f89607962b91dc564d97e123ba7e97ebad2c35830ffb2dda852283d85f2e27e1bcaec6fde066f3fb342b5ecf2d60c9950ae2429b634aeb58dedced327aeaa0d44793d223b87bca6541c8f9275624915", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:05 executing program 5: sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, &(0x7f00000028c0)={0x0, 0x0, 0x0}, 0x0) (async) r0 = socket(0x2, 0x3, 0x2) ioctl$sock_inet6_udp_SIOCINQ(r0, 0x541b, &(0x7f0000000000)) (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$nbd(&(0x7f0000000140), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYRESDEC=0x0, @ANYRES8=r2, @ANYBLOB="3ffd9c46766ef6899652b7e2f6dc45afa0ab3998f2e8db744245babeacb5ae9998d0d2845d4ae4a122fc5503d2cbbc4b382279c4", @ANYRES64=r5, @ANYRES8], 0x34}, 0x1, 0x0, 0x0, 0x400c000}, 0x4044040) 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c00020000"], 0x24}}, 0x0) [ 2168.699734] nbd: couldn't find a device at index 32 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26a90000", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x4018) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async, rerun: 64) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x58, 0x0, 0x2, 0xef07, 0x25dfdbfe, {}, [@L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x101}, @L2TP_ATTR_CONN_ID={0x8, 0x9, 0x2}, @L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x20}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_SESSION_ID={0x8}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e24}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}]}, 0x58}, 0x1, 0x0, 0x0, 0xc8c0}, 0x4000891) (rerun: 64) 20:10:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000240)={0x60, r5, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @broadcast}}]}, 0x60}, 0x1, 0x0, 0x0, 0x4040810}, 0x40) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000500)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x44, r8, 0x300, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}]}, 0x44}, 0x1, 0x0, 0x0, 0x40844}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000340)=ANY=[@ANYBLOB="34000000551888072b2c37475d32c2e42bc92f7712cf84f8822ca2fbbf34962021a0b27bd684c4e9c44d55563070700ebe905c008058e7f3c0202cf8553c39b6cb40", @ANYRES16=r2, @ANYBLOB="0100ffbd700002000000030000000c00050001050280000000000c00030009000000000000003a52577d59da52467308000100200000000000000039b611f37063108121dcd8aae8c4453eb87ad1e9e1e28c98d2414038ca310544072803c170b63573abc9c39eb74d4cec8cca2d9b5c26aca34d6478713e4bd91ab97d160e55cdd0cfc667068f8978b1fb1cbe77d05a02fe79"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff00"], 0x24}}, 0x0) 20:10:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\b\x00', @ANYRES16=r2, @ANYBLOB="010000000000000000000100"/30], 0x24}}, 0x0) 20:10:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000240)={0x60, r5, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @broadcast}}]}, 0x60}, 0x1, 0x0, 0x0, 0x4040810}, 0x40) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000500)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x44, r8, 0x300, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}]}, 0x44}, 0x1, 0x0, 0x0, 0x40844}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000340)=ANY=[@ANYBLOB="34000000551888072b2c37475d32c2e42bc92f7712cf84f8822ca2fbbf34962021a0b27bd684c4e9c44d55563070700ebe905c008058e7f3c0202cf8553c39b6cb40", @ANYRES16=r2, @ANYBLOB="0100ffbd700002000000030000000c00050001050280000000000c00030009000000000000003a52577d59da52467308000100200000000000000039b611f37063108121dcd8aae8c4453eb87ad1e9e1e28c98d2414038ca310544072803c170b63573abc9c39eb74d4cec8cca2d9b5c26aca34d6478713e4bd91ab97d160e55cdd0cfc667068f8978b1fb1cbe77d05a02fe79"], 0x34}}, 0x0) syz_genetlink_get_family_id$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$nbd(&(0x7f0000000140), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000240)={0x60, r5, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @broadcast}}]}, 0x60}, 0x1, 0x0, 0x0, 0x4040810}, 0x40) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) (async) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000500)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x44, r8, 0x300, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}]}, 0x44}, 0x1, 0x0, 0x0, 0x40844}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000340)=ANY=[@ANYBLOB="34000000551888072b2c37475d32c2e42bc92f7712cf84f8822ca2fbbf34962021a0b27bd684c4e9c44d55563070700ebe905c008058e7f3c0202cf8553c39b6cb40", @ANYRES16=r2, @ANYBLOB="0100ffbd700002000000030000000c00050001050280000000000c00030009000000000000003a52577d59da52467308000100200000000000000039b611f37063108121dcd8aae8c4453eb87ad1e9e1e28c98d2414038ca310544072803c170b63573abc9c39eb74d4cec8cca2d9b5c26aca34d6478713e4bd91ab97d160e55cdd0cfc667068f8978b1fb1cbe77d05a02fe79"], 0x34}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) 20:10:05 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="24000000c843f9463a82b26fa6ba6cc023d3ca0ab72236b15a3f8dd16967ee6029ff03000000000000c91c798f5bb4c857f7993252f528b23cb62ed12a5ca3c9e58f72abc68b41155cbad4c63d78e1560c2c6f89607962b91dc564d97e123ba7e97ebad2c35830ffb2dda852283d85f2e27e1bcaec6fde066f3fb342b5ecf2d60c9950ae2429b634aeb58dedced327aeaa0d44793d223b87bca6541c8f9275624915", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26a90000", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x4018) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x58, 0x0, 0x2, 0xef07, 0x25dfdbfe, {}, [@L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x101}, @L2TP_ATTR_CONN_ID={0x8, 0x9, 0x2}, @L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x20}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5, 0x22, 0x1}, @L2TP_ATTR_SESSION_ID={0x8}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e24}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}]}, 0x58}, 0x1, 0x0, 0x0, 0xc8c0}, 0x4000891) 20:10:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x58, r2, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x58}}, 0xc000) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x70, 0x0, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x70}, 0x1, 0x0, 0x0, 0x20040010}, 0xa095) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="09000003", @ANYRES16=r3, @ANYBLOB="0100000000000000000001001300040007800c00000000"], 0x24}}, 0x0) 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000"], 0x24}}, 0x0) 20:10:05 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$nbd(&(0x7f0000000140), r0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000240)={0x60, r5, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @broadcast}}]}, 0x60}, 0x1, 0x0, 0x0, 0x4040810}, 0x40) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000500)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x44, r8, 0x300, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}]}, 0x44}, 0x1, 0x0, 0x0, 0x40844}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000340)=ANY=[@ANYBLOB="34000000551888072b2c37475d32c2e42bc92f7712cf84f8822ca2fbbf34962021a0b27bd684c4e9c44d55563070700ebe905c008058e7f3c0202cf8553c39b6cb40", @ANYRES16=r2, @ANYBLOB="0100ffbd700002000000030000000c00050001050280000000000c00030009000000000000003a52577d59da52467308000100200000000000000039b611f37063108121dcd8aae8c4453eb87ad1e9e1e28c98d2414038ca310544072803c170b63573abc9c39eb74d4cec8cca2d9b5c26aca34d6478713e4bd91ab97d160e55cdd0cfc667068f8978b1fb1cbe77d05a02fe79"], 0x34}}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809de6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x2402411c) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x68, 0x0, 0x200, 0x70bd2b, 0x2ddfdbfe, {}, [@L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x5}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x2}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x5f}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xff}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e20}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x2f}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000804}, 0x40000) 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000"], 0x24}}, 0x0) 20:10:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x4, 0x1, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2168.970007] nbd: couldn't find a device at index 0 20:10:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x70, 0x0, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x70}, 0x1, 0x0, 0x0, 0x20040010}, 0xa095) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="09000003", @ANYRES16=r3, @ANYBLOB="0100000000000000000001001300040007800c00000000"], 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$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x70, 0x0, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x70}, 0x1, 0x0, 0x0, 0x20040010}, 0xa095) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="09000003", @ANYRES16=r3, @ANYBLOB="0100000000000000000001001300040007800c00000000"], 0x24}}, 0x0) (async) 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809de6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x2402411c) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x68, 0x0, 0x200, 0x70bd2b, 0x2ddfdbfe, {}, [@L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x5}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x2}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x5f}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xff}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e20}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x2f}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000804}, 0x40000) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809de6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x2402411c) (async) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x68, 0x0, 0x200, 0x70bd2b, 0x2ddfdbfe, {}, [@L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x5}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x2}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x5f}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xff}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e20}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x2f}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000804}, 0x40000) (async) 20:10:05 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x4, 0x1, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:05 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$netlbl_mgmt(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x58, r2, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x58}}, 0xc000) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) r3 = syz_open_procfs(0x0, &(0x7f0000000240)='net/psched\x00') socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x40, r1, 0x2, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}]}]}, 0x40}, 0x1, 0x0, 0x0, 0x20008045}, 0x4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x2c}, 0x1, 0x0, 0x0, 0x1}, 0x0) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000"], 0x24}}, 0x0) 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809de6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x2402411c) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x68, 0x0, 0x200, 0x70bd2b, 0x2ddfdbfe, {}, [@L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x5}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x2}, @L2TP_ATTR_RECV_SEQ={0x5, 0x12, 0x5f}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xff}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e20}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x2f}]}, 0x68}, 0x1, 0x0, 0x0, 0x4000804}, 0x40000) 20:10:05 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x4, 0x1, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:05 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$netlbl_mgmt(&(0x7f0000000040), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x58, r2, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x58}}, 0xc000) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:05 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$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x70, 0x0, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x70}, 0x1, 0x0, 0x0, 0x20040010}, 0xa095) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="09000003", @ANYRES16=r3, @ANYBLOB="0100000000000000000001001300040007800c00000000"], 0x24}}, 0x0) [ 2169.096351] nbd: couldn't find a device at index 0 20:10:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) (async, rerun: 64) r3 = syz_open_procfs(0x0, &(0x7f0000000240)='net/psched\x00') (async, rerun: 64) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x40, r1, 0x2, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}]}]}, 0x40}, 0x1, 0x0, 0x0, 0x20008045}, 0x4) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x2c}, 0x1, 0x0, 0x0, 0x1}, 0x0) (async) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) [ 2169.126836] nbd: couldn't find a device at index 32 20:10:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ffff"], 0x24}}, 0x0) 20:10:05 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) write$bt_hci(r1, &(0x7f0000000180)={0x1, @pin_code_neg_reply={{0x40e, 0x6}}}, 0xa) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) ioctl$SOUND_MIXER_READ_STEREODEVS(0xffffffffffffffff, 0x80044dfb, &(0x7f0000000000)) getsockopt$nfc_llcp(0xffffffffffffffff, 0x118, 0x0, &(0x7f0000000100)=""/126, 0x7e) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000000c0)='net/protocols\x00') getsockname$packet(r3, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @link_local}, &(0x7f0000000080)=0x18) 20:10:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) pipe(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0xa4, r3, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2c}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xc44}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x97}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xa4}, 0x1, 0x0, 0x0, 0x8004}, 0x4000010) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x100, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x30}, 0x1, 0x0, 0x0, 0x24000015}, 0x1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="e2070000", @ANYRES16=r8, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) [ 2169.217762] nbd: couldn't find a device at index 0 20:10:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x3c, 0x0, 0x10, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4004}, 0x40) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r4 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x200200) ioctl$IOC_PR_RELEASE(r4, 0x401070ca, &(0x7f0000000040)={0x27ec, 0x9, 0x1}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) (async) write$bt_hci(r1, &(0x7f0000000180)={0x1, @pin_code_neg_reply={{0x40e, 0x6}}}, 0xa) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) ioctl$SOUND_MIXER_READ_STEREODEVS(0xffffffffffffffff, 0x80044dfb, &(0x7f0000000000)) (async) getsockopt$nfc_llcp(0xffffffffffffffff, 0x118, 0x0, &(0x7f0000000100)=""/126, 0x7e) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000000c0)='net/protocols\x00') getsockname$packet(r3, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @link_local}, &(0x7f0000000080)=0x18) 20:10:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="e25901a6d280030000933f7e496ca689444d4f", @ANYRES32=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000", @ANYRES64=r3], 0x24}}, 0x10) [ 2169.280357] nbd: couldn't find a device at index 32 20:10:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) (async) r3 = syz_open_procfs(0x0, &(0x7f0000000240)='net/psched\x00') (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000280)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x40, r1, 0x2, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}]}]}, 0x40}, 0x1, 0x0, 0x0, 0x20008045}, 0x4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, 0x0, 0x200, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x2c}, 0x1, 0x0, 0x0, 0x1}, 0x0) (async) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) pipe(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0xa4, r3, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2c}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xc44}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x97}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xa4}, 0x1, 0x0, 0x0, 0x8004}, 0x4000010) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x100, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x30}, 0x1, 0x0, 0x0, 0x24000015}, 0x1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="e2070000", @ANYRES16=r8, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000"], 0x24}}, 0x0) [ 2169.351963] nbd: couldn't find a device at index 0 20:10:06 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x3c, 0x0, 0x10, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4004}, 0x40) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r4 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x200200) ioctl$IOC_PR_RELEASE(r4, 0x401070ca, &(0x7f0000000040)={0x27ec, 0x9, 0x1}) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="e25901a6d280030000933f7e496ca689444d4f", @ANYRES32=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000", @ANYRES64=r3], 0x24}}, 0x10) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) write$bt_hci(r1, &(0x7f0000000180)={0x1, @pin_code_neg_reply={{0x40e, 0x6}}}, 0xa) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) ioctl$SOUND_MIXER_READ_STEREODEVS(0xffffffffffffffff, 0x80044dfb, &(0x7f0000000000)) getsockopt$nfc_llcp(0xffffffffffffffff, 0x118, 0x0, &(0x7f0000000100)=""/126, 0x7e) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000000c0)='net/protocols\x00') getsockname$packet(r3, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @link_local}, &(0x7f0000000080)=0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r1, 0x0, 0x0) (async) write$bt_hci(r1, &(0x7f0000000180)={0x1, @pin_code_neg_reply={{0x40e, 0x6}}}, 0xa) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) ioctl$SOUND_MIXER_READ_STEREODEVS(0xffffffffffffffff, 0x80044dfb, &(0x7f0000000000)) (async) getsockopt$nfc_llcp(0xffffffffffffffff, 0x118, 0x0, &(0x7f0000000100)=""/126, 0x7e) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r2, 0x0, 0x0) (async) syz_open_procfs(0xffffffffffffffff, &(0x7f00000000c0)='net/protocols\x00') (async) getsockname$packet(r3, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @link_local}, &(0x7f0000000080)=0x18) (async) 20:10:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000180), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) pipe(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f0000000400)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000003c0)={&(0x7f0000000300)={0xa4, r3, 0x200, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2c}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xc44}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x97}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xa4}, 0x1, 0x0, 0x0, 0x8004}, 0x4000010) (async) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), 0xffffffffffffffff) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, 0x0, 0x100, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x30}, 0x1, 0x0, 0x0, 0x24000015}, 0x1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="e2070000", @ANYRES16=r8, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) [ 2169.421155] nbd: couldn't find a device at index 32 20:10:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x44, r2, 0x100, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000850}, 0x4000010) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESDEC=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c000501040200000000000c0003000900000000000000080001002000"], 0x34}}, 0x0) 20:10:06 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(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000200)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000180)={0x3c, 0x0, 0x10, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4004}, 0x40) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) r4 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x200200) ioctl$IOC_PR_RELEASE(r4, 0x401070ca, &(0x7f0000000040)={0x27ec, 0x9, 0x1}) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000"], 0x24}}, 0x0) [ 2169.464864] nbd: couldn't find a device at index 0 20:10:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="e25901a6d280030000933f7e496ca689444d4f", @ANYRES32=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000", @ANYRES64=r3], 0x24}}, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="e25901a6d280030000933f7e496ca689444d4f", @ANYRES32=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000", @ANYRES64=r3], 0x24}}, 0x10) (async) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$BLKPG(0xffffffffffffffff, 0x1269, &(0x7f0000000200)={0x9, 0x200, 0xb5, &(0x7f0000000140)="1a47ad50c4aed1a83f0898d99d85c5fd0c94e8d26cfdfce16397ade5ea1e72503e99cd6a21a2db12020a30880d64001e9d0b73baa167b7fc157b070fef1857154a71c7ca22fb6fd6b863d28e3b1746291c99c073df7508a169838535099862bb02fcb3551f32d630e189225fa0146d16bccd661930adcba6790b3a6213e5d17b8d6c4d33dfe11190111b4942e0e6f5b55ae6111cda457ffcc0b70b20714dd70f09d5461318c8dcf2a934b9ca98ea68e4c7726d31e6"}) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x48, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x4}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x7}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @loopback}]}, 0x48}}, 0x24040040) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = socket(0x0, 0x6, 0x0) sendmsg$L2TP_CMD_NOOP(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x54, 0x0, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xf75}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x20}, @L2TP_ATTR_PW_TYPE={0x6}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x1}, @L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x2}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}]}, 0x54}, 0x1, 0x0, 0x0, 0x4000}, 0x20040000) 20:10:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000300)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x50, r4, 0x300, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x50}, 0x1, 0x0, 0x0, 0x8000}, 0x4) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0xbd1cc3b61f82c162}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x20, r2, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffff}]}, 0x20}, 0x1, 0x0, 0x0, 0x8000}, 0x4004) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r2, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}]}, 0x20}, 0x1, 0x0, 0x0, 0x84}, 0x4000) 20:10:06 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$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x44, r2, 0x100, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000850}, 0x4000010) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESDEC=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c000501040200000000000c0003000900000000000000080001002000"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r0) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x44, r2, 0x100, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000850}, 0x4000010) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESDEC=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c000501040200000000000c0003000900000000000000080001002000"], 0x34}}, 0x0) (async) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000"], 0x24}}, 0x0) 20:10:06 executing program 4: socket$l2tp(0x2, 0x2, 0x73) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x10080}, 0x0) 20:10:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="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"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1920ca1f21abd230}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r4, 0x300, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffcfe8e045}]}, 0x2c}}, 0x40010) [ 2169.594904] nbd: couldn't find a device at index 0 20:10:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000300)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x50, r4, 0x300, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x50}, 0x1, 0x0, 0x0, 0x8000}, 0x4) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0xbd1cc3b61f82c162}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x20, r2, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffff}]}, 0x20}, 0x1, 0x0, 0x0, 0x8000}, 0x4004) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r2, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}]}, 0x20}, 0x1, 0x0, 0x0, 0x84}, 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$nbd(&(0x7f0000000100), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000300)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x50, r4, 0x300, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x50}, 0x1, 0x0, 0x0, 0x8000}, 0x4) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0xbd1cc3b61f82c162}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x20, r2, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffff}]}, 0x20}, 0x1, 0x0, 0x0, 0x8000}, 0x4004) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r2, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}]}, 0x20}, 0x1, 0x0, 0x0, 0x84}, 0x4000) (async) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$BLKPG(0xffffffffffffffff, 0x1269, &(0x7f0000000200)={0x9, 0x200, 0xb5, &(0x7f0000000140)="1a47ad50c4aed1a83f0898d99d85c5fd0c94e8d26cfdfce16397ade5ea1e72503e99cd6a21a2db12020a30880d64001e9d0b73baa167b7fc157b070fef1857154a71c7ca22fb6fd6b863d28e3b1746291c99c073df7508a169838535099862bb02fcb3551f32d630e189225fa0146d16bccd661930adcba6790b3a6213e5d17b8d6c4d33dfe11190111b4942e0e6f5b55ae6111cda457ffcc0b70b20714dd70f09d5461318c8dcf2a934b9ca98ea68e4c7726d31e6"}) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x48, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x4}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x7}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @loopback}]}, 0x48}}, 0x24040040) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = socket(0x0, 0x6, 0x0) sendmsg$L2TP_CMD_NOOP(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x54, 0x0, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xf75}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x20}, @L2TP_ATTR_PW_TYPE={0x6}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x1}, @L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x2}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}]}, 0x54}, 0x1, 0x0, 0x0, 0x4000}, 0x20040000) socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$BLKPG(0xffffffffffffffff, 0x1269, &(0x7f0000000200)={0x9, 0x200, 0xb5, &(0x7f0000000140)="1a47ad50c4aed1a83f0898d99d85c5fd0c94e8d26cfdfce16397ade5ea1e72503e99cd6a21a2db12020a30880d64001e9d0b73baa167b7fc157b070fef1857154a71c7ca22fb6fd6b863d28e3b1746291c99c073df7508a169838535099862bb02fcb3551f32d630e189225fa0146d16bccd661930adcba6790b3a6213e5d17b8d6c4d33dfe11190111b4942e0e6f5b55ae6111cda457ffcc0b70b20714dd70f09d5461318c8dcf2a934b9ca98ea68e4c7726d31e6"}) (async) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x48, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x4}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x7}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @loopback}]}, 0x48}}, 0x24040040) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) socket(0x0, 0x6, 0x0) (async) sendmsg$L2TP_CMD_NOOP(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x54, 0x0, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xf75}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x20}, @L2TP_ATTR_PW_TYPE={0x6}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x1}, @L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x2}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}]}, 0x54}, 0x1, 0x0, 0x0, 0x4000}, 0x20040000) (async) 20:10:06 executing program 4: socket$l2tp(0x2, 0x2, 0x73) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x10080}, 0x0) 20:10:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000180), r0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x44, r2, 0x100, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @loopback}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}]}, 0x44}, 0x1, 0x0, 0x0, 0x20000850}, 0x4000010) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESDEC=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c000501040200000000000c0003000900000000000000080001002000"], 0x34}}, 0x0) 20:10:06 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$nbd(&(0x7f0000000100), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000300)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x50, r4, 0x300, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000000}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x23}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}]}, 0x50}, 0x1, 0x0, 0x0, 0x8000}, 0x4) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0xbd1cc3b61f82c162}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x20, r2, 0x10, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffff}]}, 0x20}, 0x1, 0x0, 0x0, 0x8000}, 0x4004) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r2, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}]}, 0x20}, 0x1, 0x0, 0x0, 0x84}, 0x4000) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:06 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="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"], 0x34}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1920ca1f21abd230}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r4, 0x300, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffcfe8e045}]}, 0x2c}}, 0x40010) 20:10:06 executing program 4: socket$l2tp(0x2, 0x2, 0x73) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x10080}, 0x0) socket$l2tp(0x2, 0x2, 0x73) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x10080}, 0x0) (async) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c000200143ccad7b2576ce4"], 0x24}}, 0x0) 20:10:06 executing program 5: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="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"], 0x34}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1920ca1f21abd230}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r4, 0x300, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffcfe8e045}]}, 0x2c}}, 0x40010) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$BLKPG(0xffffffffffffffff, 0x1269, &(0x7f0000000200)={0x9, 0x200, 0xb5, &(0x7f0000000140)="1a47ad50c4aed1a83f0898d99d85c5fd0c94e8d26cfdfce16397ade5ea1e72503e99cd6a21a2db12020a30880d64001e9d0b73baa167b7fc157b070fef1857154a71c7ca22fb6fd6b863d28e3b1746291c99c073df7508a169838535099862bb02fcb3551f32d630e189225fa0146d16bccd661930adcba6790b3a6213e5d17b8d6c4d33dfe11190111b4942e0e6f5b55ae6111cda457ffcc0b70b20714dd70f09d5461318c8dcf2a934b9ca98ea68e4c7726d31e6"}) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x48, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x4}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x7}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @loopback}]}, 0x48}}, 0x24040040) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = socket(0x0, 0x6, 0x0) sendmsg$L2TP_CMD_NOOP(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x54, 0x0, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xf75}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x20}, @L2TP_ATTR_PW_TYPE={0x6}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x1}, @L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x2}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}]}, 0x54}, 0x1, 0x0, 0x0, 0x4000}, 0x20040000) socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$BLKPG(0xffffffffffffffff, 0x1269, &(0x7f0000000200)={0x9, 0x200, 0xb5, &(0x7f0000000140)="1a47ad50c4aed1a83f0898d99d85c5fd0c94e8d26cfdfce16397ade5ea1e72503e99cd6a21a2db12020a30880d64001e9d0b73baa167b7fc157b070fef1857154a71c7ca22fb6fd6b863d28e3b1746291c99c073df7508a169838535099862bb02fcb3551f32d630e189225fa0146d16bccd661930adcba6790b3a6213e5d17b8d6c4d33dfe11190111b4942e0e6f5b55ae6111cda457ffcc0b70b20714dd70f09d5461318c8dcf2a934b9ca98ea68e4c7726d31e6"}) (async) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x48, 0x0, 0x20, 0x70bd2b, 0x25dfdbfd, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x4}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x7}, @L2TP_ATTR_PW_TYPE={0x6, 0x1, 0x8}, @L2TP_ATTR_DEBUG={0x8, 0x11, 0x1}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @loopback}]}, 0x48}}, 0x24040040) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) socket(0x0, 0x6, 0x0) (async) sendmsg$L2TP_CMD_NOOP(r1, &(0x7f0000000440)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x54, 0x0, 0x800, 0x70bd2c, 0x25dfdbfd, {}, [@L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0xf75}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x20}, @L2TP_ATTR_PW_TYPE={0x6}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x1}, @L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x2}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x9}]}, 0x54}, 0x1, 0x0, 0x0, 0x4000}, 0x20040000) (async) 20:10:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c000300090000008000000008fd0900208048a568434d96fe8e8d98eec5f212bd5823038d02345fa7b5c3e85492c3ed430c06d41c0e71275f1e44660fe7d1533f0c69d2e7941b5308461be51dc83a0f3b76c68541fb25cb29118e0d4d0c0bc7ac2800b17a3e5f8233ed986fba9052c6e80cd0d19ca9d3270799beb793207b31ff02eca2c2c038decb0c374a126c9c85f64caeb91c0d9edc8103c8f3620a81a8fc00353a1001c81c58384c01fd77bda4a640adf4"], 0x34}, 0x1, 0x0, 0x0, 0x1}, 0x0) 20:10:06 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$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x34, 0x0, 0x300, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7f}]}, 0x34}, 0x1, 0x0, 0x0, 0x4008050}, 0x4040000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) r4 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x40001, 0x0) ioctl$SOUND_MIXER_WRITE_RECSRC(r4, 0xc0044dff, &(0x7f0000000080)) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c000200143ccad7b2576ce4"], 0x24}}, 0x0) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYRES16=r0, @ANYRES16, @ANYBLOB="00000000000005d45e658675fd6d2cd77eff745840000000001313d6008000000000000000000000062ef9a714d52081f24e6271e9f1563baa25a237b41957ee79b00b52afe1c3ed4641"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x4000000) 20:10:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/dev\x00') r3 = socket(0x2c, 0x2, 0x2) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x8c, 0x0, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r2}, {0x8, 0x1, r4}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0xbd}, 0x1, 0x0, 0x0, 0x10}, 0x400c884) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c000300090000008000000008fd0900208048a568434d96fe8e8d98eec5f212bd5823038d02345fa7b5c3e85492c3ed430c06d41c0e71275f1e44660fe7d1533f0c69d2e7941b5308461be51dc83a0f3b76c68541fb25cb29118e0d4d0c0bc7ac2800b17a3e5f8233ed986fba9052c6e80cd0d19ca9d3270799beb793207b31ff02eca2c2c038decb0c374a126c9c85f64caeb91c0d9edc8103c8f3620a81a8fc00353a1001c81c58384c01fd77bda4a640adf4"], 0x34}, 0x1, 0x0, 0x0, 0x1}, 0x0) [ 2169.936471] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2169.956091] nbd: must specify a device to reconfigure 20:10:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x34, 0x0, 0x300, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7f}]}, 0x34}, 0x1, 0x0, 0x0, 0x4008050}, 0x4040000) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) (async) r4 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x40001, 0x0) ioctl$SOUND_MIXER_WRITE_RECSRC(r4, 0xc0044dff, &(0x7f0000000080)) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c000200143ccad7b2576ce4"], 0x24}}, 0x0) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYRES16=r0, @ANYRES16, @ANYBLOB="00000000000005d45e658675fd6d2cd77eff745840000000001313d6008000000000000000000000062ef9a714d52081f24e6271e9f1563baa25a237b41957ee79b00b52afe1c3ed4641"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x4000000) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYRES16=r0, @ANYRES16, @ANYBLOB="00000000000005d45e658675fd6d2cd77eff745840000000001313d6008000000000000000000000062ef9a714d52081f24e6271e9f1563baa25a237b41957ee79b00b52afe1c3ed4641"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x4000000) (async) 20:10:06 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c000300090000008000000008fd0900208048a568434d96fe8e8d98eec5f212bd5823038d02345fa7b5c3e85492c3ed430c06d41c0e71275f1e44660fe7d1533f0c69d2e7941b5308461be51dc83a0f3b76c68541fb25cb29118e0d4d0c0bc7ac2800b17a3e5f8233ed986fba9052c6e80cd0d19ca9d3270799beb793207b31ff02eca2c2c038decb0c374a126c9c85f64caeb91c0d9edc8103c8f3620a81a8fc00353a1001c81c58384c01fd77bda4a640adf4"], 0x34}, 0x1, 0x0, 0x0, 0x1}, 0x0) 20:10:06 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$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x34, 0x0, 0x300, 0x70bd28, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfffffffffffffffa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7f}]}, 0x34}, 0x1, 0x0, 0x0, 0x4008050}, 0x4040000) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) (async) r4 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x40001, 0x0) ioctl$SOUND_MIXER_WRITE_RECSRC(r4, 0xc0044dff, &(0x7f0000000080)) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/dev\x00') (async) r3 = socket(0x2c, 0x2, 0x2) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x8c, 0x0, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r2}, {0x8, 0x1, r4}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0xbd}, 0x1, 0x0, 0x0, 0x10}, 0x400c884) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2170.088488] nbd: couldn't find a device at index 0 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:06 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYRES16=r0, @ANYRES16, @ANYBLOB="00000000000005d45e658675fd6d2cd77eff745840000000001313d6008000000000000000000000062ef9a714d52081f24e6271e9f1563baa25a237b41957ee79b00b52afe1c3ed4641"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x4000000) 20:10:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:06 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x14, 0x0, 0x4, 0x70bd28, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x48021}, 0x4000001) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c5b8379140eeb5a00050001040200000000000c0000000000000800010020"], 0x34}}, 0x0) [ 2170.155774] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2170.188184] nbd: must specify a device to reconfigure 20:10:06 executing program 4: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000300)={0x14, 0x7, &(0x7f0000000000)=@framed={{0x18, 0x0, 0x0, 0x0, 0x30, 0x0, 0x0, 0x0, 0x7b}, [@alu={0x4, 0x1, 0x6, 0x0, 0x5, 0x50, 0xffffffffffffffff}, @alu={0x4, 0x1, 0x8, 0x5, 0xb, 0xfffffffffffffffe}, @map_idx={0x18, 0x3, 0x5, 0x0, 0x9}]}, &(0x7f0000000080)='syzkaller\x00', 0x3f, 0x7a, &(0x7f0000000140)=""/122, 0x41100, 0x1, '\x00', 0x0, 0x13, 0xffffffffffffffff, 0x8, &(0x7f00000000c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f00000001c0)={0x2, 0xd, 0x9, 0xdcfe}, 0x10, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, &(0x7f0000000200)=[r0, 0xffffffffffffffff]}, 0x80) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000000000000100000004a5d23a020002000000000000000000"], 0x24}}, 0x0) 20:10:06 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) 20:10:06 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:06 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$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/dev\x00') r3 = socket(0x2c, 0x2, 0x2) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x8c, 0x0, 0x10, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r2}, {0x8, 0x1, r4}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0xbd}, 0x1, 0x0, 0x0, 0x10}, 0x400c884) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2170.213579] nbd: couldn't find a device at index 0 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:07 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) syz_init_net_socket$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) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) [ 2170.297810] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2170.321814] nbd: must specify at least one socket [ 2170.338861] netlink: 32 bytes leftover after parsing attributes in process `syz-executor.3'. 20:10:07 executing program 4: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000300)={0x14, 0x7, &(0x7f0000000000)=@framed={{0x18, 0x0, 0x0, 0x0, 0x30, 0x0, 0x0, 0x0, 0x7b}, [@alu={0x4, 0x1, 0x6, 0x0, 0x5, 0x50, 0xffffffffffffffff}, @alu={0x4, 0x1, 0x8, 0x5, 0xb, 0xfffffffffffffffe}, @map_idx={0x18, 0x3, 0x5, 0x0, 0x9}]}, &(0x7f0000000080)='syzkaller\x00', 0x3f, 0x7a, &(0x7f0000000140)=""/122, 0x41100, 0x1, '\x00', 0x0, 0x13, 0xffffffffffffffff, 0x8, &(0x7f00000000c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f00000001c0)={0x2, 0xd, 0x9, 0xdcfe}, 0x10, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, &(0x7f0000000200)=[r0, 0xffffffffffffffff]}, 0x80) 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$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000000000000100000004a5d23a020002000000000000000000"], 0x24}}, 0x0) 20:10:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="00012cbd7000ffdbdf25020000000c000300000000000000000008000100000000000c00050004000000000000000c000400e1ffffffffffffff08000100000000000c0005000a00000000000000"], 0x54}, 0x1, 0x0, 0x0, 0x8040}, 0x4800) 20:10:07 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x14, 0x0, 0x4, 0x70bd28, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x48021}, 0x4000001) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c5b8379140eeb5a00050001040200000000000c0000000000000800010020"], 0x34}}, 0x0) [ 2170.347786] nbd: must specify a device to reconfigure [ 2170.358406] nbd: couldn't find a device at index 0 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:07 executing program 4: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000300)={0x14, 0x7, &(0x7f0000000000)=@framed={{0x18, 0x0, 0x0, 0x0, 0x30, 0x0, 0x0, 0x0, 0x7b}, [@alu={0x4, 0x1, 0x6, 0x0, 0x5, 0x50, 0xffffffffffffffff}, @alu={0x4, 0x1, 0x8, 0x5, 0xb, 0xfffffffffffffffe}, @map_idx={0x18, 0x3, 0x5, 0x0, 0x9}]}, &(0x7f0000000080)='syzkaller\x00', 0x3f, 0x7a, &(0x7f0000000140)=""/122, 0x41100, 0x1, '\x00', 0x0, 0x13, 0xffffffffffffffff, 0x8, &(0x7f00000000c0)={0x0, 0x2}, 0x8, 0x10, &(0x7f00000001c0)={0x2, 0xd, 0x9, 0xdcfe}, 0x10, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, &(0x7f0000000200)=[r0, 0xffffffffffffffff]}, 0x80) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000000000000100000004a5d23a020002000000000000000000"], 0x24}}, 0x0) 20:10:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="00012cbd7000ffdbdf25020000000c000300000000000000000008000100000000000c00050004000000000000000c000400e1ffffffffffffff08000100000000000c0005000a00000000000000"], 0x54}, 0x1, 0x0, 0x0, 0x8040}, 0x4800) [ 2170.423463] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2170.439711] nbd: must specify at least one socket [ 2170.445570] nbd: couldn't find a device at index 0 20:10:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x3, 0x1) sendmmsg$nfc_llcp(r1, &(0x7f0000001b40)=[{&(0x7f0000000380)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "de6f67354daa2b6deda5dd5256c4da4e906700ca2d4456a384935f35f907785fc7300bbf307a070e577b8fec34521fc2d12ce4782bca0de3c93783a118f2d4"}, 0x60, &(0x7f0000001500)=[{0x0}, {0x0}], 0x2, &(0x7f0000001540)={0x28, 0x0, 0x0, "07d11a17da50977c801d4341479271f308"}, 0x28}], 0x1, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = add_key(&(0x7f0000000000)='syzkaller\x00', &(0x7f0000000080)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffc) r4 = add_key$keyring(&(0x7f00000000c0), &(0x7f0000000140)={'syz', 0x2}, 0x0, 0x0, 0x0) keyctl$KEYCTL_MOVE(0x1e, r3, 0xfffffffffffffff9, r4, 0x0) r5 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r5, 0xfffffffffffffffc) keyctl$unlink(0x9, r5, r4) add_key(&(0x7f0000000180)='blacklist\x00', &(0x7f00000001c0)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffb) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:07 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000180)={&(0x7f0000000140)={0x14, 0x0, 0x4, 0x70bd28, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x48021}, 0x4000001) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c5b8379140eeb5a00050001040200000000000c0000000000000800010020"], 0x34}}, 0x0) [ 2170.480474] netlink: 32 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2170.495913] nbd: must specify a device to reconfigure 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000000)='/proc/asound/card2/oss_mixer\x00', 0x1a1200, 0x0) 20:10:07 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r1) [ 2170.532557] nbd: couldn't find a device at index 0 20:10:07 executing program 5: 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="00012cbd7000ffdbdf25020000000c000300000000000000000008000100000000000c00050004000000000000000c000400e1ffffffffffffff08000100000000000c0005000a00000000000000"], 0x54}, 0x1, 0x0, 0x0, 0x8040}, 0x4800) 20:10:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x3, 0x1) sendmmsg$nfc_llcp(r1, &(0x7f0000001b40)=[{&(0x7f0000000380)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "de6f67354daa2b6deda5dd5256c4da4e906700ca2d4456a384935f35f907785fc7300bbf307a070e577b8fec34521fc2d12ce4782bca0de3c93783a118f2d4"}, 0x60, &(0x7f0000001500)=[{0x0}, {0x0}], 0x2, &(0x7f0000001540)={0x28, 0x0, 0x0, "07d11a17da50977c801d4341479271f308"}, 0x28}], 0x1, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = add_key(&(0x7f0000000000)='syzkaller\x00', &(0x7f0000000080)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffc) r4 = add_key$keyring(&(0x7f00000000c0), &(0x7f0000000140)={'syz', 0x2}, 0x0, 0x0, 0x0) keyctl$KEYCTL_MOVE(0x1e, r3, 0xfffffffffffffff9, r4, 0x0) r5 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r5, 0xfffffffffffffffc) keyctl$unlink(0x9, r5, r4) add_key(&(0x7f0000000180)='blacklist\x00', &(0x7f00000001c0)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffb) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nfc_llcp(0x27, 0x3, 0x1) (async) sendmmsg$nfc_llcp(r1, &(0x7f0000001b40)=[{&(0x7f0000000380)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "de6f67354daa2b6deda5dd5256c4da4e906700ca2d4456a384935f35f907785fc7300bbf307a070e577b8fec34521fc2d12ce4782bca0de3c93783a118f2d4"}, 0x60, &(0x7f0000001500)=[{0x0}, {0x0}], 0x2, &(0x7f0000001540)={0x28, 0x0, 0x0, "07d11a17da50977c801d4341479271f308"}, 0x28}], 0x1, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) add_key(&(0x7f0000000000)='syzkaller\x00', &(0x7f0000000080)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffc) (async) add_key$keyring(&(0x7f00000000c0), &(0x7f0000000140)={'syz', 0x2}, 0x0, 0x0, 0x0) (async) keyctl$KEYCTL_MOVE(0x1e, r3, 0xfffffffffffffff9, r4, 0x0) (async) add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) (async) keyctl$unlink(0x9, r5, 0xfffffffffffffffc) (async) keyctl$unlink(0x9, r5, r4) (async) add_key(&(0x7f0000000180)='blacklist\x00', &(0x7f00000001c0)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffb) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="30000000f632c7258cc06c71ebc995e404d880e4bcbe53a75fbc199745ad261229943e864a9e0a", @ANYRES16=r2, @ANYBLOB="010000000000000000000500000008000100000000000c00078008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00nbd\x00'], 0x30}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/igmp6\x00') sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x88, r2, 0x802, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':&'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000000000000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffff}]}, 0x88}, 0x1, 0x0, 0x0, 0x40}, 0x8080) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f00000003c0)={0x40, r7, 0x20, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x40}, 0x1, 0x0, 0x0, 0x80}, 0x3aa4e3ef58d1e412) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x40, r4, 0x300, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}]}, 0x40}, 0x1, 0x0, 0x0, 0xc4}, 0x24044000) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x68, r2, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x45}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x106}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd620}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x68}, 0x1, 0x0, 0x0, 0x480b1}, 0x4010) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYRES16=r5, @ANYRES64=r0, @ANYRES8=r5, @ANYRESOCT=r3], 0x34}}, 0x0) 20:10:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000000)='/proc/asound/card2/oss_mixer\x00', 0x1a1200, 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$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000000)='/proc/asound/card2/oss_mixer\x00', 0x1a1200, 0x0) (async) 20:10:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nfc_llcp(0x27, 0x3, 0x1) sendmmsg$nfc_llcp(r1, &(0x7f0000001b40)=[{&(0x7f0000000380)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "de6f67354daa2b6deda5dd5256c4da4e906700ca2d4456a384935f35f907785fc7300bbf307a070e577b8fec34521fc2d12ce4782bca0de3c93783a118f2d4"}, 0x60, &(0x7f0000001500)=[{0x0}, {0x0}], 0x2, &(0x7f0000001540)={0x28, 0x0, 0x0, "07d11a17da50977c801d4341479271f308"}, 0x28}], 0x1, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = add_key(&(0x7f0000000000)='syzkaller\x00', &(0x7f0000000080)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffc) r4 = add_key$keyring(&(0x7f00000000c0), &(0x7f0000000140)={'syz', 0x2}, 0x0, 0x0, 0x0) keyctl$KEYCTL_MOVE(0x1e, r3, 0xfffffffffffffff9, r4, 0x0) r5 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r5, 0xfffffffffffffffc) keyctl$unlink(0x9, r5, r4) add_key(&(0x7f0000000180)='blacklist\x00', &(0x7f00000001c0)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffb) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nfc_llcp(0x27, 0x3, 0x1) (async) sendmmsg$nfc_llcp(r1, &(0x7f0000001b40)=[{&(0x7f0000000380)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "de6f67354daa2b6deda5dd5256c4da4e906700ca2d4456a384935f35f907785fc7300bbf307a070e577b8fec34521fc2d12ce4782bca0de3c93783a118f2d4"}, 0x60, &(0x7f0000001500)=[{0x0}, {0x0}], 0x2, &(0x7f0000001540)={0x28, 0x0, 0x0, "07d11a17da50977c801d4341479271f308"}, 0x28}], 0x1, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) add_key(&(0x7f0000000000)='syzkaller\x00', &(0x7f0000000080)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffc) (async) add_key$keyring(&(0x7f00000000c0), &(0x7f0000000140)={'syz', 0x2}, 0x0, 0x0, 0x0) (async) keyctl$KEYCTL_MOVE(0x1e, r3, 0xfffffffffffffff9, r4, 0x0) (async) add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) (async) keyctl$unlink(0x9, r5, 0xfffffffffffffffc) (async) keyctl$unlink(0x9, r5, r4) (async) add_key(&(0x7f0000000180)='blacklist\x00', &(0x7f00000001c0)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffb) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) [ 2170.604753] nbd: couldn't find a device at index 0 [ 2170.618774] netlink: 32 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2170.637244] nbd: must specify a device to reconfigure 20:10:07 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r1) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r1) (async) 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) openat$proc_mixer(0xffffffffffffff9c, &(0x7f0000000000)='/proc/asound/card2/oss_mixer\x00', 0x1a1200, 0x0) 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x40, r4, 0x300, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}]}, 0x40}, 0x1, 0x0, 0x0, 0xc4}, 0x24044000) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x68, r2, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x45}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x106}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd620}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x68}, 0x1, 0x0, 0x0, 0x480b1}, 0x4010) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYRES16=r5, @ANYRES64=r0, @ANYRES8=r5, @ANYRESOCT=r3], 0x34}}, 0x0) 20:10:07 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="30000000f632c7258cc06c71ebc995e404d880e4bcbe53a75fbc199745ad261229943e864a9e0a", @ANYRES16=r2, @ANYBLOB="010000000000000000000500000008000100000000000c00078008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00nbd\x00'], 0x30}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) (async) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/igmp6\x00') sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x88, r2, 0x802, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':&'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000000000000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffff}]}, 0x88}, 0x1, 0x0, 0x0, 0x40}, 0x8080) (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$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f00000003c0)={0x40, r7, 0x20, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x40}, 0x1, 0x0, 0x0, 0x80}, 0x3aa4e3ef58d1e412) (async) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2170.746484] nbd: couldn't find a device at index 0 20:10:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) read$FUSE(r1, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x68, 0x0, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x68}, 0x1, 0x0, 0x0, 0x8804}, 0x2000050) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r2) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r10, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x90, r9, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9000000000000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r10}, {0x8, 0x1, r4}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/cuse\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/cuse\x00'}]}, 0x90}, 0x1, 0x0, 0x0, 0x4040}, 0x4040) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3198}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40}]}, 0x2c}}, 0x0) 20:10:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007cee87df3b002140b80a7130200"], 0x24}}, 0x0) 20:10:07 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r1) 20:10:07 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$nbd(&(0x7f0000000140), r0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x40, r4, 0x300, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}]}, 0x40}, 0x1, 0x0, 0x0, 0xc4}, 0x24044000) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x68, r2, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x45}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x106}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd620}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x68}, 0x1, 0x0, 0x0, 0x480b1}, 0x4010) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYRES16=r5, @ANYRES64=r0, @ANYRES8=r5, @ANYRESOCT=r3], 0x34}}, 0x0) 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) read$FUSE(r1, 0x0, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x68, 0x0, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x68}, 0x1, 0x0, 0x0, 0x8804}, 0x2000050) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r2) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r10, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x90, r9, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9000000000000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r10}, {0x8, 0x1, r4}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/cuse\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/cuse\x00'}]}, 0x90}, 0x1, 0x0, 0x0, 0x4040}, 0x4040) (async) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3198}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40}]}, 0x2c}}, 0x0) 20:10:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007cee87df3b002140b80a7130200"], 0x24}}, 0x0) 20:10:07 executing program 1: sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:07 executing program 3: openat$adsp1(0xffffffffffffff9c, &(0x7f0000000100), 0xf01, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000180)) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000001511fa1bbc4d1d9f6934c13157450ac5e2db6fb95e16e0498ec8bab72341d3a10af9044f6019515bde528efe508d42cba80c", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="30000000f632c7258cc06c71ebc995e404d880e4bcbe53a75fbc199745ad261229943e864a9e0a", @ANYRES16=r2, @ANYBLOB="010000000000000000000500000008000100000000000c00078008000100", @ANYRES32, @ANYBLOB='\b\x00\n\x00nbd\x00'], 0x30}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) (async) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/igmp6\x00') sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x88, r2, 0x802, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':&'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000000000000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffff}]}, 0x88}, 0x1, 0x0, 0x0, 0x40}, 0x8080) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000400)={&(0x7f00000003c0)={0x40, r7, 0x20, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x24}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x40}, 0x1, 0x0, 0x0, 0x80}, 0x3aa4e3ef58d1e412) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2170.886218] nbd: must specify at least one socket [ 2170.899440] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2170.920788] nbd: must specify at least one socket [ 2170.930108] nbd: couldn't find a device at index 0 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 1: sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) read$FUSE(r1, 0x0, 0x0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x68, 0x0, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}]}, 0x68}, 0x1, 0x0, 0x0, 0x8804}, 0x2000050) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r2) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r10, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000340)={0x90, r9, 0x800, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9000000000000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r10}, {0x8, 0x1, r4}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/cuse\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, '/dev/cuse\x00'}]}, 0x90}, 0x1, 0x0, 0x0, 0x4040}, 0x4040) (async) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x2c, r11, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3198}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40}]}, 0x2c}}, 0x0) 20:10:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007cee87df3b002140b80a7130200"], 0x24}}, 0x0) 20:10:07 executing program 3: openat$adsp1(0xffffffffffffff9c, &(0x7f0000000100), 0xf01, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000180)) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000001511fa1bbc4d1d9f6934c13157450ac5e2db6fb95e16e0498ec8bab72341d3a10af9044f6019515bde528efe508d42cba80c", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) [ 2170.988658] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2171.008589] nbd: must specify at least one socket [ 2171.017316] nbd: must specify at least one socket 20:10:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="a8afc22d", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) bind$bt_sco(0xffffffffffffffff, &(0x7f0000000000)={0x1f, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x11}}, 0x8) [ 2171.040469] nbd: couldn't find a device at index 0 20:10:07 executing program 1: sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$L2TP_CMD_SESSION_CREATE(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 executing program 2: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r0, 0xab00, r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000140)={0x80000000, &(0x7f0000000000), &(0x7f0000000080)=[{{0x80000000}}]}) ioctl$MEDIA_IOC_ENUM_LINKS(r3, 0xc0287c02, &(0x7f0000000240)={r4, &(0x7f0000000180), &(0x7f00000001c0)}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:07 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x52000) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) [ 2171.095898] netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2171.107862] nbd: must specify at least one socket 20:10:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="a8afc22d", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) bind$bt_sco(0xffffffffffffffff, &(0x7f0000000000)={0x1f, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x11}}, 0x8) 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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="a8afc22d", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) bind$bt_sco(0xffffffffffffffff, &(0x7f0000000000)={0x1f, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x11}}, 0x8) (async) 20:10:07 executing program 3: openat$adsp1(0xffffffffffffff9c, &(0x7f0000000100), 0xf01, 0x0) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000180)) (async, rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000001511fa1bbc4d1d9f6934c13157450ac5e2db6fb95e16e0498ec8bab72341d3a10af9044f6019515bde528efe508d42cba80c", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:07 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$nbd(&(0x7f0000000100), r1) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) (async, rerun: 32) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000140)={0x80000000, &(0x7f0000000000), &(0x7f0000000080)=[{{0x80000000}}]}) (rerun: 32) ioctl$MEDIA_IOC_ENUM_LINKS(r3, 0xc0287c02, &(0x7f0000000240)={r4, &(0x7f0000000180), &(0x7f00000001c0)}) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (rerun: 32) 20:10:07 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x52000) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x52000) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:07 executing program 2: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r0, 0xab00, r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:08 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="a8afc22d", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async, rerun: 64) bind$bt_sco(0xffffffffffffffff, &(0x7f0000000000)={0x1f, @fixed={'\xaa\xaa\xaa\xaa\xaa', 0x11}}, 0x8) (rerun: 64) 20:10:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f0000000140)={0x80000000, &(0x7f0000000000), &(0x7f0000000080)=[{{0x80000000}}]}) ioctl$MEDIA_IOC_ENUM_LINKS(r3, 0xc0287c02, &(0x7f0000000240)={r4, &(0x7f0000000180), &(0x7f00000001c0)}) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:08 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x52000) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:08 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$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESDEC=r0, @ANYRES32=0x0, @ANYRESHEX=r1], 0x34}}, 0x40084) 20:10:08 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c009f0001040200000000000c0003008ed57c567ab17a0ceabf7aa879ebd7fd62f80900000000000000080001"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r3) 20:10:08 executing program 2: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r0, 0xab00, 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$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r0, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)) (async) ioctl$NBD_SET_SOCK(r0, 0xab00, r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) setregid(0xee00, 0xee00) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/dev_snmp6\x00') getsockname$packet(r1, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000080)=0x14) ioctl$SOUND_MIXER_READ_STEREODEVS(r1, 0x80044dfb, &(0x7f00000000c0)) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESDEC=r0, @ANYRES32=0x0, @ANYRESHEX=r1], 0x34}}, 0x40084) 20:10:08 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$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c004de47698bb50cb46a34ba60000aaa422f13859f08871afc95a6b000000", @ANYRES16=r2, @ANYBLOB="10002abd7000fbdbdf25060000000800020003000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20008000}, 0x1) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$L2TP_CMD_TUNNEL_GET(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x6c, r3, 0x800, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x26}}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @private1={0xfc, 0x1, '\x00', 0x1}}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_PEER_CONN_ID={0x8}]}, 0x6c}, 0x1, 0x0, 0x0, 0x840}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24e44bbc3ab539ef423697612a45e870000000", @ANYRES16=r4, @ANYBLOB="010081000000000000000100000004ff077ed6a36928006d0c604d000000cc7e29e7ff55ef4aaeb1"], 0x24}}, 0x0) 20:10:08 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) [ 2171.454956] nbd: must specify a device to reconfigure 20:10:08 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 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$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c009f0001040200000000000c0003008ed57c567ab17a0ceabf7aa879ebd7fd62f80900000000000000080001"], 0x34}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r3) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/dev_snmp6\x00') getsockname$packet(r1, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000080)=0x14) (async) ioctl$SOUND_MIXER_READ_STEREODEVS(r1, 0x80044dfb, &(0x7f00000000c0)) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async, rerun: 32) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) (async, rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESDEC=r0, @ANYRES32=0x0, @ANYRESHEX=r1], 0x34}}, 0x40084) 20:10:08 executing program 0: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r0, 0xab00, r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async, rerun: 64) setregid(0xee00, 0xee00) (rerun: 64) 20:10:08 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c009f0001040200000000000c0003008ed57c567ab17a0ceabf7aa879ebd7fd62f80900000000000000080001"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r3) syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c009f0001040200000000000c0003008ed57c567ab17a0ceabf7aa879ebd7fd62f80900000000000000080001"], 0x34}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r3) (async) 20:10:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c004de47698bb50cb46a34ba60000aaa422f13859f08871afc95a6b000000", @ANYRES16=r2, @ANYBLOB="10002abd7000fbdbdf25060000000800020003000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20008000}, 0x1) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$L2TP_CMD_TUNNEL_GET(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x6c, r3, 0x800, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x26}}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @private1={0xfc, 0x1, '\x00', 0x1}}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_PEER_CONN_ID={0x8}]}, 0x6c}, 0x1, 0x0, 0x0, 0x840}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24e44bbc3ab539ef423697612a45e870000000", @ANYRES16=r4, @ANYBLOB="010081000000000000000100000004ff077ed6a36928006d0c604d000000cc7e29e7ff55ef4aaeb1"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c004de47698bb50cb46a34ba60000aaa422f13859f08871afc95a6b000000", @ANYRES16=r2, @ANYBLOB="10002abd7000fbdbdf25060000000800020003000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20008000}, 0x1) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), 0xffffffffffffffff) (async) sendmsg$L2TP_CMD_TUNNEL_GET(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x6c, r3, 0x800, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x26}}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @private1={0xfc, 0x1, '\x00', 0x1}}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_PEER_CONN_ID={0x8}]}, 0x6c}, 0x1, 0x0, 0x0, 0x840}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24e44bbc3ab539ef423697612a45e870000000", @ANYRES16=r4, @ANYBLOB="010081000000000000000100000004ff077ed6a36928006d0c604d000000cc7e29e7ff55ef4aaeb1"], 0x24}}, 0x0) (async) [ 2171.546683] nbd: must specify a device to reconfigure 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/dev_snmp6\x00') getsockname$packet(r1, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000080)=0x14) (async) ioctl$SOUND_MIXER_READ_STEREODEVS(r1, 0x80044dfb, &(0x7f00000000c0)) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) setregid(0xee00, 0xee00) 20:10:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x40, r4, 0x300, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}]}, 0x40}, 0x1, 0x0, 0x0, 0xc4}, 0x24044000) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x68, r2, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x45}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x106}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xd620}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x68}, 0x1, 0x0, 0x0, 0x480b1}, 0x4010) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYRES16=r5, @ANYRES64=r0, @ANYRES8=r5, @ANYRESOCT=r3], 0x34}}, 0x0) 20:10:08 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$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESHEX=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) [ 2171.657882] nbd: must specify a device to reconfigure 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), r0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, r2, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x20}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xffff}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x20}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'ip6tnl0\x00'}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}]}, 0x68}, 0x1, 0x0, 0x0, 0x5605dbc264ceb9d1}, 0x80) 20:10:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x7c, 0x0, 0x20, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x24f}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0xc, 0xa, '(!-(#}\\^'}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x8804}, 0x440c4) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01000000ecffd7f1cc016b140000040007800c0002000000001000000000"], 0x24}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) 20:10:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c004de47698bb50cb46a34ba60000aaa422f13859f08871afc95a6b000000", @ANYRES16=r2, @ANYBLOB="10002abd7000fbdbdf25060000000800020003000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20008000}, 0x1) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$L2TP_CMD_TUNNEL_GET(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x6c, r3, 0x800, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x26}}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @private1={0xfc, 0x1, '\x00', 0x1}}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_PEER_CONN_ID={0x8}]}, 0x6c}, 0x1, 0x0, 0x0, 0x840}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24e44bbc3ab539ef423697612a45e870000000", @ANYRES16=r4, @ANYBLOB="010081000000000000000100000004ff077ed6a36928006d0c604d000000cc7e29e7ff55ef4aaeb1"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB="1c004de47698bb50cb46a34ba60000aaa422f13859f08871afc95a6b000000", @ANYRES16=r2, @ANYBLOB="10002abd7000fbdbdf25060000000800020003000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20008000}, 0x1) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000200), 0xffffffffffffffff) (async) sendmsg$L2TP_CMD_TUNNEL_GET(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x6c, r3, 0x800, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_IP_DADDR={0x8, 0x19, @dev={0xac, 0x14, 0x14, 0x26}}, @L2TP_ATTR_IP6_DADDR={0x14, 0x20, @private1={0xfc, 0x1, '\x00', 0x1}}, @L2TP_ATTR_ENCAP_TYPE={0x6}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x2}, @L2TP_ATTR_RECV_TIMEOUT={0xc, 0x16, 0x6}, @L2TP_ATTR_IP_SADDR={0x8, 0x18, @local}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x4}, @L2TP_ATTR_PEER_CONN_ID={0x8}]}, 0x6c}, 0x1, 0x0, 0x0, 0x840}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24e44bbc3ab539ef423697612a45e870000000", @ANYRES16=r4, @ANYBLOB="010081000000000000000100000004ff077ed6a36928006d0c604d000000cc7e29e7ff55ef4aaeb1"], 0x24}}, 0x0) (async) 20:10:08 executing program 5: syz_genetlink_get_family_id$nl80211(&(0x7f00000003c0), 0xffffffffffffffff) 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_ADD(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x90291041}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x6c, 0x0, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x6c}}, 0x40040) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYRESOCT=0x0, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x20, r4, 0x200, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x24048000}, 0x20000001) 20:10:08 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYRES16=r2, @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:08 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$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESHEX=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 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$nbd(&(0x7f0000000140), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESHEX=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), r0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, r2, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x20}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xffff}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x20}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'ip6tnl0\x00'}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}]}, 0x68}, 0x1, 0x0, 0x0, 0x5605dbc264ceb9d1}, 0x80) 20:10:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYBLOB="0100000000080000000001000000040007800c0002000000ff"], 0x24}}, 0x0) 20:10:08 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$nbd(&(0x7f0000000140), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESHEX=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), r0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, r2, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x20}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xffff}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x20}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'ip6tnl0\x00'}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}]}, 0x68}, 0x1, 0x0, 0x0, 0x5605dbc264ceb9d1}, 0x80) socket$nl_generic(0x10, 0x3, 0x10) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), r0) (async) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000080)={0x68, r2, 0x100, 0x70bd2d, 0x25dfdbff, {}, [@L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x20}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xffff}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_PEER_CONN_ID={0x8, 0xa, 0x3}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_LNS_MODE={0x5, 0x14, 0x20}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'ip6tnl0\x00'}, @L2TP_ATTR_PEER_SESSION_ID={0x8, 0xc, 0x3}]}, 0x68}, 0x1, 0x0, 0x0, 0x5605dbc264ceb9d1}, 0x80) (async) 20:10:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x7c, 0x0, 0x20, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x24f}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0xc, 0xa, '(!-(#}\\^'}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x8804}, 0x440c4) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01000000ecffd7f1cc016b140000040007800c0002000000001000000000"], 0x24}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) 20:10:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x90, 0x0, 0x0, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xf6c}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x236cc}]}, 0x90}, 0x1, 0x0, 0x0, 0x21}, 0x800) 20:10:08 executing program 5: syz_genetlink_get_family_id$nl80211(&(0x7f00000003c0), 0xffffffffffffffff) r0 = syz_init_net_socket$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$NLBL_MGMT_C_ADD(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x90291041}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x6c, 0x0, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x6c}}, 0x40040) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYRESOCT=0x0, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x20, r4, 0x200, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x24048000}, 0x20000001) 20:10:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB="9e2bd5de72c355a4805fbad722ccdbf034000000de2421c478168d34da2a7c9b058c8e8f68ca5f07ce042a974739bc401d846d813a5ff5f02b5755a9f5682e860a00d06fc7dfbbd39cb19f9acbaff96441979be62f58e0e86ee04981d305cb8ec4247c49666ae0001ce8f8d01f398c773d9f060e3c54440fb1fec750488737386cf8faa81c86f574e84ff1d5a556e085fa6d24bad0d1e5ff82f5", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:08 executing program 0: syz_genetlink_get_family_id$nl80211(&(0x7f00000003c0), 0xffffffffffffffff) 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_ADD(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x90291041}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x6c, 0x0, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x6c}}, 0x40040) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYRESOCT=0x0, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x20, r4, 0x200, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x24048000}, 0x20000001) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="268003e6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x90, 0x0, 0x0, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xf6c}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x236cc}]}, 0x90}, 0x1, 0x0, 0x0, 0x21}, 0x800) 20:10:08 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$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x7c, 0x0, 0x20, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x24f}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0xc, 0xa, '(!-(#}\\^'}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x40}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x7c}, 0x1, 0x0, 0x0, 0x8804}, 0x440c4) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="01000000ecffd7f1cc016b140000040007800c0002000000001000000000"], 0x24}}, 0x0) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (rerun: 64) 20:10:08 executing program 5: syz_genetlink_get_family_id$nl80211(&(0x7f00000003c0), 0xffffffffffffffff) r0 = syz_init_net_socket$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$NLBL_MGMT_C_ADD(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x90291041}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x6c, 0x0, 0x100, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0={0xfc, 0x0, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private0}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private2}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}]}, 0x6c}}, 0x40040) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYRESOCT=0x0, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x20, r4, 0x200, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x20}, 0x1, 0x0, 0x0, 0x24048000}, 0x20000001) 20:10:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB="9e2bd5de72c355a4805fbad722ccdbf034000000de2421c478168d34da2a7c9b058c8e8f68ca5f07ce042a974739bc401d846d813a5ff5f02b5755a9f5682e860a00d06fc7dfbbd39cb19f9acbaff96441979be62f58e0e86ee04981d305cb8ec4247c49666ae0001ce8f8d01f398c773d9f060e3c54440fb1fec750488737386cf8faa81c86f574e84ff1d5a556e085fa6d24bad0d1e5ff82f5", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:08 executing program 0: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x70, 0x0, 0x100, 0x70bd28, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x70}, 0x1, 0x0, 0x0, 0x20040010}, 0xa095) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="09000003", @ANYRES16=r3, @ANYBLOB="0100000000000000000001001300040007800c00000000"], 0x24}}, 0x0) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="268003e6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x90, 0x0, 0x0, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xf6c}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7fffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x236cc}]}, 0x90}, 0x1, 0x0, 0x0, 0x21}, 0x800) 20:10:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB="9e2bd5de72c355a4805fbad722ccdbf034000000de2421c478168d34da2a7c9b058c8e8f68ca5f07ce042a974739bc401d846d813a5ff5f02b5755a9f5682e860a00d06fc7dfbbd39cb19f9acbaff96441979be62f58e0e86ee04981d305cb8ec4247c49666ae0001ce8f8d01f398c773d9f060e3c54440fb1fec750488737386cf8faa81c86f574e84ff1d5a556e085fa6d24bad0d1e5ff82f5", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="268003e6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="268003e6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:08 executing program 4: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="0130f899af893bfb818782b4d611cbeb715b9bac20c85b3892cc25c736ce5e58863f22ad00ff00020000006ab2f9904a9f00001c00000000000000e7578e670c860800"], 0x24}}, 0x0) 20:10:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:08 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$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000002c0), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000240)={0x60, r5, 0x100, 0x70bd2d, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @broadcast}}]}, 0x60}, 0x1, 0x0, 0x0, 0x4040810}, 0x40) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r8, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r6, &(0x7f0000000500)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000004c0)={&(0x7f0000000440)={0x44, r8, 0x300, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x64010102}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @initdev={0xac, 0x1e, 0x0, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}]}, 0x44}, 0x1, 0x0, 0x0, 0x40844}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000340)=ANY=[@ANYBLOB="34000000551888072b2c37475d32c2e42bc92f7712cf84f8822ca2fbbf34962021a0b27bd684c4e9c44d55563070700ebe905c008058e7f3c0202cf8553c39b6cb40", @ANYRES16=r2, @ANYBLOB="0100ffbd700002000000030000000c00050001050280000000000c00030009000000000000003a52577d59da52467308000100200000000000000039b611f37063108121dcd8aae8c4453eb87ad1e9e1e28c98d2414038ca310544072803c170b63573abc9c39eb74d4cec8cca2d9b5c26aca34d6478713e4bd91ab97d160e55cdd0cfc667068f8978b1fb1cbe77d05a02fe79"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) 20:10:08 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000008010000000010000000400"/30], 0x24}, 0x1, 0x0, 0x0, 0x4c010}, 0x0) 20:10:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="0700e80d", @ANYRES16=r2, @ANYBLOB="6f0825bd000300091a00000000cbadbd8df4fc4892bf"], 0x34}}, 0x0) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$media(&(0x7f0000000000), 0x5, 0x4002) ioctl$MEDIA_IOC_G_TOPOLOGY(r1, 0xc0487c04, &(0x7f0000000740)={0x0, 0x7, 0x0, &(0x7f0000000340)=[{}, {}, {}, {}, {}, {}, {}], 0x4, 0x0, &(0x7f0000000040)=[{}, {}, {}, {}], 0x5, 0x0, &(0x7f0000000600)=[{}, {}, {}, {}, {}], 0x3, 0x0, &(0x7f00000006c0)=[{}, {}, {}]}) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:08 executing program 4: 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$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="0130f899af893bfb818782b4d611cbeb715b9bac20c85b3892cc25c736ce5e58863f22ad00ff00020000006ab2f9904a9f00001c00000000000000e7578e670c860800"], 0x24}}, 0x0) [ 2172.161662] nbd: couldn't find a device at index 0 20:10:08 executing program 5: 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$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:08 executing program 0: r0 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000380), 0x2, 0x0) write$FUSE_INIT(r0, &(0x7f00000003c0)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8, 0x0, 0x8, 0x7, 0x2, 0x8439}}, 0x50) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x2, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xcc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x34}, 0x1, 0x0, 0x0, 0x800}, 0x0) ioctl$MEDIA_IOC_REQUEST_ALLOC(0xffffffffffffffff, 0x80047c05, &(0x7f0000000580)) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000200)={&(0x7f00000005c0)=ANY=[@ANYBLOB="2100000104000000000000b84d4441a5cd255c4ed10b7961ad9c10710344bc394dc95d17128d946ef121f7c5bb055613138350fd36fb4e551a21f1ddae7d0bf76d119f994dbd9477b4eb3f28849e", @ANYRES16=0x0, @ANYBLOB="00022dbd7000ffdbdf2504000000060003000300000006000e00020000000500220000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x40840}, 0x4000) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000040)=ANY=[@ANYRES32=r4, @ANYRES16, @ANYRESOCT=r4], 0x1c}, 0x1, 0x0, 0x0, 0x20048014}, 0x18) r6 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r6, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_DEL_TX_TS(r7, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r8, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) sendmsg$NL80211_CMD_DEL_TX_TS(r6, &(0x7f0000000540)={&(0x7f0000000440)={0x10, 0x0, 0x0, 0x2021801}, 0xc, &(0x7f0000000500)={&(0x7f0000000480)={0x54, r8, 0x800, 0x70bd2c, 0x25dfdbff, {{}, {@void, @val={0xc, 0x99, {0x0, 0x6e}}}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xa}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x9}, @NL80211_ATTR_TSID={0x5, 0xd2, 0x4}, @NL80211_ATTR_TSID={0x5, 0xd2, 0xf}, @NL80211_ATTR_TSID={0x5}]}, 0x54}, 0x1, 0x0, 0x0, 0x44}, 0x20000004) 20:10:08 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_open_dev$media(&(0x7f0000000000), 0x5, 0x4002) ioctl$MEDIA_IOC_G_TOPOLOGY(r1, 0xc0487c04, &(0x7f0000000740)={0x0, 0x7, 0x0, &(0x7f0000000340)=[{}, {}, {}, {}, {}, {}, {}], 0x4, 0x0, &(0x7f0000000040)=[{}, {}, {}, {}], 0x5, 0x0, &(0x7f0000000600)=[{}, {}, {}, {}, {}], 0x3, 0x0, &(0x7f00000006c0)=[{}, {}, {}]}) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:08 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000008010000000010000000400"/30], 0x24}, 0x1, 0x0, 0x0, 0x4c010}, 0x0) [ 2172.218129] nbd: must specify at least one socket 20:10:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="0700e80d", @ANYRES16=r2, @ANYBLOB="6f0825bd000300091a00000000cbadbd8df4fc4892bf"], 0x34}}, 0x0) 20:10:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 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$nbd(&(0x7f0000000140), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) [ 2172.266625] nbd: couldn't find a device at index 0 20:10:09 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$media(&(0x7f0000000000), 0x5, 0x4002) ioctl$MEDIA_IOC_G_TOPOLOGY(r1, 0xc0487c04, &(0x7f0000000740)={0x0, 0x7, 0x0, &(0x7f0000000340)=[{}, {}, {}, {}, {}, {}, {}], 0x4, 0x0, &(0x7f0000000040)=[{}, {}, {}, {}], 0x5, 0x0, &(0x7f0000000600)=[{}, {}, {}, {}, {}], 0x3, 0x0, &(0x7f00000006c0)=[{}, {}, {}]}) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:09 executing program 4: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="0130f899af893bfb818782b4d611cbeb715b9bac20c85b3892cc25c736ce5e58863f22ad00ff00020000006ab2f9904a9f00001c00000000000000e7578e670c860800"], 0x24}}, 0x0) syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="0130f899af893bfb818782b4d611cbeb715b9bac20c85b3892cc25c736ce5e58863f22ad00ff00020000006ab2f9904a9f00001c00000000000000e7578e670c860800"], 0x24}}, 0x0) (async) 20:10:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="0700e80d", @ANYRES16=r2, @ANYBLOB="6f0825bd000300091a00000000cbadbd8df4fc4892bf"], 0x34}}, 0x0) 20:10:09 executing program 2: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000008010000000010000000400"/30], 0x24}, 0x1, 0x0, 0x0, 0x4c010}, 0x0) 20:10:09 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000008010000000010000000400"/30], 0x24}, 0x1, 0x0, 0x0, 0x4c010}, 0x0) [ 2172.335609] nbd: must specify at least one socket [ 2172.374539] nbd: couldn't find a device at index 0 20:10:09 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="350000407563d67dcf624735bfafe02254", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:09 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) ioctl$sock_bt_hci(0xffffffffffffffff, 0x800448d7, &(0x7f0000000480)="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") 20:10:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x1, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x1}, 0x20000004) 20:10:09 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$media(&(0x7f0000000000), 0x5, 0x4002) ioctl$MEDIA_IOC_G_TOPOLOGY(r1, 0xc0487c04, &(0x7f0000000740)={0x0, 0x7, 0x0, &(0x7f0000000340)=[{}, {}, {}, {}, {}, {}, {}], 0x4, 0x0, &(0x7f0000000040)=[{}, {}, {}, {}], 0x5, 0x0, &(0x7f0000000600)=[{}, {}, {}, {}, {}], 0x3, 0x0, &(0x7f00000006c0)=[{}, {}, {}]}) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:09 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="30809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc81420}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7058f24380250700000008004c000000080009000300000008001700", @ANYRES32, @ANYBLOB="08000c0004000000050006000100000006001b004e2200000500140034000000"], 0x4c}, 0x1, 0x0, 0x0, 0x11}, 0x6008040) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x68, 0x0, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@L2TP_ATTR_FD={0x8, 0x17, @udp6}, @L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_CONN_ID={0x8}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'geneve1\x00'}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xfffc}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x800000}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @empty}]}, 0x68}}, 0x20000) [ 2172.399602] nbd: couldn't find a device at index 0 [ 2172.417590] nbd: must specify at least one socket 20:10:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x5c, 0x0, 0x4, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x5c}, 0x1, 0x0, 0x0, 0x810}, 0x4000000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:09 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="350000407563d67dcf624735bfafe02254", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="350000407563d67dcf624735bfafe02254", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) 20:10:09 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) ioctl$sock_bt_hci(0xffffffffffffffff, 0x800448d7, &(0x7f0000000480)="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") 20:10:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x1, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x1}, 0x20000004) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x1, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x1}, 0x20000004) (async) 20:10:09 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="30809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc81420}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7058f24380250700000008004c000000080009000300000008001700", @ANYRES32, @ANYBLOB="08000c0004000000050006000100000006001b004e2200000500140034000000"], 0x4c}, 0x1, 0x0, 0x0, 0x11}, 0x6008040) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x68, 0x0, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@L2TP_ATTR_FD={0x8, 0x17, @udp6}, @L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_CONN_ID={0x8}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'geneve1\x00'}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xfffc}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x800000}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @empty}]}, 0x68}}, 0x20000) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="30809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc81420}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7058f24380250700000008004c000000080009000300000008001700", @ANYRES32, @ANYBLOB="08000c0004000000050006000100000006001b004e2200000500140034000000"], 0x4c}, 0x1, 0x0, 0x0, 0x11}, 0x6008040) (async) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x68, 0x0, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@L2TP_ATTR_FD={0x8, 0x17, @udp6}, @L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_CONN_ID={0x8}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'geneve1\x00'}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xfffc}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x800000}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @empty}]}, 0x68}}, 0x20000) (async) 20:10:09 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_dev$media(&(0x7f0000000000), 0x5, 0x4002) ioctl$MEDIA_IOC_G_TOPOLOGY(r1, 0xc0487c04, &(0x7f0000000740)={0x0, 0x7, 0x0, &(0x7f0000000340)=[{}, {}, {}, {}, {}, {}, {}], 0x4, 0x0, &(0x7f0000000040)=[{}, {}, {}, {}], 0x5, 0x0, &(0x7f0000000600)=[{}, {}, {}, {}, {}], 0x3, 0x0, &(0x7f00000006c0)=[{}, {}, {}]}) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) [ 2172.517087] nbd: must specify an index to disconnect 20:10:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="350000407563d67dcf624735bfafe02254", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x5c, 0x0, 0x4, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x5c}, 0x1, 0x0, 0x0, 0x810}, 0x4000000) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:09 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB, @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) ioctl$sock_bt_hci(0xffffffffffffffff, 0x800448d7, &(0x7f0000000480)="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") 20:10:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB], 0x24}}, 0x0) 20:10:09 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(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:09 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="30809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc81420}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7058f24380250700000008004c000000080009000300000008001700", @ANYRES32, @ANYBLOB="08000c0004000000050006000100000006001b004e2200000500140034000000"], 0x4c}, 0x1, 0x0, 0x0, 0x11}, 0x6008040) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x68, 0x0, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@L2TP_ATTR_FD={0x8, 0x17, @udp6}, @L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_CONN_ID={0x8}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'geneve1\x00'}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xfffc}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x800000}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @empty}]}, 0x68}}, 0x20000) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="30809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xc81420}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7058f24380250700000008004c000000080009000300000008001700", @ANYRES32, @ANYBLOB="08000c0004000000050006000100000006001b004e2200000500140034000000"], 0x4c}, 0x1, 0x0, 0x0, 0x11}, 0x6008040) (async) sendmsg$L2TP_CMD_SESSION_GET(r0, &(0x7f0000000340)={&(0x7f0000000140)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x68, 0x0, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@L2TP_ATTR_FD={0x8, 0x17, @udp6}, @L2TP_ATTR_L2SPEC_TYPE={0x5}, @L2TP_ATTR_CONN_ID={0x8}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'geneve1\x00'}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0xfffc}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x800000}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @empty}]}, 0x68}}, 0x20000) (async) [ 2172.623436] nbd: must specify an index to disconnect 20:10:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x1, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x1}, 0x20000004) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r2, 0x1, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x34}, 0x1, 0x0, 0x0, 0x1}, 0x20000004) (async) 20:10:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x5c, 0x0, 0x4, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfff}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x5c}, 0x1, 0x0, 0x0, 0x810}, 0x4000000) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:09 executing program 5: r0 = add_key$keyring(&(0x7f0000000000), &(0x7f0000000040)={'syz', 0x0}, 0x0, 0x0, 0xfffffffffffffff9) keyctl$negate(0xd, 0x0, 0x10001, r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x50, r3, 0x200, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x800}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x16f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe82}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x50}}, 0x1) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)=ANY=[@ANYBLOB="ff0f0000", @ANYRES16=r3, @ANYBLOB="000026bd7000ffdbdf25020000000c000800b8070000000000002400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB], 0x44}, 0x1, 0x0, 0x0, 0x20004040}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:09 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$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="7efdffff", @ANYRES16=r1, @ANYBLOB="0100000000083df93494bdbd2c51"], 0x24}, 0x1, 0x0, 0x0, 0x4008041}, 0x0) 20:10:09 executing program 1: add_key(&(0x7f0000000000)='ceph\x00', &(0x7f0000000040)={'syz', 0x2}, &(0x7f0000000340)="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", 0x1000, 0xfffffffffffffffb) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$NL80211_CMD_UNEXPECTED_FRAME(r0, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x28, 0x0, 0x608, 0x70bd29, 0x25dfdbfe, {{}, {@val={0x8}, @val={0xc, 0x99, {0x0, 0x35}}}}, ["", "", ""]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) 20:10:09 executing program 1: add_key(&(0x7f0000000000)='ceph\x00', &(0x7f0000000040)={'syz', 0x2}, &(0x7f0000000340)="781aa70459314fa95dcd6677e1da6d7df263a667108c627e209cb457c337b20fa0ae58e7e844cf92b8a8a5be8bdd8d744f3a9f94267267b1a28cfbf5f2954a65d0dd7b473d8896b8675c84e1185e0b96b88acc197c772e03a1fbf3ab64b58507a0bf621500b707e5653b17e716fab2d7ae2866d821265b898afe7323b445ae66318a73a7897e876e5052e91d8d3c1d9b814c0960e73f56a43fb069ed8843c092587b845714dfd7f2ab71ef6053ae8694102169380aff46910c66fef12f610e60cf7fac77c051d2442da78416893064bbcccfca4c450ebe602dadcf1e3f3b9851a60724ff155c0b3031faa4e68d4005b3e2ddcace6011405de987e6e536dc435fa0b54b0e420cc44f9ad9b96c853f320559a01a8524d882bd1cad1f761f857ec6c99d1ad016e28a3cc85c66a03a97f9660ab8fb549d036f8f98889bd97880fe9ce3191721a749ea9c3a48171290e22080c2b4a298a0f2408f7f753fe6b60383a1cd767f7a02c99ddaa2b2861a48000499c642d6e098d3d4f4e3febe91865ec33dc8efe977ecffd497f9c1905ac902993c734a3076dd03ff81c059e863a278e1168b3b251f9c0532fe26385a770fdb06d9adf943989e8bc72e059c0715924d0abfd7fab62fae6cb396c09491d858eda99e2c7dcc90c24df6c8d50860fe7e213ed2331481decc2062d5edb53bd23448df3fb8da05af74efb93d5280dd48db551978f727ae1d8d207fb8be507ea604a0c35511b58b27dd27993d313242c9f881fbf6b6768d9ba44747183b974ad81719217e1646a7d0d04a98c4d86076510aa30b30f0d7fa7b6bd271cf9fd99a2fe34df0a28204ae207bf7af6dc2b0ba8c6e3672999b6ab9fbc9ef9b9e5de5ed21c12480760573de8f076447be7656094952fa10a4471f2abe2568658c9d88bc496f13d2137867840fea54b07723f4b683ef13686919ef926eff73bc66de453a01c1ae0e99a15855a197ca09d4f91ae4bf2d94e3a7980f0f444fa6712c691d841e104524b9e83dd3d75509f53e9433b8461d0654da29a024550f49bb461bbe25ee3a9cbdc01e3c75691e23c4a28557a2c316f5db37ba3d321a8e4be165af41e131f662e9299a6160b81cd3b18b1fbd42ae08130193d5be2d4c79af6bc7e4b649ccfa5d3cc7c681c2d2aa62a775c60bb58914af6bc7853b46bd2ddb7acabe7d4704910f57ee0dbba55a8dac2f5b5685bfd10b27ac9058ce12f12c3f474a477b1d40cba13bcb39b5f0ddd34cacb84b7c5c0ca63feb49141f44f57291a00f1adcf744e04b601a5d4273c7c295f7fd15396235ca6db0b52c8f892b58d4f0ebbf3b0747660f942a1dbb8732603f033cdc1d2bf104454fdc1020d3576a34a5ab8680342dc0312da9ea6ff0a817239a552b28af0a7cd483eda8d1b5c0d72aa0efff258d8148b642c825591702590ecb7c9f0322c7671cb349fb435c116f5121ebdbe0ceb29f1dce8831fed5d1a55579e701b757737f0021c02451900e25cf6a711fb0959a9bb1b12d11a14fef9a6f7841cf45b5c8ee392f70db47608ff20d38952a02deead2f3ef24a28aeabaace619cd4b9cc52259ab884e15bcd8337b0c64eeacd42cc471cf7dbe46e4f5f018c67c787d8a4515c1c798f241c65094241b65e84f96557325c8be0290bcf0143f0b567970912e01e8ec7b51f157bedf9a346496d7b0684682ba1032badbb004230842b29b7ac8757dd8a82f95d7b75122fcdd6022c93fec1584bb554fefb0dabcb1f31b0290c98627d0d675c8142e16117db038dde8711e1e4fe7fb542ce09f1487a2c4e3b6a87d95b1205cb7b8c716761575a9c1da04e37576b654a150e5f3dc78251b05c09ffb4782c46698414225771782e30485d567b9a4b909fef729e6181a0dffa5d7f6b3a1f08cdace36f75e3956b59300f433ef64abf94ead50b17fb2b6afbeeccdc6f4dfae2ba961d5a479058e4bc90e2ccdbb8543d523af7575f5072d9783abef8234d77362527d73316fa0838e612fc7564072fe8f5e740498faf7cc902bf4052069239190433dd6791df0bad615f6b895c0103fda890d97b24b8bc98fbb1c9781746d2f4b6800cdccdc446a53892eb8ba9317b9a4e2e585b48b9dcfb529dd7ed6e62c01cecf7593e4226c5dc10df8f9d4aad288ea33b83cdbf0ab087bc671401d3c8cce05148bdd583974047361ffebfd0f8c2adc3d173fea28567a5152c7eccb0929c552c67574a850288124ac9c3aed602d742cafd589ea5a49126cad0bb490513c3c9162dab4b70011b9090c2433593f69e3b8b234e538506d04d2549722bb9a0c17f4f4920a6220d0d4a28b9ebb806512ad365da736a64ace7e754d8065a04dbca604f97440849ac4729fb63441891ee689a074f4cc63cbde18c55da6e48f4579a26f6aa5d4948a073061bb2ed3eff25c12b532ce28912604098721b1bbdbef6b998eef45e6cb2e57f0b73b8f485bf344ebee914cf6bde4a3c1e3d01374ce7c5baface5a8361ad9a603b804c032f2fcaeea035f8b65a8242dc3d6329f26fabd974ddadc8b761c7624109f5276da87a0f79c00c0f03be27c42b6b70fdbc7617be735597115ce900d2534db731c07d8e08de51aa1b6254f64021b9d263c65c1153003eaf5c3049ffbd8f94a4a957cd3aea12337e58fbb53cc88b37dedc2cdb0eef18a40706afcfcae66e3ae942e9c063110c26c964577fd3e99f6f0a84c3eb7c7e8d713cf9fea5b1e6251617ad355cd59f176b002f19d279cb5d271458e2bf42b0f73636faaeb2a9c2293abc552d9d4f4f073f01cbb57544741b7ee4e89f4c8cea188bc160873a197b450d3964d7f77603241bd3e65badbd35bef73632a127d3366a73d6b057e655d68312212976ab4407bea0d21ea413011a5372eac0ae09b158d3e2e4036058398df03d8cdea34e60bfc71d7e8743dc1a83fb3cbbbeaf74ff4d04205018dbc1826e79540e6c8965b78348b173ff7c9592edcda5db8f1f2ed05e15cb48f359a47bcc1c429951f1110939e1b37a2329ff44b0453c0bc8bb3b85f7ca738c3c3e8f5c8d1fb157dd9c0dc3d18cdc857af55255229b8357680faa52ff66289e10bedc826c0bda38ce33a9ee43c1586e9588945a430cefe6c2e63a70a9682d98ab6a99d3955bfde9578e76a5e0fc7259754e23c98a1f5e843e80e74e00ce56783261e77251ce4438d09095ada7cd7e6644daebe70152a9d53fbeecc3407373a317eea55a045faa6a7a4b43063bc071b3237684a43762e8fc9f726af2de3ea55b3f67fcc384207f35c7ffad3f8284371fd68c72c87a266258a89c62352a48b611ccf406b1998f7ef5b0345ea93dfbed452f74ba1bbe7ca66535a9613b727e171c07511a2003194df1deae4ee9befe5bb40f5debf757f98f6c8bc19cfa7e179f7c3184e15195ca3a636961253affc7d6728fea564377e880af1453a3bc472723fdd263f624a86042b517d59db331411043f075a51ca425de3e0f2a44fcfe8260a49edf8841d9e7b1994e90112492dce6768460a7526edd3ada16328d55ce84f378f935191a27b508917dfee3f85a3787cadfa245d101b0d8c90cbc0d142b18fa7854fa9cd20c177a470a9c947bdabb7392ccfa6860b72b63f34d299df3fd61f76c51e61056cd722f3e1a2cb1ba0a0d306110a4ac60ef030567d5047c97480e55a79700a5ee0d775fc73090126569361c9c7d7aa13c7080b5b196d8078513a1d29d9d05da90aed09ddfdbe0ed78ea135025c02a62348386041eafd85f97cda1e25f24679769e795766e1fda324cc19b8616c01daf754cc275f902ee50724f2027ff4e416cb4bcdbe6fd287a1b270508ab136a67f6d3f25e4bc1d446b5ebd8fc9a13ada4e17138e6bf302f10338eeea20c83de8e24488715f37a447a2618ef066912b513bd34621025086614066ee29b0a6e6e5b8a3ba5ab0c70a11841e36e82c5a879ac34b1dcebf9a6fca6aa50d583779ff0e944efdefc0e4d2d451d4dd408542f0d66ddfdcca514cb81c3df7ee07fcb7cba75af9a762c065dcf017ac278608562d2f826fe3f234bd6087ab22454c6649a7282f7a740a75c9f861d6362d8dce9347b12d4b58c2aeb200cd9ee43458555060411aa11f387cd2d4246e3cba78f6e9f8dbcede65502bbdc1e4d17e22bf4b1b8eb9720119059ee2efa721f6c9577ad531ac6df38f4cbb8263d51978e7e2c654773f86d2b2163312c9699b58da51c14a264849809fd40501a70133074ea24b0a971999c496ac8434b01cc0aa1a67e1e3e18cfdfba02c1796ceb69b525e0c578e8fd0b57351cf2cf396c09c04d860698dcc2647032abf86024564edb73347ec6b61e2ec8d8d7bb19f8c141a398d34628167f793b2ed780854ced4e69a01aba8ee88fb4c93ccaf78f2afe1f299e03d3f8c4a1c39fd75f7ecd844cb2f9c4f9f02b651528c938bf07ec4892158edd3d5f3ec9851f54f3cecaee673c2a994e1e5c7fb62ee3838bd0e02e38599addebb54ce1a6ec2478779412c5e759f3f0fdd8e7f08f443a2dccf96a6a80e09ad45ff071ac58b991852d98e0212ecf1cd788a2b2042addbbf34fc9aa7d5f0e34e6ab3040b9f24d4e890bfbcf331d1d84129fa10541e4ccc6c91b8ff15efff2dfbafe16dc83d50108f373eee12663254418cc4d3c94ee4bb8352c8c78ba8c4b3bdbf44608c4c72a59c0140103fff7b37730c5463129f344c9487290e7ba446b0c3aa47fde82745b0f9001cf96eb4918f4c0823aefda0694a3c1c234cb0ad9c7036758b683cd33fc3ce93b5cf00fe54ef47e0c390e4267103bff45825bef6eac8e966847bfa8950159daa614a8aee8ef4c666450b4ef2fa2d9ff33ffcd181bbc49686d56727b8d1d0cd14030e5abaffc2919ce6b70c99c2c9bceee939a7084e8d4b6695e5e5ad3776b285ce0354062fb92bf2916651c2eebb148d5d4e58fb73c227fb0559bf68f3da2717f6aa4da7a38fc883c308546be13f7608c83b8fc7564015fba2f0f94dfa1babd2e1e4bcd7d4d0ab1e6f2d8857f7c211a83dddd0010d534a0be43ea8fafa51ae129f844aee7dde2ca4a20ab5038cf9774f177423096816904d5e16ae38e87dcd335b2e1022a679b7124c92077f40df758faca12d1ed1523a66700591de2c6745dc493be27e6438c39482e3f6cca4f5362063e1c396bff1f420412c1eb14cb907e9b3df27035bd7801cad71e75c6c3da22a2513e91702a82d549ba88db6ea8ee08c6c48519f56a15f98327d55afb31d639ac47b010a9bf15c71da254457b5fcc631e5d512ecd37e2a9b06989b37ffc4093e764dc7dd2788a6ffc78552ea13e30b50790c35ccbd1c5709e1cd5422562b12e426f88ed341516d83d89123c32d28c6ef4af59a0566954ff28a22f9ed909cf77a69888ccae08216aa2689f314f00f15eb373fefbcf2dbcbd536048056d6ba85aaad46593bd2cc49dfa9adaad9d87589370b0aa5f5e1a9408a5db234fa05550e8533711e0f4fa129997f14d05890d016b37ebe07607312defe393a53759aafba0da3d5e3a73222f807f50e2f697140f67731a2e13ece32fe488353cb52fee14030f82f836eb41e81c71995992c0d653ebe2393c77aa74eb151029849f60026ab03d91cf5ed108c17ea006f50947381b0196ac57a56fae3d21f01be4cb65a75f01f56a4ccfcb5bde4ae160122ec4c9c6e6b88003b55d2eeeeec0b16784d17b3d74a4c4b8ef09054a32c70088525f2244015f381b38e95d2ed533be42be68cea17af29f1fde892b2fce5d86fcf30644322c67dbd8fbc830c75a810774be1cf049d733a903a627f1ad7d12ef66c7430", 0x1000, 0xfffffffffffffffb) (async) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async, rerun: 64) sendmsg$NL80211_CMD_UNEXPECTED_FRAME(r0, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x28, 0x0, 0x608, 0x70bd29, 0x25dfdbfe, {{}, {@val={0x8}, @val={0xc, 0x99, {0x0, 0x35}}}}, ["", "", ""]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) (rerun: 64) 20:10:09 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x20, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2172.759093] nbd: couldn't find a device at index 32 [ 2172.779269] nbd: must specify an index to disconnect 20:10:09 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="bd2d45ddee0c4601fc96e6f3811443264841e5a80599ff2ede67d61e4499423d57ed13426832ead766c933b5bc726a3de78625495181d508605a5d597b18c9e7f6bb184064e1cd04a054abb7fa1c4c224f742e141a8a5267e7d38d23d891bf8b4791f5e78694b7609ec94a6cea90ffccb88808", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:09 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:09 executing program 5: r0 = add_key$keyring(&(0x7f0000000000), &(0x7f0000000040)={'syz', 0x0}, 0x0, 0x0, 0xfffffffffffffff9) keyctl$negate(0xd, 0x0, 0x10001, r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) (async) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x50, r3, 0x200, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x800}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x16f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe82}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x50}}, 0x1) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)=ANY=[@ANYBLOB="ff0f0000", @ANYRES16=r3, @ANYBLOB="000026bd7000ffdbdf25020000000c000800b8070000000000002400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB], 0x44}, 0x1, 0x0, 0x0, 0x20004040}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2172.813887] nbd: couldn't find a device at index 0 20:10:09 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x20, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:09 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$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40040}, 0x80) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="d148f7f05d0fff94805416b3a66efe260e3408b9893d1f9c0d5c36c9fe88e2cceea37c11adce09c7ba51af157edd8adcefe7990897b2a36438645e8e2b01fe08cdd03c598ea20741eb86fd42c83a0ffc5dce6758088c6c2a325f3f976c026d59b68b7245fef7be36620b947a7786ddffffffff43ba39c526710686fbfcd6857d1b4e68e1077bd7171f687e06e972c47673e22376a1ee74e83b1b9b809f9572681be9e0575e698f907d96ebd74a411b2cc9f818757184c812f2bd5747ad67b7faca49c22d215503e07084b1e274cfab53e030f1d125ca86654d6a87", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:09 executing program 1: add_key(&(0x7f0000000000)='ceph\x00', &(0x7f0000000040)={'syz', 0x2}, &(0x7f0000000340)="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", 0x1000, 0xfffffffffffffffb) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) sendmsg$NL80211_CMD_UNEXPECTED_FRAME(r0, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x28, 0x0, 0x608, 0x70bd29, 0x25dfdbfe, {{}, {@val={0x8}, @val={0xc, 0x99, {0x0, 0x35}}}}, ["", "", ""]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) add_key(&(0x7f0000000000)='ceph\x00', &(0x7f0000000040)={'syz', 0x2}, &(0x7f0000000340)="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", 0x1000, 0xfffffffffffffffb) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) sendmsg$NL80211_CMD_UNEXPECTED_FRAME(r0, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x28, 0x0, 0x608, 0x70bd29, 0x25dfdbfe, {{}, {@val={0x8}, @val={0xc, 0x99, {0x0, 0x35}}}}, ["", "", ""]}, 0x28}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) (async) 20:10:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2172.921701] nbd: couldn't find a device at index 0 20:10:09 executing program 5: r0 = add_key$keyring(&(0x7f0000000000), &(0x7f0000000040)={'syz', 0x0}, 0x0, 0x0, 0xfffffffffffffff9) keyctl$negate(0xd, 0x0, 0x10001, 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$nbd(&(0x7f0000000140), r1) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000240)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x50, r3, 0x200, 0x70bd25, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x800}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x16f}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xe82}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}]}, 0x50}}, 0x1) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)=ANY=[@ANYBLOB="ff0f0000", @ANYRES16=r3, @ANYBLOB="000026bd7000ffdbdf25020000000c000800b8070000000000002400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB], 0x44}, 0x1, 0x0, 0x0, 0x20004040}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:09 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x20, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:09 executing program 0: r0 = syz_init_net_socket$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) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, 0x0, 0x100, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40040}, 0x80) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="d148f7f05d0fff94805416b3a66efe260e3408b9893d1f9c0d5c36c9fe88e2cceea37c11adce09c7ba51af157edd8adcefe7990897b2a36438645e8e2b01fe08cdd03c598ea20741eb86fd42c83a0ffc5dce6758088c6c2a325f3f976c026d59b68b7245fef7be36620b947a7786ddffffffff43ba39c526710686fbfcd6857d1b4e68e1077bd7171f687e06e972c47673e22376a1ee74e83b1b9b809f9572681be9e0575e698f907d96ebd74a411b2cc9f818757184c812f2bd5747ad67b7faca49c22d215503e07084b1e274cfab53e030f1d125ca86654d6a87", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:09 executing program 1: r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0x101002, 0x0) ioctl$BLKGETSIZE64(r0, 0x80081272, &(0x7f0000000040)) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = socket$packet(0x11, 0x2, 0x300) getsockname$packet(r2, 0x0, &(0x7f0000000080)=0x33) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000074d05fc213a10008982f8be"], 0x14}}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESDEC=r3, @ANYBLOB="5c3948ee03144b2070996f621fa4fe7ea827d335da9220fd5d8e2aefc6937e72183efe0042899598cc63dbf74043e16c827cc9b649890f6b179f1de263828b262176bebc906089b89f5347e4a7de89d9598f008799daefa138e4fd8557ef899d56e7d7db04000000000000008f4e7886195375d0e0c8ea3f962559fe8b66961d6595", @ANYRESHEX=r1, @ANYRESHEX=r1, @ANYRES64=r3, @ANYRES32=r1, @ANYRESOCT=r1], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="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"], 0x34}}, 0x0) 20:10:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000400a4e8a6b1a8d44509316f66bf7cca73f6bdd466069dfb659379758d85e3a202ed35ca43127a05572cc92e9823f117d3ab80db240"], 0x24}}, 0x0) 20:10:09 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$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000000)={0x7fffffff, "2aaf7f07766624a7caf05cad60a4837f6c992702debfa2406b8c2b862da6a078"}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r1) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x20, r5, 0x4, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x10000}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x4004) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) ioctl$SOUND_MIXER_READ_VOLUME(0xffffffffffffffff, 0x80044d10, &(0x7f00000001c0)) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x14, r3, 0x200, 0x70bd27, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x8040}, 0x814) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000003c0), r1) 20:10:09 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB="07842c00004b0000000a7dd1b7f892e79f7a918e2a3c80fd7244d6e56ace95cdd382defb1972511d6ecacf311544d67b04d532a0483ebc4b3f788a4be63dde8590671d259aa9169b7c37fec3b59f8e5fc375a28114c45adfc652f0ac5912e445495708fd1a3d1eab5401a58e3333200000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c000300090000000000000008000155b2982361cb0f63107ded3328d4a116bc93b9a6f15db12e90ae790ab363a74f01710f26cf662a18729b924c019f20"], 0x34}}, 0x0) openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000000), 0x101080, 0x0) openat$audio(0xffffffffffffff9c, &(0x7f0000000040), 0x280c40, 0x0) [ 2173.077633] nbd: couldn't find a device at index 32 20:10:09 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) openat$sw_sync(0xffffffffffffff9c, &(0x7f0000000000), 0x400000, 0x0) 20:10:09 executing program 5: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="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"], 0x34}}, 0x0) 20:10:09 executing program 1: r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0x101002, 0x0) ioctl$BLKGETSIZE64(r0, 0x80081272, &(0x7f0000000040)) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = socket$packet(0x11, 0x2, 0x300) getsockname$packet(r2, 0x0, &(0x7f0000000080)=0x33) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000074d05fc213a10008982f8be"], 0x14}}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESDEC=r3, @ANYBLOB="5c3948ee03144b2070996f621fa4fe7ea827d335da9220fd5d8e2aefc6937e72183efe0042899598cc63dbf74043e16c827cc9b649890f6b179f1de263828b262176bebc906089b89f5347e4a7de89d9598f008799daefa138e4fd8557ef899d56e7d7db04000000000000008f4e7886195375d0e0c8ea3f962559fe8b66961d6595", @ANYRESHEX=r1, @ANYRESHEX=r1, @ANYRES64=r3, @ANYRES32=r1, @ANYRESOCT=r1], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:09 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000400a4e8a6b1a8d44509316f66bf7cca73f6bdd466069dfb659379758d85e3a202ed35ca43127a05572cc92e9823f117d3ab80db240"], 0x24}}, 0x0) 20:10:09 executing program 0: r0 = socket$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$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='schedstat\x00') pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x78, r3, 0x100, 0x40, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '*'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x4085}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYRES8=r1, @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) openat$sw_sync(0xffffffffffffff9c, &(0x7f0000000000), 0x400000, 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$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) openat$sw_sync(0xffffffffffffff9c, &(0x7f0000000000), 0x400000, 0x0) (async) 20:10:09 executing program 3: r0 = syz_init_net_socket$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) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) (async) ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000000)={0x7fffffff, "2aaf7f07766624a7caf05cad60a4837f6c992702debfa2406b8c2b862da6a078"}) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r1) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r4) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x20, r5, 0x4, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x10000}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x4004) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) (async) ioctl$SOUND_MIXER_READ_VOLUME(0xffffffffffffffff, 0x80044d10, &(0x7f00000001c0)) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x14, r3, 0x200, 0x70bd27, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x8040}, 0x814) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000003c0), r1) [ 2173.201065] nbd: couldn't find a device at index 32 20:10:09 executing program 5: r0 = syz_init_net_socket$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) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="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"], 0x34}}, 0x0) 20:10:10 executing program 1: r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0x101002, 0x0) ioctl$BLKGETSIZE64(r0, 0x80081272, &(0x7f0000000040)) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = socket$packet(0x11, 0x2, 0x300) getsockname$packet(r2, 0x0, &(0x7f0000000080)=0x33) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000074d05fc213a10008982f8be"], 0x14}}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESDEC=r3, @ANYBLOB="5c3948ee03144b2070996f621fa4fe7ea827d335da9220fd5d8e2aefc6937e72183efe0042899598cc63dbf74043e16c827cc9b649890f6b179f1de263828b262176bebc906089b89f5347e4a7de89d9598f008799daefa138e4fd8557ef899d56e7d7db04000000000000008f4e7886195375d0e0c8ea3f962559fe8b66961d6595", @ANYRESHEX=r1, @ANYRESHEX=r1, @ANYRES64=r3, @ANYRES32=r1, @ANYRESOCT=r1], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:10 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000400a4e8a6b1a8d44509316f66bf7cca73f6bdd466069dfb659379758d85e3a202ed35ca43127a05572cc92e9823f117d3ab80db240"], 0x24}}, 0x0) 20:10:10 executing program 0: r0 = socket$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$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='schedstat\x00') pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x78, r3, 0x100, 0x40, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '*'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x4085}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYRES8=r1, @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) openat$sw_sync(0xffffffffffffff9c, &(0x7f0000000000), 0x400000, 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$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) openat$sw_sync(0xffffffffffffff9c, &(0x7f0000000000), 0x400000, 0x0) (async) 20:10:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) (async, rerun: 32) ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000000)={0x7fffffff, "2aaf7f07766624a7caf05cad60a4837f6c992702debfa2406b8c2b862da6a078"}) (async, rerun: 32) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r1) (async, rerun: 32) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r4) (rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x20, r5, 0x4, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x10000}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x4004) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) (async) ioctl$SOUND_MIXER_READ_VOLUME(0xffffffffffffffff, 0x80044d10, &(0x7f00000001c0)) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x14, r3, 0x200, 0x70bd27, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x8040}, 0x814) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f00000003c0), r1) 20:10:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, 0x0, 0x20, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x2f}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40}, 0x40851) r2 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r2, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2173.321005] nbd: couldn't find a device at index 32 20:10:10 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) r3 = socket$inet6_udplite(0xa, 0x2, 0x88) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000140)={&(0x7f0000000080), 0xc, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB="24009496", @ANYRES16=r2, @ANYBLOB="00012cbd7000fbdbdf250700000008001700", @ANYRES32=r3, @ANYBLOB="08000b0002000000"], 0x24}, 0x1, 0x0, 0x0, 0x48004}, 0x8044) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/l2cap\x00') connect$pptp(r4, &(0x7f0000000040)={0x18, 0x2, {0x3, @remote}}, 0x1e) 20:10:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, 0x0, 0x20, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x2f}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40}, 0x40851) r2 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r2, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, 0x0, 0x20, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x2f}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40}, 0x40851) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r2, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) 20:10:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x20004082) getegid() syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x58, r4, 0x800, 0x70bd29, 0x25dfdbfc, {{}, {@val={0x8}, @val={0xc, 0x99, {0x5, 0x2}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x10}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x79}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x26}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x4e}]}, 0x58}}, 0x4000) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f00000000c0)={0x80000000, &(0x7f0000000080), &(0x7f0000000140)}) 20:10:10 executing program 0: r0 = socket$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$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='schedstat\x00') pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x78, r3, 0x100, 0x40, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '*'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x4085}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYRES8=r1, @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:10 executing program 2: write$FUSE_INIT(0xffffffffffffffff, &(0x7f0000000040)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8001, 0x112600, 0x2501, 0x8, 0x2}}, 0x50) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="a35a077edbffa857ef3c5b24008000", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) [ 2173.448839] nbd: couldn't find a device at index 32 [ 2173.467509] nbd: couldn't find a device at index 32 [ 2173.475979] nbd: couldn't find a device at index 32 [ 2173.485228] nbd: couldn't find a device at index 32 20:10:10 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) (rerun: 64) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) r3 = socket$inet6_udplite(0xa, 0x2, 0x88) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000140)={&(0x7f0000000080), 0xc, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB="24009496", @ANYRES16=r2, @ANYBLOB="00012cbd7000fbdbdf250700000008001700", @ANYRES32=r3, @ANYBLOB="08000b0002000000"], 0x24}, 0x1, 0x0, 0x0, 0x48004}, 0x8044) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/l2cap\x00') connect$pptp(r4, &(0x7f0000000040)={0x18, 0x2, {0x3, @remote}}, 0x1e) 20:10:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, 0x0, 0x20, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x2f}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40}, 0x40851) r2 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r2, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000240)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x2c, 0x0, 0x20, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x2f}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @empty}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x2c}, 0x1, 0x0, 0x0, 0x40}, 0x40851) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r2, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) [ 2173.504848] nbd: couldn't find a device at index 32 [ 2173.519293] nbd: couldn't find a device at index 32 [ 2173.529870] nbd: couldn't find a device at index 32 20:10:10 executing program 2: write$FUSE_INIT(0xffffffffffffffff, &(0x7f0000000040)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8001, 0x112600, 0x2501, 0x8, 0x2}}, 0x50) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="a35a077edbffa857ef3c5b24008000", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:10 executing program 0: socket$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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='schedstat\x00') pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x78, r2, 0x100, 0x40, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '*'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x4085}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r0) 20:10:10 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x20004082) getegid() syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x58, r4, 0x800, 0x70bd29, 0x25dfdbfc, {{}, {@val={0x8}, @val={0xc, 0x99, {0x5, 0x2}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x10}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x79}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x26}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x4e}]}, 0x58}}, 0x4000) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f00000000c0)={0x80000000, &(0x7f0000000080), &(0x7f0000000140)}) 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$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x20004082) (async) getegid() (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) (async) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x58, r4, 0x800, 0x70bd29, 0x25dfdbfc, {{}, {@val={0x8}, @val={0xc, 0x99, {0x5, 0x2}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x10}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x79}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x26}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x4e}]}, 0x58}}, 0x4000) (async) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f00000000c0)={0x80000000, &(0x7f0000000080), &(0x7f0000000140)}) (async) [ 2173.551079] nbd: couldn't find a device at index 32 [ 2173.567063] nbd: couldn't find a device at index 32 [ 2173.587021] nbd: couldn't find a device at index 32 [ 2173.596692] nbd: couldn't find a device at index 32 [ 2173.618443] nbd: couldn't find a device at index 32 [ 2173.637171] nbd: couldn't find a device at index 32 [ 2173.655823] nbd: couldn't find a device at index 32 [ 2173.660944] nbd: couldn't find a device at index 32 [ 2173.671270] nbd: couldn't find a device at index 32 [ 2173.676637] nbd: couldn't find a device at index 32 [ 2173.689692] nbd: couldn't find a device at index 32 [ 2173.694964] nbd: couldn't find a device at index 32 [ 2173.700109] nbd: couldn't find a device at index 32 [ 2173.705763] nbd: couldn't find a device at index 32 [ 2173.710912] nbd: couldn't find a device at index 32 [ 2173.716579] nbd: couldn't find a device at index 32 [ 2173.721720] nbd: couldn't find a device at index 32 [ 2173.727681] nbd: couldn't find a device at index 32 [ 2173.732864] nbd: couldn't find a device at index 32 [ 2173.737999] nbd: couldn't find a device at index 32 [ 2173.743163] nbd: couldn't find a device at index 32 [ 2173.748290] nbd: couldn't find a device at index 32 [ 2173.753441] nbd: couldn't find a device at index 32 [ 2173.758599] nbd: couldn't find a device at index 32 [ 2173.763777] nbd: couldn't find a device at index 32 [ 2173.768900] nbd: couldn't find a device at index 32 [ 2173.774143] nbd: couldn't find a device at index 32 [ 2173.779278] nbd: couldn't find a device at index 32 [ 2173.784416] nbd: couldn't find a device at index 32 [ 2173.789580] nbd: couldn't find a device at index 32 [ 2173.794871] nbd: couldn't find a device at index 32 [ 2173.800012] nbd: couldn't find a device at index 32 [ 2173.805170] nbd: couldn't find a device at index 32 [ 2173.810301] nbd: couldn't find a device at index 32 [ 2173.815460] nbd: couldn't find a device at index 32 [ 2173.820601] nbd: couldn't find a device at index 32 [ 2173.825737] nbd: couldn't find a device at index 32 [ 2173.830867] nbd: couldn't find a device at index 32 [ 2173.836078] nbd: couldn't find a device at index 32 [ 2173.841247] nbd: couldn't find a device at index 32 [ 2173.847412] nbd: couldn't find a device at index 32 [ 2173.852599] nbd: couldn't find a device at index 32 [ 2173.857731] nbd: couldn't find a device at index 32 [ 2173.862925] nbd: couldn't find a device at index 32 [ 2173.868066] nbd: couldn't find a device at index 32 [ 2173.873233] nbd: couldn't find a device at index 32 [ 2173.878368] nbd: couldn't find a device at index 32 [ 2173.883506] nbd: couldn't find a device at index 32 [ 2173.888643] nbd: couldn't find a device at index 32 [ 2173.893793] nbd: couldn't find a device at index 32 [ 2173.898940] nbd: couldn't find a device at index 32 [ 2173.904100] nbd: couldn't find a device at index 32 [ 2173.909232] nbd: couldn't find a device at index 32 [ 2173.914386] nbd: couldn't find a device at index 32 20:10:10 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES32=r1, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:10 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(&(0x7f0000000100), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:10 executing program 0: 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(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='schedstat\x00') pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x78, r2, 0x100, 0x40, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '*'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x4085}, 0x0) 20:10:10 executing program 2: write$FUSE_INIT(0xffffffffffffffff, &(0x7f0000000040)={0x50, 0x0, 0x0, {0x7, 0x24, 0x8001, 0x112600, 0x2501, 0x8, 0x2}}, 0x50) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="a35a077edbffa857ef3c5b24008000", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x20004082) getegid() syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x58, r4, 0x800, 0x70bd29, 0x25dfdbfc, {{}, {@val={0x8}, @val={0xc, 0x99, {0x5, 0x2}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x10}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x79}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x26}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x4e}]}, 0x58}}, 0x4000) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f00000000c0)={0x80000000, &(0x7f0000000080), &(0x7f0000000140)}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x20004082) (async) getegid() (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) (async) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x58, r4, 0x800, 0x70bd29, 0x25dfdbfc, {{}, {@val={0x8}, @val={0xc, 0x99, {0x5, 0x2}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x10}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x79}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x26}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x4e}]}, 0x58}}, 0x4000) (async) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f00000000c0)={0x80000000, &(0x7f0000000080), &(0x7f0000000140)}) (async) 20:10:10 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) (async) r3 = socket$inet6_udplite(0xa, 0x2, 0x88) sendmsg$L2TP_CMD_SESSION_MODIFY(r0, &(0x7f0000000140)={&(0x7f0000000080), 0xc, &(0x7f0000000100)={&(0x7f00000000c0)=ANY=[@ANYBLOB="24009496", @ANYRES16=r2, @ANYBLOB="00012cbd7000fbdbdf250700000008001700", @ANYRES32=r3, @ANYBLOB="08000b0002000000"], 0x24}, 0x1, 0x0, 0x0, 0x48004}, 0x8044) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r4 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/l2cap\x00') connect$pptp(r4, &(0x7f0000000040)={0x18, 0x2, {0x3, @remote}}, 0x1e) [ 2173.919477] nbd: couldn't find a device at index 32 [ 2173.924713] nbd: couldn't find a device at index 32 [ 2173.929809] nbd: couldn't find a device at index 32 [ 2173.935016] nbd: couldn't find a device at index 32 20:10:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES32=r1, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:10 executing program 5: r0 = syz_init_net_socket$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) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r2) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:10 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="0000c48f003b52c0a8b2431b001d", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:10 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='schedstat\x00') pipe(&(0x7f0000000080)) 20:10:10 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000000000040007800c00"/25], 0x24}}, 0x0) 20:10:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES32=r1, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:10 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:10 executing program 5: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000000100), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000000100), r2) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYRESOCT=r3, @ANYRES16=r3, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) 20:10:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="0000c48f003b52c0a8b2431b001d", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="0000c48f003b52c0a8b2431b001d", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) 20:10:10 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='schedstat\x00') 20:10:10 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000000000040007800c00"/25], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000000000040007800c00"/25], 0x24}}, 0x0) (async) 20:10:10 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="1f000000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) sendmsg$L2TP_CMD_NOOP(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r4, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x1}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x4}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x8}]}, 0x2c}}, 0x10) 20:10:10 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:10 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:10 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000000)='status\x00') read$FUSE(r0, &(0x7f0000000080)={0x2020}, 0x2020) 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$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x1c, r5, 0x1, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x84800}, 0x4040000) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) ioctl$sock_bt_hci(r6, 0x400448de, &(0x7f0000000200)="3ac42a09c05c95e81179360e076fc36425d98263225865cf45754a57b610139baf9af4ed1c5d8a6c5b3884a7b11560966d15860cc4e74b265a90b90e14834fd0d5e041508dfba9f4521a003bc040e558412f3358f1e4cdca049ee186257dd4ee4e") 20:10:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="1f000000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) sendmsg$L2TP_CMD_NOOP(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r4, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x1}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x4}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x8}]}, 0x2c}}, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="1f000000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) (async) sendmsg$L2TP_CMD_NOOP(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r4, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x1}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x4}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x8}]}, 0x2c}}, 0x10) (async) 20:10:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000000000040007800c00"/25], 0x24}}, 0x0) 20:10:11 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="0000c48f003b52c0a8b2431b001d", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) [ 2174.232727] nbd: must specify a device to reconfigure 20:10:11 executing program 1: r0 = socket(0x2, 0x4, 0x6) sendmsg$L2TP_CMD_TUNNEL_GET(r0, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, 0x0, 0x200, 0x70bd25, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x8}, 0x800) socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$pptp(0x18, 0x1, 0x2) bind$pptp(r1, &(0x7f0000000000)={0x18, 0x2, {0x1, @empty}}, 0x1e) 20:10:11 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:11 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000000)='status\x00') read$FUSE(r0, &(0x7f0000000080)={0x2020}, 0x2020) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x1c, r5, 0x1, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x84800}, 0x4040000) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) (async) ioctl$sock_bt_hci(r6, 0x400448de, &(0x7f0000000200)="3ac42a09c05c95e81179360e076fc36425d98263225865cf45754a57b610139baf9af4ed1c5d8a6c5b3884a7b11560966d15860cc4e74b265a90b90e14834fd0d5e041508dfba9f4521a003bc040e558412f3358f1e4cdca049ee186257dd4ee4e") [ 2174.321187] nbd: must specify a device to reconfigure 20:10:11 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(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x4c, r3, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x3e}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x60000000) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:11 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x12, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x3, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2174.366930] nbd: must specify a device to reconfigure 20:10:11 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="1f000000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) sendmsg$L2TP_CMD_NOOP(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r4, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x1}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x4}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x8}]}, 0x2c}}, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="1f000000", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000040), 0xffffffffffffffff) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) (async) sendmsg$L2TP_CMD_NOOP(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r4, 0x400, 0x70bd2c, 0x25dfdbfe, {}, [@L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x1}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x4}, @L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x8}]}, 0x2c}}, 0x10) (async) 20:10:11 executing program 1: r0 = socket(0x2, 0x4, 0x6) sendmsg$L2TP_CMD_TUNNEL_GET(r0, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, 0x0, 0x200, 0x70bd25, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x8}, 0x800) socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = socket$pptp(0x18, 0x1, 0x2) bind$pptp(r1, &(0x7f0000000000)={0x18, 0x2, {0x1, @empty}}, 0x1e) 20:10:11 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:11 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000000)='status\x00') read$FUSE(r0, &(0x7f0000000080)={0x2020}, 0x2020) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x1c, r5, 0x1, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x84800}, 0x4040000) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) ioctl$sock_bt_hci(r6, 0x400448de, &(0x7f0000000200)="3ac42a09c05c95e81179360e076fc36425d98263225865cf45754a57b610139baf9af4ed1c5d8a6c5b3884a7b11560966d15860cc4e74b265a90b90e14834fd0d5e041508dfba9f4521a003bc040e558412f3358f1e4cdca049ee186257dd4ee4e") syz_open_procfs(0x0, &(0x7f0000000000)='status\x00') (async) read$FUSE(r0, &(0x7f0000000080)={0x2020}, 0x2020) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x1c, r5, 0x1, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x84800}, 0x4040000) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r6, 0x0, 0x0) (async) ioctl$sock_bt_hci(r6, 0x400448de, &(0x7f0000000200)="3ac42a09c05c95e81179360e076fc36425d98263225865cf45754a57b610139baf9af4ed1c5d8a6c5b3884a7b11560966d15860cc4e74b265a90b90e14834fd0d5e041508dfba9f4521a003bc040e558412f3358f1e4cdca049ee186257dd4ee4e") (async) [ 2174.445967] nbd: must specify a device to reconfigure 20:10:11 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x12, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x3, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:11 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(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x4c, r3, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x3e}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x60000000) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 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(&(0x7f0000006bc0), r2) (async) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x4c, r3, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x3e}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x60000000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:11 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:11 executing program 1: r0 = socket(0x2, 0x4, 0x6) sendmsg$L2TP_CMD_TUNNEL_GET(r0, &(0x7f0000000140)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x14, 0x0, 0x200, 0x70bd25, 0x25dfdbfe}, 0x14}, 0x1, 0x0, 0x0, 0x8}, 0x800) (async, rerun: 32) socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r1 = socket$pptp(0x18, 0x1, 0x2) bind$pptp(r1, &(0x7f0000000000)={0x18, 0x2, {0x1, @empty}}, 0x1e) [ 2174.534594] nbd: must specify a device to reconfigure 20:10:11 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x12, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x3, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) r2 = socket(0x15, 0x5, 0x1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xb0, 0x0, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x590}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x48}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}]}]}, 0xb0}, 0x1, 0x0, 0x0, 0x40}, 0x1) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:11 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$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x4c, r3, 0x400, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @dev={0xfe, 0x80, '\x00', 0x3e}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x1}, 0x60000000) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2174.574479] nbd: must specify a device to reconfigure 20:10:11 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:11 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:11 executing program 4: ioctl$NBD_SET_FLAGS(0xffffffffffffffff, 0xab0a, 0x7fffffffffffffff) r0 = syz_init_net_socket$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$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r5) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) ioctl$MEDIA_IOC_REQUEST_ALLOC(r7, 0x80047c05, &(0x7f0000000200)) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r6, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x48800}, 0x100) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:11 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYRES16=r0], 0x1c}, 0x1, 0x0, 0x0, 0x200480d0}, 0x44818) [ 2174.709591] nbd: couldn't find a device at index 32 20:10:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) r2 = socket(0x15, 0x5, 0x1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xb0, 0x0, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x590}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x48}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}]}]}, 0xb0}, 0x1, 0x0, 0x0, 0x40}, 0x1) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r1, 0x0, 0x0) (async) socket(0x15, 0x5, 0x1) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r4, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xb0, 0x0, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x590}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x48}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}]}]}, 0xb0}, 0x1, 0x0, 0x0, 0x40}, 0x1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) 20:10:11 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$nbd(&(0x7f0000000100), r1) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) pipe(&(0x7f0000000340)={0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000480)={&(0x7f0000000380)={0xf0, r2, 0x400, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x191e1df5}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ')'}]}, 0xf0}, 0x1, 0x0, 0x0, 0x40}, 0x8040) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r8) sendmsg$NLBL_MGMT_C_ADD(r8, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r9, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8100c040}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x34, r9, 0x200, 0x70bd25, 0x25dfdafd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x31}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x4008004}, 0x4000) 20:10:11 executing program 5: 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2174.732138] nbd: couldn't find a device at index 0 20:10:11 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:11 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYRES16=r0], 0x1c}, 0x1, 0x0, 0x0, 0x200480d0}, 0x44818) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYRES16=r0], 0x1c}, 0x1, 0x0, 0x0, 0x200480d0}, 0x44818) (async) 20:10:11 executing program 4: ioctl$NBD_SET_FLAGS(0xffffffffffffffff, 0xab0a, 0x7fffffffffffffff) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async, rerun: 64) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r5) (async, rerun: 64) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) (async, rerun: 64) ioctl$MEDIA_IOC_REQUEST_ALLOC(r7, 0x80047c05, &(0x7f0000000200)) (rerun: 64) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r6, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x48800}, 0x100) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:11 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$nbd(&(0x7f0000000100), r1) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) pipe(&(0x7f0000000340)={0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000480)={&(0x7f0000000380)={0xf0, r2, 0x400, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x191e1df5}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ')'}]}, 0xf0}, 0x1, 0x0, 0x0, 0x40}, 0x8040) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r8) sendmsg$NLBL_MGMT_C_ADD(r8, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r9, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8100c040}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x34, r9, 0x200, 0x70bd25, 0x25dfdafd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x31}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x4008004}, 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$nbd(&(0x7f0000000100), r1) (async) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r4, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)) (async) pipe(&(0x7f0000000340)) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r7, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000480)={&(0x7f0000000380)={0xf0, r2, 0x400, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x191e1df5}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ')'}]}, 0xf0}, 0x1, 0x0, 0x0, 0x40}, 0x8040) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r8) (async) sendmsg$NLBL_MGMT_C_ADD(r8, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r9, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8100c040}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x34, r9, 0x200, 0x70bd25, 0x25dfdafd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x31}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x4008004}, 0x4000) (async) 20:10:11 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) [ 2174.837496] nbd: couldn't find a device at index 32 20:10:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) r2 = socket(0x15, 0x5, 0x1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xb0, 0x0, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x590}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x48}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}]}]}, 0xb0}, 0x1, 0x0, 0x0, 0x40}, 0x1) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r1, 0x0, 0x0) (async) socket(0x15, 0x5, 0x1) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r4, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0xb0, 0x0, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x590}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x48}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}]}]}, 0xb0}, 0x1, 0x0, 0x0, 0x40}, 0x1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r6, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) 20:10:11 executing program 5: 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2174.863571] nbd: couldn't find a device at index 0 20:10:11 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYRES16=r0], 0x1c}, 0x1, 0x0, 0x0, 0x200480d0}, 0x44818) 20:10:11 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$nbd(&(0x7f0000000100), r1) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) (async) pipe(&(0x7f0000000340)={0xffffffffffffffff}) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000004c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000480)={&(0x7f0000000380)={0xf0, r2, 0x400, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x191e1df5}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x400}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ')'}]}, 0xf0}, 0x1, 0x0, 0x0, 0x40}, 0x8040) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r9 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r8) sendmsg$NLBL_MGMT_C_ADD(r8, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r9, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8100c040}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x34, r9, 0x200, 0x70bd25, 0x25dfdafd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x31}}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}]}, 0x34}, 0x1, 0x0, 0x0, 0x4008004}, 0x4000) 20:10:11 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:11 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2174.994524] nbd: couldn't find a device at index 32 20:10:11 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r1, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, 0x0, 0x301, 0x70bd26, 0x25dfdbfc, {{}, {@void, @val={0xc, 0x99, {0x609, 0x46}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x47}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x48}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7c}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x22}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7b}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x27}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="e7abfe00a413801667e367c34cc1849038415eed3d1d8d57c3010000000000000074ea9e7ec4f760870a18", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x4000014) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) 20:10:11 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, r3, 0x300, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5edb}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x108}]}, 0x8c}, 0x1, 0x0, 0x0, 0x24040000}, 0x6890) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) syz_init_net_socket$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) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYRES32=r4, @ANYRES8=r6, @ANYBLOB="010025bd7000aece02e0030000000c00050001040201000000000c00030009000000000000000800010020"], 0x34}, 0x1, 0x0, 0x0, 0x881}, 0x0) 20:10:11 executing program 4: ioctl$NBD_SET_FLAGS(0xffffffffffffffff, 0xab0a, 0x7fffffffffffffff) r0 = syz_init_net_socket$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$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r5) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) ioctl$MEDIA_IOC_REQUEST_ALLOC(r7, 0x80047c05, &(0x7f0000000200)) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r6, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x48800}, 0x100) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) ioctl$NBD_SET_FLAGS(0xffffffffffffffff, 0xab0a, 0x7fffffffffffffff) (async) syz_init_net_socket$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$nbd(&(0x7f0000000100), r1) (async) syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r5) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r7, 0x0, 0x0) (async) ioctl$MEDIA_IOC_REQUEST_ALLOC(r7, 0x80047c05, &(0x7f0000000200)) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r6, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r6, 0x200, 0x70bd2b, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}]}, 0x28}, 0x1, 0x0, 0x0, 0x48800}, 0x100) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:11 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) 20:10:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) [ 2175.094419] nbd: couldn't find a device at index 0 20:10:11 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r1, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, 0x0, 0x301, 0x70bd26, 0x25dfdbfc, {{}, {@void, @val={0xc, 0x99, {0x609, 0x46}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x47}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x48}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7c}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x22}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7b}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x27}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="e7abfe00a413801667e367c34cc1849038415eed3d1d8d57c3010000000000000074ea9e7ec4f760870a18", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f0000000080)) (async) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r1, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, 0x0, 0x301, 0x70bd26, 0x25dfdbfc, {{}, {@void, @val={0xc, 0x99, {0x609, 0x46}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x47}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x48}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7c}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x22}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7b}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x27}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="e7abfe00a413801667e367c34cc1849038415eed3d1d8d57c3010000000000000074ea9e7ec4f760870a18", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:11 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, r3, 0x300, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5edb}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x108}]}, 0x8c}, 0x1, 0x0, 0x0, 0x24040000}, 0x6890) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYRES32=r4, @ANYRES8=r6, @ANYBLOB="010025bd7000aece02e0030000000c00050001040201000000000c00030009000000000000000800010020"], 0x34}, 0x1, 0x0, 0x0, 0x881}, 0x0) 20:10:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x4000014) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) 20:10:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='fd\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x1c, 0x0, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24002055}, 0x8004) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x5c, 0x0, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff81}]}, 0x5c}, 0x1, 0x0, 0x0, 0xa0}, 0x4080) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x4000014) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x2, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast1}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x4000014) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) [ 2175.221465] nbd: couldn't find a device at index 0 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r1, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, 0x0, 0x301, 0x70bd26, 0x25dfdbfc, {{}, {@void, @val={0xc, 0x99, {0x609, 0x46}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x47}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x48}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7c}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x22}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7b}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x27}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="e7abfe00a413801667e367c34cc1849038415eed3d1d8d57c3010000000000000074ea9e7ec4f760870a18", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f0000000080)) (async) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r1, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, 0x0, 0x301, 0x70bd26, 0x25dfdbfc, {{}, {@void, @val={0xc, 0x99, {0x609, 0x46}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x47}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x48}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7c}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x22}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x7b}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x27}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x39}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0xc}]}, 0x8c}, 0x1, 0x0, 0x0, 0x40}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="e7abfe00a413801667e367c34cc1849038415eed3d1d8d57c3010000000000000074ea9e7ec4f760870a18", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='fd\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x1c, 0x0, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24002055}, 0x8004) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x5c, 0x0, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff81}]}, 0x5c}, 0x1, 0x0, 0x0, 0xa0}, 0x4080) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='fd\x00') (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x1c, 0x0, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24002055}, 0x8004) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x5c, 0x0, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff81}]}, 0x5c}, 0x1, 0x0, 0x0, 0xa0}, 0x4080) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) [ 2175.241603] nbd: couldn't find a device at index 0 20:10:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="978e2c8a2f", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:12 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r0) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000100)={0x8c, r3, 0x300, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x9}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5edb}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x108}]}, 0x8c}, 0x1, 0x0, 0x0, 0x24040000}, 0x6890) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) (async) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYRES32=r4, @ANYRES8=r6, @ANYBLOB="010025bd7000aece02e0030000000c00050001040201000000000c00030009000000000000000800010020"], 0x34}, 0x1, 0x0, 0x0, 0x881}, 0x0) 20:10:12 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xd8000180}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, r2, 0x400, 0x70bd28, 0x25dfdbfb, {}, [@L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x200}]}, 0x28}, 0x1, 0x0, 0x0, 0x80}, 0x40800) 20:10:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='fd\x00') (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) (async, rerun: 32) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) (rerun: 32) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x1c, 0x0, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24002055}, 0x8004) (async, rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x5c, 0x0, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff81}]}, 0x5c}, 0x1, 0x0, 0x0, 0xa0}, 0x4080) (async, rerun: 32) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="978e2c8a2f", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:12 executing program 3: r0 = syz_init_net_socket$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$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x20044010}, 0x40000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="3c270270d20a7884190000", @ANYRES16=r4, @ANYBLOB="04002dbd7000fedbdf250300000009000a007b27272c240000000c000800050000000000000008000a005e275d27"], 0x34}}, 0x20008001) 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) [ 2175.406888] nbd: couldn't find a device at index 0 20:10:12 executing program 3: r0 = syz_init_net_socket$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) 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$nbd(&(0x7f0000000000), r2) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x20044010}, 0x40000) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="3c270270d20a7884190000", @ANYRES16=r4, @ANYBLOB="04002dbd7000fedbdf250300000009000a007b27272c240000000c000800050000000000000008000a005e275d27"], 0x34}}, 0x20008001) 20:10:12 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000240)=ANY=[@ANYBLOB="1e00b722c32f0008d4499fc4b76e7aa9", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c0005000104021348e9319c0004800c0003000900000000000000"], 0x34}}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000003c0)=ANY=[@ANYBLOB="184dae10a37085ddd40cba347e08786da736b242", @ANYRES16=r3, @ANYBLOB="00042abd7000ffdbdf250600000008000800ac1e0001"], 0x1c}, 0x1, 0x0, 0x0, 0x24000000}, 0x81) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x68, r3, 0x400, 0x70bd27, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x18}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000010}, 0x4004800) [ 2175.433442] nbd: couldn't find a device at index 0 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xd8000180}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, r2, 0x400, 0x70bd28, 0x25dfdbfb, {}, [@L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x200}]}, 0x28}, 0x1, 0x0, 0x0, 0x80}, 0x40800) 20:10:12 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="978e2c8a2f", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:12 executing program 3: 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) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x20044010}, 0x40000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="3c270270d20a7884190000", @ANYRES16=r4, @ANYBLOB="04002dbd7000fedbdf250300000009000a007b27272c240000000c000800050000000000000008000a005e275d27"], 0x34}}, 0x20008001) syz_init_net_socket$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$nbd(&(0x7f0000000000), r2) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x20044010}, 0x40000) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="3c270270d20a7884190000", @ANYRES16=r4, @ANYBLOB="04002dbd7000fedbdf250300000009000a007b27272c240000000c000800050000000000000008000a005e275d27"], 0x34}}, 0x20008001) (async) 20:10:12 executing program 5: 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000240)=ANY=[@ANYBLOB="1e00b722c32f0008d4499fc4b76e7aa9", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c0005000104021348e9319c0004800c0003000900000000000000"], 0x34}}, 0x0) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000003c0)=ANY=[@ANYBLOB="184dae10a37085ddd40cba347e08786da736b242", @ANYRES16=r3, @ANYBLOB="00042abd7000ffdbdf250600000008000800ac1e0001"], 0x1c}, 0x1, 0x0, 0x0, 0x24000000}, 0x81) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x68, r3, 0x400, 0x70bd27, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x18}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000010}, 0x4004800) 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000640)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000eca0bb23c349c0510000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x20, r5, 0x8, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x40004) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) syz_genetlink_get_family_id$nbd(&(0x7f0000000600), r3) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r3) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000700)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10010}, 0xc, &(0x7f00000006c0)={&(0x7f0000000680)={0x2c, 0x0, 0x2, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40f9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20008001}, 0x20000000) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r0) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x2000040}, 0xc, &(0x7f0000000580)={&(0x7f0000000540)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="1bc6700000080001000000000008000100000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x2000c000}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x34, r8, 0x100, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3d}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x34}}, 0x80) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x38, r7, 0x2, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}]}, 0x38}, 0x1, 0x0, 0x0, 0x8004000}, 0x893) 20:10:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) get_robust_list(0x0, &(0x7f00000001c0)=&(0x7f0000000180)={&(0x7f0000000080)={&(0x7f0000000000)}, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)}}, &(0x7f0000000200)=0x18) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x20, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) (async) sendmsg$L2TP_CMD_TUNNEL_MODIFY(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0xd8000180}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, r2, 0x400, 0x70bd28, 0x25dfdbfb, {}, [@L2TP_ATTR_ENCAP_TYPE={0x6, 0x2, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0x200}]}, 0x28}, 0x1, 0x0, 0x0, 0x80}, 0x40800) 20:10:12 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000340)=ANY=[@ANYBLOB="2c0000008e8807fc3fd2ea72d9fd", @ANYRES16=r4, @ANYBLOB="00022abd7000fedbdf25020000000c00020006000000000000000c000300b6c9000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x20040051}, 0x4859) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), 0xffffffffffffffff) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x30, r5, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x30}, 0x1, 0x0, 0x0, 0x80}, 0x4000010) 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000240)=ANY=[@ANYBLOB="1e00b722c32f0008d4499fc4b76e7aa9", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c0005000104021348e9319c0004800c0003000900000000000000"], 0x34}}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000003c0)=ANY=[@ANYBLOB="184dae10a37085ddd40cba347e08786da736b242", @ANYRES16=r3, @ANYBLOB="00042abd7000ffdbdf250600000008000800ac1e0001"], 0x1c}, 0x1, 0x0, 0x0, 0x24000000}, 0x81) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x68, r3, 0x400, 0x70bd27, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x18}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000010}, 0x4004800) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000240)=ANY=[@ANYBLOB="1e00b722c32f0008d4499fc4b76e7aa9", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c0005000104021348e9319c0004800c0003000900000000000000"], 0x34}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), 0xffffffffffffffff) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000180)={&(0x7f00000003c0)=ANY=[@ANYBLOB="184dae10a37085ddd40cba347e08786da736b242", @ANYRES16=r3, @ANYBLOB="00042abd7000ffdbdf250600000008000800ac1e0001"], 0x1c}, 0x1, 0x0, 0x0, 0x24000000}, 0x81) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x68, r3, 0x400, 0x70bd27, 0x25dfdbfc, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x18}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010101}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @rand_addr=0x64010101}]}, 0x68}, 0x1, 0x0, 0x0, 0x20000010}, 0x4004800) (async) 20:10:12 executing program 4: r0 = syz_init_net_socket$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(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000640)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000eca0bb23c349c0510000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x20, r5, 0x8, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x40004) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000600), r3) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r3) (async, rerun: 64) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000700)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10010}, 0xc, &(0x7f00000006c0)={&(0x7f0000000680)={0x2c, 0x0, 0x2, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40f9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20008001}, 0x20000000) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r0) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x2000040}, 0xc, &(0x7f0000000580)={&(0x7f0000000540)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="1bc6700000080001000000000008000100000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x2000c000}, 0x0) (async, rerun: 64) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x34, r8, 0x100, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3d}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x34}}, 0x80) (async, rerun: 64) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x38, r7, 0x2, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}]}, 0x38}, 0x1, 0x0, 0x0, 0x8004000}, 0x893) 20:10:12 executing program 2: 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(&(0x7f0000000100), r1) get_robust_list(0x0, &(0x7f00000001c0)=&(0x7f0000000180)={&(0x7f0000000080)={&(0x7f0000000000)}, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)}}, &(0x7f0000000200)=0x18) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x20, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="0000000000000000000005c710d73b61f65d9cdce26a960ce3a7f800000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) [ 2175.734936] nbd: couldn't find a device at index 32 20:10:12 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000340)=ANY=[@ANYBLOB="2c0000008e8807fc3fd2ea72d9fd", @ANYRES16=r4, @ANYBLOB="00022abd7000fedbdf25020000000c00020006000000000000000c000300b6c9000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x20040051}, 0x4859) (async, rerun: 32) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), 0xffffffffffffffff) (rerun: 32) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x30, r5, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x30}, 0x1, 0x0, 0x0, 0x80}, 0x4000010) 20:10:12 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_SG_ALLOC(0xffffffffffffffff, 0xc0106438, &(0x7f0000000000)={0x8000000000000000}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) setsockopt$inet_dccp_int(r1, 0x21, 0xb, &(0x7f0000000080)=0x7, 0x4) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r0) 20:10:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) get_robust_list(0x0, &(0x7f00000001c0)=&(0x7f0000000180)={&(0x7f0000000080)={&(0x7f0000000000)}, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)}}, &(0x7f0000000200)=0x18) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x20, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 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$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) get_robust_list(0x0, &(0x7f00000001c0)=&(0x7f0000000180)={&(0x7f0000000080)={&(0x7f0000000000)}, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)}}, &(0x7f0000000200)=0x18) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x20, 0x0, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="0000000000000000000005c710d73b61f65d9cdce26a960ce3a7f800000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:12 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_SG_ALLOC(0xffffffffffffffff, 0xc0106438, &(0x7f0000000000)={0x8000000000000000}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) setsockopt$inet_dccp_int(r1, 0x21, 0xb, &(0x7f0000000080)=0x7, 0x4) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) ioctl$DRM_IOCTL_SG_ALLOC(0xffffffffffffffff, 0xc0106438, &(0x7f0000000000)={0x8000000000000000}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r1, 0x0, 0x0) (async) setsockopt$inet_dccp_int(r1, 0x21, 0xb, &(0x7f0000000080)=0x7, 0x4) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r0) (async) 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="0000000000000000000005c710d73b61f65d9cdce26a960ce3a7f800000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) [ 2175.925256] nbd: couldn't find a device at index 32 20:10:12 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000340)=ANY=[@ANYBLOB="2c0000008e8807fc3fd2ea72d9fd", @ANYRES16=r4, @ANYBLOB="00022abd7000fedbdf25020000000c00020006000000000000000c000300b6c9000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x20040051}, 0x4859) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), 0xffffffffffffffff) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x30, r5, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x30}, 0x1, 0x0, 0x0, 0x80}, 0x4000010) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f0000000340)=ANY=[@ANYBLOB="2c0000008e8807fc3fd2ea72d9fd", @ANYRES16=r4, @ANYBLOB="00022abd7000fedbdf25020000000c00020006000000000000000c000300b6c9000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x20040051}, 0x4859) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), 0xffffffffffffffff) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x30, r5, 0x10, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x1}]}, 0x30}, 0x1, 0x0, 0x0, 0x80}, 0x4000010) (async) 20:10:12 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000640)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000eca0bb23c349c0510000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async, rerun: 64) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r5 = syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000480)={&(0x7f0000000380)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000440)={&(0x7f0000000400)={0x20, r5, 0x8, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x20}, 0x1, 0x0, 0x0, 0x4000}, 0x40004) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000600), r3) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000200), r3) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000700)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10010}, 0xc, &(0x7f00000006c0)={&(0x7f0000000680)={0x2c, 0x0, 0x2, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x40f9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20008001}, 0x20000000) (async, rerun: 64) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r0) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x2000040}, 0xc, &(0x7f0000000580)={&(0x7f0000000540)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r10, @ANYBLOB="1bc6700000080001000000000008000100000000000000"], 0x2c}, 0x1, 0x0, 0x0, 0x2000c000}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x34, r8, 0x100, 0x70bd2a, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @dev={0xac, 0x14, 0x14, 0x3d}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @remote}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x5}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x34}}, 0x80) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x38, r7, 0x2, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xa}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}]}, 0x38}, 0x1, 0x0, 0x0, 0x8004000}, 0x893) 20:10:12 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) ioctl$DRM_IOCTL_SG_ALLOC(0xffffffffffffffff, 0xc0106438, &(0x7f0000000000)={0x8000000000000000}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r1, 0x0, 0x0) setsockopt$inet_dccp_int(r1, 0x21, 0xb, &(0x7f0000000080)=0x7, 0x4) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r0) 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:12 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$nbd(&(0x7f0000000500), r0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000580)={&(0x7f0000000540)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0000acbd7000ffdbdf250567e71f0000ecc2df29000001000000"], 0x20}, 0x1, 0x0, 0x0, 0x24000040}, 0x2000805d) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00022abd7000ffdbdf25054000000c000500000600a50000000006000a002d2300000c00060002000000000000000c00020001000000000000000c0806000100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x800}, 0x11) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000480)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0x54, 0x0, 0x20, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}]}, 0x54}, 0x1, 0x0, 0x0, 0x8000}, 0x840) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000640), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000740)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x50, r3, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x40000}, 0x40884) 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$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000840)={&(0x7f0000000780)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000800)={&(0x7f0000000880)={0x3c, r7, 0x24, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffff0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40001}, 0x95) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x14, r9, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000300)={&(0x7f0000000380)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7000fbdbdf250300010008000100000000000c00050000010000eeff00000c0004004f000000000c00030004000000000000000c0008000100000d00000000"], 0x4c}, 0x1, 0x0, 0x0, 0x40880}, 0x800) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="00000000000000000000050005abbf4787a910000000001300d600000088a1304d81b7303c271ab1146f44cb963001f783defcb54d36700deea9021e1b2845a931dc579ac3cfcb8732425b73d08bbd62c80398a1080860c36a93e64356895242eacfda372883f7cc2886d6a805331843dec2ab27f9fa5ae20c36592e4ae05e0fa5fb0160845f31a01de29e5616272dc450a11b93bc0a7265595c8620"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) [ 2176.064594] nbd: couldn't find a device at index 32 [ 2176.083929] nbd: couldn't find a device at index 32 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_procfs(0x0, &(0x7f0000000180)='fdinfo\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) r3 = socket(0x3, 0x5, 0xa7d) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r8, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000380)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000340)={&(0x7f00000001c0)={0x150, 0x0, 0x800, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x103}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x150}, 0x1, 0x0, 0x0, 0x20000000}, 0x44) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x20040800}, 0xc084) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="00000000000000000000050005abbf4787a910000000001300d600000088a1304d81b7303c271ab1146f44cb963001f783defcb54d36700deea9021e1b2845a931dc579ac3cfcb8732425b73d08bbd62c80398a1080860c36a93e64356895242eacfda372883f7cc2886d6a805331843dec2ab27f9fa5ae20c36592e4ae05e0fa5fb0160845f31a01de29e5616272dc450a11b93bc0a7265595c8620"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:12 executing program 3: r0 = syz_init_net_socket$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$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="000429bd7000ffdbdf250500000008000100000000000c00060002000000000000000000000c0005000c0100"/54], 0x3c}, 0x1, 0x0, 0x0, 0x20004000}, 0xc850) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}, 0x1, 0x0, 0x0, 0x40800}, 0x0) 20:10:12 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, 0x0, 0x0) [ 2176.196843] nbd: must specify at least one socket 20:10:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000580)={&(0x7f0000000540)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0000acbd7000ffdbdf250567e71f0000ecc2df29000001000000"], 0x20}, 0x1, 0x0, 0x0, 0x24000040}, 0x2000805d) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00022abd7000ffdbdf25054000000c000500000600a50000000006000a002d2300000c00060002000000000000000c00020001000000000000000c0806000100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x800}, 0x11) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000480)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0x54, 0x0, 0x20, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}]}, 0x54}, 0x1, 0x0, 0x0, 0x8000}, 0x840) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000640), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000740)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x50, r3, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x40000}, 0x40884) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000840)={&(0x7f0000000780)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000800)={&(0x7f0000000880)={0x3c, r7, 0x24, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffff0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40001}, 0x95) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x14, r9, 0x1}, 0x14}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000300)={&(0x7f0000000380)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7000fbdbdf250300010008000100000000000c00050000010000eeff00000c0004004f000000000c00030004000000000000000c0008000100000d00000000"], 0x4c}, 0x1, 0x0, 0x0, 0x40880}, 0x800) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r0) (async) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000580)={&(0x7f0000000540)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0000acbd7000ffdbdf250567e71f0000ecc2df29000001000000"], 0x20}, 0x1, 0x0, 0x0, 0x24000040}, 0x2000805d) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00022abd7000ffdbdf25054000000c000500000600a50000000006000a002d2300000c00060002000000000000000c00020001000000000000000c0806000100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x800}, 0x11) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000480)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0x54, 0x0, 0x20, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}]}, 0x54}, 0x1, 0x0, 0x0, 0x8000}, 0x840) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000640), r1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000740)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x50, r3, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x40000}, 0x40884) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) (async) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000840)={&(0x7f0000000780)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000800)={&(0x7f0000000880)={0x3c, r7, 0x24, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffff0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40001}, 0x95) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x14, r9, 0x1}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000300)={&(0x7f0000000380)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7000fbdbdf250300010008000100000000000c00050000010000eeff00000c0004004f000000000c00030004000000000000000c0008000100000d00000000"], 0x4c}, 0x1, 0x0, 0x0, 0x40880}, 0x800) (async) 20:10:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}]}, 0x2c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, r5, 0x10, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffe}]}, 0x30}, 0x1, 0x0, 0x0, 0x6000}, 0x4000000) 20:10:12 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="00000000000000000000050005abbf4787a910000000001300d600000088a1304d81b7303c271ab1146f44cb963001f783defcb54d36700deea9021e1b2845a931dc579ac3cfcb8732425b73d08bbd62c80398a1080860c36a93e64356895242eacfda372883f7cc2886d6a805331843dec2ab27f9fa5ae20c36592e4ae05e0fa5fb0160845f31a01de29e5616272dc450a11b93bc0a7265595c8620"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="00000000000000000000050005abbf4787a910000000001300d600000088a1304d81b7303c271ab1146f44cb963001f783defcb54d36700deea9021e1b2845a931dc579ac3cfcb8732425b73d08bbd62c80398a1080860c36a93e64356895242eacfda372883f7cc2886d6a805331843dec2ab27f9fa5ae20c36592e4ae05e0fa5fb0160845f31a01de29e5616272dc450a11b93bc0a7265595c8620"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, 0x0, 0x0) 20:10:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_procfs(0x0, &(0x7f0000000180)='fdinfo\x00') (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) r3 = socket(0x3, 0x5, 0xa7d) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r8, 0x0, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000380)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000340)={&(0x7f00000001c0)={0x150, 0x0, 0x800, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x103}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x150}, 0x1, 0x0, 0x0, 0x20000000}, 0x44) (async, rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x20040800}, 0xc084) [ 2176.288346] nbd: couldn't find a device at index 32 20:10:13 executing program 3: r0 = syz_init_net_socket$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) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="000429bd7000ffdbdf250500000008000100000000000c00060002000000000000000000000c0005000c0100"/54], 0x3c}, 0x1, 0x0, 0x0, 0x20004000}, 0xc850) (async) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}, 0x1, 0x0, 0x0, 0x40800}, 0x0) [ 2176.316974] nbd: must specify at least one socket 20:10:13 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}]}, 0x2c}}, 0x0) 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$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, r5, 0x10, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffe}]}, 0x30}, 0x1, 0x0, 0x0, 0x6000}, 0x4000000) 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, 0x0, 0x0) 20:10:13 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) pipe(&(0x7f0000000040)={0xffffffffffffffff}) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r1) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f00000001c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000bdd235202537c80c620df85542db00000058f58a682be17a80517e805e6794fcb78c5caedf7b552f79bc1c042d863b51046db0bc011ecdd7b699c45e3365ed024f8d9ace502f83889e5e3454651336d2c3c52ac5533e"], 0x14}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r2, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @multicast1}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x7}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @rand_addr=0x64010101}, @L2TP_ATTR_MTU={0x6, 0x1c, 0xfff}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'dvmrp0\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x24004015) 20:10:13 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_procfs(0x0, &(0x7f0000000180)='fdinfo\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) r3 = socket(0x3, 0x5, 0xa7d) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r8, 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000380)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000340)={&(0x7f00000001c0)={0x150, 0x0, 0x800, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x103}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x150}, 0x1, 0x0, 0x0, 0x20000000}, 0x44) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x20040800}, 0xc084) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_open_procfs(0x0, &(0x7f0000000180)='fdinfo\x00') (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r2, 0x0, 0x0) (async) socket(0x3, 0x5, 0xa7d) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r4, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r5, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r6, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r7, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r8, 0x0, 0x0) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000380)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000340)={&(0x7f00000001c0)={0x150, 0x0, 0x800, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2d}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}, @NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r1}, {0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x103}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}]}, 0x150}, 0x1, 0x0, 0x0, 0x20000000}, 0x44) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r9, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x20040800}, 0xc084) (async) [ 2176.355650] nbd: must specify at least one socket 20:10:13 executing program 2: 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$nbd(&(0x7f0000000500), r0) (rerun: 64) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000005c0)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000580)={&(0x7f0000000540)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0000acbd7000ffdbdf250567e71f0000ecc2df29000001000000"], 0x20}, 0x1, 0x0, 0x0, 0x24000040}, 0x2000805d) (async, rerun: 64) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="00022abd7000ffdbdf25054000000c000500000600a50000000006000a002d2300000c00060002000000000000000c00020001000000000000000c0806000100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x800}, 0x11) (rerun: 64) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000480)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000400)={0x54, 0x0, 0x20, 0x70bd2c, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @initdev={0xac, 0x1e, 0x1, 0x0}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private2={0xfc, 0x2, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @local}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}]}, 0x54}, 0x1, 0x0, 0x0, 0x8000}, 0x840) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000640), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000740)={&(0x7f0000000600)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000700)={&(0x7f0000000680)={0x50, r3, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @empty}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x40000}, 0x40884) 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$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r6) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r7, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async, rerun: 32) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) sendmsg$NBD_CMD_DISCONNECT(r8, &(0x7f0000000840)={&(0x7f0000000780)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000800)={&(0x7f0000000880)={0x3c, r7, 0x24, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffff0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40001}, 0x95) (async) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x14, r9, 0x1}, 0x14}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000340)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000300)={&(0x7f0000000380)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="100027bd7000fbdbdf250300010008000100000000000c00050000010000eeff00000c0004004f000000000c00030004000000000000000c0008000100000d00000000"], 0x4c}, 0x1, 0x0, 0x0, 0x40880}, 0x800) (rerun: 64) 20:10:13 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="000429bd7000ffdbdf250500000008000100000000000c00060002000000000000000000000c0005000c0100"/54], 0x3c}, 0x1, 0x0, 0x0, 0x20004000}, 0xc850) (rerun: 32) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}, 0x1, 0x0, 0x0, 0x40800}, 0x0) 20:10:13 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) pipe(&(0x7f0000000040)={0xffffffffffffffff}) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r1) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f00000001c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000bdd235202537c80c620df85542db00000058f58a682be17a80517e805e6794fcb78c5caedf7b552f79bc1c042d863b51046db0bc011ecdd7b699c45e3365ed024f8d9ace502f83889e5e3454651336d2c3c52ac5533e"], 0x14}}, 0x0) (async) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r2, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @multicast1}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x7}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @rand_addr=0x64010101}, @L2TP_ATTR_MTU={0x6, 0x1c, 0xfff}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'dvmrp0\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x24004015) 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) 20:10:13 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}]}, 0x2c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, r5, 0x10, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffe}]}, 0x30}, 0x1, 0x0, 0x0, 0x6000}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)={0x2c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}]}, 0x2c}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) (async) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x30, r5, 0x10, 0x70bd27, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffffe}]}, 0x30}, 0x1, 0x0, 0x0, 0x6000}, 0x4000000) (async) [ 2176.453965] nbd: must specify at least one socket 20:10:13 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200900c0}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x20, r2, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x20}, 0x1, 0x0, 0x0, 0x40050}, 0x20000000) [ 2176.523566] nbd: couldn't find a device at index 32 20:10:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r0) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x4c, r3, 0x8, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}]}, 0x4c}, 0x1, 0x0, 0x0, 0x41}, 0xc850) 20:10:13 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) pipe(&(0x7f0000000040)={0xffffffffffffffff}) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r1) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f00000001c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000bdd235202537c80c620df85542db00000058f58a682be17a80517e805e6794fcb78c5caedf7b552f79bc1c042d863b51046db0bc011ecdd7b699c45e3365ed024f8d9ace502f83889e5e3454651336d2c3c52ac5533e"], 0x14}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r2, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @multicast1}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x7}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @rand_addr=0x64010101}, @L2TP_ATTR_MTU={0x6, 0x1c, 0xfff}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'dvmrp0\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x24004015) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) pipe(&(0x7f0000000040)) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000000), r1) (async) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f00000001c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=0x0, @ANYBLOB="0000000000bdd235202537c80c620df85542db00000058f58a682be17a80517e805e6794fcb78c5caedf7b552f79bc1c042d863b51046db0bc011ecdd7b699c45e3365ed024f8d9ace502f83889e5e3454651336d2c3c52ac5533e"], 0x14}}, 0x0) (async) sendmsg$L2TP_CMD_TUNNEL_GET(r3, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x58, r2, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @multicast1}, @L2TP_ATTR_OFFSET={0x6, 0x3, 0x8}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x7}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @rand_addr=0x64010101}, @L2TP_ATTR_MTU={0x6, 0x1c, 0xfff}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'dvmrp0\x00'}]}, 0x58}, 0x1, 0x0, 0x0, 0x40}, 0x24004015) (async) 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) [ 2176.550183] nbd: must specify at least one socket [ 2176.598349] nbd: must specify at least one socket 20:10:13 executing program 2: geteuid() 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$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = socket(0x18, 0x800, 0x40) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x109}]}, 0x28}}, 0x200400c0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) connect$nfc_raw(r6, &(0x7f0000000080)={0x27, 0x1, 0x1, 0xa3a737da4d893673}, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) write$FUSE_ATTR(r7, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r8, 0x0, 0x0) r9 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo\x00') sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd70000000000001000000040007802c00078008000100", @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="14000200", @ANYRES32=r9, @ANYBLOB="d3b408a119e68b55ed6bcd79e06f979070ecd6ac1a3a3ca73faa87445622a937c4845f78f6e48d280dcda19632995c03a42e453a2f9e74da72616355c32a34bf00000000000000028f3ffe79089f4c1697a658b85f5251191e0a84e308"], 0x44}}, 0x0) 20:10:13 executing program 5: 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200900c0}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x20, r2, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x20}, 0x1, 0x0, 0x0, 0x40050}, 0x20000000) 20:10:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r0) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x4c, r3, 0x8, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}]}, 0x4c}, 0x1, 0x0, 0x0, 0x41}, 0xc850) 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) 20:10:13 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="00000000000000c000000500000000001300d600000016f7c19cac34b5d23c70615f34cf1ead18d56a5cbf2d9694556a4e12f85292e031178b6180a5267fcb63e5b9b4d3f493c910f9a05e50a409f95d213f79fe2e5f7dd8027a8dae49e4cce5223b2d1346d8db5ce82770c0cb362403dbd44704a0d7076f36c8c2d07547960801c44e909f25b9be1ab8bec14544a1ec9d8b00000000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:13 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(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x100, 0x70bd25, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x6dec}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000800}, 0x80) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2176.638374] nbd: couldn't find a device at index 0 [ 2176.655340] nbd: couldn't find a device at index 32 20:10:13 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200900c0}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x20, r2, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x20}, 0x1, 0x0, 0x0, 0x40050}, 0x20000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200900c0}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x20, r2, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x20}, 0x1, 0x0, 0x0, 0x40050}, 0x20000000) (async) 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0) [ 2176.740549] nbd: couldn't find a device at index 0 20:10:13 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="00000000000000c000000500000000001300d600000016f7c19cac34b5d23c70615f34cf1ead18d56a5cbf2d9694556a4e12f85292e031178b6180a5267fcb63e5b9b4d3f493c910f9a05e50a409f95d213f79fe2e5f7dd8027a8dae49e4cce5223b2d1346d8db5ce82770c0cb362403dbd44704a0d7076f36c8c2d07547960801c44e909f25b9be1ab8bec14544a1ec9d8b00000000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:13 executing program 2: geteuid() (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = socket(0x18, 0x800, 0x40) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) (async) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x109}]}, 0x28}}, 0x200400c0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) connect$nfc_raw(r6, &(0x7f0000000080)={0x27, 0x1, 0x1, 0xa3a737da4d893673}, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) write$FUSE_ATTR(r7, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r8, 0x0, 0x0) r9 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo\x00') sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd70000000000001000000040007802c00078008000100", @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="14000200", @ANYRES32=r9, @ANYBLOB="d3b408a119e68b55ed6bcd79e06f979070ecd6ac1a3a3ca73faa87445622a937c4845f78f6e48d280dcda19632995c03a42e453a2f9e74da72616355c32a34bf00000000000000028f3ffe79089f4c1697a658b85f5251191e0a84e308"], 0x44}}, 0x0) 20:10:13 executing program 4: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x100, 0x70bd25, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x6dec}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000800}, 0x80) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x100, 0x70bd25, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x6dec}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000800}, 0x80) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:13 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r0) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x4c, r3, 0x8, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}]}, 0x4c}, 0x1, 0x0, 0x0, 0x41}, 0xc850) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r0) (async) sendmsg$NLBL_MGMT_C_ADD(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x4c, r3, 0x8, 0x70bd2a, 0x25dfdbfe, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @private1={0xfc, 0x1, '\x00', 0x1}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @mcast1}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @private=0xa010102}]}, 0x4c}, 0x1, 0x0, 0x0, 0x41}, 0xc850) (async) [ 2176.780854] nbd: must specify a size in bytes for the device [ 2176.798717] nbd: couldn't find a device at index 32 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0) [ 2176.839811] nbd: couldn't find a device at index 0 [ 2176.876021] nbd: couldn't find a device at index 0 20:10:13 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$nbd(&(0x7f0000000140), r0) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000000)) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0000000900000000000000400001e2"], 0x34}}, 0x0) 20:10:13 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="00000000000000c000000500000000001300d600000016f7c19cac34b5d23c70615f34cf1ead18d56a5cbf2d9694556a4e12f85292e031178b6180a5267fcb63e5b9b4d3f493c910f9a05e50a409f95d213f79fe2e5f7dd8027a8dae49e4cce5223b2d1346d8db5ce82770c0cb362403dbd44704a0d7076f36c8c2d07547960801c44e909f25b9be1ab8bec14544a1ec9d8b00000000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="00000000000000c000000500000000001300d600000016f7c19cac34b5d23c70615f34cf1ead18d56a5cbf2d9694556a4e12f85292e031178b6180a5267fcb63e5b9b4d3f493c910f9a05e50a409f95d213f79fe2e5f7dd8027a8dae49e4cce5223b2d1346d8db5ce82770c0cb362403dbd44704a0d7076f36c8c2d07547960801c44e909f25b9be1ab8bec14544a1ec9d8b00000000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) 20:10:13 executing program 2: geteuid() (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = socket(0x18, 0x800, 0x40) (async, rerun: 64) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) (rerun: 64) write$FUSE_ATTR(r4, 0x0, 0x0) (async) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x109}]}, 0x28}}, 0x200400c0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async, rerun: 32) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) (rerun: 32) connect$nfc_raw(r6, &(0x7f0000000080)={0x27, 0x1, 0x1, 0xa3a737da4d893673}, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) write$FUSE_ATTR(r7, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r8, 0x0, 0x0) (async) r9 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo\x00') sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd70000000000001000000040007802c00078008000100", @ANYRES32=r7, @ANYBLOB="08000100", @ANYRES32=r8, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="14000200", @ANYRES32=r9, @ANYBLOB="d3b408a119e68b55ed6bcd79e06f979070ecd6ac1a3a3ca73faa87445622a937c4845f78f6e48d280dcda19632995c03a42e453a2f9e74da72616355c32a34bf00000000000000028f3ffe79089f4c1697a658b85f5251191e0a84e308"], 0x44}}, 0x0) 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0) 20:10:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_ADD(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r3, 0x100, 0x70bd25, 0x25dfdbff, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @rand_addr=0x6dec}, @NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x20000800}, 0x80) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2176.901418] nbd: must specify a size in bytes for the device [ 2176.924639] nbd: couldn't find a device at index 32 [ 2176.942789] nbd: couldn't find a device at index 32 20:10:13 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x30, 0x0, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}]}, 0x30}, 0x1, 0x0, 0x0, 0x44040}, 0xc00) 20:10:13 executing program 1: sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'ipvlan0\x00'}]}, 0x30}, 0x1, 0x0, 0x0, 0x20000040}, 0x8094) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:13 executing program 5: 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$nbd(&(0x7f0000000140), r0) (async) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000000)) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0000000900000000000000400001e2"], 0x34}}, 0x0) 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) [ 2176.979763] nla_parse: 9 callbacks suppressed [ 2176.979770] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2177.019753] nbd: must specify a device to reconfigure 20:10:13 executing program 1: sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'ipvlan0\x00'}]}, 0x30}, 0x1, 0x0, 0x0, 0x20000040}, 0x8094) (async) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x2c, 0x0, 0x100, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '^\xfe.%\\]'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040050}, 0x20040000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="240013f8", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) ioctl$SOUND_MIXER_WRITE_VOLUME(0xffffffffffffffff, 0xc0044d01, &(0x7f0000000000)=0x14) [ 2177.075848] nbd: must specify a size in bytes for the device 20:10:13 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x2c, 0x0, 0x100, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '^\xfe.%\\]'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040050}, 0x20040000) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="240013f8", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) ioctl$SOUND_MIXER_WRITE_VOLUME(0xffffffffffffffff, 0xc0044d01, &(0x7f0000000000)=0x14) 20:10:13 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$nbd(&(0x7f0000000140), r0) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000000)) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0000000900000000000000400001e2"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000000)) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000100)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0000000900000000000000400001e2"], 0x34}}, 0x0) (async) 20:10:13 executing program 3: 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$nbd(&(0x7f0000000140), r0) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x30, 0x0, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}]}, 0x30}, 0x1, 0x0, 0x0, 0x44040}, 0xc00) [ 2177.117127] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2177.147732] nbd: must specify a device to reconfigure [ 2177.154031] nbd: couldn't find a device at index 32 20:10:13 executing program 1: sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x30, 0x0, 0x200, 0x70bd27, 0x25dfdbfe, {}, [@L2TP_ATTR_PROTO_VERSION={0x5, 0x7, 0x3}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'ipvlan0\x00'}]}, 0x30}, 0x1, 0x0, 0x0, 0x20000040}, 0x8094) (async) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:13 executing program 2: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) read$FUSE(0xffffffffffffffff, &(0x7f0000002840)={0x2020}, 0xffffffffffffffdd) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)=ANY=[@ANYBLOB='p\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000428bd7000ffdbdf25050000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080001005e5382429ea3f8b197ac57", @ANYRES32=r4, @ANYBLOB="08000a006e6264000c000300330a0000000000000c00050008000000000000000800010000000000"], 0x70}, 0x1, 0x0, 0x0, 0x84}, 0x40) r5 = syz_open_procfs(0x0, &(0x7f0000000140)='net/rpc\x00') r6 = syz_open_procfs(0x0, &(0x7f0000000180)='cpuset\x00') bpf$MAP_CREATE(0x0, &(0x7f0000000300)=@base={0xe, 0x6, 0x1, 0xfffffff9, 0x4ec, r5, 0xf98b, '\x00', 0x0, r6, 0x4, 0x0, 0x3}, 0x48) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24009df7", @ANYRES16=r8, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) getsockname$packet(r3, &(0x7f0000000380)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @dev}, &(0x7f00000003c0)=0x14) 20:10:13 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x2c, 0x0, 0x100, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '^\xfe.%\\]'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040050}, 0x20040000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="240013f8", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) ioctl$SOUND_MIXER_WRITE_VOLUME(0xffffffffffffffff, 0xc0044d01, &(0x7f0000000000)=0x14) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x2c, 0x0, 0x100, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, '^\xfe.%\\]'}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040050}, 0x20040000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="240013f8", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) ioctl$SOUND_MIXER_WRITE_VOLUME(0xffffffffffffffff, 0xc0044d01, &(0x7f0000000000)=0x14) (async) [ 2177.232658] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2177.268606] nbd: must specify a device to reconfigure 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16=r0, @ANYRES8=r0], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) write$FUSE_INTERRUPT(r1, &(0x7f0000000040)={0x10}, 0x10) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:14 executing program 2: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) read$FUSE(0xffffffffffffffff, &(0x7f0000002840)={0x2020}, 0xffffffffffffffdd) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) (async, rerun: 32) pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) (rerun: 32) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)=ANY=[@ANYBLOB='p\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000428bd7000ffdbdf25050000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080001005e5382429ea3f8b197ac57", @ANYRES32=r4, @ANYBLOB="08000a006e6264000c000300330a0000000000000c00050008000000000000000800010000000000"], 0x70}, 0x1, 0x0, 0x0, 0x84}, 0x40) (async) r5 = syz_open_procfs(0x0, &(0x7f0000000140)='net/rpc\x00') (async) r6 = syz_open_procfs(0x0, &(0x7f0000000180)='cpuset\x00') bpf$MAP_CREATE(0x0, &(0x7f0000000300)=@base={0xe, 0x6, 0x1, 0xfffffff9, 0x4ec, r5, 0xf98b, '\x00', 0x0, r6, 0x4, 0x0, 0x3}, 0x48) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24009df7", @ANYRES16=r8, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) getsockname$packet(r3, &(0x7f0000000380)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @dev}, &(0x7f00000003c0)=0x14) 20:10:14 executing program 5: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000040)={0x3, &(0x7f0000000000)=[{0xfd3, 0x9, 0x7, 0x1000}, {0x8, 0x4, 0x7f, 0x1}, {0x9, 0x1, 0x40, 0x2}]}) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000180)={0x0}) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r0, 0xc0182101, &(0x7f0000000100)={r1, 0x7f, 0x9}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB, @ANYRES16, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2177.285394] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2177.295479] nbd: must specify a device to reconfigure 20:10:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x4000400}, 0x0) 20:10:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x30, 0x0, 0x4, 0x70bd25, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @broadcast}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}]}, 0x30}, 0x1, 0x0, 0x0, 0x44040}, 0xc00) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16=r0, @ANYRES8=r0], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) write$FUSE_INTERRUPT(r1, &(0x7f0000000040)={0x10}, 0x10) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16=r0, @ANYRES8=r0], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) openat$cuse(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) (async) write$FUSE_INTERRUPT(r1, &(0x7f0000000040)={0x10}, 0x10) (async) 20:10:14 executing program 5: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000040)={0x3, &(0x7f0000000000)=[{0xfd3, 0x9, 0x7, 0x1000}, {0x8, 0x4, 0x7f, 0x1}, {0x9, 0x1, 0x40, 0x2}]}) (async) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000180)={0x0}) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r0, 0xc0182101, &(0x7f0000000100)={r1, 0x7f, 0x9}) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB, @ANYRES16, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:14 executing program 3: r0 = syz_init_net_socket$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(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x49000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x3c, r4, 0x0, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000000}, 0x4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[], 0x34}}, 0x0) 20:10:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x4000400}, 0x0) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:14 executing program 2: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) read$FUSE(0xffffffffffffffff, &(0x7f0000002840)={0x2020}, 0xffffffffffffffdd) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)=ANY=[@ANYBLOB='p\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000428bd7000ffdbdf25050000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080001005e5382429ea3f8b197ac57", @ANYRES32=r4, @ANYBLOB="08000a006e6264000c000300330a0000000000000c00050008000000000000000800010000000000"], 0x70}, 0x1, 0x0, 0x0, 0x84}, 0x40) r5 = syz_open_procfs(0x0, &(0x7f0000000140)='net/rpc\x00') r6 = syz_open_procfs(0x0, &(0x7f0000000180)='cpuset\x00') bpf$MAP_CREATE(0x0, &(0x7f0000000300)=@base={0xe, 0x6, 0x1, 0xfffffff9, 0x4ec, r5, 0xf98b, '\x00', 0x0, r6, 0x4, 0x0, 0x3}, 0x48) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24009df7", @ANYRES16=r8, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) getsockname$packet(r3, &(0x7f0000000380)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @dev}, &(0x7f00000003c0)=0x14) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r0, 0x0, 0x0) (async) read$FUSE(0xffffffffffffffff, &(0x7f0000002840)={0x2020}, 0xffffffffffffffdd) (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$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r3, 0x0, 0x0) (async) pipe(&(0x7f0000000080)) (async) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)=ANY=[@ANYBLOB='p\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000428bd7000ffdbdf25050000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080001005e5382429ea3f8b197ac57", @ANYRES32=r4, @ANYBLOB="08000a006e6264000c000300330a0000000000000c00050008000000000000000800010000000000"], 0x70}, 0x1, 0x0, 0x0, 0x84}, 0x40) (async) syz_open_procfs(0x0, &(0x7f0000000140)='net/rpc\x00') (async) syz_open_procfs(0x0, &(0x7f0000000180)='cpuset\x00') (async) bpf$MAP_CREATE(0x0, &(0x7f0000000300)=@base={0xe, 0x6, 0x1, 0xfffffff9, 0x4ec, r5, 0xf98b, '\x00', 0x0, r6, 0x4, 0x0, 0x3}, 0x48) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24009df7", @ANYRES16=r8, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) getsockname$packet(r3, &(0x7f0000000380)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @dev}, &(0x7f00000003c0)=0x14) (async) 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16=r0, @ANYRES8=r0], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) r1 = openat$cuse(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) write$FUSE_INTERRUPT(r1, &(0x7f0000000040)={0x10}, 0x10) 20:10:14 executing program 5: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x8, &(0x7f0000000040)={0x3, &(0x7f0000000000)=[{0xfd3, 0x9, 0x7, 0x1000}, {0x8, 0x4, 0x7f, 0x1}, {0x9, 0x1, 0x40, 0x2}]}) ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000180)={0x0}) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r0, 0xc0182101, &(0x7f0000000100)={r1, 0x7f, 0x9}) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB, @ANYRES16, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:14 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$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x49000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x3c, r4, 0x0, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000000}, 0x4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[], 0x34}}, 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$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x49000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x3c, r4, 0x0, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000000}, 0x4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[], 0x34}}, 0x0) (async) 20:10:14 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x4000400}, 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$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}, 0x1, 0x0, 0x0, 0x4000400}, 0x0) (async) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x28, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}]}, 0x28}}, 0x0) 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_DEL_TX_TS(r2, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r3, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f00000003c0)={0x88, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {{}, {@val={0x8}, @val={0xc, 0x99, {0x654b820a, 0x27}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x2a}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x43}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x46}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x78}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x2c}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x12}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x9}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x72}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000000}, 0x200000c0) 20:10:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, 0x0, 0x200, 0x70bd28, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x24}, 0x1, 0x0, 0x0, 0x884}, 0x80c8) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r5, 0x2, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}]}, 0x28}, 0x1, 0x0, 0x0, 0x4044}, 0x20000081) 20:10:14 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$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x49000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x3c, r4, 0x0, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @empty}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x21}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000000}, 0x4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r5) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[], 0x34}}, 0x0) 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async, rerun: 64) r2 = socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r3 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_DEL_TX_TS(r2, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r3, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f00000003c0)={0x88, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {{}, {@val={0x8}, @val={0xc, 0x99, {0x654b820a, 0x27}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x2a}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x43}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x46}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x78}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x2c}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x12}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x9}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x72}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000000}, 0x200000c0) 20:10:14 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(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x50, r4, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x2d}}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x4040000}, 0x2088000) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 20:10:14 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r5, 0x2, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}]}, 0x28}, 0x1, 0x0, 0x0, 0x4044}, 0x20000081) 20:10:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, 0x0, 0x200, 0x70bd28, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x24}, 0x1, 0x0, 0x0, 0x884}, 0x80c8) (async, rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB="3400000095e82bd739d5b0914a25771fcbbe63d15ec82e3a04a87693092939d475f8ddf8ea16fc0985c90000000000000000d30ed00b80ef385144202fdc550d54de7ed276cb8405922428c50cf8cc9c6351f473bdf222fee6bd576863529885c7f8fff0802749dccaa1937941d1624edf3dddf100ac3ec592d8e0e3d3e1c7d2667d56c3b6b0b037aba5b86328f7dbbdf3f76ed94e35b16094fa70a996c60bb8d51241d2f90867df2ae3835c9a9870003dc58fc70aff91b0756fee6bec1385575e4939efbe1d00966a76951d77d27d13ecebca32df0334e72637f1464ae05631f95d77848a7cc68fd637f6d36234", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_DEL_TX_TS(r2, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r3, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) (async) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f00000003c0)={0x88, r3, 0x400, 0x70bd2a, 0x25dfdbfb, {{}, {@val={0x8}, @val={0xc, 0x99, {0x654b820a, 0x27}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x2a}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x43}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x46}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x78}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x2c}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x12}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x9}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x72}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000000}, 0x200000c0) 20:10:14 executing program 5: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x50, r4, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x2d}}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x4040000}, 0x2088000) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x50, r4, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x2d}}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x4040000}, 0x2088000) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x14, r1, 0x1}, 0x14}}, 0x0) [ 2177.925082] nbd: couldn't find a device at index 0 20:10:14 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r5, 0x2, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}]}, 0x28}, 0x1, 0x0, 0x0, 0x4044}, 0x20000081) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) (async) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x28, r5, 0x2, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}]}, 0x28}, 0x1, 0x0, 0x0, 0x4044}, 0x20000081) (async) 20:10:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x24, 0x0, 0x200, 0x70bd28, 0x25dfdbff, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @loopback}]}, 0x24}, 0x1, 0x0, 0x0, 0x884}, 0x80c8) (rerun: 32) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xfff, "a5ec3371e8496305c082c812df8425dae9937a3fdd56565a7eb3cd541fb4692e"}) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x800, 0x70bd28, 0x25dfdbfd, {}, [@L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @local}]}, 0x24}, 0x1, 0x0, 0x0, 0x15}, 0x40000) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x14, r1, 0x1}, 0x14}}, 0x0) 20:10:14 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB="3400000095e82bd739d5b0914a25771fcbbe63d15ec82e3a04a87693092939d475f8ddf8ea16fc0985c90000000000000000d30ed00b80ef385144202fdc550d54de7ed276cb8405922428c50cf8cc9c6351f473bdf222fee6bd576863529885c7f8fff0802749dccaa1937941d1624edf3dddf100ac3ec592d8e0e3d3e1c7d2667d56c3b6b0b037aba5b86328f7dbbdf3f76ed94e35b16094fa70a996c60bb8d51241d2f90867df2ae3835c9a9870003dc58fc70aff91b0756fee6bec1385575e4939efbe1d00966a76951d77d27d13ecebca32df0334e72637f1464ae05631f95d77848a7cc68fd637f6d36234", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) [ 2178.016465] nbd: couldn't find a device at index 0 20:10:14 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:14 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, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x50, r4, 0x100, 0x70bd29, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x1f}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x22}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_CV4DOI={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x2d}}, @NLBL_MGMT_A_DOMAIN={0x5, 0x1, '\x00'}]}, 0x50}, 0x1, 0x0, 0x0, 0x4040000}, 0x2088000) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xfff, "a5ec3371e8496305c082c812df8425dae9937a3fdd56565a7eb3cd541fb4692e"}) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x800, 0x70bd28, 0x25dfdbfd, {}, [@L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @local}]}, 0x24}, 0x1, 0x0, 0x0, 0x15}, 0x40000) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xfff, "a5ec3371e8496305c082c812df8425dae9937a3fdd56565a7eb3cd541fb4692e"}) (async) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x800, 0x70bd28, 0x25dfdbfd, {}, [@L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @local}]}, 0x24}, 0x1, 0x0, 0x0, 0x15}, 0x40000) (async) 20:10:14 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x78, 0x0, 0x10, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x401}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ']'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}]}, 0x78}, 0x1, 0x0, 0x0, 0x24004881}, 0x801) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="24000000f6adac5c8a653acbb189d546dd550237477891022b5d226148d53137a5241b641fcceb97ecff77c63c9a63", @ANYRES16=r4, @ANYBLOB="0100000008000000000001000021040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:14 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB="3400000095e82bd739d5b0914a25771fcbbe63d15ec82e3a04a87693092939d475f8ddf8ea16fc0985c90000000000000000d30ed00b80ef385144202fdc550d54de7ed276cb8405922428c50cf8cc9c6351f473bdf222fee6bd576863529885c7f8fff0802749dccaa1937941d1624edf3dddf100ac3ec592d8e0e3d3e1c7d2667d56c3b6b0b037aba5b86328f7dbbdf3f76ed94e35b16094fa70a996c60bb8d51241d2f90867df2ae3835c9a9870003dc58fc70aff91b0756fee6bec1385575e4939efbe1d00966a76951d77d27d13ecebca32df0334e72637f1464ae05631f95d77848a7cc68fd637f6d36234", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB="3400000095e82bd739d5b0914a25771fcbbe63d15ec82e3a04a87693092939d475f8ddf8ea16fc0985c90000000000000000d30ed00b80ef385144202fdc550d54de7ed276cb8405922428c50cf8cc9c6351f473bdf222fee6bd576863529885c7f8fff0802749dccaa1937941d1624edf3dddf100ac3ec592d8e0e3d3e1c7d2667d56c3b6b0b037aba5b86328f7dbbdf3f76ed94e35b16094fa70a996c60bb8d51241d2f90867df2ae3835c9a9870003dc58fc70aff91b0756fee6bec1385575e4939efbe1d00966a76951d77d27d13ecebca32df0334e72637f1464ae05631f95d77848a7cc68fd637f6d36234", @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) 20:10:14 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x14, r1, 0x1}, 0x14}}, 0x0) 20:10:14 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xfff, "a5ec3371e8496305c082c812df8425dae9937a3fdd56565a7eb3cd541fb4692e"}) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x800, 0x70bd28, 0x25dfdbfd, {}, [@L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @local}]}, 0x24}, 0x1, 0x0, 0x0, 0x15}, 0x40000) socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) (async) ioctl$SW_SYNC_IOC_CREATE_FENCE(0xffffffffffffffff, 0xc0285700, &(0x7f0000000100)={0xfff, "a5ec3371e8496305c082c812df8425dae9937a3fdd56565a7eb3cd541fb4692e"}) (async) sendmsg$L2TP_CMD_NOOP(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x24, 0x0, 0x800, 0x70bd28, 0x25dfdbfd, {}, [@L2TP_ATTR_UDP_CSUM={0x5, 0xd, 0x1}, @L2TP_ATTR_IP_DADDR={0x8, 0x19, @local}]}, 0x24}, 0x1, 0x0, 0x0, 0x15}, 0x40000) (async) 20:10:14 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRES16=r0], 0x34}, 0x1, 0x0, 0x0, 0x4000010}, 0x0) [ 2178.182603] nbd: couldn't find a device at index 0 20:10:14 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="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", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:15 executing program 0: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) read$FUSE(0xffffffffffffffff, &(0x7f0000002840)={0x2020}, 0xffffffffffffffdd) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)=ANY=[@ANYBLOB='p\x00\x00\x00', @ANYRES16=0x0, @ANYBLOB="000428bd7000ffdbdf25050000003400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32=r3, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="080001005e5382429ea3f8b197ac57", @ANYRES32=r4, @ANYBLOB="08000a006e6264000c000300330a0000000000000c00050008000000000000000800010000000000"], 0x70}, 0x1, 0x0, 0x0, 0x84}, 0x40) r5 = syz_open_procfs(0x0, &(0x7f0000000140)='net/rpc\x00') r6 = syz_open_procfs(0x0, &(0x7f0000000180)='cpuset\x00') bpf$MAP_CREATE(0x0, &(0x7f0000000300)=@base={0xe, 0x6, 0x1, 0xfffffff9, 0x4ec, r5, 0xf98b, '\x00', 0x0, r6, 0x4, 0x0, 0x3}, 0x48) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r7) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24009df7", @ANYRES16=r8, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) getsockname$packet(r3, &(0x7f0000000380)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @dev}, &(0x7f00000003c0)=0x14) 20:10:15 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$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000f76ab1748c6ee7027b37018d00", @ANYRESOCT=0x0, @ANYRES64=r3], 0x34}}, 0x0) r4 = getegid() setregid(0x0, r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = getegid() setregid(r6, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000340)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000380)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000480)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000440)={&(0x7f00000003c0)={0x58, r8, 0x1, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x88}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x20008001}, 0x0) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000001c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="300000001e25a0dfb9488eea68007776ad018a31c818a31695110a2a48a2b18438a6dd01f0669a373fe5846e18b6cd0d74ed87ae43fb1ed7a48242687d40beea4fd874ebf9100b6f51805750380d5dde247c112a96edf5af2f937cd8", @ANYRES16=r11, @ANYBLOB="000125020000000c000600030000000000000005000a0013546b68ef9f6929be3edaf2a52e00000007000a00bc2c2300"], 0x30}, 0x1, 0x0, 0x0, 0xa0}, 0x0) 20:10:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRES16=r0], 0x34}, 0x1, 0x0, 0x0, 0x4000010}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRES16=r0], 0x34}, 0x1, 0x0, 0x0, 0x4000010}, 0x0) (async) 20:10:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x78, 0x0, 0x10, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x401}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ']'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}]}, 0x78}, 0x1, 0x0, 0x0, 0x24004881}, 0x801) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="24000000f6adac5c8a653acbb189d546dd550237477891022b5d226148d53137a5241b641fcceb97ecff77c63c9a63", @ANYRES16=r4, @ANYBLOB="0100000008000000000001000021040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:15 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x5c, r2, 0x4, 0x70bd25, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5, 0x21, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0xffff}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x4}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_UDP_CSUM={0x5}]}, 0x5c}, 0x1, 0x0, 0x0, 0x400c0c1}, 0x20000011) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:15 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000300)=ANY=[@ANYBLOB="26000000ec6a636a923e4ff1db82b3ab922a1fca16853261aead12f7711e52615d80f7ed698f0c63cc9791f72b45410048128b7c41caeefbac5958bd3781c30ed966f7ffbfd5484d4060946af6ac5b6e4c3572012d06414e60d1a643e63e0faa00a920bd2d9b6f807257a1dc68c48bbc6942d08d662ba76b65c2b07d7d640095041966b158b2facf5a84379e2a4b76e34deb7998d826c5968002f72b7f077b389d5ea062cedf2a019a206241bbd5808776247648c42e81569848fecc5d19f9e7f314b36d046fd975740213178b1e3ec11d2517845cca1c28206cf8023172ee4620117141d6f44a785e0c97f6742413c6f777efd495679fb7a31a076d4ffe2cc97fd500e6fb290a06dd20428d8ea87f6d18f0c85bdca9462b935dba3a0ba39fc104878a7fbd1e8cdd73a3991b1664ef471298a3d8ef4c77ea94b3aea267ddd2ecb4b2c58bd81dad805f5a20c523fed4dc0eb33ae85dd8ecf755a243f1a9fe5ffb6f35d9c6940acf8cff2672a4377454ecd9a7de004643605b", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) [ 2178.363587] nbd: must specify a device to reconfigure 20:10:15 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$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000f76ab1748c6ee7027b37018d00", @ANYRESOCT=0x0, @ANYRES64=r3], 0x34}}, 0x0) r4 = getegid() setregid(0x0, r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = getegid() setregid(r6, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000340)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000380)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000480)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000440)={&(0x7f00000003c0)={0x58, r8, 0x1, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x88}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x20008001}, 0x0) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000001c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="300000001e25a0dfb9488eea68007776ad018a31c818a31695110a2a48a2b18438a6dd01f0669a373fe5846e18b6cd0d74ed87ae43fb1ed7a48242687d40beea4fd874ebf9100b6f51805750380d5dde247c112a96edf5af2f937cd8", @ANYRES16=r11, @ANYBLOB="000125020000000c000600030000000000000005000a0013546b68ef9f6929be3edaf2a52e00000007000a00bc2c2300"], 0x30}, 0x1, 0x0, 0x0, 0xa0}, 0x0) syz_init_net_socket$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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000f76ab1748c6ee7027b37018d00", @ANYRESOCT=0x0, @ANYRES64=r3], 0x34}}, 0x0) (async) getegid() (async) setregid(0x0, r4) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) getegid() (async) setregid(r6, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000340)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000380)) (async) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000480)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000440)={&(0x7f00000003c0)={0x58, r8, 0x1, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x88}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x20008001}, 0x0) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000001c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="300000001e25a0dfb9488eea68007776ad018a31c818a31695110a2a48a2b18438a6dd01f0669a373fe5846e18b6cd0d74ed87ae43fb1ed7a48242687d40beea4fd874ebf9100b6f51805750380d5dde247c112a96edf5af2f937cd8", @ANYRES16=r11, @ANYBLOB="000125020000000c000600030000000000000005000a0013546b68ef9f6929be3edaf2a52e00000007000a00bc2c2300"], 0x30}, 0x1, 0x0, 0x0, 0xa0}, 0x0) (async) 20:10:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0) 20:10:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x78, 0x0, 0x10, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x401}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ']'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}]}, 0x78}, 0x1, 0x0, 0x0, 0x24004881}, 0x801) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="24000000f6adac5c8a653acbb189d546dd550237477891022b5d226148d53137a5241b641fcceb97ecff77c63c9a63", @ANYRES16=r4, @ANYBLOB="0100000008000000000001000021040007800c0002000000000000000000"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r2, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x78, 0x0, 0x10, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x401}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, ']'}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1}]}, 0x78}, 0x1, 0x0, 0x0, 0x24004881}, 0x801) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000080)=ANY=[@ANYBLOB="24000000f6adac5c8a653acbb189d546dd550237477891022b5d226148d53137a5241b641fcceb97ecff77c63c9a63", @ANYRES16=r4, @ANYBLOB="0100000008000000000001000021040007800c0002000000000000000000"], 0x24}}, 0x0) (async) 20:10:15 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) (rerun: 32) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x5c, r2, 0x4, 0x70bd25, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5, 0x21, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0xffff}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x4}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_UDP_CSUM={0x5}]}, 0x5c}, 0x1, 0x0, 0x0, 0x400c0c1}, 0x20000011) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=ANY=[@ANYRES16=r0], 0x34}, 0x1, 0x0, 0x0, 0x4000010}, 0x0) 20:10:15 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x60, 0x0, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x81, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}]}, 0x60}, 0x1, 0x0, 0x0, 0x4000040}, 0x4008040) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, r4, 0x20, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x4000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x28, r2, 0x4, 0x0, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5b}]}, 0x28}}, 0x800) 20:10:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:15 executing program 5: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) ioctl$BLKROSET(r0, 0x125d, &(0x7f0000000240)=0xffffffffffffffff) r1 = syz_init_net_socket$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) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="82708152", @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c00051d01040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) ioctl$MEDIA_IOC_DEVICE_INFO(r5, 0xc1007c00, &(0x7f0000000140)) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) 20:10:15 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$nbd(&(0x7f0000000100), r1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x60, 0x0, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x81, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}]}, 0x60}, 0x1, 0x0, 0x0, 0x4000040}, 0x4008040) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, r4, 0x20, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x4000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x28, r2, 0x4, 0x0, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5b}]}, 0x28}}, 0x800) [ 2178.483004] nbd: must specify a device to reconfigure 20:10:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = socket(0x2, 0xa, 0x0) ioctl$sock_inet6_udp_SIOCINQ(r2, 0x541b, &(0x7f0000000100)) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24c6d8d8", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x408000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x64, r3, 0x20, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '):'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}]}, 0x64}, 0x1, 0x0, 0x0, 0x10000805}, 0x2000c081) 20:10:15 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=ANY=[@ANYBLOB="340000f76ab1748c6ee7027b37018d00", @ANYRESOCT=0x0, @ANYRES64=r3], 0x34}}, 0x0) r4 = getegid() setregid(0x0, r4) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r6 = getegid() setregid(r6, 0x0) (async) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r1) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000340)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000380)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000480)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000440)={&(0x7f00000003c0)={0x58, r8, 0x1, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x88}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x20008001}, 0x0) (async) r11 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000001c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="300000001e25a0dfb9488eea68007776ad018a31c818a31695110a2a48a2b18438a6dd01f0669a373fe5846e18b6cd0d74ed87ae43fb1ed7a48242687d40beea4fd874ebf9100b6f51805750380d5dde247c112a96edf5af2f937cd8", @ANYRES16=r11, @ANYBLOB="000125020000000c000600030000000000000005000a0013546b68ef9f6929be3edaf2a52e00000007000a00bc2c2300"], 0x30}, 0x1, 0x0, 0x0, 0xa0}, 0x0) 20:10:15 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r1, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r2, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x5c, r2, 0x4, 0x70bd25, 0x25dfdbff, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5, 0x21, 0x1}, @L2TP_ATTR_PEER_COOKIE={0xc, 0x10, 0xffff}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @mcast2}, @L2TP_ATTR_L2SPEC_LEN={0x5, 0x6, 0x4}, @L2TP_ATTR_UDP_SPORT={0x6, 0x1a, 0x4e23}, @L2TP_ATTR_UDP_ZERO_CSUM6_RX={0x5}, @L2TP_ATTR_UDP_CSUM={0x5}]}, 0x5c}, 0x1, 0x0, 0x0, 0x400c0c1}, 0x20000011) (async) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xffb4, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='fd\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x1c, 0x0, 0x8, 0x70bd26, 0x25dfdbfb, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x2}]}, 0x1c}, 0x1, 0x0, 0x0, 0x24002055}, 0x8004) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x5c, 0x0, 0x1, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xffffffffffffff81}]}, 0x5c}, 0x1, 0x0, 0x0, 0xa0}, 0x4080) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:15 executing program 5: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) ioctl$BLKROSET(r0, 0x125d, &(0x7f0000000240)=0xffffffffffffffff) (async) r1 = syz_init_net_socket$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) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="82708152", @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c00051d01040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) ioctl$MEDIA_IOC_DEVICE_INFO(r5, 0xc1007c00, &(0x7f0000000140)) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) 20:10:15 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$nbd(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x60, 0x0, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x81, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}]}, 0x60}, 0x1, 0x0, 0x0, 0x4000040}, 0x4008040) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, r4, 0x20, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x4000) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x28, r2, 0x4, 0x0, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5b}]}, 0x28}}, 0x800) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r0, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f0000000140)={&(0x7f0000000080)={0x60, 0x0, 0x200, 0x70bd2d, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @remote}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x81, 0x0}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast2}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2b}]}, 0x60}, 0x1, 0x0, 0x0, 0x4000040}, 0x4008040) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_LISTDEF(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f0000000240)={&(0x7f0000000200)={0x14, r4, 0x20, 0x70bd29, 0x25dfdbfb}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x4000) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x28, r2, 0x4, 0x0, 0x0, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5b}]}, 0x28}}, 0x800) (async) 20:10:15 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: 64) r2 = socket(0x2, 0xa, 0x0) (rerun: 64) ioctl$sock_inet6_udp_SIOCINQ(r2, 0x541b, &(0x7f0000000100)) (async) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) (async, rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24c6d8d8", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async, rerun: 32) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x408000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x64, r3, 0x20, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '):'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}]}, 0x64}, 0x1, 0x0, 0x0, 0x10000805}, 0x2000c081) 20:10:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x8000}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000340)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x3c, r2, 0x100, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4814}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="000448bd7000fedbdf250200000008000100000000000c000400ff7f0000000000000c00050000010000000000000c00040002000000c7827f9e0f7987350100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x14}, 0x10) 20:10:15 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809ff6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x40019) 20:10:15 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) 20:10:15 executing program 5: pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) (async) ioctl$BLKROSET(r0, 0x125d, &(0x7f0000000240)=0xffffffffffffffff) (async) r1 = syz_init_net_socket$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) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000040), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="82708152", @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c00051d01040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) ioctl$MEDIA_IOC_DEVICE_INFO(r5, 0xc1007c00, &(0x7f0000000140)) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) 20:10:15 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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x8000}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000340)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x3c, r2, 0x100, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4814}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="000448bd7000fedbdf250200000008000100000000000c000400ff7f0000000000000c00050000010000000000000c00040002000000c7827f9e0f7987350100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x14}, 0x10) 20:10:15 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01ee3369040007800c000200"/30], 0x24}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, r4, 0x8, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7ff}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20004085}, 0x40) 20:10:15 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809ff6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x40019) 20:10:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000000)={0x0, 0x12, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x3, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x44, 0x0, 0x9a2, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x16}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x39}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}]}, 0x44}}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c92a4ce332f54060d82b5e120e600250001040200000000000c00"], 0x34}}, 0x40800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r5) sendmsg$NBD_CMD_STATUS(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x2c, r6, 0x200, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7ff}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8040}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000003c0)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, r4, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x800) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r9) r10 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r10, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_NOOP(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)={0x24, r10, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@L2TP_ATTR_MTU={0x6, 0x1c, 0x7fff}, @L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}]}, 0x24}, 0x1, 0x0, 0x0, 0x4080000}, 0x8c1) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000004c0)={&(0x7f0000000640)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="01002bbd7000fcdbdfea822c63b0198f35250600000008000400ffffffff0800040000000000"], 0x24}, 0x1, 0x0, 0x0, 0x20000000}, 0x10001) 20:10:15 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = socket(0x2, 0xa, 0x0) ioctl$sock_inet6_udp_SIOCINQ(r2, 0x541b, &(0x7f0000000100)) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24c6d8d8", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x408000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x64, r3, 0x20, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '):'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}]}, 0x64}, 0x1, 0x0, 0x0, 0x10000805}, 0x2000c081) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socket(0x2, 0xa, 0x0) (async) ioctl$sock_inet6_udp_SIOCINQ(r2, 0x541b, &(0x7f0000000100)) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r0) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="24c6d8d8", @ANYRES16=r3, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x408000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000200)={0x64, r3, 0x20, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, '):'}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}]}, 0x64}, 0x1, 0x0, 0x0, 0x10000805}, 0x2000c081) (async) 20:10:15 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809ff6", @ANYRES16, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x40019) 20:10:15 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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[], 0x34}, 0x1, 0x0, 0x0, 0x8000}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000340)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x3c, r2, 0x100, 0x70bd2d, 0x25dfdbfe, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}]}, 0x3c}, 0x1, 0x0, 0x0, 0x4814}, 0x0) (async) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)=ANY=[@ANYBLOB='L\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="000448bd7000fedbdf250200000008000100000000000c000400ff7f0000000000000c00050000010000000000000c00040002000000c7827f9e0f7987350100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x14}, 0x10) [ 2178.845628] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. [ 2178.871206] nbd: must specify an index to disconnect 20:10:15 executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000000)='status\x00') read$FUSE(r0, &(0x7f0000000080)={0x2020}, 0x2020) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r1) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x1c, r5, 0x1, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x84800}, 0x4040000) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) ioctl$sock_bt_hci(r6, 0x400448de, &(0x7f0000000200)="3ac42a09c05c95e81179360e076fc36425d98263225865cf45754a57b610139baf9af4ed1c5d8a6c5b3884a7b11560966d15860cc4e74b265a90b90e14834fd0d5e041508dfba9f4521a003bc040e558412f3358f1e4cdca049ee186257dd4ee4e") 20:10:15 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01ee3369040007800c000200"/30], 0x24}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, r4, 0x8, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7ff}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20004085}, 0x40) 20:10:15 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x44, 0x0, 0x9a2, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x16}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x39}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}]}, 0x44}}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c92a4ce332f54060d82b5e120e600250001040200000000000c00"], 0x34}}, 0x40800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r5) sendmsg$NBD_CMD_STATUS(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x2c, r6, 0x200, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7ff}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8040}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000003c0)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, r4, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x800) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r9) r10 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r10, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_NOOP(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)={0x24, r10, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@L2TP_ATTR_MTU={0x6, 0x1c, 0x7fff}, @L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}]}, 0x24}, 0x1, 0x0, 0x0, 0x4080000}, 0x8c1) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000004c0)={&(0x7f0000000640)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="01002bbd7000fcdbdfea822c63b0198f35250600000008000400ffffffff0800040000000000"], 0x24}, 0x1, 0x0, 0x0, 0x20000000}, 0x10001) 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$nbd(&(0x7f0000000140), r0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x44, 0x0, 0x9a2, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x16}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x39}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}]}, 0x44}}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c92a4ce332f54060d82b5e120e600250001040200000000000c00"], 0x34}}, 0x40800) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r5) (async) sendmsg$NBD_CMD_STATUS(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x2c, r6, 0x200, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7ff}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8040}, 0x0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) (async) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000003c0)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, r4, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x800) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r9) (async) syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) (async) sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r10, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) (async) sendmsg$L2TP_CMD_NOOP(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)={0x24, r10, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@L2TP_ATTR_MTU={0x6, 0x1c, 0x7fff}, @L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}]}, 0x24}, 0x1, 0x0, 0x0, 0x4080000}, 0x8c1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000004c0)={&(0x7f0000000640)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="01002bbd7000fcdbdfea822c63b0198f35250600000008000400ffffffff0800040000000000"], 0x24}, 0x1, 0x0, 0x0, 0x20000000}, 0x10001) (async) [ 2178.924410] netlink: 32 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2178.951731] nbd: must specify a device to reconfigure 20:10:15 executing program 2: socket$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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r3 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='schedstat\x00') pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x78, r2, 0x100, 0x40, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x44, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '*'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x4085}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r0) 20:10:15 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x20004082) getegid() syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r3, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r4 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff) sendmsg$NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL(r3, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f0000000300)={0x58, r4, 0x800, 0x70bd29, 0x25dfdbfc, {{}, {@val={0x8}, @val={0xc, 0x99, {0x5, 0x2}}}}, [@NL80211_ATTR_COOKIE={0xc, 0x58, 0x10}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x79}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x26}, @NL80211_ATTR_COOKIE={0xc, 0x58, 0x4e}]}, 0x58}}, 0x4000) ioctl$MEDIA_IOC_ENUM_LINKS(0xffffffffffffffff, 0xc0287c02, &(0x7f00000000c0)={0x80000000, &(0x7f0000000080), &(0x7f0000000140)}) [ 2178.990194] nbd: must specify a device to reconfigure 20:10:15 executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) setsockopt$bt_hci_HCI_TIME_STAMP(r2, 0x0, 0x3, &(0x7f0000000040)=0x10a, 0x4) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRESHEX=r1, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x24048090}, 0x18) r3 = openat$mixer(0xffffffffffffff9c, &(0x7f0000000080), 0x501000, 0x0) ioctl$mixer_OSS_GETVERSION(r3, 0x80044d76, &(0x7f00000000c0)) [ 2179.012343] nbd: couldn't find device at index 0 [ 2179.024573] netlink: 16 bytes leftover after parsing attributes in process `syz-executor.4'. 20:10:15 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0xbc, r2, 0x200, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x98}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x81}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '/'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfff}]}, 0xbc}, 0x1, 0x0, 0x0, 0xc000}, 0x41) 20:10:15 executing program 4: r0 = syz_init_net_socket$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(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="01ee3369040007800c000200"/30], 0x24}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x3c, r4, 0x8, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7ff}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20004085}, 0x40) 20:10:15 executing program 2: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) setsockopt$bt_hci_HCI_TIME_STAMP(r2, 0x0, 0x3, &(0x7f0000000040)=0x10a, 0x4) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000000)=ANY=[@ANYBLOB="26809fe6", @ANYRESHEX=r1, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x24048090}, 0x18) r3 = openat$mixer(0xffffffffffffff9c, &(0x7f0000000080), 0x501000, 0x0) ioctl$mixer_OSS_GETVERSION(r3, 0x80044d76, &(0x7f00000000c0)) 20:10:15 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) inotify_rm_watch(0xffffffffffffffff, 0x0) sendmsg$L2TP_CMD_SESSION_MODIFY(0xffffffffffffffff, &(0x7f0000000180)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x1c, 0x0, 0x100, 0x70bd2e, 0x25dfdbfe, {}, [@L2TP_ATTR_LNS_MODE={0x5}]}, 0x1c}, 0x1, 0x0, 0x0, 0x4008050}, 0x4000880) [ 2179.057566] nbd: must specify an index to disconnect [ 2179.070703] netlink: 32 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2179.087363] nbd: must specify a device to reconfigure 20:10:15 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r6, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r0) 20:10:15 executing program 5: r0 = syz_init_net_socket$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) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x44, 0x0, 0x9a2, 0x70bd25, 0x25dfdbfd, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @dev={0xfe, 0x80, '\x00', 0x16}}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @dev={0xac, 0x14, 0x14, 0x39}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}]}, 0x44}}, 0x10) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000540)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c92a4ce332f54060d82b5e120e600250001040200000000000c00"], 0x34}}, 0x40800) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r5) sendmsg$NBD_CMD_STATUS(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x2c, r6, 0x200, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7ff}]}, 0x2c}, 0x1, 0x0, 0x0, 0x8040}, 0x0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r7) (async) sendmsg$NLBL_MGMT_C_ADD(r7, &(0x7f00000003c0)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x1c, r4, 0x8, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_PROTOCOL={0x8, 0x2, 0x7}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x800) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r9) (async) r10 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r10, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) (async) sendmsg$L2TP_CMD_NOOP(0xffffffffffffffff, &(0x7f0000000600)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f00000005c0)={&(0x7f0000000580)={0x24, r10, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@L2TP_ATTR_MTU={0x6, 0x1c, 0x7fff}, @L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}]}, 0x24}, 0x1, 0x0, 0x0, 0x4080000}, 0x8c1) (async) sendmsg$NLBL_MGMT_C_LISTDEF(r9, &(0x7f0000000500)={&(0x7f0000000400)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f00000004c0)={&(0x7f0000000640)=ANY=[@ANYBLOB='$\x00\x00\x00', @ANYRES16=r8, @ANYBLOB="01002bbd7000fcdbdfea822c63b0198f35250600000008000400ffffffff0800040000000000"], 0x24}, 0x1, 0x0, 0x0, 0x20000000}, 0x10001) 20:10:15 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$netlbl_mgmt(&(0x7f0000006bc0), r1) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_LISTDEF(r1, &(0x7f0000000180)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x2000}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x1c, r3, 0x102, 0x70bd2a, 0x25dfdbfb, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @private=0xa010101}]}, 0x1c}, 0x1, 0x0, 0x0, 0x880}, 0x44081) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r5) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffff01}]}, 0x24}}, 0x0) [ 2179.168259] nbd: couldn't find a device at index 32 20:10:15 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0xbc, r2, 0x200, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x98}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x81}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '/'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfff}]}, 0xbc}, 0x1, 0x0, 0x0, 0xc000}, 0x41) 20:10:16 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x24, r2, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x8080) [ 2179.225578] netlink: 32 bytes leftover after parsing attributes in process `syz-executor.5'. [ 2179.248694] nbd: must specify a device to reconfigure [ 2179.266493] nbd: couldn't find a device at index 0 20:10:16 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$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYRES8=r3, @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r4) sendmsg$NLBL_MGMT_C_ADD(r4, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r5, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r1, &(0x7f0000000180)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x38, r5, 0x300, 0x70bd25, 0x25dfdbfb, {}, [@NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x10}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @remote}]}, 0x38}, 0x1, 0x0, 0x0, 0x800}, 0x8004) 20:10:16 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$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x6400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x40, r3, 0x200, 0x70bd29, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10001}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}]}, 0x40}, 0x1, 0x0, 0x0, 0x40000}, 0x40000) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$BLKBSZSET(r1, 0x40081271, &(0x7f00000000c0)) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESDEC=r0, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x80) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x80, r4, 0x100, 0x70bd29, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x80}, 0x1, 0x0, 0x0, 0x40044}, 0x40000) 20:10:16 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r6, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r0) 20:10:16 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x24, r2, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x8080) [ 2179.276345] nbd: must specify a size in bytes for the device [ 2179.299364] nbd: couldn't find a device at index 0 20:10:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x14, 0x0, 0x400, 0x70bd26, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x4000080}, 0xa2027ceffc82f7c8) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$l2tp(&(0x7f0000000500), 0xffffffffffffffff) sendmsg$L2TP_CMD_SESSION_GET(r2, &(0x7f0000000600)={&(0x7f00000004c0), 0xc, &(0x7f00000005c0)={&(0x7f0000000540)={0x30, r3, 0x1, 0x0, 0x0, {}, [@L2TP_ATTR_UDP_ZERO_CSUM6_TX={0x5}, @L2TP_ATTR_IFNAME={0x14, 0x8, 'veth0_vlan\x00'}]}, 0x30}}, 0x0) sendmsg$L2TP_CMD_TUNNEL_GET(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x58, r3, 0x10, 0x70bd2c, 0x25dfdbff, {}, [@L2TP_ATTR_DATA_SEQ={0x5, 0x4, 0x1}, @L2TP_ATTR_MTU={0x6, 0x1c, 0x6}, @L2TP_ATTR_UDP_DPORT={0x6, 0x1b, 0x4e24}, @L2TP_ATTR_L2SPEC_TYPE={0x5, 0x5, 0x1}, @L2TP_ATTR_SEND_SEQ={0x5, 0x13, 0x51}, @L2TP_ATTR_SESSION_ID={0x8, 0xb, 0x3}, @L2TP_ATTR_IP6_SADDR={0x14, 0x1f, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'}]}, 0x58}, 0x1, 0x0, 0x0, 0xc0}, 0x2404404d) 20:10:16 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000240)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0xbc, r2, 0x200, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x98}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x81}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_BACKEND_IDENTIFIER={0x5, 0xa, '/'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xfff}]}, 0xbc}, 0x1, 0x0, 0x0, 0xc000}, 0x41) [ 2179.368611] nbd: couldn't find a device at index 32 20:10:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x24, r2, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x8080) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x24, r2, 0x400, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x8080) (async) 20:10:16 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_procfs(0x0, &(0x7f0000002080)='net/tcp6\x00') read$FUSE(r1, &(0x7f0000000000)={0x2020, 0x0, 0x0, 0x0}, 0x2020) setuid(r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="14000000", @ANYRES16=r3, @ANYBLOB="01010002000000"], 0x14}}, 0x0) [ 2179.415601] nbd: couldn't find a device at index 0 20:10:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$BLKBSZSET(r1, 0x40081271, &(0x7f00000000c0)) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESDEC=r0, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x80) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async, rerun: 64) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x80, r4, 0x100, 0x70bd29, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x80}, 0x1, 0x0, 0x0, 0x40044}, 0x40000) (rerun: 64) 20:10:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r6, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r0) 20:10:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000140)={0x74, 0x0, 0x400, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}]}]}, 0x74}, 0x1, 0x0, 0x0, 0x20044009}, 0x4001) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = syz_open_procfs(0x0, &(0x7f0000000100)='projid_map\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)={0x7c, 0x0, 0x20, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6c}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x7c}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) ioctl$BLKPG(r6, 0x1269, &(0x7f00000004c0)={0x9, 0x2, 0x6d, &(0x7f0000000440)="f6ca9fb0ce88384a1b199be5b86323a0c9d3245109e15e564a908a35bc863873b61107caaeb2cdcdc123e5a2270c78d85bfd9a6f153b6e185ba4e7a3c675d2b05a06427870148037be8870f2165b5397691304571bb7e2ee9de743284fe53fcfdfa5feb6b0a9eafb4e7b29febe"}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="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"], 0x34}}, 0x40000) [ 2179.499871] nbd: couldn't find a device at index 32 20:10:16 executing program 4: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r5 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r5, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) sendmsg$NL80211_CMD_DEL_TX_TS(r5, &(0x7f0000000340)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x38, 0x0, 0x4, 0x70bd2d, 0x25dfdbfb, {{}, {@void, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_MAC={0xa}, @NL80211_ATTR_MAC={0xa}]}, 0x38}, 0x1, 0x0, 0x0, 0x4081}, 0x44000) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="4c000000c09d48898cef9d8592d6d1c8a6e4635c7fc243fa57c2ea55df881ee9e4b40e8e72f6a702056af59ac563492a159400bdc3d54049c81396a8f4893976c65cd979d73d696bd6338255dcfa698373b355e925b1e3514a13ba6c3ddc40168c9e764390e77c944dd62aefbebdf88855462c92a6fa9b20ebad633f2b57d76edb2372502e2c14a9222248f74c675f4d70ed017d53444af1e92600d795385c75342112e90e55724cdb85", @ANYRES16=r4, @ANYBLOB="000326bd7000fcdbdf25010000000c00020001000000000000000c000200010000000000008006000a005e1000000c00080004000000000000000c0004008100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x24008481}, 0x80) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) [ 2179.535833] nbd: couldn't find a device at index 0 20:10:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$BLKBSZSET(r1, 0x40081271, &(0x7f00000000c0)) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000200)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRESDEC=r0, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x80) (async, rerun: 64) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) sendmsg$NLBL_MGMT_C_ADD(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r2, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)={0x80, r4, 0x100, 0x70bd29, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @private0}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @broadcast}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_CLPDOI={0x8}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @empty}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x27}, @NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @local}]}, 0x80}, 0x1, 0x0, 0x0, 0x40044}, 0x40000) 20:10:16 executing program 2: pipe(&(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r0, 0x0, 0x0) write$FUSE_POLL(r0, &(0x7f0000000000)={0x18, 0xfffffffffffffff5, 0x0, {0x81}}, 0x18) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), r2) sendmsg$L2TP_CMD_SESSION_CREATE(r1, &(0x7f00000000c0)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000280)=ANY=[@ANYBLOB="26809fe6", @ANYRES16=r3, @ANYBLOB="000000000000000000000500000000001300d6000000"], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) 20:10:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r6, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:16 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) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = syz_open_procfs(0x0, &(0x7f0000000100)='projid_map\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)={0x7c, 0x0, 0x20, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6c}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x7c}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) ioctl$BLKPG(r6, 0x1269, &(0x7f00000004c0)={0x9, 0x2, 0x6d, &(0x7f0000000440)="f6ca9fb0ce88384a1b199be5b86323a0c9d3245109e15e564a908a35bc863873b61107caaeb2cdcdc123e5a2270c78d85bfd9a6f153b6e185ba4e7a3c675d2b05a06427870148037be8870f2165b5397691304571bb7e2ee9de743284fe53fcfdfa5feb6b0a9eafb4e7b29febe"}) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="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"], 0x34}}, 0x40000) 20:10:16 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$nbd(&(0x7f0000000140), r0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 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$nbd(&(0x7f0000000100), r4) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)={0x2c, r5, 0x4, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x15d}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) r5 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r5, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) (async) sendmsg$NL80211_CMD_DEL_TX_TS(r5, &(0x7f0000000340)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x38, 0x0, 0x4, 0x70bd2d, 0x25dfdbfb, {{}, {@void, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_MAC={0xa}, @NL80211_ATTR_MAC={0xa}]}, 0x38}, 0x1, 0x0, 0x0, 0x4081}, 0x44000) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="4c000000c09d48898cef9d8592d6d1c8a6e4635c7fc243fa57c2ea55df881ee9e4b40e8e72f6a702056af59ac563492a159400bdc3d54049c81396a8f4893976c65cd979d73d696bd6338255dcfa698373b355e925b1e3514a13ba6c3ddc40168c9e764390e77c944dd62aefbebdf88855462c92a6fa9b20ebad633f2b57d76edb2372502e2c14a9222248f74c675f4d70ed017d53444af1e92600d795385c75342112e90e55724cdb85", @ANYRES16=r4, @ANYBLOB="000326bd7000fcdbdf25010000000c00020001000000000000000c000200010000000000008006000a005e1000000c00080004000000000000000c0004008100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x24008481}, 0x80) (async) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) 20:10:16 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$nbd(&(0x7f0000000100), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2179.670034] nbd: couldn't find a device at index 0 20:10:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, 0x0, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r4 = syz_open_procfs(0x0, &(0x7f0000000100)='projid_map\x00') pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)={0x7c, 0x0, 0x20, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6c}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x7c}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) ioctl$BLKPG(r6, 0x1269, &(0x7f00000004c0)={0x9, 0x2, 0x6d, &(0x7f0000000440)="f6ca9fb0ce88384a1b199be5b86323a0c9d3245109e15e564a908a35bc863873b61107caaeb2cdcdc123e5a2270c78d85bfd9a6f153b6e185ba4e7a3c675d2b05a06427870148037be8870f2165b5397691304571bb7e2ee9de743284fe53fcfdfa5feb6b0a9eafb4e7b29febe"}) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="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"], 0x34}}, 0x40000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r2, 0x0, 0x0) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) (async) syz_open_procfs(0x0, &(0x7f0000000100)='projid_map\x00') (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r5, 0x0, 0x0) (async) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000400)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000340)={0x7c, 0x0, 0x20, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6c}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x7c}, 0x1, 0x0, 0x0, 0x4000000}, 0x80) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r6, 0x0, 0x0) (async) ioctl$BLKPG(r6, 0x1269, &(0x7f00000004c0)={0x9, 0x2, 0x6d, &(0x7f0000000440)="f6ca9fb0ce88384a1b199be5b86323a0c9d3245109e15e564a908a35bc863873b61107caaeb2cdcdc123e5a2270c78d85bfd9a6f153b6e185ba4e7a3c675d2b05a06427870148037be8870f2165b5397691304571bb7e2ee9de743284fe53fcfdfa5feb6b0a9eafb4e7b29febe"}) (async) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="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"], 0x34}}, 0x40000) (async) 20:10:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) r6 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/llc/core\x00') pipe(&(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:16 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$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) (async) r5 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r5, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) sendmsg$NL80211_CMD_DEL_TX_TS(r5, &(0x7f0000000340)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0x38, 0x0, 0x4, 0x70bd2d, 0x25dfdbfb, {{}, {@void, @void}}, [@NL80211_ATTR_MAC={0xa, 0x6, @broadcast}, @NL80211_ATTR_MAC={0xa}, @NL80211_ATTR_MAC={0xa}]}, 0x38}, 0x1, 0x0, 0x0, 0x4081}, 0x44000) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000380)=ANY=[@ANYBLOB="4c000000c09d48898cef9d8592d6d1c8a6e4635c7fc243fa57c2ea55df881ee9e4b40e8e72f6a702056af59ac563492a159400bdc3d54049c81396a8f4893976c65cd979d73d696bd6338255dcfa698373b355e925b1e3514a13ba6c3ddc40168c9e764390e77c944dd62aefbebdf88855462c92a6fa9b20ebad633f2b57d76edb2372502e2c14a9222248f74c675f4d70ed017d53444af1e92600d795385c75342112e90e55724cdb85", @ANYRES16=r4, @ANYBLOB="000326bd7000fcdbdf25010000000c00020001000000000000000c000200010000000000008006000a005e1000000c00080004000000000000000c0004008100000000000000"], 0x4c}, 0x1, 0x0, 0x0, 0x24008481}, 0x80) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async, rerun: 64) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) (rerun: 64) [ 2179.732721] nbd: couldn't find a device at index 32 20:10:16 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$netlbl_mgmt(&(0x7f0000006bc0), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB], 0x14}, 0x1, 0x0, 0x0, 0xc000}, 0x4080010) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="430eb1a2", @ANYRES16=r4, @ANYBLOB="752032567c14a497e9010025bd70009ca5694c030000000c00050001040200000000000c0003000900"], 0x34}}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r3) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r1) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000004c0)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0x4c, r7, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':*'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x4c}, 0x1, 0x0, 0x0, 0x4080}, 0x11) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x24, r8, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000000}, 0x884) 20:10:16 executing program 2: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x40, r4, 0x20, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1ff}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}]}]}, 0x40}}, 0x50) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2179.818900] nbd: couldn't find a device at index 0 20:10:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, 0x0, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:16 executing program 3: r0 = syz_init_net_socket$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_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x80) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)=ANY=[@ANYBLOB='d\x00a\x00', @ANYRES16=r3, @ANYBLOB="000125bd7000fedbdf25010000000800020007000000080002000500000008000700e000000114000600fc01000000000000000000000000000108000700ac1e000114000500fc0000000000000000000000000000010800080064010102"], 0x64}, 0x1, 0x0, 0x0, 0x40088}, 0x40) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) [ 2179.873671] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 20:10:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, 0x0, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) [ 2179.966057] nbd: couldn't find a device at index 0 20:10:16 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) r6 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/llc/core\x00') pipe(&(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:16 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$netlbl_mgmt(&(0x7f0000006bc0), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB], 0x14}, 0x1, 0x0, 0x0, 0xc000}, 0x4080010) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="430eb1a2", @ANYRES16=r4, @ANYBLOB="752032567c14a497e9010025bd70009ca5694c030000000c00050001040200000000000c0003000900"], 0x34}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r3) (async) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r1) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000004c0)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0x4c, r7, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':*'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x4c}, 0x1, 0x0, 0x0, 0x4080}, 0x11) (async) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x24, r8, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000000}, 0x884) 20:10:16 executing program 2: r0 = syz_init_net_socket$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$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r3) syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000001c0)={0x30, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x8, 0xa, 'nbd\x00'}]}, 0x30}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000180)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000140)={&(0x7f00000000c0)={0x40, r4, 0x20, 0x70bd26, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1ff}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}]}]}, 0x40}}, 0x50) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:16 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 32) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x80) (async, rerun: 32) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)=ANY=[@ANYBLOB='d\x00a\x00', @ANYRES16=r3, @ANYBLOB="000125bd7000fedbdf25010000000800020007000000080002000500000008000700e000000114000600fc01000000000000000000000000000108000700ac1e000114000500fc0000000000000000000000000000010800080064010102"], 0x64}, 0x1, 0x0, 0x0, 0x40088}, 0x40) (async, rerun: 32) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) [ 2179.992516] nbd: couldn't find a device at index 32 20:10:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x48, r3, 0x4, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @private=0xa010102}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x8040}, 0x854) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2180.065821] nbd: couldn't find a device at index 0 20:10:16 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r6, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:16 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$netlbl_mgmt(&(0x7f0000006bc0), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB], 0x14}, 0x1, 0x0, 0x0, 0xc000}, 0x4080010) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="430eb1a2", @ANYRES16=r4, @ANYBLOB="752032567c14a497e9010025bd70009ca5694c030000000c00050001040200000000000c0003000900"], 0x34}}, 0x0) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r3) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r1) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000004c0)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0x4c, r7, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':*'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x4c}, 0x1, 0x0, 0x0, 0x4080}, 0x11) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x24, r8, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000000}, 0x884) 20:10:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x48, r3, 0x4, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @private=0xa010102}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x8040}, 0x854) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:16 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) r6 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/llc/core\x00') pipe(&(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:16 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x0) (async) sendmsg$NLBL_MGMT_C_REMOVEDEF(r0, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000180)={&(0x7f0000000100)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB], 0x14}, 0x1, 0x0, 0x0, 0xc000}, 0x4080010) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB="430eb1a2", @ANYRES16=r4, @ANYBLOB="752032567c14a497e9010025bd70009ca5694c030000000c00050001040200000000000c0003000900"], 0x34}}, 0x0) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000000), r3) (async) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r5) (async) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r6) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r3) (async, rerun: 64) r7 = syz_genetlink_get_family_id$nbd(&(0x7f0000000500), r1) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f00000004c0)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000480)={&(0x7f00000003c0)={0x4c, r7, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0x6, 0xa, ':*'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_BACKEND_IDENTIFIER={0x4}]}, 0x4c}, 0x1, 0x0, 0x0, 0x4080}, 0x11) r8 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000240), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r5, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x24, r8, 0x0, 0x70bd26, 0x25dfdbfd, {}, [@NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x8}]}, 0x24}, 0x1, 0x0, 0x0, 0x20000000}, 0x884) [ 2180.178442] nbd: couldn't find a device at index 0 20:10:16 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_DOMAIN={0x6, 0x1, '\xcd\x00'}]}, 0x1c}}, 0x80) (async) sendmsg$NLBL_MGMT_C_ADD(r1, &(0x7f0000000100)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f0000000040)={&(0x7f0000000180)=ANY=[@ANYBLOB='d\x00a\x00', @ANYRES16=r3, @ANYBLOB="000125bd7000fedbdf25010000000800020007000000080002000500000008000700e000000114000600fc01000000000000000000000000000108000700ac1e000114000500fc0000000000000000000000000000010800080064010102"], 0x64}, 0x1, 0x0, 0x0, 0x40088}, 0x40) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:16 executing program 2: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r1) sendmsg$L2TP_CMD_SESSION_CREATE(r0, &(0x7f0000000300)={&(0x7f0000000240), 0xc, &(0x7f00000002c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="26809fe6", @ANYRES16, @ANYRES32=r0, @ANYRESOCT=r0, @ANYRES8=r1], 0x1c}, 0x1, 0x0, 0x0, 0x20048090}, 0x18) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r2) r4 = socket(0x25, 0x3, 0x3ff) r5 = socket(0x25, 0x1, 0x4) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000340)={0x5c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}]}]}, 0x5c}}, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r6, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r7, 0x0, 0x0) r8 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='net/ip6_tables_targets\x00') r9 = socket(0x21, 0x4, 0x7c000) r10 = socket(0x28, 0x4, 0x8) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x804a0400}, 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0xa0, r3, 0x1, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x76}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xa0}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) r11 = add_key$keyring(&(0x7f0000002800), &(0x7f0000002840)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffb) keyctl$unlink(0x9, r11, 0xfffffffffffffffc) keyctl$reject(0x13, r11, 0x9, 0x9, 0xfffffffffffffffe) 20:10:16 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r5, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) [ 2180.205066] nbd: couldn't find a device at index 32 20:10:16 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) (async, rerun: 64) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (rerun: 64) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) r3 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000080), r0) sendmsg$NLBL_MGMT_C_LISTDEF(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000140)={0x48, r3, 0x4, 0x70bd29, 0x25dfdbff, {}, [@NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x3}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @private=0xa010102}}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x48}, 0x1, 0x0, 0x0, 0x8040}, 0x854) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) r6 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/llc/core\x00') sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r5, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) [ 2180.265768] nbd: couldn't find a device at index 0 20:10:17 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_open_procfs(0x0, &(0x7f0000002080)='net/tcp6\x00') read$FUSE(r1, &(0x7f0000000000)={0x2020, 0x0, 0x0, 0x0}, 0x2020) setuid(r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r4 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$L2TP_CMD_SESSION_CREATE(r4, &(0x7f00000028c0)={0x0, 0x0, &(0x7f0000002880)={&(0x7f0000002840)={0x14}, 0x14}}, 0x0) r5 = socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$NL80211_CMD_DEL_TX_TS(r5, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f0000000180)={&(0x7f00000000c0)={0x34, r6, 0x1, 0x0, 0x0, {{}, {@val={0x8}, @val={0xc}}}, [@NL80211_ATTR_MAC={0xa}]}, 0x34}}, 0x0) ioctl$sock_SIOCGIFINDEX_80211(r1, 0x8933, &(0x7f00000020c0)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_UNEXPECTED_FRAME(r4, &(0x7f0000002180)={&(0x7f0000002040)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000002140)={&(0x7f0000002100)={0x28, r6, 0x400, 0x70bd2a, 0x25dfdbfc, {{}, {@val={0x8, 0x3, r7}, @val={0xc, 0x99, {0x3ff, 0x17}}}}, ["", "", "", "", "", "", ""]}, 0x28}, 0x1, 0x0, 0x0, 0x4004000}, 0x8) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x14, r3, 0x1}, 0x14}}, 0x0) 20:10:17 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(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) [ 2180.296243] nbd: couldn't find device at index 2 [ 2180.307526] nbd: couldn't find a device at index 32 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket$inet6_udplite(0xa, 0x2, 0x88) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000380)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x14, r4, 0x400, 0x70bd26, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0x20000000}, 0x20040001) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r5, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) [ 2180.396295] nbd: couldn't find a device at index 0 [ 2180.405305] nbd: couldn't find a device at index 32 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket$inet6_udplite(0xa, 0x2, 0x88) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) 20:10:17 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r4, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r5, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:17 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_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c00030009000000000000000800010020"], 0x34}}, 0x0) 20:10:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) [ 2180.474881] nbd: couldn't find a device at index 0 [ 2180.480484] nbd: couldn't find a device at index 0 [ 2180.494367] nbd: couldn't find a device at index 32 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) socket$inet6_udplite(0xa, 0x2, 0x88) (async, rerun: 64) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (rerun: 64) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) [ 2180.563897] nbd: couldn't find a device at index 0 20:10:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x50, 0x0, 0x300, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x14}, 0x10040) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x61, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="3400001e2f3a00", @ANYRES16=r1, @ANYRES64=r1], 0x34}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) [ 2180.605569] nbd: couldn't find a device at index 32 [ 2180.610622] nbd: couldn't find a device at index 0 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r4, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r5, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x50, 0x0, 0x300, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x14}, 0x10040) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x61, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="3400001e2f3a00", @ANYRES16=r1, @ANYRES64=r1], 0x34}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) (async) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x50, 0x0, 0x300, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x14}, 0x10040) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x61, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="3400001e2f3a00", @ANYRES16=r1, @ANYRES64=r1], 0x34}}, 0x0) (async) 20:10:17 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$nbd(&(0x7f0000000100), r1) (async) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x155b}]}, 0x24}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r4, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r5, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:17 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r2) sendmsg$NLBL_MGMT_C_ADD(r2, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000100)={&(0x7f0000000180)={0x50, 0x0, 0x300, 0x70bd2a, 0x25dfdbfc, {}, [@NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @loopback}, @NLBL_MGMT_A_FAMILY={0x6, 0xb, 0x2a}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x2}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_CV4DOI={0x8, 0x4, 0xffffffffffffffff}, @NLBL_MGMT_A_CLPDOI={0x8, 0xc, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x14}, 0x10040) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x61, &(0x7f0000000080)={&(0x7f00000000c0)=ANY=[@ANYBLOB="3400001e2f3a00", @ANYRES16=r1, @ANYRES64=r1], 0x34}}, 0x0) 20:10:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x155b}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x155b}]}, 0x24}}, 0x0) (async) [ 2180.804371] nbd: must specify a size in bytes for the device 20:10:17 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x155b}]}, 0x24}}, 0x0) 20:10:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r3) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r4, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r5, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:17 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES8=r2, @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES8=r2, @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 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$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES8=r2, @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) [ 2181.128092] nbd: couldn't find a device at index 0 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r4, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:17 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:17 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYRES8=r2, @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:17 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="57c3", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="57c3", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="57c3", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) (async) 20:10:18 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r4, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:18 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)=ANY=[@ANYBLOB="57c3", @ANYRES16=r2, @ANYBLOB="0100000000000000000001000000040007800c0002000000000000000000"], 0x24}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000140)={0x90, 0x0, 0x100, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '}]-'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}]}, 0x90}, 0x1, 0x0, 0x0, 0x10}, 0x40) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r4, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r4, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000140)={0x90, 0x0, 0x100, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '}]-'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}]}, 0x90}, 0x1, 0x0, 0x0, 0x10}, 0x40) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r2, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000140)={0x90, 0x0, 0x100, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '}]-'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}]}, 0x90}, 0x1, 0x0, 0x0, 0x10}, 0x40) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (async) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) (async) 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) [ 2181.757997] nbd: couldn't find a device at index 0 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r4, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:18 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async, rerun: 32) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r2, 0x0, 0x0) (async) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x800000}, 0xc, &(0x7f0000000080)={&(0x7f0000000140)={0x90, 0x0, 0x100, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_BACKEND_IDENTIFIER={0x7, 0xa, '}]-'}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1000}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x20}]}, 0x90}, 0x1, 0x0, 0x0, 0x10}, 0x40) (async, rerun: 32) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) (rerun: 32) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000040)={0x24, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}]}, 0x24}}, 0x0) 20:10:18 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) [ 2181.866757] nbd: couldn't find a device at index 0 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x38, r1, 0x20, 0x70bd28, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}]}, 0x38}, 0x1, 0x0, 0x0, 0x41}, 0x4000021) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000180)={0x8c, r3, 0x400, 0x70bd2c, 0x25dfdbf8, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, ':*\'@),'}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x400000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x8c}, 0x1, 0x0, 0x0, 0x1}, 0x40) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r8) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r8) [ 2182.033319] nla_parse: 251 callbacks suppressed [ 2182.033325] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2182.057794] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2182.068584] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2182.079163] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2182.089499] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2182.098667] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2182.107800] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2182.116808] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 2182.125861] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. 20:10:18 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x38, r1, 0x20, 0x70bd28, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}]}, 0x38}, 0x1, 0x0, 0x0, 0x41}, 0x4000021) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000180)={0x8c, r3, 0x400, 0x70bd2c, 0x25dfdbf8, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, ':*\'@),'}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x400000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x8c}, 0x1, 0x0, 0x0, 0x1}, 0x40) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r8) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r8) 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$nbd(&(0x7f0000000100), r0) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x38, r1, 0x20, 0x70bd28, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}]}, 0x38}, 0x1, 0x0, 0x0, 0x41}, 0x4000021) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r4, 0x0, 0x0) (async) pipe(&(0x7f00000007c0)) (async) write$FUSE_ATTR(r5, 0x0, 0x0) (async) pipe(&(0x7f00000000c0)) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)) (async) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000180)={0x8c, r3, 0x400, 0x70bd2c, 0x25dfdbf8, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, ':*\'@),'}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x400000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x8c}, 0x1, 0x0, 0x0, 0x1}, 0x40) (async) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r8) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r8) (async) 20:10:18 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r4, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) 20:10:18 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:18 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) [ 2182.218148] nbd: couldn't find a device at index 0 [ 2182.247556] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. 20:10:19 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x0) 20:10:19 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:19 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:19 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$nbd(&(0x7f0000000100), r1) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r3, 0x0, 0x0) write$FUSE_ATTR(0xffffffffffffffff, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000180)={0x88, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x88}}, 0x0) 20:10:19 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x0) 20:10:19 executing program 4: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) (async) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000100), r0) (async) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000000)={0x38, r1, 0x20, 0x70bd28, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}, @NBD_ATTR_BACKEND_IDENTIFIER={0xe, 0xa, 'NLBL_MGMT\x00'}]}, 0x38}, 0x1, 0x0, 0x0, 0x41}, 0x4000021) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r2) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r4, 0x0, 0x0) pipe(&(0x7f00000007c0)={0xffffffffffffffff, 0xffffffffffffffff}) write$FUSE_ATTR(r5, 0x0, 0x0) pipe(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) (async) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000300)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000380)={&(0x7f0000000180)={0x8c, r3, 0x400, 0x70bd2c, 0x25dfdbf8, {}, [@NBD_ATTR_BACKEND_IDENTIFIER={0xa, 0xa, ':*\'@),'}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x400000000000000}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x4}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8}]}, 0x8c}, 0x1, 0x0, 0x0, 0x1}, 0x40) (async) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), r8) (async) syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r8) 20:10:19 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$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000440)=ANY=[@ANYBLOB='4\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010025bd70009ca5694c030000000c00050001040200000000000c0003000900000000000000080001"], 0x34}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000006bc0), 0xffffffffffffffff) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r1) sendmsg$NLBL_MGMT_C_REMOVEDEF(r3, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000200)={&(0x7f0000000180)={0x60, r4, 0x3d5a80b97273c549, 0x70bd27, 0x25dfdbfe, {}, [@NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}}, @NLBL_MGMT_A_DOMAIN={0x8, 0x1, 'nbd\x00'}, @NLBL_MGMT_A_IPV4ADDR={0x8, 0x7, @multicast1}, @NLBL_MGMT_A_IPV6ADDR={0x14, 0x5, @ipv4={'\x00', '\xff\xff', @remote}}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x6, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}]}, 0x60}, 0x1, 0x0, 0x0, 0xc0}, 0x44000) [ 2182.382623] ================================================================== [ 2182.390266] BUG: KASAN: use-after-free in refcount_dec_not_one+0x9a/0xc0 [ 2182.397092] Read of size 4 at addr ffff88809a89d858 by task systemd-udevd/21393 [ 2182.404524] [ 2182.406148] CPU: 1 PID: 21393 Comm: systemd-udevd Not tainted 4.14.289-syzkaller #0 [ 2182.413932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 2182.423451] Call Trace: [ 2182.426055] dump_stack+0x1b2/0x281 [ 2182.429688] print_address_description.cold+0x54/0x1d3 [ 2182.434956] kasan_report_error.cold+0x8a/0x191 [ 2182.439606] ? refcount_dec_not_one+0x9a/0xc0 [ 2182.444081] __asan_report_load4_noabort+0x68/0x70 [ 2182.448992] ? refcount_dec_not_one+0x9a/0xc0 [ 2182.453492] refcount_dec_not_one+0x9a/0xc0 [ 2182.457815] refcount_dec_and_mutex_lock+0x1a/0x60 [ 2182.462735] nbd_release+0xf3/0x150 [ 2182.466342] ? nbd_ioctl+0xac0/0xac0 [ 2182.470033] __blkdev_put+0x5aa/0x800 [ 2182.473827] ? revalidate_disk+0x1f0/0x1f0 [ 2182.478049] ? locks_remove_file+0x2cd/0x420 [ 2182.482533] ? blkdev_put+0x75/0x4c0 [ 2182.486231] ? blkdev_put+0x4c0/0x4c0 [ 2182.490022] blkdev_close+0x86/0xb0 [ 2182.493633] __fput+0x25f/0x7a0 [ 2182.496979] task_work_run+0x11f/0x190 [ 2182.500851] exit_to_usermode_loop+0x1ad/0x200 [ 2182.505416] do_syscall_64+0x4a3/0x640 [ 2182.509283] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 2182.514534] RIP: 0033:0x7f3fdb63a270 [ 2182.518227] RSP: 002b:00007ffdd2fe74d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 2182.525909] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f3fdb63a270 [ 2182.533156] RDX: 000000000aba9500 RSI: 0000000000000000 RDI: 0000000000000007 [ 2182.540403] RBP: 00007f3fdc4f4710 R08: 0000000000000045 R09: 0000000000000018 [ 2182.547653] R10: 00005566e57958f8 R11: 0000000000000246 R12: 0000000000000000 [ 2182.554901] R13: 00005566e57926e0 R14: 0000000000000003 R15: 000000000000000e [ 2182.562159] [ 2182.563772] Allocated by task 21386: [ 2182.567466] kasan_kmalloc+0xeb/0x160 [ 2182.571241] kmem_cache_alloc_trace+0x131/0x3d0 [ 2182.575881] nbd_dev_add+0x7c/0x800 [ 2182.579480] nbd_genl_connect+0x3a4/0x13e0 [ 2182.583686] genl_family_rcv_msg+0x572/0xb20 [ 2182.588072] genl_rcv_msg+0xaf/0x140 [ 2182.591766] netlink_rcv_skb+0x125/0x390 [ 2182.595803] genl_rcv+0x24/0x40 [ 2182.599055] netlink_unicast+0x437/0x610 [ 2182.603100] netlink_sendmsg+0x648/0xbc0 [ 2182.607148] sock_sendmsg+0xb5/0x100 [ 2182.610839] ___sys_sendmsg+0x6c8/0x800 [ 2182.614791] __sys_sendmsg+0xa3/0x120 [ 2182.618565] SyS_sendmsg+0x27/0x40 [ 2182.622079] do_syscall_64+0x1d5/0x640 [ 2182.625948] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 2182.631106] [ 2182.632709] Freed by task 21393: [ 2182.636051] kasan_slab_free+0xc3/0x1a0 [ 2182.640008] kfree+0xc9/0x250 [ 2182.643101] nbd_put.part.0+0x100/0x140 [ 2182.647046] nbd_config_put+0x51c/0x6c0 [ 2182.651036] nbd_release+0xdf/0x150 [ 2182.654660] __blkdev_put+0x5aa/0x800 [ 2182.658436] blkdev_close+0x86/0xb0 [ 2182.662040] __fput+0x25f/0x7a0 [ 2182.665300] task_work_run+0x11f/0x190 [ 2182.669169] exit_to_usermode_loop+0x1ad/0x200 [ 2182.673728] do_syscall_64+0x4a3/0x640 [ 2182.677598] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 2182.682767] [ 2182.684371] The buggy address belongs to the object at ffff88809a89d780 [ 2182.684371] which belongs to the cache kmalloc-512 of size 512 [ 2182.697008] The buggy address is located 216 bytes inside of [ 2182.697008] 512-byte region [ffff88809a89d780, ffff88809a89d980) [ 2182.708866] The buggy address belongs to the page: [ 2182.713771] page:ffffea00026a2740 count:1 mapcount:0 mapping:ffff88809a89d000 index:0x0 [ 2182.721978] flags: 0xfff00000000100(slab) [ 2182.726108] raw: 00fff00000000100 ffff88809a89d000 0000000000000000 0000000100000006 [ 2182.733965] raw: ffffea0002d384a0 ffffea0002a841a0 ffff88813fe74940 0000000000000000 [ 2182.741817] page dumped because: kasan: bad access detected [ 2182.747496] [ 2182.749111] Memory state around the buggy address: [ 2182.754024] ffff88809a89d700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 2182.761362] ffff88809a89d780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 2182.768696] >ffff88809a89d800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 2182.776028] ^ [ 2182.782235] ffff88809a89d880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 2182.789660] ffff88809a89d900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 2182.796992] ================================================================== [ 2182.804326] Disabling lock debugging due to kernel taint [ 2182.810941] Kernel panic - not syncing: panic_on_warn set ... [ 2182.810941] [ 2182.818303] CPU: 1 PID: 21393 Comm: systemd-udevd Tainted: G B 4.14.289-syzkaller #0 [ 2182.827297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 2182.836634] Call Trace: [ 2182.839214] dump_stack+0x1b2/0x281 [ 2182.842834] panic+0x1f9/0x42d [ 2182.846013] ? add_taint.cold+0x16/0x16 [ 2182.849973] ? ___preempt_schedule+0x16/0x18 [ 2182.854377] kasan_end_report+0x43/0x49 [ 2182.858331] kasan_report_error.cold+0xa7/0x191 [ 2182.862993] ? refcount_dec_not_one+0x9a/0xc0 [ 2182.867461] __asan_report_load4_noabort+0x68/0x70 [ 2182.872366] ? refcount_dec_not_one+0x9a/0xc0 [ 2182.876833] refcount_dec_not_one+0x9a/0xc0 [ 2182.881136] refcount_dec_and_mutex_lock+0x1a/0x60 [ 2182.886048] nbd_release+0xf3/0x150 [ 2182.889651] ? nbd_ioctl+0xac0/0xac0 [ 2182.893339] __blkdev_put+0x5aa/0x800 [ 2182.897120] ? revalidate_disk+0x1f0/0x1f0 [ 2182.901332] ? locks_remove_file+0x2cd/0x420 [ 2182.905722] ? blkdev_put+0x75/0x4c0 [ 2182.909411] ? blkdev_put+0x4c0/0x4c0 [ 2182.913183] blkdev_close+0x86/0xb0 [ 2182.916798] __fput+0x25f/0x7a0 [ 2182.920235] task_work_run+0x11f/0x190 [ 2182.924114] exit_to_usermode_loop+0x1ad/0x200 [ 2182.928678] do_syscall_64+0x4a3/0x640 [ 2182.932543] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 2182.937710] RIP: 0033:0x7f3fdb63a270 [ 2182.941404] RSP: 002b:00007ffdd2fe74d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 2182.949094] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f3fdb63a270 [ 2182.956336] RDX: 000000000aba9500 RSI: 0000000000000000 RDI: 0000000000000007 [ 2182.963590] RBP: 00007f3fdc4f4710 R08: 0000000000000045 R09: 0000000000000018 [ 2182.970845] R10: 00005566e57958f8 R11: 0000000000000246 R12: 0000000000000000 [ 2182.978090] R13: 00005566e57926e0 R14: 0000000000000003 R15: 000000000000000e [ 2182.985508] Kernel Offset: disabled [ 2182.989121] Rebooting in 86400 seconds..