0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:39 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) r7 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000340), 0x40100, 0x0) r8 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r8, 0x3b71, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000440)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x7c, r1, 0x20, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x200}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}]}]}, 0x7c}, 0x1, 0x0, 0x0, 0x2000000}, 0x4000) ioctl$VHOST_RESET_OWNER(r3, 0xaf02, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000006c0)=ANY=[@ANYBLOB="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", @ANYRES16=r1, @ANYBLOB="882d85647a63f36c877b772d1a534937d0ed547e0eb6fb8cf7e3e19d38797142ce0dafbecf95d7dae8f2648e524ca13c66df00631c943c32af990bc14da82b222b23d482302ba7237ec8de465d04fb2d11ed383c2887870d99a0871e91c4ffc0ec251905af7e09eded8819570760ff399cca1e2861cda0107eeef709907c91d60209157bf143d1c6bb1c2d81d334dd5765d634e8ac0d36976495d7304f1cb973a8e56e76bb7ce64f706020daaa3b566e454b6163f7b7d5017e9c998762c9e4fb4f344560d4c74908548b"], 0x1c}}, 0x0) r9 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r9, 0x3b71, 0x0) r10 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r10, 0x3b71, 0x0) r11 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000080)={0x6c, r1, 0x400, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x6c}, 0x1, 0x0, 0x0, 0x20000000}, 0x20048080) 00:27:39 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r2, 0x3b71, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r2, &(0x7f0000000800)={0x0, 0x18, 0xfa00, {0x0, &(0x7f00000007c0)={0xffffffffffffffff}, 0x106, 0x1}}, 0x20) write$RDMA_USER_CM_CMD_NOTIFY(0xffffffffffffffff, &(0x7f0000000840)={0xf, 0x8, 0xfa00, {r3, 0xb}}, 0x10) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(r4, &(0x7f0000000080)={0xb, 0x10, 0xfa00, {&(0x7f00000001c0), r3, 0xb5f7}}, 0x18) write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x4, 0xfa00, {r3}}, 0xc) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1897.888857] nbd: couldn't find a device at index 2 00:27:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1897.942297] nbd: couldn't find a device at index 4 00:27:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:39 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x4c, r1, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0x4c}}, 0x0) 00:27:39 executing program 3: r0 = add_key$fscrypt_v1(&(0x7f0000000180), &(0x7f00000001c0)={'fscrypt:', @desc2}, &(0x7f0000000200)={0x0, "2bb33828b00ddfe85f25d8343109c406e1af6625f6aa08a979535306a5a277fa168c8b40d96abde481796630b74be587a31a45aeca597c10b4f37d8549d79bd7"}, 0x48, 0xfffffffffffffffd) keyctl$update(0x2, r0, 0x0, 0x0) keyctl$assume_authority(0x10, r0) ioctl$NBD_SET_TIMEOUT(0xffffffffffffffff, 0xab09, 0x9) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x109000, 0x0) ioctl$VFIO_IOMMU_GET_INFO(r3, 0x3b70, &(0x7f0000000080)={0x18, 0x0, 0x0, 0x200}) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x20, r2, 0x1, 0xffffffff, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x5}]}, 0x20}, 0x1, 0x0, 0x0, 0xc090}, 0x0) [ 1897.995999] nbd: couldn't find a device at index 1 [ 1898.043069] nbd: couldn't find a device at index 2 00:27:39 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1898.074945] nbd: couldn't find a device at index 4 00:27:39 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:39 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:39 executing program 5: r0 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) r1 = inotify_add_watch(r0, &(0x7f0000000240)='./file0\x00', 0x0) inotify_rm_watch(0xffffffffffffffff, r1) ioctl$VFIO_IOMMU_MAP_DMA(r0, 0x3b71, 0x0) r2 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r2, 0xaf02, 0x0) epoll_ctl$EPOLL_CTL_MOD(r0, 0x3, r2, &(0x7f0000000200)={0x2}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="b931fc3a", @ANYRES16=r4, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r6) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) sendmsg$NBD_CMD_CONNECT(r6, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000000c0)={&(0x7f0000000280)={0x68, r4, 0x100, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xfffffffffffffff7}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0xf744ee42dcbde17}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x800}]}, 0x68}, 0x1, 0x0, 0x0, 0x10}, 0x40040) [ 1898.116055] nbd: must specify a device to reconfigure 00:27:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r5, 0x3b71, 0x0) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000080), 0x22a00, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r6, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) r9 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r9, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) r11 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000240), 0x80b02, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000400)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000280)={0x114, 0x0, 0x8, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xf555}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xa5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xee9e}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x1e9f}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r8}, {0x8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}, {0x8}, {0x8, 0x1, r11}, {0x8}]}]}, 0x114}, 0x1, 0x0, 0x0, 0x20004001}, 0x4040) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1898.224245] nbd: couldn't find a device at index 2 00:27:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000080), 0x80000, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) r7 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000340)) ioctl$VFIO_IOMMU_MAP_DMA(r7, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) r9 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r9, 0x3b71, 0x0) setsockopt$netrom_NETROM_IDLE(r9, 0x103, 0x7, &(0x7f0000000300)=0x9, 0x4) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x6c, r4, 0x300, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8}]}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}, {0x8, 0x1, r8}, {0x8}, {0x8}]}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4004000}, 0x4000800) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x200, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1898.274586] nbd: couldn't find a device at index 4 00:27:40 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r1, 0x200, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}]}, 0x4c}, 0x1, 0x0, 0x0, 0x8040}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000040), 0xffffffffffffffff) r5 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IPVS_CMD_ZERO(r5, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000300)={0x14, r4, 0x13de4aae4348b7e5}, 0x14}}, 0x0) sendmsg$IPVS_CMD_DEL_DAEMON(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x3c, r4, 0x800, 0x70bd28, 0x25dfdbfe, {}, [@IPVS_CMD_ATTR_TIMEOUT_UDP={0x8, 0x6, 0x2}, @IPVS_CMD_ATTR_SERVICE={0x20, 0x1, 0x0, 0x1, [@IPVS_SVC_ATTR_FLAGS={0xc, 0x7, {0x8, 0xa}}, @IPVS_SVC_ATTR_SCHED_NAME={0x7, 0x6, 'nq\x00'}, @IPVS_SVC_ATTR_PE_NAME={0x8}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x40004}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1898.398552] nbd: couldn't find a device at index 1 [ 1898.405206] nbd: couldn't find a device at index 2 [ 1898.432252] nbd: couldn't find a device at index 5 [ 1898.448044] nbd: couldn't find a device at index 4 00:27:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:40 executing program 1: r0 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000400), 0x800, 0x0) ioctl$VHOST_SET_LOG_BASE(r0, 0x4008af04, &(0x7f00000004c0)=&(0x7f0000000480)) r1 = syz_init_net_socket$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_genetlink_get_family_id$nbd(&(0x7f00000000c0), 0xffffffffffffffff) openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000001c0), 0x8800, 0x0) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x4ec3, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r5, 0x3b71, 0x0) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r6, 0x3b71, 0x0) openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000200), 0x4000, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000240)) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000340)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x40, r4, 0x100, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}]}, 0x40}, 0x1, 0x0, 0x0, 0x4000050}, 0x20000010) r7 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000380), 0x2, 0x0) epoll_ctl$EPOLL_CTL_ADD(r5, 0x1, r7, &(0x7f00000003c0)={0x20000010}) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r8, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r2, @ANYBLOB="2000000000000000000003000000080001000010881e"], 0x1c}}, 0x0) r9 = syz_open_dev$ptys(0xc, 0x3, 0x1) ioctl$PIO_UNIMAP(r9, 0x4b67, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x0, 0x3}]}) 00:27:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x10}, 0x14}}, 0x40) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000001c0)={&(0x7f00000000c0)={0x38, r2, 0x100, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x8000}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x38}, 0x1, 0x0, 0x0, 0x80}, 0x20044044) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) 00:27:40 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) getuid() r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1898.642985] nbd: couldn't find a device at index 5 [ 1898.716006] nbd: couldn't find a device at index 4 00:27:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x200000, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, 0x0, 0x200, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r1}, {0x8, 0x1, r2}, {0x8, 0x1, r3}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x470fe83a}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}]}, 0x68}, 0x1, 0x0, 0x0, 0x1}, 0x1) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r4, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 3: r0 = openat$cuse(0xffffffffffffff9c, &(0x7f00000000c0), 0x2, 0x0) r1 = getgid() mount$fuseblk(&(0x7f0000000000), &(0x7f0000000040)='./file0\x00', &(0x7f0000000080), 0x900000, &(0x7f00000001c0)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r0, @ANYBLOB=',rootmode=00000000000000000020000,user_id=', @ANYRESDEC, @ANYBLOB="2c67726f7570df69643d", @ANYRESDEC=r1, @ANYBLOB=',blksize=0x0000000000000800,blksize=0x0000000000000800,rootcontext=staff_u,dont_appraise,permit_directio,euid>', @ANYRESDEC=0xee01, @ANYBLOB=',smackfshat=nbd\x00,\x00']) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1898.808730] nbd: couldn't find a device at index 2 [ 1898.817226] nbd: couldn't find a device at index 5 [ 1898.837403] nbd: couldn't find a device at index 1 00:27:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:40 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f00000000c0), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000140)={&(0x7f00000001c0)=ANY=[@ANYBLOB='|\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="000826bd7000fcdbdf25010000000c00040001000000000000000c0005001c000000000000000c04080004000000000000000c000600010000000000000008000100000000000c00080000080000000000000c00030009000000000000000c00050023000000000000000c0006000000000000000000"], 0x7c}, 0x1, 0x0, 0x0, 0x40055}, 0x4004) openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000000), 0x20000, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000280), r4) [ 1898.882667] nbd: couldn't find a device at index 4 00:27:40 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x100, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f00000002c0)={&(0x7f0000000200)={0xa0, 0x0, 0x0, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r1}, {0x8, 0x1, r2}, {0x8}, {0x8, 0x1, r3}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x81}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x29}]}, 0xa0}, 0x1, 0x0, 0x0, 0x4000000}, 0x20048040) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r7, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r6, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1898.953819] nbd: couldn't find a device at index 3 00:27:40 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:40 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0xfffffffffffffde7, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x10, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xfffffffffffffe86}, 0x1, 0x0, 0x0, 0xc840}, 0x40) [ 1899.049336] nbd: couldn't find a device at index 2 [ 1899.060819] nbd: couldn't find a device at index 3 [ 1899.072260] nbd: couldn't find a device at index 5 [ 1899.089809] nbd: couldn't find a device at index 1 00:27:40 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000b80)={&(0x7f0000000ac0)={0x10, 0x0, 0x0, 0x800}, 0xc, &(0x7f0000000b40)={&(0x7f0000000b00)={0x2c, r1, 0x8, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fffffff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0x2c}, 0x1, 0x0, 0x0, 0x10}, 0x40001) sendmmsg$alg(0xffffffffffffffff, &(0x7f0000000a40)=[{0x0, 0x0, &(0x7f00000003c0)=[{&(0x7f0000000000)="5b7c85532947e02615d313c0c580c261454cefdd2b576fae47554a222950d0686ed4eb133fb9cb8df4d358352bb4b0c0b2bde19e9167305e89fca1eaa325f21336a785e9cb9019339aef5a83cf4421287c9ba2ecf96546224bfd8d3237a59dd2a576908cef4fdaa86c36a75c0319ea88a6ad2a0d3338034ae750867ecfa98f34566d70f0b1ca5bd82e231f52b7550cb6bbe5ae90c9aa09d12bad58381afe763004aa180f12c4d260bc824b216e50a3e623880ddb49a413cb536fce686840974a04c4bdce45ff294981", 0xc9}], 0x1, &(0x7f0000000400)=ANY=[@ANYBLOB="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"], 0x170, 0x49}, {0x0, 0x0, &(0x7f0000000700)=[{&(0x7f0000000580)="3d9b2a17225fc6bb6df1efe92725491c23244d60c53d1bd0c8e1295a008420bedff6f3a1feb2b7febc8c19862fac6198ef07d06930c594c74aec54638686155292d2b55553547bce5e4f8227622b43d4282ca344d4820fc0c173939b8cd4cd2c30714470407f221833a9797b68139ca24298ef7a6fe026fa1c1e146913d2a1a30a429c", 0x83}, {&(0x7f0000000640)="0759f605cf3a5b621b2ea142bdb3f67db21a05f7a32c1153f4aa00dad33dbcd2129f077fa0857a9ccd008f5f720d5cb8ca5967ee0fdc71da86e755b7c72dccd04581fb6f11f61a319da7d772ddc915f1ef964a60f2f9f1148a435aafa136c9fd97654c97cec8dfcb7e0c973232e18d22756f695a8357bf5fdc1639cc86d07a4d40f31af1af0dd6e3a55f8d0ec6d86f5b7ac5319ef69a0137370def84e0d0ace6ac6c74ae", 0xa4}], 0x2, &(0x7f0000000740)=[@iv={0xe0, 0x117, 0x2, 0xc5, "d2aa49626f661af8950790de44fdf160c13888d5884d62bba882e5371188463bcd36a961fc41309578d78e167714d6de7548f9733a3a4091812351ae51d2cef0af70b7a05350570114ced0de1999e77c67259d1d294bc8f14341f175e20d55ee6429dcb24ae6a12dcdb26249de00111ef3bdf80ba36027c7e86161056b15afee1893d76708d7f305cb7f4ad1629bc00e9f0b34682437312012547c8f55cd04a36f8f72aa6fa503e90ceadb96e6f163311d341e3852e0277dcaa28632ade249d722c4143e1d"}, @iv={0x70, 0x117, 0x2, 0x55, "521430cc04782a7ff6a9ed0008c19750489f457513169b6043773ed347b6278787756af4b11874f5f15996858f60090812b4ff7e35f6b63e43efa68163f849bb948f64c3fc3b70b41063b1ee08364140248056ff09"}, @op={0x18}, @iv={0x78, 0x117, 0x2, 0x5e, "265b9db0d0aa3813c60b84d7f74dccc0c3fc9e8767c0b63bc130fa02c3a8beb1550b0872aa7d52327291ade6a311b5530b4e148d2e55ff8a7b31d783388fcde3be1212de97a578fcf75fe7c1197f2f07c6b4007c4fd9c57421d53a4a9601"}, @iv={0xc8, 0x117, 0x2, 0xb3, "21e93a7bfdeed93942df605c0417e62bf027ae45fbb3e4ff3d03a68e86a3494a324e3e27bd9061f6700ee50b9e414f76fefaefdc2537f8011f0573dae715b604fa2c746dcf9886a28c4ab1f601d11130545dd4f399aa69d278badf68b749b9d31bff3e587cb74f99fef0170aa40ba38c3823f6996b85254ebf4b67ce23ac777ef6546804adf193bf3a11eee4256f7ffb5d95536257448e7a4808e742443e117ea6aa9aa8d8165ee5a615b23e3f0dd09f19758f"}, @iv={0x18}, @op={0x18}], 0x2d8}], 0x2, 0x891) [ 1899.148932] nbd: couldn't find a device at index 1 [ 1899.155051] nbd: couldn't find a device at index 5 [ 1899.164939] nbd: couldn't find a device at index 4 00:27:41 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, &(0x7f0000000680)={&(0x7f0000000580)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000640)={0x0}, 0x1, 0x0, 0x0, 0x4084}, 0x20000000) r2 = syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000200)={0x78, r2, 0x20, 0x70bd26, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x121}, @NBD_ATTR_SOCKETS={0x4}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x101}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x8}, @NBD_ATTR_SERVER_FLAGS={0xc}]}, 0x78}, 0x1, 0x0, 0x0, 0x400c000}, 0x80) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r3, @ANYBLOB="010000009d592cdf0800010000000000a0de2a1ce158e9632e0431bed3e57b6d01e6a0a8837f949e4a95e48f53c7102bd4991b97002d6acf19ab5867cf0f9cf1d7042b57e2a2867e39a9fc78458da1eea97fc09dbaf5c69e0cb3d5a9db1c3da9a59ad56751766d53221a80db98f4ad8a6e694c855a18a201e7807283bf46ebb6216c7c08fb16c3d6a12d33dc71c9a20156294e79f9e732f6dddfb92be2a4e7c227131903829f2dec7133d3f277"], 0x1c}, 0x1, 0x0, 0x0, 0x20004080}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000003c0)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x40, r3, 0x200, 0x70bd2c, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3ff}]}, 0x40}, 0x1, 0x0, 0x0, 0x48890}, 0x48810) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(0xffffffffffffffff, &(0x7f00000004c0)={0xb, 0x10, 0xfa00, {&(0x7f0000000400), 0xffffffffffffffff, 0x3}}, 0x18) 00:27:41 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1899.256666] nbd: couldn't find a device at index 0 [ 1899.271316] nbd: must specify at least one socket 00:27:41 executing program 3: r0 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r0, 0x3b71, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r0, &(0x7f0000000800)={0x0, 0x18, 0xfa00, {0x0, &(0x7f00000007c0)={0xffffffffffffffff}, 0x106, 0x1}}, 0x20) write$RDMA_USER_CM_CMD_NOTIFY(0xffffffffffffffff, &(0x7f0000000840)={0xf, 0x8, 0xfa00, {r1, 0xb}}, 0x10) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(0xffffffffffffffff, &(0x7f00000001c0)={0xb, 0x10, 0xfa00, {&(0x7f0000000040), r1, 0x3f}}, 0x18) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)=ANY=[@ANYBLOB="1c00acdf45e73858ed1c920000", @ANYRES16=r3, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 00:27:41 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1899.340067] nbd: couldn't find a device at index 0 [ 1899.346110] nbd: must specify at least one socket [ 1899.355844] nbd: couldn't find a device at index 2 00:27:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000080), 0xa0800, 0x0) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r6, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) r8 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r8, 0x3b71, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x6c, r1, 0x8, 0x70bd2b, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0x6c}, 0x1, 0x0, 0x0, 0xaa807cc2b6ea0de2}, 0x2004c800) r9 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r9, 0xaf02, 0x0) ioctl$VHOST_SET_VRING_CALL(r9, 0x4008af21, &(0x7f00000002c0)) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:41 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="9c000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000280)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x88, r3, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3ff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xf20c}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x22}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x88}, 0x1, 0x0, 0x0, 0x20000000}, 0x4010) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) 00:27:41 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1899.451828] nbd: couldn't find a device at index 4 00:27:41 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1899.520774] nbd: couldn't find a device at index 5 00:27:41 executing program 5: r0 = openat$vnet(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) ioctl$VHOST_SET_VRING_BUSYLOOP_TIMEOUT(r0, 0x4008af23, &(0x7f0000000040)={0x3, 0x2}) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB="08e78e35", @ANYRES16=r2, @ANYBLOB="0001020000000000002003f1bfda6b76faf91f000000dd27a26a6ef3822971ad1b3595353d9bdbfe433179e36140d5f6f64ec18de16c1554668fa57b641a35b0d2aa86d543fc79a37765a6783311516588987ae69d3bccd6c824a80fba43e8ff19250fdd1623ded36fa6140a7ba9182ea6f3b779c8828eeaab1b4b0471d3e32833ea12ea39b9ca2fe41f5e0f2ca1a9c4a3a45be18734efec6cd5176ef0cbc4c180d47e36ea075c1b7c29d784b973f3be692bef39de7f4c92ec7e686c4543ce685154622c9cbc89"], 0x1c}}, 0x408d4) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) ioctl$TIOCNOTTY(r4, 0x5422) 00:27:41 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r4, 0xd0c, 0x0, 0x25dfdbfe}, 0x14}}, 0x890) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000080)={&(0x7f0000000340)={0x3c, 0x0, 0x200, 0x70bd29, 0x25dfdbf9, {}, [@NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}]}]}, 0x3c}, 0x1, 0x0, 0x0, 0x20000810}, 0x2000c0a1) nanosleep(&(0x7f00000001c0), 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:41 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:41 executing program 1: r0 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000000), 0x43a104, 0x0) accept4$alg(r0, 0x0, 0x0, 0x80000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1899.668133] nbd: couldn't find a device at index 2 [ 1899.674461] nbd: couldn't find a device at index 4 [ 1899.683000] nbd: couldn't find a device at index 1 00:27:41 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1899.720427] nbd: couldn't find a device at index 3 00:27:41 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:41 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 00:27:41 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r3, 0x8, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffff9ca}]}, 0x20}, 0x1, 0x0, 0x0, 0xc0}, 0x4c080) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:41 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="0c140500882d54bde08c6d834899fec58165978e59929cacbe6a958a11e9f99e49ca58d4007adc54e31d413740babff30408cd40a6346e1223a0efff317eb22cb3dea97446e1180f4e9145ee996b01be182ee54774218e8d1d9617fbd419c804", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 00:27:41 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1899.849944] nbd: couldn't find a device at index 0 [ 1899.867835] nbd: couldn't find a device at index 5 00:27:41 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) keyctl$set_timeout(0xf, 0x0, 0x4) r2 = openat$ttyS3(0xffffffffffffff9c, &(0x7f00000000c0), 0x826806, 0x0) ioctl$PIO_UNIMAP(r2, 0x4b67, &(0x7f0000000080)={0x2, &(0x7f0000000040)=[{0x7, 0x5}, {0x1c, 0x1}]}) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x60, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c09a92e000200000000", @ANYRES16=r1, @ANYBLOB="0100000000000000"], 0x1c}}, 0x0) 00:27:41 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01650000000000002300010000000800000000000000"], 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r3) 00:27:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000000), 0x121002, 0x0) ioctl$VHOST_NET_SET_BACKEND(0xffffffffffffffff, 0x4008af30, &(0x7f0000000040)={0x1, r1}) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1899.917753] nbd: couldn't find a device at index 2 [ 1899.924611] nbd: couldn't find a device at index 4 00:27:41 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:41 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:41 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$apparmor_thread_current(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x12000, 0x0) ioctl$VHOST_GET_VRING_BASE(r3, 0xc008af12, &(0x7f0000000080)) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1900.031300] nbd: must specify at least one socket 00:27:41 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:41 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:41 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="209ed2d8c78a", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1900.083568] nbd: couldn't find a device at index 2 [ 1900.088631] nbd: couldn't find a device at index 5 [ 1900.094529] nbd: couldn't find a device at index 4 00:27:42 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1900.155550] nbd: couldn't find a device at index 1 [ 1900.161001] nbd: must specify at least one socket [ 1900.182155] nbd: couldn't find a device at index 1 00:27:42 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:42 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r0) clock_gettime(0x7, &(0x7f0000000000)) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1900.208191] nbd: couldn't find a device at index 2 00:27:42 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000080), 0x80402, 0x0) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r6, 0x3b71, 0x0) r7 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r7, 0x3b71, 0x0) r8 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000000c0), 0x20000, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x60, r4, 0x10, 0x70bd2c, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}]}]}, 0x60}}, 0x4030) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:42 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:42 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, r1, 0x20, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r4}]}]}, 0x28}, 0x1, 0x0, 0x0, 0x80}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1900.313301] nbd: couldn't find a device at index 3 [ 1900.332761] nbd: couldn't find a device at index 4 [ 1900.352214] nbd: couldn't find a device at index 5 00:27:42 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[@ANYBLOB="14000000", @ANYRES16=r4, @ANYBLOB="0100000000000000000005000000"], 0x14}}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x68, r4, 0x2, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x121}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3000000000000000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x7ff}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2}]}, 0x68}}, 0x4004040) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:42 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1900.359448] nbd: couldn't find a device at index 1 [ 1900.365774] nbd: couldn't find a device at index 2 00:27:42 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:42 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:42 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = add_key$fscrypt_v1(&(0x7f0000000180), &(0x7f00000001c0)={'fscrypt:', @desc2}, &(0x7f0000000200)={0x0, "2bb33828b00ddfe85f25d8343109c406e1af6625f6aa08a979535306a5a277fa168c8b40d96abde481796630b74be587a31a45aeca597c10b4f37d8549d79bd7"}, 0x48, 0xfffffffffffffffd) r3 = request_key(&(0x7f0000000040)='asymmetric\x00', &(0x7f0000000080)={'syz', 0x0}, &(0x7f00000000c0)='#,]@\x00', r2) keyctl$setperm(0x4, r3, 0x8240110) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000380)=ANY=[@ANYBLOB="f8ff97cc970c306d35c6fb5131bd1cef69264d69", @ANYRES16=r6, @ANYBLOB="0100000000000000000005000000"], 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000340)={&(0x7f0000000280)={0x10, 0x0, 0x0, 0x40}, 0xc, &(0x7f0000000300)={&(0x7f00000002c0)={0x38, r6, 0x8, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x4}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}]}, 0x38}, 0x1, 0x0, 0x0, 0x4008844}, 0x20000001) add_key$keyring(&(0x7f00000003c0), &(0x7f0000000400)={'syz', 0x1}, 0x0, 0x0, r2) 00:27:42 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_STATUS(r1, &(0x7f00000000c0)={&(0x7f0000000000), 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, r3, 0x200, 0x70bd2a, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x25}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x100000001}]}, 0x2c}}, 0x4004) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) [ 1900.465630] nbd: couldn't find a device at index 3 [ 1900.484991] nbd: couldn't find a device at index 5 [ 1900.493381] nbd: couldn't find a device at index 3 [ 1900.514803] nbd: couldn't find a device at index 2 00:27:42 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1900.536431] nbd: couldn't find a device at index 5 [ 1900.545885] nbd: couldn't find a device at index 4 00:27:42 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f00000002c0), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_open_dev$ndb(&(0x7f0000000280), 0x0, 0x204800) ioctl$NBD_SET_SIZE_BLOCKS(r3, 0xab07, 0x10001) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="7e00001d", @ANYRES16=r1, @ANYBLOB="0100000000000000000002000000000000000000000818ced3b15b72bc9b080d7da15b36517e1948a7e428f66d1f5ec83a6f2082cdb7bde610aff9e8fe5df499bac75fcb3087b32d1426513c259e9d7801a39f58b9ac893e02dc67433672602b381ec4b69afc22e7b77bf36a54c115b937b0d8ccbb4aad55481a06fd68c950ad4996f5bd884d1e4c2c456552ca06cb352f7668468ed2b7e43d5cb627435f6eff915753c261ac4d71a7d156a696b51e85bf40e19524fc"], 0x1c}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000200)={&(0x7f00000001c0)={0x34, r1, 0x200, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x10000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}]}, 0x34}, 0x1, 0x0, 0x0, 0x4000810}, 0x40) 00:27:42 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:42 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:42 executing program 3: read$FUSE(0xffffffffffffffff, &(0x7f0000000480)={0x2020, 0x0, 0x0, 0x0}, 0x2020) syz_mount_image$fuse(&(0x7f0000000280), &(0x7f00000002c0)='./file0\x00', 0x0, 0x0, 0x0, 0x12018, &(0x7f0000000300)={{}, 0x2c, {'rootmode', 0x3d, 0xa000}, 0x2c, {'user_id', 0x3d, r0}, 0x2c, {'group_id', 0x3d, 0xee01}, 0x2c, {[{@allow_other}, {@blksize={'blksize', 0x3d, 0x200}}, {@allow_other}, {@max_read={'max_read', 0x3d, 0x6}}], [{@euid_gt={'euid>', 0xee01}}, {@obj_type={'obj_type', 0x3d, 'nbd\x00'}}]}}) 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) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r4) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r4) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x64, r6, 0x2, 0x70bd2b, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xff}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xffffffffffffffe1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x64}, 0x1, 0x0, 0x0, 0x4}, 0x1) 00:27:42 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="010015556b690000000083fa804bb0a577380abd3e6b09407fa588a00bbfbf0300002008000100000000"], 0x1c}}, 0x0) 00:27:42 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1900.686385] nbd: couldn't find a device at index 2 00:27:42 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000080), r3) getgroups(0x1, &(0x7f0000000000)=[0xee00]) r4 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r4, 0xaf02, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={0x0, 0x16, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYRES16=r4, @ANYRES16=r1, @ANYBLOB="01000000002fe81d2b6d6f14ef93d992f5bbe31a6c8692fa05"], 0x1c}}, 0x0) [ 1900.711699] nbd: couldn't find a device at index 3 00:27:42 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1900.744827] nbd: couldn't find a device at index 3 00:27:42 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000340), r3) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r6, 0x3b71, 0x0) r7 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r7, 0x3b71, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f0000000480)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f0000000400)={&(0x7f0000000380)={0x68, r5, 0x300, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xd}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8}, {0x8, 0x1, r7}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc05}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xf8}]}, 0x68}, 0x1, 0x0, 0x0, 0x8048}, 0x0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) openat$apparmor_thread_current(0xffffffffffffff9c, &(0x7f0000000240), 0x2, 0x0) r9 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r8) r10 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r10, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000004c0)=ANY=[@ANYRESHEX, @ANYRES16=r9, @ANYBLOB="0100"/14], 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r9, @ANYBLOB="000325bd7000fbdbdf25030000000c00040000000000000000000c00080000080000000000000c0002007fffffffffffffff0c0006000300000000000000"], 0x44}, 0x1, 0x0, 0x0, 0x8041}, 0x40001) [ 1900.878785] nbd: couldn't find a device at index 2 [ 1900.899897] nbd: couldn't find a device at index 3 00:27:42 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:42 executing program 1: bpf$BPF_GET_MAP_INFO(0xf, &(0x7f0000000080)={0xffffffffffffffff, 0x28, &(0x7f0000000040)={0x0, 0x0}}, 0x10) bpf$BPF_MAP_GET_FD_BY_ID(0xe, &(0x7f00000000c0)={r0, 0x3, 0x8}, 0xc) ioctl$VHOST_GET_VRING_BASE(0xffffffffffffffff, 0xc008af12, &(0x7f0000000000)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r4, 0xaf02, 0x0) r5 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r5, 0xaf02, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c00", @ANYRES32, @ANYRESHEX=r2], 0x1c}}, 0x0) [ 1900.975606] nbd: couldn't find a device at index 2 00:27:42 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:42 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r1, 0x3b71, 0x0) connect$netrom(r1, &(0x7f0000000000)={{0x3, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, 0x8}, [@null, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @default, @bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @bcast, @bcast]}, 0x48) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:42 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1901.004300] nbd: couldn't find a device at index 4 [ 1901.013361] nbd: couldn't find a device at index 3 00:27:42 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:42 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f00000001c0)={&(0x7f0000000080)={0x44, 0x0, 0xa02, 0x70bd29, 0x25dfdbfe, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}]}]}, 0x44}, 0x1, 0x0, 0x0, 0x10}, 0x40) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="01e600"/13], 0x1c}}, 0x0) 00:27:42 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x1c, r1, 0x100, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x20000080) [ 1901.088703] nbd: couldn't find a device at index 5 00:27:43 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x1c, r1, 0x300, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0x0, 0x2, 0x9}]}, 0x1c}}, 0x40) [ 1901.133126] nbd: couldn't find a device at index 5 [ 1901.145863] nbd: couldn't find a device at index 2 [ 1901.157643] nbd: couldn't find a device at index 4 00:27:43 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:43 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x80) 00:27:43 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c0091911ec08274f72657a1f9e20000", @ANYRES16=r1, @ANYBLOB="010300000075698908000100006da1fa6ecf0e17ed2c29b8f691577013e5ec20d7d63452bdb588d50160a442bc09c96ff48a1df9e0eab0b70b1a98aa04b46fd0c42bfc5621171915a29340366fd1814f68dc4c627f2c10b5fd8b8217c60df91337243a1ca170e4e575c4b939743fe91ef263956bfe712dcbc61d8d7192810000000000000000000000000000dbe072a0b45e97b1080ee8a78a8c23302d5967000000000000000000"], 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000300), 0xc, &(0x7f0000000640)={0x0}, 0x1, 0x0, 0x0, 0x240440d0}, 0x24000800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r4) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r7) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r5, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000280)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x80, r5, 0x300, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000f5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xa6}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x305}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xb1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x80}, 0x1, 0x0, 0x0, 0x5}, 0x400c0d0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r8, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r9 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r9, 0x3b71, 0x0) 00:27:43 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r2) 00:27:43 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1901.306848] nbd: couldn't find a device at index 2 [ 1901.314894] nbd: couldn't find a device at index 3 [ 1901.337816] nbd: couldn't find a device at index 4 [ 1901.343665] nbd: couldn't find a device at index 3 00:27:43 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1901.391499] nbd: couldn't find a device at index 5 00:27:43 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r5, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80}, 0xc, &(0x7f00000000c0)={&(0x7f00000002c0)=ANY=[@ANYBLOB="00000400874b", @ANYRES16=r4, @ANYBLOB="04002bbd7000ffdbdf25010000004400078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000120", @ANYRES32=r5, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="1400078008000100", @ANYRES32=r6, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c000600000000000000000008000100000000000c0004001f00000000000000"], 0x8c}, 0x1, 0x0, 0x0, 0x4008880}, 0x4048) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x70bd2a, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1901.429710] nbd: couldn't find a device at index 5 [ 1901.466258] nbd: couldn't find a device at index 2 [ 1901.481513] nbd: couldn't find a device at index 4 [ 1901.502629] nla_parse: 64 callbacks suppressed [ 1901.502638] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:43 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c0091911ec08274f72657a1f9e20000", @ANYRES16=r1, @ANYBLOB="010300000075698908000100006da1fa6ecf0e17ed2c29b8f691577013e5ec20d7d63452bdb588d50160a442bc09c96ff48a1df9e0eab0b70b1a98aa04b46fd0c42bfc5621171915a29340366fd1814f68dc4c627f2c10b5fd8b8217c60df91337243a1ca170e4e575c4b939743fe91ef263956bfe712dcbc61d8d7192810000000000000000000000000000dbe072a0b45e97b1080ee8a78a8c23302d5967000000000000000000"], 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000300), 0xc, &(0x7f0000000640)={0x0}, 0x1, 0x0, 0x0, 0x240440d0}, 0x24000800) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r4) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r7) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r5, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f0000000280)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x80, r5, 0x300, 0x70bd29, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000f5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xa6}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x305}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xb1}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}]}, 0x80}, 0x1, 0x0, 0x0, 0x5}, 0x400c0d0) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r8, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r9 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r9, 0x3b71, 0x0) 00:27:43 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1901.516814] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:43 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1901.588326] nbd: couldn't find a device at index 3 [ 1901.597949] nbd: couldn't find a device at index 1 [ 1901.604080] nbd: couldn't find a device at index 2 [ 1901.613781] nbd: couldn't find a device at index 4 00:27:43 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r2, 0xaf02, 0x0) r3 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r3, 0xaf02, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x2, &(0x7f0000000100)={&(0x7f00000002c0)=ANY=[@ANYBLOB="1c000000d2eee63da92182b5b15712ff751b8de829774bf25a9745d8f7a46657602d1950876035c2770c8ee81de2d22ed39661af2748c3fd9a15bf8df70c1cc05ef6f1cf27a24d52f91698b1fa9dad78d895b21ac433714cd56b19a888f7cd3e782a8cbe994cf2633324afd1224f92036d201c9a03e4efd00f84020967f77a5957735e59447f86ff1475c6", @ANYRES16=r2, @ANYRESHEX=r3], 0x1c}}, 0x0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) ioctl$VHOST_SET_LOG_FD(r2, 0x4004af07, &(0x7f0000000080)=r4) ioctl$TIOCSERGETLSR(0xffffffffffffffff, 0x5459, &(0x7f0000000000)) 00:27:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:43 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1901.735594] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1901.760385] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1901.812206] nbd: couldn't find a device at index 2 00:27:43 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1901.840142] nbd: couldn't find a device at index 4 [ 1901.855209] nbd: couldn't find a device at index 5 [ 1901.867077] nbd: couldn't find a device at index 1 00:27:43 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:43 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:43 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r3, 0x8, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}]}, 0x20}, 0x1, 0x0, 0x0, 0x48000}, 0x0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x54, r1, 0x8, 0x70bd25, 0x25dfdbff, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3f}]}, 0x54}, 0x1, 0x0, 0x0, 0x20040011}, 0x20080080) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:43 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IPVS_CMD_SET_DEST(0xffffffffffffffff, &(0x7f0000000380)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)=ANY=[@ANYBLOB="0801000d04cb3ef2ec00f059103962c530beea6961", @ANYRES16=0x0, @ANYRESDEC], 0x108}, 0x1, 0x0, 0x0, 0x90}, 0x8223fdf1bd933239) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000680)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000006c0)={0xffffffffffffffff}) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r5, 0x3b71, 0x0) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000700), 0x181100, 0x0) r7 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r7, 0x3b71, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000880)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000840)={&(0x7f0000000740)={0xd0, 0x0, 0xf0d, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8000000000000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xff}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x21}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8}, @NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}, {0x8}, {0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}]}]}, 0xd0}, 0x1, 0x0, 0x0, 0x20004000}, 0x44000) r8 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r8, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)=ANY=[@ANYBLOB, @ANYRES16=r1, @ANYBLOB="00042cbd7000ffdbdf25030300fa00"/26], 0x20}, 0x1, 0x0, 0x0, 0x4830}, 0x4040010) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r10 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r9) r11 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r11, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r10, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000500)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000400)={&(0x7f0000000480)={0x4c, r10, 0x0, 0x70bd25, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x101}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1ff}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x4c}}, 0x4044040) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1902.007932] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1902.020173] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:43 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1902.154190] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1902.168274] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1902.220955] nbd: couldn't find a device at index 4 [ 1902.232108] nbd: couldn't find a device at index 5 [ 1902.242752] nbd: couldn't find a device at index 2 [ 1902.248936] nbd: couldn't find a device at index 3 [ 1902.254188] nbd: couldn't find a device at index 1 00:27:44 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1902.274320] nbd: couldn't find a device at index 3 00:27:44 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:44 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1902.314557] nbd: couldn't find a device at index 4 00:27:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0xfffffffffffffe35, &(0x7f0000000100)={&(0x7f0000000000)={0x1c, r1, 0x2, 0x0, 0x1000, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0x0, 0x8, 0x382}]}, 0x1c}, 0x1, 0x0, 0x0, 0x44000}, 0x0) gettid() 00:27:44 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:44 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r0, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x20, 0x0, 0x10, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x657f}]}, 0x20}, 0x1, 0x0, 0x0, 0x400c095}, 0x80) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x7f, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000200), r2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000240)) openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000280), 0x14f841, 0x0) openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000003c0)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x80490008}, 0xc, &(0x7f0000000380)={&(0x7f0000000480)={0x64, r4, 0x800, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x4000000}, 0x0) 00:27:44 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1902.398425] nbd: couldn't find a device at index 5 [ 1902.416060] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:44 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$NBD_DO_IT(0xffffffffffffffff, 0xab03) [ 1902.455554] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1902.538512] nbd: couldn't find a device at index 2 [ 1902.565383] nbd: couldn't find a device at index 4 00:27:44 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:44 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1902.603366] nbd: couldn't find a device at index 1 [ 1902.611911] nbd: couldn't find a device at index 5 00:27:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r2, 0x300, 0x70bd28, 0x25dfdbfe}, 0x14}}, 0x2008400b) 00:27:44 executing program 3: r0 = openat$vfio(0xffffffffffffff9c, &(0x7f0000000000), 0xa0000, 0x0) ioctl$VFIO_CHECK_EXTENSION(r0, 0x3b65, 0x2) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:44 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:44 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1902.811077] nbd: couldn't find a device at index 2 [ 1902.818750] nbd: couldn't find a device at index 3 [ 1902.850347] nbd: couldn't find a device at index 5 00:27:44 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1902.858168] nbd: couldn't find a device at index 4 00:27:44 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, r1, 0x200, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe50}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x100}]}, 0x50}, 0x1, 0x0, 0x0, 0x101}, 0x85) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r5, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r4, 0x1}, 0x14}}, 0x0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000400)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r1, 0x4, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x96}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}]}, 0x2c}, 0x1, 0x0, 0x0, 0x10}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x44, r4, 0x2, 0x70bd2d, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xd67}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe1}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x6}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfff}]}, 0x44}, 0x1, 0x0, 0x0, 0x8880}, 0x40400c4) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:44 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:44 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:44 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x40, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000080)={0x80, r1, 0x200, 0x70bd29, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x6}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x20}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x104}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x10a}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x20}]}, 0x80}, 0x1, 0x0, 0x0, 0x40000}, 0x40004) 00:27:44 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:44 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1903.017969] nbd: couldn't find a device at index 1 [ 1903.036681] nbd: couldn't find a device at index 3 00:27:44 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1903.079275] nbd: couldn't find a device at index 4 [ 1903.085660] nbd: couldn't find a device at index 3 [ 1903.097347] nbd: couldn't find a device at index 1 00:27:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000500)={0xffffffffffffffff}) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000540), 0x500, 0x0) r7 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000005c0), 0x501140, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000000740)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000600)={&(0x7f00000006c0)={0x80, r1, 0x200, 0x70bd25, 0x25dfdbfb, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x122}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x100}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r5}, {0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8}]}]}, 0x80}, 0x1, 0x0, 0x0, 0x8040}, 0x400c045) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r8 = syz_genetlink_get_family_id$nbd(&(0x7f0000000380), r4) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000480)={&(0x7f00000004c0)={0x10, 0x0, 0x0, 0x20}, 0xc, &(0x7f0000000400)={&(0x7f00000003c0)={0x14, r8, 0x200, 0x70bd28, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0xecbad1e65bae1f18}, 0x4000080) syz_genetlink_get_family_id$nbd(&(0x7f0000000300), r4) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000002c0)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f0000000280)={&(0x7f0000000240)={0x28, r1, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x28}, 0x1, 0x0, 0x0, 0x4004010}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="441e0000", @ANYRES16=r1, @ANYBLOB="050425bd7000fbdbdf250100000008000100000000000c0008000300000000000000080001000000000008000100000000000c0008000400000000000000"], 0x44}, 0x1, 0x0, 0x0, 0x24004800}, 0x4044840) 00:27:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="1c0080a6", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1903.168235] nbd: couldn't find a device at index 2 00:27:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1903.326999] nbd: couldn't find a device at index 4 00:27:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="610000000073f212", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 00:27:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1903.422852] nbd: couldn't find a device at index 3 00:27:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1903.468285] nbd: couldn't find a device at index 2 00:27:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x28, 0x0, 0x100, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x28}, 0x1, 0x0, 0x0, 0x40000}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1903.589298] nbd: couldn't find a device at index 4 00:27:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:45 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1903.675543] nbd: couldn't find a device at index 3 00:27:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) getgid() r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1903.706888] nbd: couldn't find a device at index 2 [ 1903.718302] nbd: couldn't find a device at index 1 [ 1903.806641] nbd: couldn't find a device at index 4 00:27:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1903.854057] nbd: couldn't find a device at index 3 00:27:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="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"], 0x1c}}, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IPVS_CMD_ZERO(r3, 0x0, 0x0) r4 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000040), 0xffffffffffffffff) r5 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IPVS_CMD_ZERO(r5, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000300)={0x14, r4, 0x13de4aae4348b7e5}, 0x14}}, 0x0) sendmsg$IPVS_CMD_SET_CONFIG(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x2}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x1c, r4, 0x100, 0x70bd26, 0x25dfdbfd, {}, [@IPVS_CMD_ATTR_TIMEOUT_TCP={0x8, 0x4, 0x6}]}, 0x1c}, 0x1, 0x0, 0x0, 0x10081}, 0x20000000) 00:27:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1903.898178] nbd: couldn't find a device at index 2 [ 1903.905716] nbd: couldn't find a device at index 3 00:27:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:45 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:45 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x44241882}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x38, r1, 0x8, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffffffffffff}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x38}}, 0x4044080) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x44, 0x0, 0x100, 0x70bd26, 0x25dfdbff, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xc056}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x400}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x44}, 0x1, 0x0, 0x0, 0x4040010}, 0x80) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:45 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1904.018410] nbd: couldn't find a device at index 4 00:27:45 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x6c, r1, 0x2, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x401}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x7}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x128}]}, 0x6c}, 0x1, 0x0, 0x0, 0x4040080}, 0x4040000) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r5) sendmsg$NBD_CMD_DISCONNECT(r5, &(0x7f00000001c0)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x34, r1, 0x400, 0x70bd2b, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x34}}, 0xd0) 00:27:45 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:45 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1904.151345] nbd: couldn't find a device at index 2 [ 1904.172119] nbd: couldn't find a device at index 3 [ 1904.180545] nbd: couldn't find a device at index 1 00:27:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1904.225494] nbd: couldn't find a device at index 1 [ 1904.246190] nbd: couldn't find a device at index 4 [ 1904.257984] nbd: must specify at least one socket 00:27:46 executing program 1: ioctl$KDGKBMODE(0xffffffffffffffff, 0x4b44, &(0x7f00000000c0)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000200), 0x88800, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f00000001c0)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r1, 0x4, 0x70bd2a, 0x25dfdbfc, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xb}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xca}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xfffffffffffffffc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r3}]}]}, 0x58}, 0x1, 0x0, 0x0, 0x20004000}, 0x20000801) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="807708d98f329840dde2419350d3e02f3e58766756e668518e7fc4bcf5abd0fe669ffc87f3401f0f0b745950529b5c0b7f6c97054c31d738be099a1875eb697574267f78ebff5af2eda147e19c51061df7b1f0cb15736745779292b069f12e30f55140e500cfdd468240eb7055979aecc281f9c9cc111ffe043f5e72ba061976a8b7882400fd1a714aaea8d8e548c1d9f5c6d2695b0215d4175ddfc056b93433323bf3bb2fd11f29af8a608ecf9d3cabe7", @ANYRES16=r1, @ANYRES16=r1], 0x1c}}, 0x0) 00:27:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) ioctl$ASHMEM_SET_NAME(r3, 0x41007701, &(0x7f0000000000)='nbd\x00') 00:27:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1904.406139] nbd: must specify at least one socket [ 1904.412043] nbd: couldn't find a device at index 3 00:27:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1904.458223] nbd: couldn't find a device at index 2 [ 1904.465088] nbd: couldn't find a device at index 4 [ 1904.485640] nbd: couldn't find a device at index 3 00:27:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r3) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) sendmsg$NBD_CMD_CONNECT(r5, &(0x7f00000003c0)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000380)={&(0x7f0000000340)={0x20, 0x0, 0x8, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x9}]}, 0x20}, 0x1, 0x0, 0x0, 0x40815}, 0x8080) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r4, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r4, 0x100, 0x70bd27, 0x25dfdbff, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xb24}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x4c}, 0x1, 0x0, 0x0, 0x20000000}, 0x1) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 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$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x28, r3, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}]}, 0xfffffffffffffc59}}, 0x40100) 00:27:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1904.540071] nbd: must specify at least one socket 00:27:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1904.703444] nbd: couldn't find a device at index 2 00:27:46 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1904.726719] nbd: couldn't find a device at index 1 [ 1904.770007] nbd: couldn't find a device at index 4 00:27:46 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r5, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000001c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000200)={0x90, r1, 0x700, 0x70bd25, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8, 0x1, r7}, {0x8, 0x1, r8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x90}, 0x1, 0x0, 0x0, 0x4004005}, 0x24000880) r9 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r9, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) r10 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r10, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000380)={0xffffffffffffffff}) r12 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000003c0), 0x100, 0x0) sendmsg$NBD_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000540)={&(0x7f0000000340)={0x10, 0x0, 0x0, 0x40000000}, 0xc, &(0x7f0000000400)={&(0x7f0000000480)={0x84, 0x0, 0x1, 0x70bd2b, 0x25dfdbfe, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8, 0x1, r10}, {0x8, 0x1, r6}, {0x8, 0x1, r5}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x39e}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8, 0x1, r4}, {0x8, 0x1, r6}, {0x8, 0x1, r11}, {0x8, 0x1, r12}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe6e4}]}, 0x84}, 0x1, 0x0, 0x0, 0x20000151}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f0000000300)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000002c0)={&(0x7f00000001c0)={0xc8, r1, 0x100, 0x70bd2c, 0x25dfdbfd, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5f}, @NBD_ATTR_SOCKETS={0x4c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x2f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x28}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x463}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x1}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3f}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x108}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0xc8}, 0x1, 0x0, 0x0, 0x4004800}, 0x0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r5, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1904.892237] nbd: couldn't find a device at index 3 00:27:46 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000000), 0x2044, 0x0) ioctl$SNAPSHOT_GET_IMAGE_SIZE(r3, 0x8008330e, &(0x7f0000000040)) 00:27:46 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:46 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1904.969487] nbd: couldn't find a device at index 4 [ 1904.989383] nbd: couldn't find a device at index 1 00:27:46 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)={0x68, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x54, 0x7, 0x0, 0x1, [{0x8}, {0x8, 0x1, r6}, {0x8, 0x1, r2}, {0x8, 0x1, r3}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}, {0x8}]}]}, 0x68}}, 0x5884) [ 1905.032621] nbd: couldn't find a device at index 2 00:27:46 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1905.079867] nbd: couldn't find a device at index 3 00:27:46 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1905.151379] nbd: couldn't find a device at index 3 00:27:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r4) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r5, 0x1}, 0x14}}, 0x0) add_key(&(0x7f00000003c0)='rxrpc\x00', &(0x7f0000000400)={'syz', 0x2}, 0x0, 0x0, 0xffffffffffffffff) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x44, r5, 0x8, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffffffff}]}, 0x44}, 0x1, 0x0, 0x0, 0x1}, 0x0) 00:27:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1905.241492] nbd: couldn't find a device at index 4 [ 1905.250695] nbd: couldn't find a device at index 2 00:27:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1905.349508] nbd: couldn't find a device at index 3 00:27:47 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1905.498112] nbd: couldn't find a device at index 1 [ 1905.506747] nbd: couldn't find a device at index 3 [ 1905.512407] nbd: couldn't find a device at index 2 [ 1905.520066] nbd: couldn't find a device at index 4 00:27:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x28, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}]}, 0x28}}, 0x0) 00:27:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1905.733496] nbd: couldn't find a device at index 2 00:27:47 executing program 1: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(0xffffffffffffffff, 0x3b71, 0x0) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f00000005c0)={&(0x7f00000003c0)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000540)={&(0x7f00000006c0)={0xa4, r0, 0x10, 0x70bd28, 0x25dfdbfc, {}, [@NBD_ATTR_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x69d0c1a7}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8}, {0x8}, {0x8, 0x1, r3}, {0x8, 0x1, r4}]}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x20000000000800}]}, 0xa4}}, 0x20000000) ioctl$VFIO_IOMMU_MAP_DMA(0xffffffffffffffff, 0x3b71, 0x0) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r5, 0x3b71, 0x0) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f00000000c0)={&(0x7f0000000040), 0xc, &(0x7f0000000080)={&(0x7f0000000480)={0x8c, r0, 0x200, 0x70bd26, 0x25dfdbfc, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x80000001}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x48}, @NBD_ATTR_SOCKETS={0x1c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x80000000}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3ff}]}, 0x8c}, 0x1, 0x0, 0x0, 0x4000}, 0x4008901) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r6, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000240)=ANY=[@ANYBLOB="9c000000", @ANYRES16=r0, @ANYBLOB="020026bd7000fbdbdf25020000000c00050025000000000000000c00030092000000000000001c00078008000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c000800da0200000000000008000100000000000c0002230001000000000000000c00020009000000000000001c000780080001", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="08000100", @ANYRES32, @ANYBLOB="0c0005002fac47b3cb5e3f39e33bcbd926bbab9157d012d2b7e683297bddcd65a5ae6a4dcdae8fea5f17a56cfa9e5e9afcc102075d8a9d7ff9dc84495ea656e2dd48165c1d41d62b0608237dee405826b9044e5c44ba348aeb02e4322a1eb7afb984daeab2b27836d2fcfd96cf4b558a9d3dd37ff7c492b7077f7b6cd11c3033836e5b3d2a00e08d295d55424d122b0b4c64605127b1421894f9331177bd32c6f9f6845404ec33d892408ba0cb994b4cc9dbd1fc3d16abaefb0ac329c949c0"], 0x9c}, 0x1, 0x0, 0x0, 0x2400c0c1}, 0x0) inotify_init() sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000400)=ANY=[@ANYBLOB="5bf5987c", @ANYRES16=r0, @ANYBLOB="01000000100100000000030400d3270009000040000000"], 0x1c}}, 0x0) [ 1905.801493] nbd: couldn't find a device at index 4 00:27:47 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1905.839067] nbd: couldn't find a device at index 3 00:27:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r4) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r6, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r5, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x4c, r5, 0x400, 0x70bd2a, 0x25dfdbff, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xc}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x5}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x5}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x1}]}, 0x4c}, 0x1, 0x0, 0x0, 0x804}, 0x8c4) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1906.053991] nbd: couldn't find a device at index 2 00:27:47 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:47 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:47 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1906.140506] nbd: couldn't find a device at index 4 [ 1906.147040] nbd: couldn't find a device at index 1 00:27:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c000000", @ANYBLOB="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", @ANYBLOB="010021000000000000000300000008eb101674a5c1000167000000000bf0d7aeecb232091e1632bdc4b0d2963a0ffea73c18b8"], 0x1c}}, 0x0) r2 = epoll_create1(0x0) r3 = openat$ttyprintk(0xffffffffffffff9c, &(0x7f0000000040), 0x4100, 0x0) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r3, &(0x7f0000000080)={0x6}) [ 1906.270819] nbd: couldn't find a device at index 2 00:27:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 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$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r3, 0x1}, 0x14}}, 0x0) 00:27:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1906.429541] nbd: couldn't find a device at index 4 00:27:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1906.506122] nbd: couldn't find a device at index 2 [ 1906.518834] nbd: must specify a device to reconfigure 00:27:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1906.549976] nla_parse: 98 callbacks suppressed [ 1906.549985] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. 00:27:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1906.653638] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1906.708844] nbd: couldn't find a device at index 3 00:27:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r1) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r2, 0x1, 0x0, 0x4, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1906.744227] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 00:27:48 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1906.794764] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1906.841180] nbd: couldn't find a device at index 4 [ 1906.854984] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:48 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1906.890867] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1906.947684] nbd: couldn't find a device at index 2 00:27:48 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x200}, 0x14}, 0x1, 0x0, 0x0, 0x8850}, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4000000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r1, 0x1, 0x70bd2a, 0x25dfdbfe, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x8001}]}, 0x20}, 0x1, 0x0, 0x0, 0x40}, 0x4008040) 00:27:48 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:48 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1907.003418] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 00:27:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1907.052023] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 00:27:48 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1907.125415] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1907.143525] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. 00:27:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1907.217466] nbd: couldn't find a device at index 4 [ 1907.222474] nbd: couldn't find a device at index 3 00:27:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_DISCONNECT(r0, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)={0x50, r1, 0x200, 0x70bd2c, 0x25dfdbfc, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x2}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe0fb}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3769acbf}]}, 0x50}, 0x1, 0x0, 0x0, 0xc0}, 0x5) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 00:27:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1907.391744] nbd: must specify a size in bytes for the device [ 1907.403017] nbd: couldn't find a device at index 1 00:27:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1907.444169] nbd: couldn't find a device at index 2 [ 1907.463596] nbd: couldn't find a device at index 1 00:27:49 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x38, r4, 0x400, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7fff}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x7}]}, 0x38}, 0x1, 0x0, 0x0, 0x8000}, 0x84) [ 1907.583362] nbd: couldn't find a device at index 4 [ 1907.589682] nbd: couldn't find a device at index 3 [ 1907.600142] nbd: couldn't find a device at index 1 00:27:49 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1907.687577] nbd: couldn't find a device at index 2 [ 1907.700478] nbd: couldn't find a device at index 1 00:27:49 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x400}, 0xc, &(0x7f00000001c0)={&(0x7f0000000080)={0x64, r2, 0x200, 0x70bd2a, 0x25dfdbfb, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0xc0}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x3}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x10a}]}, 0x64}, 0x1, 0x0, 0x0, 0x4000800}, 0x4) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000340)={&(0x7f0000000300)={0x38, r2, 0x800, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x3}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x50}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}]}, 0x38}, 0x1, 0x0, 0x0, 0x8010}, 0x0) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r5, @ANYBLOB="01001000000000000000030000000800010000000000"], 0x1c}}, 0x0) 00:27:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1907.818499] nbd: couldn't find a device at index 4 00:27:49 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1907.877596] nbd: couldn't find a device at index 3 00:27:49 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1907.963569] nbd: couldn't find a device at index 0 00:27:49 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:49 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1908.039893] nbd: couldn't find a device at index 2 [ 1908.110039] nbd: couldn't find a device at index 4 [ 1908.116913] nbd: couldn't find a device at index 0 [ 1908.130191] nbd: couldn't find a device at index 3 00:27:50 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8f99222d8823d77e}, 0x0) write$FUSE_NOTIFY_INVAL_INODE(0xffffffffffffffff, &(0x7f0000000000)={0x28, 0x2, 0x0, {0x0, 0x8, 0x4}}, 0x28) 00:27:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1908.288607] nbd: couldn't find a device at index 2 [ 1908.295633] nbd: couldn't find a device at index 1 00:27:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1908.411385] nbd: couldn't find a device at index 1 [ 1908.418092] nbd: couldn't find a device at index 4 [ 1908.423217] nbd: couldn't find a device at index 3 00:27:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socket$rds(0x15, 0x5, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000240), r0) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r5, 0x3b71, 0x0) sendmsg$NBD_CMD_STATUS(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x38, r4, 0x400, 0x70bd26, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xea63}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x8}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}]}]}, 0x38}, 0x1, 0x0, 0x0, 0x4000020}, 0x40840) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x20, r6, 0x1, 0x70bd2d, 0x25dfdbff, {}, [@NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}]}, 0x20}}, 0x800) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:50 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1908.548299] nbd: couldn't find a device at index 2 00:27:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:50 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:50 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1908.699187] nbd: couldn't find a device at index 4 [ 1908.704888] nbd: must specify an index to disconnect 00:27:50 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1908.843124] nbd: couldn't find a device at index 1 [ 1908.848551] nbd: couldn't find a device at index 2 00:27:50 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1908.926898] nbd: must specify an index to disconnect 00:27:50 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x4c, r1, 0x2, 0x70bd2b, 0x25dfdbff, {}, [@NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x6}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x2}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xfffffffffffffffc}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x4c}, 0x1, 0x0, 0x0, 0x400c0}, 0x34004880) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x40000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000080)={0x30, r3, 0x2, 0x70bd2d, 0x25dfdbfc, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x4}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x30}, 0x1, 0x0, 0x0, 0x800}, 0x20040014) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000380)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f00000003c0)={0xffffffffffffffff}) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r6, 0x3b71, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000400)={0x58, r1, 0x1, 0x0, 0x2, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xd}, @NBD_ATTR_SOCKETS={0x2c, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}, {0x8}, {0x8, 0x1, r5}, {0x8, 0x1, r6}, {0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x3}]}, 0x58}}, 0x80) 00:27:50 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:50 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:50 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1909.078206] nbd: couldn't find a device at index 4 00:27:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1909.138160] nbd: couldn't find a device at index 2 [ 1909.157235] nbd: must specify a device to reconfigure [ 1909.175196] nbd: must specify a device to reconfigure 00:27:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB, @ANYRES16=r1, @ANYBLOB="010000000000343edefb75f107519dd542b6004765c9e6069c3d000000f0ffffffffffffff0000000000"], 0x1c}}, 0x0) 00:27:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1909.359243] nbd: couldn't find a device at index 4 00:27:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1909.443749] nbd: couldn't find a device at index 2 00:27:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x20, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x2a}]}, 0x20}}, 0x0) 00:27:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1909.592843] nbd: couldn't find a device at index 4 [ 1909.611822] nbd: must specify a device to reconfigure 00:27:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000000c0), 0x408000, 0x0) r7 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000001c0), 0x400, 0x0) r8 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r8, 0x3b71, 0x0) r9 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r9, 0x3b71, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000000340)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8000}, 0xc, &(0x7f0000000300)={&(0x7f0000000240)={0xb8, r3, 0x100, 0x70bd27, 0x25dfdbfb, {}, [@NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0xffffffffffffffc2}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x3}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x6}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8, 0x1, r4}]}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r5}, {0x8, 0x1, r6}]}, @NBD_ATTR_SOCKETS={0x34, 0x7, 0x0, 0x1, [{0x8, 0x1, r7}, {0x8}, {0x8, 0x1, r8}, {0x8}, {0x8, 0x1, r9}, {0x8, 0x1, r10}]}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0xc03}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0xb8}, 0x1, 0x0, 0x0, 0x2000c801}, 0x800) r11 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r11, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1909.727784] nbd: couldn't find a device at index 2 00:27:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1909.852753] nbd: couldn't find a device at index 1 [ 1909.874240] nbd: couldn't find a device at index 4 00:27:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:51 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1909.940490] nbd: couldn't find a device at index 1 [ 1909.951312] nbd: couldn't find a device at index 2 00:27:51 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:51 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:51 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(0xffffffffffffffff, 0xc02064b2, &(0x7f0000000000)={0x7fff, 0x200, 0xfffffffa}) [ 1910.107647] nbd: couldn't find a device at index 3 [ 1910.127107] nbd: couldn't find a device at index 1 00:27:51 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1910.202066] nbd: couldn't find a device at index 1 [ 1910.246967] nbd: couldn't find a device at index 2 00:27:52 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:52 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r2, 0xaf02, 0x0) ioctl$NBD_CLEAR_QUE(0xffffffffffffffff, 0xab05) r3 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r3, 0xaf02, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000040)=ANY=[@ANYBLOB="1c0ce200ab2e7dfc264531adfbbdd0b141cf69c1e938c40c99f879f905cdb3c2961b4ed1faae4265c9d07d4422067877d3e7aa6641a2593e7898a202f2d9da64acdab4e0411ac696f651dc088e13eb030f2089bf65aa399ad29a0db9b81be1b56d5ab0cb5bffbfb1cf344433606c1d562ef476c28c35b366c4", @ANYRES32=r3, @ANYRESDEC=r2], 0x1c}}, 0x1) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r6 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r5) r7 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r7, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r6, 0x1}, 0x14}}, 0x0) r8 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r8, 0x3b71, 0x0) openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000001c0), 0x8200, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000200)) sendmsg$NBD_CMD_STATUS(r4, &(0x7f0000000300)={&(0x7f0000000100)={0x10, 0x0, 0x0, 0x2000000}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x14, r6, 0x2, 0x70bd23, 0x25dfdbff}, 0x14}, 0x1, 0x0, 0x0, 0x40}, 0x20008801) [ 1910.320538] nbd: couldn't find a device at index 4 [ 1910.350645] nbd: couldn't find a device at index 3 00:27:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:52 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1910.423470] nbd: must specify at least one socket [ 1910.434304] nbd: couldn't find a device at index 2 00:27:52 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) r4 = openat$cuse(0xffffffffffffff9c, &(0x7f0000002140), 0x2, 0x0) read$FUSE(r4, &(0x7f00000021c0)={0x2020, 0x0, 0x0}, 0x2020) write$FUSE_POLL(r4, &(0x7f0000004200)={0x18, 0x0, r5}, 0x18) read$FUSE(r4, 0x0, 0x0) read$FUSE(0xffffffffffffffff, &(0x7f0000000480)={0x2020, 0x0, 0x0}, 0x2020) write$FUSE_BMAP(r4, &(0x7f0000000340)={0x18, 0xfffffffffffffff5, r6, {0xa79}}, 0x18) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000200)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1000000}, 0xc, &(0x7f00000001c0)={&(0x7f0000000080)={0x68, r3, 0x2, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x4}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x101}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10001}, @NBD_ATTR_TIMEOUT={0xc, 0x4, 0x5}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x40004}, 0x4000080) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r7 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IPVS_CMD_ZERO(r7, 0x0, 0x0) sendmsg$IPVS_CMD_NEW_SERVICE(r7, &(0x7f0000000300)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000002c0)={&(0x7f0000000280)={0x14, 0x0, 0x200, 0x70bd26, 0x25dfdbfd}, 0x14}, 0x1, 0x0, 0x0, 0x10}, 0x40014) 00:27:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1910.593478] nbd: couldn't find a device at index 3 00:27:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1910.614569] nbd: couldn't find a device at index 4 [ 1910.632591] nbd: must specify at least one socket [ 1910.641793] nbd: couldn't find a device at index 2 00:27:52 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1910.706916] nbd: couldn't find a device at index 1 00:27:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x80000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x2c, 0x0, 0x200, 0x70bd28, 0x25dfdbfe, {}, [@NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x99}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20000090}, 0x8008880) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1910.847608] nbd: couldn't find a device at index 4 00:27:52 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1910.911651] nbd: couldn't find a device at index 3 00:27:52 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:52 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1910.984940] nbd: couldn't find a device at index 1 [ 1910.990558] nbd: must specify at least one socket 00:27:52 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000969a7b6b406684a870eeb84c358c4c924160da335caa7ac185bf632cb4e0cdbe96b432e173149b47c3133958f3bd606d96a747a32d5236554b748d603c4f649ecab4451f76b50c64bf514ca050e288da220a4821fcd3c64dca5c6f55b629af0af6637d37f7cdad541464a8664403584bbfccbfb4487cdbe101c18c3ba8c84cda5603ba2e88ba2938fa02bb233c0637b5111d81db3002b8bc0f3d48bb3a7c60d9114ed28426107f7e0fed54700781d493e72679f8298d19", @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1911.081474] nbd: couldn't find a device at index 2 00:27:52 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:52 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1911.188282] nbd: couldn't find a device at index 3 00:27:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) sendmsg$NBD_CMD_DISCONNECT(r4, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x5ecf0e598d35a030}, 0xc, &(0x7f00000000c0)={&(0x7f0000000300)=ANY=[@ANYBLOB='D\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="020025bd7000fde5df25020000000c00060003000000000000000c0d543a1499ccdcc6034eec836e01818000050024000000000000000c000200fcb60000080a8578ea446c69f09ded1c4cd3b967e74065580656"], 0x44}, 0x1, 0x0, 0x0, 0x4000800}, 0x8002) ioctl$VHOST_RESET_OWNER(r3, 0xaf02, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000001c0)=ANY=[@ANYBLOB="1c00003f00c7e3d5cd600cee48c35b7a521651234ba78736375d8b089991713996bfd923e8b3340cd9e069227fe677cfe40e8b3cbf398e0120e23d133e793e30a4f80527fb1dc0a37bbd53c77f267f4afb9af4666913e2220f06417fec0433aa96cc85c64ccc1828a3027ba0071fd0b9b2e6e7911ba76f913018f7a77f69717b5d88de0d81cc28de2dfa86dc6777346b7aeea43a7be082e11cb3d9a60f8e2c162930b1e14a48d9930019bea32db07516373ac8a2851c3abe716d7e196bcb300cec0a3cda2a31a41613ec61ee741d", @ANYRES16=r3, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) [ 1911.238068] nbd: couldn't find a device at index 4 00:27:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:53 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, 0x0, 0x0) 00:27:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1911.358254] nbd: couldn't find a device at index 3 [ 1911.367994] nbd: couldn't find a device at index 2 00:27:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000680)={&(0x7f0000000580), 0xc, &(0x7f0000000640)={0x0}}, 0x0) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000080), 0x50000, 0x0) r5 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000000c0), 0x4001, 0x0) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000280)={&(0x7f00000001c0)={0x94, r3, 0x300, 0x70bd28, 0x25dfdbff, {}, [@NBD_ATTR_SOCKETS={0x3c, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r4}, {0x8}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_INDEX={0x8, 0x1, 0x0}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x7}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xffff}, @NBD_ATTR_CLIENT_FLAGS={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x8}]}, 0x94}, 0x1, 0x0, 0x0, 0x8000}, 0x20044090) r6 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r6, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:53 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1911.499257] nbd: couldn't find a device at index 4 00:27:53 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, 0x0, 0x0) 00:27:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1911.587836] nbd: couldn't find a device at index 2 00:27:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1911.609650] nla_parse: 107 callbacks suppressed [ 1911.609660] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1911.651406] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1911.708239] nbd: couldn't find a device at index 3 [ 1911.724416] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1911.751852] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:53 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, 0x0, 0x0) [ 1911.817449] nbd: couldn't find a device at index 4 [ 1911.822464] nbd: couldn't find a device at index 1 00:27:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1911.857591] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1911.897002] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1911.918626] nbd: couldn't find a device at index 3 00:27:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)={0x14, r1, 0x400, 0x10003}, 0x14}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r0) 00:27:53 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:53 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1911.954367] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1911.985806] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:53 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1912.060705] nbd: couldn't find a device at index 4 [ 1912.071506] nbd: couldn't find a device at index 2 00:27:53 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:53 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) 00:27:53 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:53 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) waitid(0x2, 0xffffffffffffffff, &(0x7f0000000000), 0x1, &(0x7f00000001c0)) [ 1912.118252] nbd: couldn't find a device at index 3 00:27:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1912.223431] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1912.272022] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:27:54 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) 00:27:54 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1912.327674] nbd: must specify at least one socket [ 1912.332584] nbd: couldn't find a device at index 2 [ 1912.351417] nbd: couldn't find a device at index 4 [ 1912.358257] nbd: couldn't find a device at index 1 [ 1912.363874] nbd: couldn't find a device at index 3 00:27:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) r4 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000040), 0xffffffffffffffff) r5 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$IPVS_CMD_ZERO(r5, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000300)={0x14, r4, 0x13de4aae4348b7e5}, 0x14}}, 0x0) sendmsg$IPVS_CMD_SET_CONFIG(r3, &(0x7f00000002c0)={&(0x7f0000000080)={0x10, 0x0, 0x0, 0x20000000}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0xf0, r4, 0x8, 0x70bd25, 0x25dfdbff, {}, [@IPVS_CMD_ATTR_TIMEOUT_UDP={0x8}, @IPVS_CMD_ATTR_DAEMON={0x58, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_MCAST_PORT={0x6, 0x7, 0x4e23}, @IPVS_DAEMON_ATTR_STATE={0x8}, @IPVS_DAEMON_ATTR_MCAST_TTL={0x5, 0x8, 0xff}, @IPVS_DAEMON_ATTR_MCAST_PORT={0x6, 0x7, 0x4e23}, @IPVS_DAEMON_ATTR_MCAST_GROUP={0x8, 0x5, @dev={0xac, 0x14, 0x14, 0x26}}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @empty}, @IPVS_DAEMON_ATTR_MCAST_GROUP={0x8, 0x5, @multicast2}, @IPVS_DAEMON_ATTR_MCAST_PORT={0x6, 0x7, 0x4e24}, @IPVS_DAEMON_ATTR_STATE={0x8}]}, @IPVS_CMD_ATTR_SERVICE={0x38, 0x1, 0x0, 0x1, [@IPVS_SVC_ATTR_AF={0x6, 0x1, 0x2}, @IPVS_SVC_ATTR_SCHED_NAME={0x8, 0x6, 'wlc\x00'}, @IPVS_SVC_ATTR_FLAGS={0xc, 0x7, {0x1, 0x2}}, @IPVS_SVC_ATTR_AF={0x6, 0x1, 0x2}, @IPVS_SVC_ATTR_PORT={0x6, 0x4, 0x4e24}, @IPVS_SVC_ATTR_AF={0x6}]}, @IPVS_CMD_ATTR_DAEMON={0x2c, 0x3, 0x0, 0x1, [@IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @private0}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @ipv4={'\x00', '\xff\xff', @multicast1}}]}, @IPVS_CMD_ATTR_TIMEOUT_TCP={0x8, 0x4, 0x8001}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x2}, @IPVS_CMD_ATTR_TIMEOUT_UDP={0x8, 0x6, 0x8001}]}, 0xf0}, 0x1, 0x0, 0x0, 0x10}, 0x20008050) r6 = openat$vnet(0xffffffffffffff9c, &(0x7f0000004400), 0x2, 0x0) ioctl$VHOST_RESET_OWNER(r6, 0xaf02, 0x0) epoll_ctl$EPOLL_CTL_ADD(r3, 0x1, r6, &(0x7f0000000000)={0x40000010}) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="efffffffffffffff0000030000000800010000000000"], 0x1c}}, 0x0) 00:27:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1912.513128] nbd: must specify at least one socket 00:27:54 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) [ 1912.543569] nbd: couldn't find a device at index 4 [ 1912.549377] nbd: couldn't find a device at index 3 00:27:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1912.589267] nbd: couldn't find a device at index 2 00:27:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100000}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x38, r1, 0x1, 0x70bd29, 0x25dfdbfb, {}, [@NBD_ATTR_TIMEOUT={0xc, 0x4, 0x612}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xc0000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x124}]}, 0x38}, 0x1, 0x0, 0x0, 0x10}, 0x800) 00:27:54 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) [ 1912.781949] nbd: couldn't find a device at index 1 [ 1912.787744] nbd: couldn't find a device at index 3 [ 1912.793256] nbd: couldn't find a device at index 4 00:27:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:54 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:54 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1912.881964] nbd: must specify an index to disconnect 00:27:54 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) [ 1912.942174] nbd: couldn't find a device at index 1 [ 1912.948328] nbd: couldn't find a device at index 2 00:27:54 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:54 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:54 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 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$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) r6 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000080), 0x200000, 0x0) r7 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r7, 0x3b71, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000280)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000000c0)={&(0x7f00000001c0)={0x9c, r3, 0x300, 0x70bd2c, 0x25dfdbfb, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x5}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x103}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_BLOCK_SIZE_BYTES={0xc, 0x3, 0x1}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x2d}, @NBD_ATTR_SOCKETS={0x24, 0x7, 0x0, 0x1, [{0x8}, {0x8}, {0x8}, {0x8, 0x1, r5}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0x101}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8, 0x1, r6}, {0x8, 0x1, r7}]}]}, 0x9c}, 0x1, 0x0, 0x0, 0xdf80c7bcaa0d5d5c}, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000300)=ANY=[@ANYBLOB="03f20000", @ANYRES16=r4, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}}, 0x0) 00:27:54 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1913.138697] nbd: couldn't find a device at index 4 00:27:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1913.248880] nbd: couldn't find a device at index 2 00:27:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r4, 0x3b71, 0x0) accept4$alg(r4, 0x0, 0x0, 0x80000) syz_genetlink_get_family_id$nbd(&(0x7f00000001c0), r3) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x8}, 0xc, &(0x7f0000000080)={&(0x7f0000000040)={0x14, r1, 0x400, 0x70bd2c, 0x25dfdbfc}, 0x14}, 0x1, 0x0, 0x0, 0xc7a2b534475cc543}, 0x20040080) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1913.448073] nbd: couldn't find a device at index 4 00:27:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1913.527746] nbd: couldn't find a device at index 2 [ 1913.533247] nbd: couldn't find a device at index 1 00:27:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1913.648766] nbd: couldn't find a device at index 1 [ 1913.653767] nbd: couldn't find a device at index 4 00:27:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x18, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SOCKETS={0x4}]}, 0x18}}, 0x0) 00:27:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1913.746667] nbd: couldn't find a device at index 2 00:27:55 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1913.819615] nbd: couldn't find a device at index 4 00:27:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(0x0, r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:55 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1913.930166] nbd: must specify a device to reconfigure 00:27:55 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:55 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="1c000000", @ANYRES16=r1, @ANYBLOB="0100000000000000000003000000080001000000000069e9010039e9325dc9e62095fb73f8f3f8d6155e9070adf2e63287bf433aae00a62af4eaf2c76a7eb221fc4c351819cc601f57e6e74bc0f0ba7ef852c016edd7c5e132b55d058c75cf8639607bdbd85d96c2194953c785d246a5f5099e14d24d7700a38e6f744b3bb12e23d5682c680cf1e56fe1"], 0x1c}}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f00000003c0), r0) r3 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$VFIO_IOMMU_MAP_DMA(r3, 0x3b71, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f0000000800)={0x0, 0x18, 0xfa00, {0x0, &(0x7f00000007c0)={0xffffffffffffffff}, 0x106, 0x1}}, 0x20) write$RDMA_USER_CM_CMD_NOTIFY(0xffffffffffffffff, &(0x7f0000000840)={0xf, 0x8, 0xfa00, {r4, 0xb}}, 0x10) write$RDMA_USER_CM_CMD_QUERY_ROUTE(0xffffffffffffffff, &(0x7f00000000c0)={0x5, 0x10, 0xfa00, {&(0x7f00000001c0), r4, 0x2}}, 0x18) [ 1914.054577] nbd: couldn't find a device at index 4 00:27:55 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1914.127814] nbd: couldn't find a device at index 2 00:27:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1914.221538] nbd: couldn't find a device at index 0 [ 1914.237343] nbd: couldn't find a device at index 0 00:27:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 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$nbd(&(0x7f0000000140), 0xffffffffffffffff) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYRESDEC=r0, @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000800010000000000"], 0x1c}, 0x1, 0x0, 0x0, 0x44000}, 0x0) syz_genetlink_get_family_id$nbd(&(0x7f0000000040), r2) [ 1914.368298] nbd: couldn't find a device at index 4 00:27:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1914.536039] nbd: couldn't find a device at index 2 00:27:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1914.637746] nbd: couldn't find a device at index 4 [ 1914.656967] nbd: couldn't find a device at index 0 [ 1914.666479] nbd: must specify a size in bytes for the device 00:27:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1914.689361] nbd: couldn't find a device at index 2 00:27:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1914.848524] nbd: couldn't find a device at index 4 00:27:56 executing program 3: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1914.938470] nbd: must specify a size in bytes for the device [ 1914.990871] nbd: couldn't find a device at index 2 00:27:56 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:56 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1915.078147] nbd: couldn't find a device at index 1 [ 1915.086775] nbd: couldn't find a device at index 4 00:27:56 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:56 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1915.141156] nbd: must specify a size in bytes for the device [ 1915.163719] nbd: couldn't find a device at index 2 00:27:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1915.385057] nbd: couldn't find a device at index 4 [ 1915.404223] nbd: couldn't find a device at index 1 00:27:57 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1915.441602] nbd: couldn't find a device at index 2 00:27:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1915.497868] ieee802154 phy0 wpan0: encryption failed: -22 [ 1915.503573] ieee802154 phy1 wpan1: encryption failed: -22 00:27:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 00:27:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1915.557191] nbd: must specify at least one socket 00:27:57 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 00:27:57 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) [ 1915.805031] nbd: couldn't find a device at index 4 [ 1915.813608] nbd: couldn't find a device at index 2 00:27:57 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:57 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:57 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:57 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:57 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1915.973793] nbd: must specify at least one socket [ 1916.007391] nbd: couldn't find a device at index 1 00:27:57 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:57 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:57 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.128742] nbd: couldn't find a device at index 2 [ 1916.140037] nbd: couldn't find a device at index 4 00:27:58 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:58 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.283263] nbd: couldn't find a device at index 1 00:27:58 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1916.430847] nbd: couldn't find a device at index 2 [ 1916.438460] nbd: must specify a size in bytes for the device 00:27:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1916.508073] nbd: couldn't find a device at index 4 [ 1916.527868] nbd: couldn't find a device at index 1 00:27:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:58 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.628416] nbd: couldn't find a device at index 2 00:27:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:58 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.648636] nbd: must specify a size in bytes for the device 00:27:58 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.689733] nbd: couldn't find a device at index 4 00:27:58 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.753626] nla_parse: 103 callbacks suppressed [ 1916.753636] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 00:27:58 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.830446] nbd: couldn't find a device at index 1 00:27:58 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.865422] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 00:27:58 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1916.922541] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1917.000942] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1917.011912] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1917.029585] nbd: couldn't find a device at index 4 [ 1917.035316] nbd: couldn't find a device at index 2 00:27:58 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:58 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1917.078837] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 00:27:58 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1917.166425] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 1917.267712] nbd: couldn't find a device at index 1 [ 1917.292991] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 00:27:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1917.333556] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1917.438092] nbd: couldn't find a device at index 4 [ 1917.449898] nbd: couldn't find a device at index 2 00:27:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1917.478713] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 00:27:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:59 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1917.557567] nbd: couldn't find a device at index 1 00:27:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1917.699366] nbd: couldn't find a device at index 4 00:27:59 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1917.797821] nbd: couldn't find a device at index 2 00:27:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:59 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:59 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, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:59 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, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1917.991488] nbd: couldn't find a device at index 4 00:27:59 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:27:59 executing program 0: r0 = syz_init_net_socket$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$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:27:59 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$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1918.107450] nbd: couldn't find a device at index 2 00:27:59 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1918.233198] nbd: couldn't find a device at index 4 00:28:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1918.500932] nbd: couldn't find a device at index 2 00:28:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1918.523394] nbd: couldn't find a device at index 4 00:28:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1918.615241] nbd: must specify a size in bytes for the device 00:28:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1918.750059] nbd: must specify a size in bytes for the device 00:28:00 executing program 0: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1918.887805] nbd: couldn't find a device at index 4 [ 1918.924050] nbd: couldn't find a device at index 2 00:28:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:00 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:00 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1919.179341] nbd: couldn't find a device at index 4 [ 1919.184473] nbd: couldn't find a device at index 1 [ 1919.199078] nbd: couldn't find a device at index 2 00:28:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, 0x0, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1919.429425] nbd: couldn't find a device at index 4 00:28:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1919.578031] nbd: couldn't find a device at index 1 00:28:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1919.709837] nbd: couldn't find a device at index 4 00:28:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1919.857566] nbd: couldn't find a device at index 1 00:28:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1919.978638] nbd: couldn't find a device at index 4 00:28:01 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1920.017488] nbd: couldn't find a device at index 1 00:28:01 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:01 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:01 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1920.237823] nbd: couldn't find a device at index 4 [ 1920.248358] nbd: couldn't find a device at index 1 00:28:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, 0x0, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1920.488545] nbd: couldn't find a device at index 1 00:28:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1920.707379] nbd: couldn't find a device at index 1 00:28:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={0x0}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1920.866879] nbd: couldn't find a device at index 1 00:28:02 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:02 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, 0x0, 0x0) 00:28:02 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:02 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:03 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r2, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, 0x0, 0x0) 00:28:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1921.378765] nbd: couldn't find a device at index 1 00:28:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, 0x0, 0x0) 00:28:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:03 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1921.657493] nbd: couldn't find a device at index 1 00:28:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, 0x0, 0x0) 00:28:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) 00:28:03 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x0, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:03 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1921.818977] nla_parse: 125 callbacks suppressed [ 1921.818986] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1921.833696] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 00:28:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1921.897285] nbd: couldn't find a device at index 1 00:28:03 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:03 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, 0x0, 0x0) 00:28:03 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1921.933051] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 1921.974282] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. 00:28:03 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) 00:28:03 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1922.043271] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1922.073632] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 00:28:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1922.127786] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 00:28:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, 0x0, 0x0) [ 1922.186136] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 00:28:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1922.266422] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 1922.281708] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. 00:28:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) 00:28:04 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x0, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) 00:28:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) 00:28:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) 00:28:04 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r0, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, 0x0}, 0x0) 00:28:04 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:04 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) 00:28:04 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r0, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) 00:28:04 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:04 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:04 executing program 1: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r0, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:04 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) 00:28:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) 00:28:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) [ 1923.358244] nbd: must specify at least one socket 00:28:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1923.491498] nbd: must specify at least one socket 00:28:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x68, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x68}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:05 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, 0x0, 0x1}, 0x14}}, 0x0) 00:28:05 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:05 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1924.208568] nbd: must specify a device to reconfigure 00:28:06 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, 0x0, 0x1}, 0x14}}, 0x0) 00:28:06 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:06 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, 0x0, 0x1}, 0x14}}, 0x0) 00:28:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1924.607096] nbd: must specify a device to reconfigure 00:28:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(0x0, r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x0, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:06 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1924.839971] nbd: must specify a device to reconfigure 00:28:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(0x0, r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x50, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:06 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:06 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) 00:28:06 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x74, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x74}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1925.059673] nbd: couldn't find a device at index 2 00:28:06 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(0x0, r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1925.107812] nbd: must specify at least one socket 00:28:06 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1925.147947] nbd: must specify a device to reconfigure 00:28:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x50, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) [ 1925.193908] nbd: couldn't find a device at index 1 00:28:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1925.277001] nbd: must specify a device to reconfigure 00:28:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1925.340355] nbd: must specify at least one socket 00:28:07 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x50, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x50}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:07 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1925.411534] nbd: couldn't find a device at index 2 [ 1925.421337] nbd: couldn't find a device at index 1 00:28:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1925.496935] nbd: must specify at least one socket [ 1925.502295] nbd: must specify a device to reconfigure 00:28:07 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1925.549464] nbd: must specify a device to reconfigure 00:28:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) [ 1925.599704] nbd: couldn't find a device at index 1 00:28:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1925.747286] nbd: couldn't find a device at index 2 00:28:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, 0x0, 0x20000800) [ 1925.808974] nbd: must specify a device to reconfigure [ 1925.837879] nbd: couldn't find a device at index 1 00:28:07 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:07 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:07 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1925.940316] nbd: must specify a device to reconfigure 00:28:07 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:07 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) [ 1926.047761] nbd: couldn't find a device at index 2 00:28:07 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, 0x0, 0x20000800) 00:28:07 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:08 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1926.232147] nbd: couldn't find a device at index 1 [ 1926.242843] nbd: must specify a device to reconfigure 00:28:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x14, r1, 0x1}, 0x14}}, 0x0) 00:28:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, 0x0, 0x20000800) 00:28:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1926.457879] nbd: must specify a device to reconfigure 00:28:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) 00:28:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1926.649068] nbd: couldn't find a device at index 2 [ 1926.655520] nbd: couldn't find a device at index 1 [ 1926.662711] nbd: must specify a size in bytes for the device 00:28:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:08 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x5c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0xc, 0x7, 0x0, 0x1, [{0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x5c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:08 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) [ 1926.906419] nbd: couldn't find a device at index 1 00:28:08 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1926.934400] nla_parse: 131 callbacks suppressed [ 1926.934409] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. 00:28:08 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1926.982813] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1927.042068] nbd: couldn't find a device at index 2 00:28:08 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r4, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:08 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1927.069509] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. 00:28:08 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:08 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1927.115707] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 1927.191107] nbd: couldn't find a device at index 1 00:28:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1927.218413] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1927.250979] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 1927.312210] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 1927.321775] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. 00:28:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) [ 1927.363629] nbd: couldn't find a device at index 2 [ 1927.369828] nbd: couldn't find a device at index 4 [ 1927.394535] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. 00:28:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1927.449610] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 1927.510139] nbd: couldn't find a device at index 1 00:28:09 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r3, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r2, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:09 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1927.702905] nbd: couldn't find a device at index 2 00:28:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1927.798064] nbd: couldn't find a device at index 1 00:28:09 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1927.942741] nbd: couldn't find a device at index 2 00:28:09 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:09 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:09 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1928.101097] nbd: couldn't find a device at index 1 00:28:09 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) [ 1928.367497] nbd: couldn't find a device at index 2 [ 1928.376288] nbd: must specify a size in bytes for the device 00:28:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, 0x0, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) [ 1928.588502] nbd: couldn't find a device at index 2 [ 1928.593702] nbd: couldn't find a device at index 4 00:28:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000), 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1928.791444] nbd: couldn't find a device at index 1 00:28:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x58, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x58}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1928.888472] nbd: couldn't find a device at index 2 00:28:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:10 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1929.008668] nbd: couldn't find a device at index 4 [ 1929.018250] nbd: couldn't find a device at index 1 00:28:10 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:10 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:10 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1929.201185] nbd: couldn't find a device at index 2 00:28:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1929.400817] nbd: couldn't find a device at index 1 [ 1929.415419] nbd: couldn't find a device at index 4 00:28:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1929.566888] nbd: couldn't find a device at index 2 00:28:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={0x0, 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:11 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1929.649754] nbd: couldn't find a device at index 1 [ 1929.658913] nbd: couldn't find a device at index 4 00:28:11 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, 0x0, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1929.756378] nbd: couldn't find a device at index 2 00:28:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={0x0, 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:11 executing program 3: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) [ 1930.047129] nbd: couldn't find a device at index 1 00:28:11 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:11 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={0x0, 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1930.076731] nbd: couldn't find a device at index 2 [ 1930.082509] nbd: couldn't find a device at index 4 00:28:11 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:11 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:12 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$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:12 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}}, 0x4000000) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:12 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$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) [ 1930.301780] nbd: couldn't find a device at index 1 00:28:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={0x0, 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1930.330146] nbd: couldn't find a device at index 2 00:28:12 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:12 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$nbd(0x0, r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, 0x0, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:12 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:12 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:12 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:12 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1930.667701] nbd: couldn't find a device at index 1 [ 1930.673573] nbd: couldn't find a device at index 2 [ 1930.690687] nbd: couldn't find a device at index 4 00:28:12 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:12 executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={0x0, 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:12 executing program 5: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:12 executing program 2: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3, 0x1}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:12 executing program 1: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r2) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_STATUS(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)={0x14, r3}, 0x14}}, 0x0) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x70, r3, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x70}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) r5 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, r1, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r5, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16=r1, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) 00:28:12 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$nbd(&(0x7f0000000140), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={&(0x7f0000000200), 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x64, r2, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x64}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000440)={0x1c, 0x0, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_INDEX={0x8, 0x1, 0x0}]}, 0x1c}}, 0x0) 00:28:12 executing program 5: syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000000300)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x100}, 0xc, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r1, 0x1, 0x70bd27, 0x25dfdbfd, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x100000001}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x4000000) 00:28:12 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$nbd(&(0x7f0000000140), r1) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000240)={0x7c, r2, 0x1, 0x0, 0x0, {}, [@NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0xe8}, @NBD_ATTR_SIZE_BYTES={0xc}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x10000}, @NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [{0x8}, {0x8}]}, @NBD_ATTR_SERVER_FLAGS={0xc, 0x5, 0xe}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc, 0x8, 0x9}, @NBD_ATTR_DEAD_CONN_TIMEOUT={0xc}, @NBD_ATTR_CLIENT_FLAGS={0xc, 0x6, 0x1}]}, 0x7c}, 0x1, 0x0, 0x0, 0x80}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r3, &(0x7f00000001c0)={&(0x7f0000000000)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f00000000c0)={&(0x7f0000000040)=ANY=[@ANYBLOB="60050000", @ANYRES16, @ANYBLOB="10002dbd7000fddbdf25030000000c00040000000000000000000c00060002000000000000000c0002003101000000000000040007800c00020000000000000000000c00060003000000000000000c0004000100008000000000"], 0x60}, 0x1, 0x0, 0x0, 0x44000}, 0x20000800) [ 1930.960139] ------------[ cut here ]------------ [ 1930.965137] refcount_t: underflow; use-after-free. [ 1930.972936] WARNING: CPU: 1 PID: 14261 at lib/refcount.c:280 refcount_dec_not_one+0x1bc/0x1d0 [ 1930.981625] Kernel panic - not syncing: panic_on_warn set ... [ 1930.981625] [ 1930.989176] CPU: 1 PID: 14261 Comm: syz-executor.4 Not tainted 4.19.197-syzkaller #0 [ 1930.997067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1931.006429] Call Trace: [ 1931.009034] dump_stack+0x1fc/0x2ef [ 1931.012684] panic+0x26a/0x50e [ 1931.015893] ? __warn_printk+0xf3/0xf3 [ 1931.019800] ? refcount_dec_not_one+0x1bc/0x1d0 [ 1931.024484] ? __probe_kernel_read+0x130/0x1b0 [ 1931.029081] ? __warn.cold+0x5/0x5a [ 1931.032712] ? refcount_dec_not_one+0x1bc/0x1d0 [ 1931.037367] __warn.cold+0x20/0x5a [ 1931.040908] ? io_schedule_timeout+0x140/0x140 [ 1931.045505] ? refcount_dec_not_one+0x1bc/0x1d0 [ 1931.050166] report_bug+0x262/0x2b0 [ 1931.053788] do_error_trap+0x1d7/0x310 [ 1931.058102] ? math_error+0x310/0x310 [ 1931.061972] ? irq_work_claim+0xa6/0xc0 [ 1931.065939] ? irq_work_queue+0x29/0x80 [ 1931.069906] ? error_entry+0x72/0xd0 [ 1931.073603] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1931.078698] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 1931.083544] invalid_op+0x14/0x20 [ 1931.087008] RIP: 0010:refcount_dec_not_one+0x1bc/0x1d0 [ 1931.092269] Code: 1d 47 88 98 07 31 ff 89 de e8 00 71 ec fd 84 db 75 89 e8 c7 6f ec fd 48 c7 c7 c0 bb b3 88 c6 05 27 88 98 07 01 e8 64 e2 7b 04 <0f> 0b 41 bc 01 00 00 00 e9 6a ff ff ff e8 e2 94 c1 fd 66 90 41 54 [ 1931.111162] RSP: 0018:ffff8880a19df4a8 EFLAGS: 00010286 [ 1931.116536] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 1931.123897] RDX: 00000000000125c8 RSI: ffffffff814dfcc1 RDI: ffffed101433be87 [ 1931.131148] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 1931.138486] R10: 0000000000000005 R11: 0000000000000000 R12: 00000000ffffffff [ 1931.145757] R13: 1ffff1101433be96 R14: ffff8880a19df4d0 R15: ffff8880706c2e28 [ 1931.153162] ? vprintk_func+0x81/0x180 [ 1931.157084] ? refcount_dec_not_one+0x1bc/0x1d0 [ 1931.161758] ? __mutex_unlock_slowpath+0xea/0x610 [ 1931.166615] ? refcount_dec_and_test_checked+0x20/0x20 [ 1931.171887] ? wait_for_completion_io+0x10/0x10 [ 1931.176593] refcount_dec_and_mutex_lock+0x1c/0x80 [ 1931.181512] nbd_config_put+0x5bb/0x870 [ 1931.185492] nbd_genl_connect+0x11bb/0x1630 [ 1931.189808] ? nbd_xmit_timeout+0x730/0x730 [ 1931.194121] ? __sanitizer_cov_trace_switch+0x4b/0x80 [ 1931.199317] ? validate_nla+0x270/0x820 [ 1931.203289] ? nla_parse+0x1b2/0x290 [ 1931.207055] genl_family_rcv_msg+0x642/0xc40 [ 1931.211461] ? genl_rcv+0x40/0x40 [ 1931.214911] ? genl_rcv_msg+0x12f/0x160 [ 1931.218887] ? mutex_trylock+0x1a0/0x1a0 [ 1931.222957] ? __radix_tree_lookup+0x216/0x370 [ 1931.227526] genl_rcv_msg+0xbf/0x160 [ 1931.231237] netlink_rcv_skb+0x160/0x440 [ 1931.235290] ? genl_family_rcv_msg+0xc40/0xc40 [ 1931.239862] ? netlink_ack+0xae0/0xae0 [ 1931.243753] ? genl_rcv+0x15/0x40 [ 1931.247198] genl_rcv+0x24/0x40 [ 1931.250881] netlink_unicast+0x4d5/0x690 [ 1931.254936] ? netlink_sendskb+0x110/0x110 [ 1931.259233] ? __check_object_size+0x17b/0x3e0 [ 1931.263823] netlink_sendmsg+0x6bb/0xc40 [ 1931.267920] ? nlmsg_notify+0x1a0/0x1a0 [ 1931.271888] ? kernel_recvmsg+0x220/0x220 [ 1931.276038] ? nlmsg_notify+0x1a0/0x1a0 [ 1931.280004] sock_sendmsg+0xc3/0x120 [ 1931.283918] ___sys_sendmsg+0x7bb/0x8e0 [ 1931.287883] ? lock_acquire+0x170/0x3c0 [ 1931.291852] ? copy_msghdr_from_user+0x440/0x440 [ 1931.296599] ? __fget+0x32f/0x510 [ 1931.300039] ? lock_downgrade+0x720/0x720 [ 1931.304169] ? check_preemption_disabled+0x41/0x280 [ 1931.309170] ? check_preemption_disabled+0x41/0x280 [ 1931.314175] ? __fget+0x356/0x510 [ 1931.317611] ? do_dup2+0x450/0x450 [ 1931.321176] ? debug_object_active_state+0x254/0x330 [ 1931.326262] ? debug_object_init_on_stack+0x20/0x20 [ 1931.331261] ? __fdget+0x1d0/0x230 [ 1931.334795] __x64_sys_sendmsg+0x132/0x220 [ 1931.339147] ? __sys_sendmsg+0x1b0/0x1b0 [ 1931.343200] ? __se_sys_futex+0x298/0x3b0 [ 1931.347486] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 1931.353238] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1931.358254] ? do_syscall_64+0x21/0x620 [ 1931.362237] do_syscall_64+0xf9/0x620 [ 1931.366043] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1931.371244] RIP: 0033:0x4665d9 [ 1931.374420] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 1931.393401] RSP: 002b:00007f22564a0188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 1931.401098] RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 [ 1931.408355] RDX: 0000000004000000 RSI: 0000000020000300 RDI: 0000000000000004 [ 1931.415624] RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 [ 1931.422910] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 1931.430171] R13: 00007fff0989765f R14: 00007f22564a0300 R15: 0000000000022000 [ 1931.438990] Kernel Offset: disabled [ 1931.442716] Rebooting in 86400 seconds..